Papers Published by SMGRC Years,1996-2000

Smart/Micro Grids Research Center

University of Kurdistan

 

No. Title Year Abstract
Citation 
20 Load frequency controller design in a deregulated environment using flexible neural networks 2000
Abstract
Citation
19 Load frequency controller design using neural networks 2000
Abstract
Citation
18 Nonlinear and linear robust control of switching power converters 1999
Abstract
Citation
17 Robust load frequency controller in a deregulated environment: A/spl mu/-synthesis approach 1999
Abstract
Citation
16 Reduced p-based Load Frequency Control in a Deregulated Environment 1999
Abstract
Citation
15 Reduced µ-based load frequency controller in a deregulated power system environment 1999
Abstract
Citation
14 Linear robust control of switching power converters 1999
Abstract
Citation
13 Nonlinear and robust control of DC-DC switching regulators 1999
Abstract
Citation
12 Application of Kharitonov’s Theorem and its Results to Load Frequency 1998
Abstract
Citation
11 Nonlinear and robust control of DC-DC switching regulators 1998
Abstract
Citation
10 Tracking in dispatching centers using robust controller
 1998
Abstract
Citation
9 Nonlinear control of DC-DC switching regulators
 1998
Abstract
Citation
8 Application of Kharitonov’s Theorem and its Results to Load Frequency Control
 1998
Abstract
Citation
7 Transient stability enhancement and voltage regulation of power system using I/O feedback linearization technique
 1997
Abstract
Citation
6 Control of DC-DC switching regulators using artificial neural networks 
 1997
Abstract
Citation
5 Modeling, Nonlinear and Robust control of DC-DC Switching Regulators
 1997
Abstract
Citation
4 A Design-Oriented Q-V Response Modeling Approach for Grid-Forming Distributed Generators Considering Different Operation Modes
 1996
Abstract
Citation
3 Multi-Phase Direct AC Wireless Power Transfer System: Comparative Proposals Using Frequency and Amplitude Modulations
 1996
Abstract
Citation
2 Power system transient stability analysis based on descriptive study of electrical indices
 1996
Abstract
Citation
1 Robust LFC Design Using Mixed∞ H/H 2 Technique
 1996
Abstract
Citation

This paper demonstrates the application of artificial neural network with a flexible structure, as a powerful design tool, in automatic load-frequency control design in a restructured power system. A typical power system in a competitive distributed control environment with an open access organizational structure is considered. A new neural network based control strategy is used to maintain the system reliability and eliminates the frequency error. It is shown that in a deregulated environment, the conventional control methodologies are incapable of obtaining good dynamical performance. In order to achievement of all specified control objectives, dynamic neurons with a wide range of variation, and an adequate rate of flexibility are used within the structure of proposed neural network. Some nonlinear simulations are used to illustrate the design methodology.
MLA
Bevrani, Hassan, Mohammad Teshnehlab, and Hossein Bevrani. “Load frequency controller design in a deregulated environment using flexible neural networks.” 15th International Power System Conference PSC. 2000.
APA
Bevrani, H., Teshnehlab, M., & Bevrani, H. (2000). Load frequency controller design in a deregulated environment using flexible neural networks. In 15th International Power System Conference PSC (pp. 1-6).
Chicago
Bevrani, Hassan, Mohammad Teshnehlab, and Hossein Bevrani. “Load frequency controller design in a deregulated environment using flexible neural networks.” In 15th International Power System Conference PSC, pp. 1-6. 2000.
Harvard
Bevrani, H., Teshnehlab, M. and Bevrani, H., 2000. Load frequency controller design in a deregulated environment using flexible neural networks. In 15th International Power System Conference PSC (pp. 1-6).
Vancouver
Bevrani H, Teshnehlab M, Bevrani H. Load frequency controller design in a deregulated environment using flexible neural networks. In15th International Power System Conference PSC 2000 (pp. 1-6).
BibTeX
@inproceedings{bevrani2000load,
title={Load frequency controller design in a deregulated environment using flexible neural networks},
author={Bevrani, Hassan and Teshnehlab, Mohammad and Bevrani, Hossein},
booktitle={15th International Power System Conference PSC},
pages={1–6},
year={2000}
}
In this Paper, we design and introduce of a load frequency controller for typ ical power system in competitive, distributed control environment with open access organizational structure. With this new structure, coms the need for novel control strategies to maintain the reliability and eliminates the frequency error, and conventional controllers are incapable of obtaining good dynamical performance.
MLA
Bevrani, Hassan. “Load frequency controller design using neural networks.” Seminar on Power Plant Control & Instrumentation, WREC, Kermanshah, Iran. 2000.
APA
Bevrani, H. (2000, October). Load frequency controller design using neural networks. In Seminar on Power Plant Control & Instrumentation, WREC, Kermanshah, Iran.
