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Transactions: WSEAS TRANSACTIONS ON CIRCUITS AND SYSTEMS
Transactions ID Number: 54-109
Full Name: Prechanon Kumkratug
Position: Assistant Professor
Age: ON
Sex: Male
Address: Faculty of Engineering at Si Racha, Kasetsart University at Si Racha campus,199 M.6, Tungsukhla, Si Racha, Chonburi
Country: THAILAND
Tel: 6638354580
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Fax: 6638354849
E-mail address: pc475601@gmail.com
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Title of the Paper: statcom control strategy based on lyapunov energy function and fuzzy logic control for improving transient stability of multimachine power system
Authors as they appear in the Paper: prechanon kumkratug
Email addresses of all the authors: pc475601@gmail.com
Number of paper pages: 10
Abstract: This paper proposes the control strategy of Static Synchronous Compensator (STATCOM) for improving transient stability of multimachine power system. The multimachine power system has high nonlinearity for disturbance response. The concept of Lyapunov energy function is applied to derive nonlinear control strategy and it was found that the time derivative of line voltage is not only can apply to control the STATCOM in multimachine system but also is locally measurable signal. The fuzzy logic control is also applied to overcome the uncertainty of various disturbances in multimachine power system. This paper presents the method of investigating the effect of STATCOM on transient stability improvement. The proposed control strategy and the method of simulation are tested on the Kundur's inter-area power system and new England power system. It was found that the proposed nonlinear control strategy can improve transient stability of multimachine power system.
Keywords: Flexible ac transmission system, power system, static synchronous compensation (statcom), , fuzzy logic control, transient stability, lyapunov, nonlinear control.
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