Power System Stability as Affected by Automatic Control of Generators-Some Methods of Analysis and Synthesis

Venikov, V.A.; Stroev, V.A.

doi:10.1109/tpas.1971.292859

Cited by 15 publications

(3 citation statements)

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“…In the last three decades, some studies have considered an integrated design approach to AVR and PSS design using domain partitioning [3], robust pole-replacement [4], and adaptive control [5]. Moreover, several control methods have recently been made to coordinate the various requirements for stabilization and voltage regulation within the one new control structure [6].…”

Section: Introductionmentioning

confidence: 99%

Wide-Area Power System Oscillation Damping Using Robust Control Technique

Qudaih

Mitani

Mohamed

2012

2012 Asia-Pacific Power and Energy Engineering Conference

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This paper presents a new approach to deal with the problem of robust tuning of power system stabilizer (PSS) and automatic voltage regulator (AVR) in multi-machine power systems. The proposed method is based on a model predictive control (MPC) technique, to improve the stability of the widearea power system with multiple generators and distribution systems including dispersed generations. The proposed method provides better damping of power system oscillations under small and large disturbances even with the inclusion of local PSSs. The effectiveness of the proposed approach is demonstrated through a two areas, four machines power system. A performance comparison between the proposed controller and some of other controllers is carried out confirming the superiority of the proposed technique. It has also been observed that the proposed algorithm can be successfully applied to larger multi-area power systems and do not suffer from computational difficulties. The proposed algorithm carried out using MATLAB /SIMULINK software package.Index Terms--multi-area power systems, power system stabilizer, automatic voltage regulator, and model predictive control.I.

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Section: Introductionmentioning

confidence: 99%

Wide-Area Power System Oscillation Damping Using Robust Control Technique

Qudaih

Mitani

Mohamed

2012

2012 Asia-Pacific Power and Energy Engineering Conference

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“…A result for constant AVR gain is stated in Ref. (5). Interested readers can refer to the mentioned references to see the analysis detail.…”

Section: Introductionmentioning

confidence: 99%

“…In the last two decades, some studies have considered an integrated design approach to AVR and PSS design using domain partitioning (5) , robust pole-replacement (6) and adaptive control (7) . Recently, several control methods have been made to coordinate the various requirements for stabilization and voltage regulation within the one controller (8)- (12) .…”

Section: Introductionmentioning

confidence: 99%

Robust Coordinated AVR-PSS Design Using H.INF. Static Output Feedback Control

Bevrani

Hiyama

2007

IEEJ Trans. PE

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Keywords: H∞ control, static output feedback, LMI, voltage regulation, power system stabilizer, robust performance Power system stability and voltage regulation have been considered as an important problem for secure system operation over the years. Currently, because of expanding physical setups, functionality and complexity of power systems, the mentioned problem becomes a more significant than the past. That is why in recent years a great deal of attention has been paid to application of advanced control techniques in power system as one of the more promising application areas.Conventionally, the automatic voltage regulation and power system stabilizer (AVR-PSS) design is considered as a sequential design including two separate stages. Firstly, the AVR is designed to meet the specified voltage regulation performance and then the PSS is designed to satisfy the stability and required damping performance. It is well known that the stability and voltage regulation are ascribed to different model descriptions, and it has been long recognized that AVR and PSS have inherent conflicting objectives. Therefore, successful achievement of both goals using nonintegrated design approach turns out to be very difficult, and, it is reasonable to realize a compromise between the desired stability and regulation performances by a unique controller.In the last two decades, several control methods have made to coordinate the various requirements for stabilization and voltage regulation within the one controller. Some studies have been considered an integrated design approach to AVR and PSS design using domain partitioning, robust pole-replacement, adaptive control, Linear Quadratic Gaussian (LQG) optimal technique, Internal Model Control (IMC) method, fuzzy logic and nonlinear control design approaches. However, because of complexity of control structure, numerous unknown design parameters and neglecting real constraints, the proposed linear control methods are not well suited to meet the design objectives for a multi-machine power system. The performance of those nonlinear schemes that use a switching strategy of two different kinds of controller to cover the different behavior of system operation during transient period and post-transient period is highly depended upon the selection of switching time. Moreover, using different control surfaces through a nonlinear structure increases the complexity of designed controllers.In this paper, the stabilization and voltage regulation considering the practical constraints for feasibility are formulated via an H∞ static output feedback (H∞-SOF) control problem which it can be easily solved using an iterative linear matrix inequalities (LMI) algorithm. The resulting controller is not only robust but it also allows direct and effective trade-off between voltage regulation and damping performance. The proposed controller uses the measurable signals and has merely proportional gains; In result it gives considerable promise for implementation, especially in a multi-machine system. In fact the...

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