Chicago
Bevrani, Hassan. “Load frequency controller design using neural networks.” In Seminar on Power Plant Control & Instrumentation, WREC, Kermanshah, Iran. 2000.
Harvard
Bevrani, H., 2000, October. Load frequency controller design using neural networks. In Seminar on Power Plant Control & Instrumentation, WREC, Kermanshah, Iran.
Vancouver
Bevrani H. Load frequency controller design using neural networks. InSeminar on Power Plant Control & Instrumentation, WREC, Kermanshah, Iran 2000 Oct.
BibTeX
@inproceedings{bevrani2000load,
title={Load frequency controller design using neural networks},
author={Bevrani, Hassan},
booktitle={Seminar on Power Plant Control \& Instrumentation, WREC, Kermanshah, Iran},
year={2000}
}
Switching power converters are nonlinear and time variant systems. The classical controller design for a switching power converter based on the linear model is derived by one of the conventional modelling methods. However the parameter and load variations and input unregulated voltage are not taken into consideration simultaneously in a controller design. In this paper, we use “input-output feedback linearization” technique for nonlinear control issue, and “Kharitonov, H/spl infin/ and /spl mu/-synthesis” techniques for robust control in design of nonlinear and linear robust controllers to access both satisfactory stability and satisfactory performance, even in case of uncertainties and disturbances, for typical fifth-order DC-DC switching power converter. The stability and performance of the converter and the effectiveness of the proposed controllers are demonstrated by some simulated results. Making use of …
MLA
Bevrani, Hassan, M. Abrishamchian, and Nader Safari-Shad. “Nonlinear and linear robust control of switching power converters.” Proceedings of the 1999 IEEE International Conference on Control Applications (Cat. No. 99CH36328). Vol. 1. IEEE, 1999.
APA
Bevrani, H., Abrishamchian, M., & Safari-Shad, N. (1999, August). Nonlinear and linear robust control of switching power converters. In Proceedings of the 1999 IEEE International Conference on Control Applications (Cat. No. 99CH36328) (Vol. 1, pp. 808-813). IEEE.
Chicago
Bevrani, Hassan, M. Abrishamchian, and Nader Safari-Shad. “Nonlinear and linear robust control of switching power converters.” In Proceedings of the 1999 IEEE International Conference on Control Applications (Cat. No. 99CH36328), vol. 1, pp. 808-813. IEEE, 1999.
Harvard
Bevrani, H., Abrishamchian, M. and Safari-Shad, N., 1999, August. Nonlinear and linear robust control of switching power converters. In Proceedings of the 1999 IEEE International Conference on Control Applications (Cat. No. 99CH36328) (Vol. 1, pp. 808-813). IEEE.
Vancouver
Bevrani H, Abrishamchian M, Safari-Shad N. Nonlinear and linear robust control of switching power converters. InProceedings of the 1999 IEEE International Conference on Control Applications (Cat. No. 99CH36328) 1999 Aug 22 (Vol. 1, pp. 808-813). IEEE.
BibTeX
@inproceedings{bevrani1999nonlinear,
title={Nonlinear and linear robust control of switching power converters},
author={Bevrani, Hassan and Abrishamchian, M and Safari-Shad, Nader},
booktitle={Proceedings of the 1999 IEEE International Conference on Control Applications (Cat. No. 99CH36328)},
volume={1},
pages={808–813},
year={1999},
organization={IEEE}
}
An approach based on /spl mu/-synthesis tools is proposed for the design of robust load frequency controller for electric power system in deregulated environment. In this paper, we consider the system (area) as a collection of independent generation, transmission and distribution companies, and connections between this area and the rest of the system are taken as disturbances. An example is given to illustrate the proposed approach. The resulting controller is shown to minimize the effect of disturbances and achieve acceptable frequency regulation.
MLA
Bevrani, Hassan. “Robust load frequency controller in a deregulated environment: A/spl mu/-synthesis approach.” Proceedings of the 1999 IEEE International Conference on Control Applications (Cat. No. 99CH36328). Vol. 1. IEEE, 1999.
APA
Bevrani, H. (1999, August). Robust load frequency controller in a deregulated environment: A/spl mu/-synthesis approach. In Proceedings of the 1999 IEEE International Conference on Control Applications (Cat. No. 99CH36328) (Vol. 1, pp. 616-621). IEEE.
Chicago
Bevrani, Hassan. “Robust load frequency controller in a deregulated environment: A/spl mu/-synthesis approach.” In Proceedings of the 1999 IEEE International Conference on Control Applications (Cat. No. 99CH36328), vol. 1, pp. 616-621. IEEE, 1999.
Harvard
Bevrani, H., 1999, August. Robust load frequency controller in a deregulated environment: A/spl mu/-synthesis approach. In Proceedings of the 1999 IEEE International Conference on Control Applications (Cat. No. 99CH36328) (Vol. 1, pp. 616-621). IEEE.
