Employing fuzzy logic in damping power system oscillations using SVC

Joorabian, Mahmood; Razzaz, M.; Ebadi, Mazdak; Moghaddasian, M.

doi:10.1109/icee.2008.4553915

Cited by 11 publications

(5 citation statements)

References 12 publications

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“…It has been effectively utilized in many fields of knowledge to solve control and optimization problems (Luo et al, 2009). An FLC (fuzzy logic controller) is a good means to control the parameters, when there is no direct and exact relation between the input and output of the system, and we only have some linguistic relations in the If-Then form (Joorabian et al, 2008). The use of the fuzzy logic has received increased attention in recent years because of its usefulness in reducing the need for complex mathematical models in problem solving (Ng et al, 2000).…”

Section: Fuzzy Logicmentioning

confidence: 99%

Combined design of VSC-HVDC and PSS controllers for LFO damping enhancement

Farhang

Tirtashi

Noroozian

et al. 2013

Transactions of the Institute of Measurement and Control

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The purpose of this paper is to present a novel combined design of the voltage source converter–high voltage direct current (VSC-HVDC) and the power system stabilizer (PSS) controllers to obtain a better dynamical response. The proposed technique is applied to enhance the damping of the power system low-frequency oscillations (LFOs) and results are compared with traditional design. A fuzzy logic controller is designed for PSS (FPSS). Then, a chaotic optimization algorithm, which has a strong ability for finding the most optimistic results, is employed, in presence of FPSS, to search for optimal VSC-HVDC output feedback controller parameters. Moreover, a singular value decomposition method is utilized to select the most effective damping control signal of the VSC-HVDC output feedback controllers. The novel proposed controllers are evaluated on an AC/DC power system. The simulation results demonstrate that the combined controllers have an excellent capability for damping power system LFOs and greatly enhance the dynamic stability of the power system. Also, the system performance analysis under different operating conditions and some performance indices show the effectiveness of the proposed controllers. The benefit of the suggested procedure is greatly improving the dynamic response of the system. In addition, the overshoots, undershoots and the settling times are dramatically reduced by applying the proposed method.

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Section: Fuzzy Logicmentioning

confidence: 99%

Combined design of VSC-HVDC and PSS controllers for LFO damping enhancement

Farhang

Tirtashi

Noroozian

et al. 2013

Transactions of the Institute of Measurement and Control

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show abstract

“…The FLC is a good means to control the parameters when there is not any direct or exact relation between the input and the output of a system, and we only have some linguistic relations in the If-Then form [31]. The use of fuzzy logic has received increased attention in recent years because of its usefulness in reducing the need for complex mathematical models in problem solving [32].…”

Section: Fuzzy Logicmentioning

confidence: 99%

Combined Design of PSS and STATCOM Controllers for Power System Stability Enhancement

Rohani¹,

Tirtashi²,

Noroozian³

2011

Journal of Power Electronics

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In this paper a robust method is presented for the combined design of STATCOM and Power System Stabilizer (PSS) controllers in order to enhance the damping of the low frequency oscillations in power systems. The combined design problems among PSS and STATCOM internal ac and dc voltage controllers has been taken into consideration. The equations that describe the proposed system have been linearized and a Fuzzy Logic Controller (FLC) has been designed for the PSS. Then, the Particle Swarm Optimization technique (PSO) which has a strong ability to find the most optimistic results is employed to search for the optimal STATCOM controller parameters. The proposed controllers are evaluated on a single machine infinite bus power system with the STATCOM installed in the midpoint of the transmission line. The results analysis reveals that the combined design has an excellent capability in damping a power system's low frequency oscillations, and that it greatly enhances the dynamic stability of power systems. Moreover, a system performance analysis under different operating conditions and some performance indices studies show the effectiveness of the combined design.

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“…FLC is a good mean to control the parameters when there isn't any direct and exact relation between input and output of the system, and we only have some linguistic relations in the If-Then form [8]. The use of fuzzy logic has received increased attention in recent years because of its usefulness in reducing the need for complex mathematical models in problem solving [9].…”

Section: Fuzzy Logic Controllermentioning

confidence: 99%

TCPS controller design using Fuzzy Logic Controller for power system stability enhancement

Tirtashi

Mazlumi

Rohani

2010

2010 IEEE International Conference on Power and Energy

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In this paper, a Fuzzy Logic Controller (FLC) is proposed for Thyristor Controlled Phase Shifter (TCPS) to improve power system dynamic performance. The FLC has been designed for the TCPS which is located at the terminal of the generator in order to damp the Low Frequency Oscillations (LFO). From the first, for normal loading condition, the system with proposed controller has been simulated while the input power of generator has been changed suddenly, then the dynamic responses of generator have been presented with and without controller. Thereafter, for two states viz normal loading condition and heavy loading condition, to show the robustness of proposed controller, the system with previous disturbance has been simulated, then the dynamic responses of generator have been shown. The effectiveness of the proposed controller is demonstrated by simulation results.I.

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Employing fuzzy logic in damping power system oscillations using SVC

Cited by 11 publications

References 12 publications

Combined design of VSC-HVDC and PSS controllers for LFO damping enhancement

Combined design of VSC-HVDC and PSS controllers for LFO damping enhancement

Combined Design of PSS and STATCOM Controllers for Power System Stability Enhancement

TCPS controller design using Fuzzy Logic Controller for power system stability enhancement

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