Vancouver
Bevrani H. Robust load frequency controller in a deregulated environment: A/spl mu/-synthesis approach. InProceedings of the 1999 IEEE International Conference on Control Applications (Cat. No. 99CH36328) 1999 Aug 22 (Vol. 1, pp. 616-621). IEEE.
BibTeX
@inproceedings{bevrani1999robust,
title={Robust load frequency controller in a deregulated environment: A/spl mu/-synthesis approach},
author={Bevrani, Hassan},
booktitle={Proceedings of the 1999 IEEE International Conference on Control Applications (Cat. No. 99CH36328)},
volume={1},
pages={616–621},
year={1999},
organization={IEEE}
}

Reduced p-based Load Frequency Control in a Deregulated Environment

MLA
Bevrani, H. “Reduced p-based Load Frequency Control in a Deregulated Environment.” 13th. Int. Power System Conf., Tehran, Iran. 1999.
APA
Bevrani, H. (1999). Reduced p-based Load Frequency Control in a Deregulated Environment. In 13th. Int. Power System Conf., Tehran, Iran.
Chicago
Bevrani, H. “Reduced p-based Load Frequency Control in a Deregulated Environment.” In 13th. Int. Power System Conf., Tehran, Iran. 1999.
Harvard
Bevrani, H., 1999. Reduced p-based Load Frequency Control in a Deregulated Environment. In 13th. Int. Power System Conf., Tehran, Iran.
Vancouver
Bevrani H. Reduced p-based Load Frequency Control in a Deregulated Environment. In13th. Int. Power System Conf., Tehran, Iran 1999.
BibTeX
@inproceedings{bevrani1999reduced,
title={Reduced p-based Load Frequency Control in a Deregulated Environment},
author={Bevrani, H},
booktitle={13th. Int. Power System Conf., Tehran, Iran},
year={1999}
}
Power systems are in transition from large, vertically integrated utilities providing power at regulated rates to restructured systems with competitive companies selling unbundled power at lower rates. In new environment, a power system includes separate generation, transmission and distribution companies with an open access policy. The classical control methodologies do not satisfy new objectives and novel control strategies are needed to maintain system reliability and meet new demands. This paper presents a reduced-order robust load-frequency controller for a restructured power system using singular values theorem. The singular values of the system observability matrix of the high order µ-controller are analyzed, and a method is used to achieve a low order load-frequency controller without degradation of the closed loop system performance. The proposed technique is tested on a power system using computer simulation.

MLA
Bevrani, Hassan. “Reduced µ-based load frequency controller in a deregulated power system environment.” 14th International Power System Conference (PSC). 1999.
APA
Bevrani, H. (1999). Reduced µ-based load frequency controller in a deregulated power system environment. In 14th International Power System Conference (PSC).
Chicago
Bevrani, Hassan. “Reduced µ-based load frequency controller in a deregulated power system environment.” In 14th International Power System Conference (PSC). 1999.
Harvard
Bevrani, H., 1999. Reduced µ-based load frequency controller in a deregulated power system environment. In 14th International Power System Conference (PSC).
Vancouver
Bevrani H. Reduced µ-based load frequency controller in a deregulated power system environment. In14th International Power System Conference (PSC) 1999.
BibTeX
@inproceedings{bevrani1999reduced,
title={Reduced $\mu$-based load frequency controller in a deregulated power system environment},
author={Bevrani, Hassan},
booktitle={14th International Power System Conference (PSC)},
year={1999}
}
Because of small size, good reliability and high efficiency, switching power converters have become increasingly popular among power supply designer. However, there are still some challenges to improve their stability and system performance for a wide range of operating conditions. To overcome control problems of switching converters, several approaches based on classical and modern control theorems have been used over the past years. In the present paper, to achieve simultaneous of robust stability and robust performance in switching power converters, three robust linear control methodologies based on singular values, Hinf and Kharitonove theorems are proposed. A comprehensive comparison study is performed, and the advantages of these techniques are highlighted against the classical control approaches.
MLA
Bevrani, Hassan, M. Abrishamchian, and N. Safari-shad. “Linear robust control of switching power converters.” (1999): 17-24.
APA
Bevrani, H., Abrishamchian, M., & Safari-shad, N. (1999). Linear robust control of switching power converters.
Chicago
Bevrani, Hassan, M. Abrishamchian, and N. Safari-shad. “Linear robust control of switching power converters.” (1999): 17-24.
Harvard
Bevrani, H., Abrishamchian, M. and Safari-shad, N., 1999. Linear robust control of switching power converters.
Vancouver
Bevrani H, Abrishamchian M, Safari-shad N. Linear robust control of switching power converters.
BibTeX
@article{bevrani1999linear,
title={Linear robust control of switching power converters},
author={Bevrani, Hassan and Abrishamchian, M and Safari-shad, N},
year={1999}
}
CiNii 国立情報学研究所 学術情報ナビゲータ[サイニィ]. メニュー 検索 …
MLA
Abrishamchian, M. “Nonlinear and robust control of DC-DC switching regulators.” 3rd Asia-Pacific Conf. on Control and Measurement (APCCM), China (1999). 1999.
APA
Abrishamchian, M. (1999). Nonlinear and robust control of DC-DC switching regulators. In 3rd Asia-Pacific Conf. on Control and Measurement (APCCM), China (1999).
Chicago
Abrishamchian, M. “Nonlinear and robust control of DC-DC switching regulators.” In 3rd Asia-Pacific Conf. on Control and Measurement (APCCM), China (1999). 1999.
Harvard
Abrishamchian, M., 1999. Nonlinear and robust control of DC-DC switching regulators. In 3rd Asia-Pacific Conf. on Control and Measurement (APCCM), China (1999).
Vancouver
Abrishamchian M. Nonlinear and robust control of DC-DC switching regulators. In3rd Asia-Pacific Conf. on Control and Measurement (APCCM), China (1999) 1999.
BibTeX
@inproceedings{abrishamchian1999nonlinear,
title={Nonlinear and robust control of DC-DC switching regulators},
author={Abrishamchian, M},
booktitle={3rd Asia-Pacific Conf. on Control and Measurement (APCCM), China (1999)},
year={1999}
}

Application of Kharitonov’s Theorem and its Results to Load Frequency

MLA
Bevrani, H. “Application of Kharitonov’s Theorem and its Results to Load Frequency.” Barg-Journal of Electrical Science and Technology (in Persian) 24 (1998).
APA
Bevrani, H. (1998). Application of Kharitonov’s Theorem and its Results to Load Frequency. Barg-Journal of Electrical Science and Technology (in Persian), (24).
Chicago
Bevrani, H. “Application of Kharitonov’s Theorem and its Results to Load Frequency.” Barg-Journal of Electrical Science and Technology (in Persian) 24 (1998).
Harvard
Bevrani, H., 1998. Application of Kharitonov’s Theorem and its Results to Load Frequency. Barg-Journal of Electrical Science and Technology (in Persian), (24).
Vancouver
Bevrani H. Application of Kharitonov’s Theorem and its Results to Load Frequency. Barg-Journal of Electrical Science and Technology (in Persian). 1998 Sep(24).
BibTeX
@article{bevrani1998application,
title={Application of Kharitonov’s Theorem and its Results to Load Frequency},
author={Bevrani, H},
journal={Barg-Journal of Electrical Science and Technology (in Persian)},
number={24},
year={1998}
}
DC-DC switching regulators have a nonlinear and time-varying nature. Any change in operating conditions leads to significant changes in dynamical model so that desired performance and even stability are lost. This fact together with the uprising need for high quality and high-efficiency regulators implies the requirement for modern and systematic approaches to the control of these systems. In this paper, to achieve satisfactory stability and satisfactory performance in DC-DC switching regulators, several nonlinear and linear robust control strategies are employed. Input-output feedback linearization as a suitable nonlinear control issue and Kharitonov theorem, H and M as three powerful linear robust control techniques are selected. The proposed controllers are compared to each other and conventional controllers. Computer simulations exhibit the high efficiency of these methods compared to conventional methodologies.
MLA
Abrishamchian, M. “Nonlinear and robust control of DC-DC switching regulators.” 3rd Asia-Pacific Conf. on Control and Measurement (APCCM), China (1999). 1999.
APA
Abrishamchian, M. (1999). Nonlinear and robust control of DC-DC switching regulators. In 3rd Asia-Pacific Conf. on Control and Measurement (APCCM), China (1999).
Chicago
Abrishamchian, M. “Nonlinear and robust control of DC-DC switching regulators.” In 3rd Asia-Pacific Conf. on Control and Measurement (APCCM), China (1999). 1999.
Harvard
Abrishamchian, M., 1999. Nonlinear and robust control of DC-DC switching regulators. In 3rd Asia-Pacific Conf. on Control and Measurement (APCCM), China (1999).
Vancouver
Abrishamchian M. Nonlinear and robust control of DC-DC switching regulators. In3rd Asia-Pacific Conf. on Control and Measurement (APCCM), China (1999) 1999.
BibTeX
@inproceedings{abrishamchian1999nonlinear,
title={Nonlinear and robust control of DC-DC switching regulators},
author={Abrishamchian, M},
booktitle={3rd Asia-Pacific Conf. on Control and Measurement (APCCM), China (1999)},
year={1999}
}
Optimization of system performance and minimizing of some cost functions are important control targets in dispatching centers and SCADA systems. In addition to remote measurements, monitoring and providing various reports, the automatic control section has an important role. Tracking of reference signals and meaningful curves is known as the main objectives of this section. For example, for optimizing of fuel consumption in power plants, optimal fuel curve is needed, or tracking a fixed frequency (50 or 60 Hz) reference is known as a target for load-frequency control systems. In order to achieve a desired tracking, many control methodologies have been presented over the years, which most of them are based on classical techniques. In the present paper an H∞ control methodology is used to solve the typical tracking control problems in dispatching centers. The proposed methodology is applied for the purpose of frequency regulation in an isolated control area. The research is supplemented by computer simulation results.
MLA
Bevrani, Hassan. “Tracking in dispatching centers using robust controller.” Technical Journal of Electric Power Industry (San’at-e-Barg, Iran) 26 (1998): 36-39.
APA
Bevrani, H. (1998). Tracking in dispatching centers using robust controller. Technical Journal of Electric Power Industry (San’at-e-Barg, Iran), (26), 36-39.
Chicago
Bevrani, Hassan. “Tracking in dispatching centers using robust controller.” Technical Journal of Electric Power Industry (San’at-e-Barg, Iran) 26 (1998): 36-39.
Harvard
Bevrani, H., 1998. Tracking in dispatching centers using robust controller. Technical Journal of Electric Power Industry (San’at-e-Barg, Iran), (26), pp.36-39.
Vancouver
Bevrani H. Tracking in dispatching centers using robust controller. Technical Journal of Electric Power Industry (San’at-e-Barg, Iran). 1998(26):36-9.
BibTeX
@article{bevrani1998tracking,
title={Tracking in dispatching centers using robust controller},
author={Bevrani, Hassan},
journal={Technical Journal of Electric Power Industry (San’at-e-Barg, Iran)},
number={26},
pages={36–39},
year={1998}
}
DC-DC switching regulators are highly nonlinear systems which are subjected to significant variation in the line voltage and load, uncertainty in the circuit parameters and perturbations in switching times; such that the classical linear control are unable to achieve specified objectives and desired performance. These considerations in conjunction with increasing demand for high quality DC-DC switching regulators has necessitated more effective and precise methodologies in control design for such systems. In this paper, the input-output feedback linearization technique as a powerful nonlinear control tool is used to obtain a suitable controller which guarantee satisfactory operation of the system under realistic operating conditions. The resulting controller is shown to minimize the effect of disturbances and achieve acceptable regulation. The potential superiorities of the proposed method over classical methodologies are also discussed.
MLA
Bevrani, Hassan, N. Safari-shad, and M. Abrishamchian. “Nonlinear control of DC-DC switching regulators.” (1998): 138-145.
APA
Bevrani, H., Safari-shad, N., & Abrishamchian, M. (1998). Nonlinear control of DC-DC switching regulators.
Chicago
Bevrani, Hassan, N. Safari-shad, and M. Abrishamchian. “Nonlinear control of DC-DC switching regulators.” (1998): 138-145.
Harvard
Bevrani, H., Safari-shad, N. and Abrishamchian, M., 1998. Nonlinear control of DC-DC switching regulators.
Vancouver
Bevrani H, Safari-shad N, Abrishamchian M. Nonlinear control of DC-DC switching regulators.
BibTeX
@article{bevrani1998nonlinear,
title={Nonlinear control of DC-DC switching regulators},
author={Bevrani, Hassan and Safari-shad, N and Abrishamchian, M},
year={1998}
}
The classical design of load-frequency controller is usually based on the conventionally tuned PI controllers. These controllers are designed for a particular operating point of the system. Closed-loop system stability and acceptable performance is only achieved for slight deviations from the nominal operating point of the power system. In the present paper, to overcome the problem of parameter variations and to maintain the simplicity of controller, a new robust power system load-frequency controller is proposed. The Kharitonov’s theorem and its results are utilized to design robust controller to achieve robust stability and performance. Then, robust stability analysis is carried out graphically by employing the notions of “Value set” and “Zero exclusion”. Simulation results are given to show the robust stability and performance of the designed controller over a wide range of system uncertainties and load disturbances.
MLA
Bevrani, Hassan. “Application of Kharitonov’s Theorem and its Results to Load Frequency Control.” Iranian Journal of Electrical Science and Technology (BARGH) 24 (1998): 82-95.
APA
Bevrani, H. (1998). Application of Kharitonov’s Theorem and its Results to Load Frequency Control. Iranian Journal of Electrical Science and Technology (BARGH), (24), 82-95.
Chicago
Bevrani, Hassan. “Application of Kharitonov’s Theorem and its Results to Load Frequency Control.” Iranian Journal of Electrical Science and Technology (BARGH) 24 (1998): 82-95.
Harvard
Bevrani, H., 1998. Application of Kharitonov’s Theorem and its Results to Load Frequency Control. Iranian Journal of Electrical Science and Technology (BARGH), (24), pp.82-95.
Vancouver
Bevrani H. Application of Kharitonov’s Theorem and its Results to Load Frequency Control. Iranian Journal of Electrical Science and Technology (BARGH). 1998(24):82-95.
BibTeX
@article{bevrani1998application,
title={Application of Kharitonov’s Theorem and its Results to Load Frequency Control},
author={Bevrani, Hassan},
journal={Iranian Journal of Electrical Science and Technology (BARGH)},
number={24},
pages={82–95},
year={1998}
}
To maintain a high degree of reliability, the impact of major disturbances, such as a large sudden fault, should be considered during power system stabilizer design. The problem of designing controllers to prevent an electric power system losing synchronism after a large sudden fault is of great importance in power system design. The conventional stabilizer designs based on approximate linearization models are not adequate for large disturbances. When a large fault occurs, the behavior of the system changes a lot, and in many cases a linear controller cannot maintain adequate stability. In this paper, by using the input-output feedback linearization technique and asymptotic output tracking theorem, a novel excitation control system is resented. Improvement of transient stability and voltage regulation of a single machine infinite bus power system in the presence of a symmetrical three phases short-circuit fault is considered as a test example. The simulation results show that the power system can keep transiently stable and achieve good post fault voltage regulation with the proposed nonlinear controller.

MLA
Bevrani, Hassan. “Transient stability enhancement and voltage regulation of power system using I/O feedback linearization technique.” 12th International Power System Conference-PSC. 1997.
APA
Bevrani, H. (1997). Transient stability enhancement and voltage regulation of power system using I/O feedback linearization technique. In 12th International Power System Conference-PSC (pp. 85-96).
Chicago
Bevrani, Hassan. “Transient stability enhancement and voltage regulation of power system using I/O feedback linearization technique.” In 12th International Power System Conference-PSC, pp. 85-96. 1997.
Harvard
Bevrani, H., 1997. Transient stability enhancement and voltage regulation of power system using I/O feedback linearization technique. In 12th International Power System Conference-PSC (pp. 85-96).
Vancouver
Bevrani H. Transient stability enhancement and voltage regulation of power system using I/O feedback linearization technique. In12th International Power System Conference-PSC 1997 (pp. 85-96).
BibTeX
@inproceedings{bevrani1997transient,
title={Transient stability enhancement and voltage regulation of power system using I/O feedback linearization technique},
author={Bevrani, Hassan},
booktitle={12th International Power System Conference-PSC},
pages={85–96},
year={1997}
}
This paper addresses the application of artificial neural networks in control design of DC-DC switching regulators. These regulators are highly nonlinear and time variable. Any small change in operating point as well as changes in line voltage and load causes larger changes in dynamic model, so that the system performance and even stability can be affected. Flexibility of neural networks (NN) during learning process provides a suitable tool for controlling of complex nonlinear systems such as switching regulators. The present paper attempts to show this claim by comparing the performance of closed loop system (using NN-based controller) with the classical design methods. The results have been supplemented by nonlinear simulations.
MLA
Teshnelab, Mohammad, Nader Safari-Shad, and Hassan Bevrani. “Control of DC-DC switching regulators using artificial neural networks.” 5th Iranian Conference on Electrical Engineering ICEE-97. 1997.
APA
Teshnelab, M., Safari-Shad, N., & Bevrani, H. (1997). Control of DC-DC switching regulators using artificial neural networks. In 5th Iranian Conference on Electrical Engineering ICEE-97 (pp. 123-130).
Chicago
Teshnelab, Mohammad, Nader Safari-Shad, and Hassan Bevrani. “Control of DC-DC switching regulators using artificial neural networks.” In 5th Iranian Conference on Electrical Engineering ICEE-97, pp. 123-130. 1997.
Harvard
Teshnelab, M., Safari-Shad, N. and Bevrani, H., 1997. Control of DC-DC switching regulators using artificial neural networks. In 5th Iranian Conference on Electrical Engineering ICEE-97 (pp. 123-130).
Vancouver
Teshnelab M, Safari-Shad N, Bevrani H. Control of DC-DC switching regulators using artificial neural networks. In5th Iranian Conference on Electrical Engineering ICEE-97 1997 (pp. 123-130).
BibTeX
@inproceedings{teshnelab1997control,
title={Control of DC-DC switching regulators using artificial neural networks},
author={Teshnelab, Mohammad and Safari-Shad, Nader and Bevrani, Hassan},
booktitle={5th Iranian Conference on Electrical Engineering ICEE-97},
pages={123–130},
year={1997}
}
It is generally known that DC-DC switching regulators are highly nonlinear systems which are subjected to significant variation in the line voltage and load, uncertainty in the circuit parameters and perturbations in switching times. To assure stable operation and acceptable performance despite the disturbances and inevitable uncertainty associated with such systems, highly accurate regulation schemes must be devised. Indeed the routine application of most classical compensation techniques are severely limited when tight regulation measures have to be achieved. These considerations in conjunction with increasing demand for high quality DC-DC switching regulators has necessitated more systematic and precise methodologies in modeling and control design for such systems. The first step in the present thesis is to introduce various techniques for modeling switching regulators specifically models which account for parametric uncertainty and the nonlinear switching effects are intended. Using the models obtained in this fashion, the next step will be to apply nonlinear (input-output feedback linearization) and robust control (Mu-synthesis, Hinf and Kharitonov theorems) techniques to obtain controllers which guarantee satisfactory operation of the system under realistic operating conditions. The resulting controllers are shown to minimize the effect of disturbances and achieve acceptable regulation. The potential superiorities of these methods over classical methodologies are also discussed. At least, two approaches based on Mu-analysis and Kharitonov’s theorem are proposed for the analysis of switching regulators. Applications to practical …

MLA
Bevrani, Hassan. “Modeling, Nonlinear and Robust control of DC-DC Switching Regulators.” (1997).
APA
Bevrani, H. (1997). Modeling, Nonlinear and Robust control of DC-DC Switching Regulators.
Chicago
Bevrani, Hassan. “Modeling, Nonlinear and Robust control of DC-DC Switching Regulators.” (1997).
Harvard
Bevrani, H., 1997. Modeling, Nonlinear and Robust control of DC-DC Switching Regulators.
Vancouver
Bevrani H. Modeling, Nonlinear and Robust control of DC-DC Switching Regulators.
BibTeX
@article{bevrani1997modeling,
title={Modeling, Nonlinear and Robust control of DC-DC Switching Regulators},
author={Bevrani, Hassan},
year={1997},
publisher={KN Toosi University of Technology}
}
This paper presents a design-oriented modeling approach to analyze the Q-V control loop of grid-forming distributed generators (DGs). Unlike previous modeling methods, the proposed approach covers all typical operation modes of grid-forming DGs. No matter which type of inner control scheme is applied, once its state-space model in grid-connected mode is established, the models in islanded single-DG mode and islanded multi-DG mode can be obtained through the proposed formulas. With this novel framework, we analyze and compare two major
MLA
Liu, Jia, Hassan Bevrani, and Toshifumi Ise. “A Design-Oriented Q-V Response Modeling Approach for Grid-Forming Distributed Generators Considering Different Operation Modes.”
APA
Liu, J., Bevrani, H., & Ise, T. A Design-Oriented Q-V Response Modeling Approach for Grid-Forming Distributed Generators Considering Different Operation Modes.
Chicago
Liu, Jia, Hassan Bevrani, and Toshifumi Ise. “A Design-Oriented Q-V Response Modeling Approach for Grid-Forming Distributed Generators Considering Different Operation Modes.”
Harvard
Liu, J., Bevrani, H. and Ise, T., A Design-Oriented Q-V Response Modeling Approach for Grid-Forming Distributed Generators Considering Different Operation Modes.
Vancouver
Liu J, Bevrani H, Ise T. A Design-Oriented Q-V Response Modeling Approach for Grid-Forming Distributed Generators Considering Different Operation Modes.
BibTeX
@article{liudesign,
title={A Design-Oriented Q-V Response Modeling Approach for Grid-Forming Distributed Generators Considering Different Operation Modes},
author={Liu, Jia and Bevrani, Hassan and Ise, Toshifumi}
}
Using multi-load wireless power transfer (WPT) systems to supply power to multiple receivers with a single transmitter is an interesting topic. However, previous studies are all based on a dc-dc WPT system. If the loads demand ac power, additional dc-ac inverters need to be implemented, which increases the system complexity and cost. This paper addresses two direct ac WPT systems that can regulate the ac power of multiple phases or loads independently, using frequency modulation (FM) and amplitude modulation (AM), respectively. The proposed WPT systems can directly control the ac power of multiple loads through the transmitter side, without any power converter at the receiver side. A typical application of the proposed system is for powering a three-phase load in a rotational object, eg, three-phase motors in articulated robots or in-wheel motors. To demonstrate the feasibility of the proposed WPT systems, simulation and experiment studies of a wireless threephase power transfer are presented. The results suggest that AM is a more advantageous solution to a direct ac WPT system. A power-loss breakdown analysis is presented to suggest future steps of efficiency improvement.
MLA
Ota, Hiroaki, et al. “Multi-Phase Direct AC Wireless Power Transfer System: Comparative Proposals Using Frequency and Amplitude Modulations.”
APA
Ota, H., Liu, J., Miura, Y., Yanagisawa, Y., Wada, A., Sakabe, S., … & Ise, T. Multi-Phase Direct AC Wireless Power Transfer System: Comparative Proposals Using Frequency and Amplitude Modulations.
Chicago
Ota, Hiroaki, Jia Liu, Yushi Miura, Yuta Yanagisawa, Akihito Wada, Shigekazu Sakabe, Hassan Bevrani, and Toshifumi Ise. “Multi-Phase Direct AC Wireless Power Transfer System: Comparative Proposals Using Frequency and Amplitude Modulations.”
Harvard
Ota, H., Liu, J., Miura, Y., Yanagisawa, Y., Wada, A., Sakabe, S., Bevrani, H. and Ise, T., Multi-Phase Direct AC Wireless Power Transfer System: Comparative Proposals Using Frequency and Amplitude Modulations.
Vancouver
Ota H, Liu J, Miura Y, Yanagisawa Y, Wada A, Sakabe S, Bevrani H, Ise T. Multi-Phase Direct AC Wireless Power Transfer System: Comparative Proposals Using Frequency and Amplitude Modulations.
BibTeX
@article{otamulti,
title={Multi-Phase Direct AC Wireless Power Transfer System: Comparative Proposals Using Frequency and Amplitude Modulations},
author={Ota, Hiroaki and Liu, Jia and Miura, Yushi and Yanagisawa, Yuta and Wada, Akihito and Sakabe, Shigekazu and Bevrani, Hassan and Ise, Toshifumi}
}
Power system dynamic analysis and security assessment are becoming more significant today due to increase the size and complexity because of restructuring, emerging new uncertainties, integration of renewable energy sources, distributed generation and micro grids. Precise modeling of all contributed elements/devices, understanding interactions in detail, and observing hidden dynamics using existing analysis tools/theorems are difficult, and even impossible.
In this project, the power system is considered as a continuum and the propagated electromechanical waves initiated by faults and other random events are studied to provide a new scheme for stability investigation of a large dimensional system. For this purpose, the measured electrical indices (such as rotor angle and bus voltage) following a fault in different points among the network are used, and the behavior of the propagated waves through the lines, nodes and buses is analyzed. The impact of weak transmission links on a progressive electromechanical wave using energy function concept is addressed. It is also emphasized that determining severity of a disturbance/contingency accurately, without considering the related electromechanical waves, hidden dynamics and their properties is not secure enough. Considering these phenomena needs heavy and time consuming calculation which is not suitable for online stability assessment problems. However, using a continuum model for a power system reduces the burden of complex calculations.
MLA
Bevrani, Hassan, and A. G. Tikdari. “Power system stability analysis based on descriptive study of electrical indices.” ASIJ 5th Scientific Conference. 2010.
APA
Bevrani, H., & Tikdari, A. G. (2010, March). Power system stability analysis based on descriptive study of electrical indices. In ASIJ 5th Scientific Conference (p. 3).
Chicago
Bevrani, Hassan, and A. G. Tikdari. “Power system stability analysis based on descriptive study of electrical indices.” In ASIJ 5th Scientific Conference, p. 3. 2010.
Harvard
Bevrani, H. and Tikdari, A.G., 2010, March. Power system stability analysis based on descriptive study of electrical indices. In ASIJ 5th Scientific Conference (p. 3).
Vancouver
Bevrani H, Tikdari AG. Power system stability analysis based on descriptive study of electrical indices. InASIJ 5th Scientific Conference 2010 Mar 6 (p. 3).
BibTeX
@inproceedings{bevrani2010power,
title={Power system stability analysis based on descriptive study of electrical indices},
author={Bevrani, Hassan and Tikdari, AG},
booktitle={ASIJ 5th Scientific Conference},
pages={3},
year={2010}
}

This paper addresses a new decentralized robust control design for load-frequency control (LFC) in multi-area power systems. The LFC problem is considered as a multi-objective problem and formulated via a mixed H 2 /H ∞ control technique, then it is easily carried out to synthesis the desired robust controllers by solving standard linear matrix inequalities (LMI). A three-area power system example with a wide range of load changes is given to illustrate the proposed approach. The results are compared with pure H ∞ method. It is shown that the designed controllers maintain the robust performance, minimize the effect of disturbances and specified uncertainties, effectively. 

MLA
Bevrani, Hassan, Yasunori Mitani, and Kiichiro Tsuji. “Robust LFC Design Using Mixed∞ H/H 2 Technique.”
APA
Bevrani, H., Mitani, Y., & Tsuji, K. Robust LFC Design Using Mixed∞ H/H 2 Technique.
Chicago
Bevrani, Hassan, Yasunori Mitani, and Kiichiro Tsuji. “Robust LFC Design Using Mixed∞ H/H 2 Technique.”
Harvard
Bevrani, H., Mitani, Y. and Tsuji, K., Robust LFC Design Using Mixed∞ H/H 2 Technique.
Vancouver
Bevrani H, Mitani Y, Tsuji K. Robust LFC Design Using Mixed∞ H/H 2 Technique.
BibTeX
@article{bevranirobust,
title={Robust LFC Design Using Mixed∞ H/H 2 Technique},
author={Bevrani, Hassan and Mitani, Yasunori and Tsuji, Kiichiro}
}