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Integration of space vector pulse width modulation controlled STATCOM with wind farm connected to multimachine power system
In this work, dynamic and transient characteristics of a multimachine power system connected with two wind farms composed of fixed speed wind turbine generator systems (WTGS) are analyzed. At each wind farm the terminal one space vector pulse width modulation controlled voltage source converter based static synchronous compensator (STATCOM) is considered to be connected. The capacitor bank capacity of fixed speed wind generator is reduced by certain percentages when a STATCOM is integrated at a wind farm terminal. As wind speed is always fluctuating, the terminal voltage of a fixed speed wind generator also fluctuates randomly, which has an adverse effect on the rest of the power system. It is reported that the STATCOM with a reduced capacitor bank can decrease the voltage fluctuations of the multimachine power system as well as wind generator terminals. Moreover, it is shown that a STATCOM can also enhance the transient stability of induction and synchronous generators when a network disturbance occurs in the power system. Since shaft system modeling of a wind turbine has a significant effect on the transient stability analysis of WTGS, a two-mass shaft model is adopted in this study. Both of the symmetrical and the unsymmetrical faults are analyzed in light of the real wind farm grid code. The transient performance of a STATCOM on the network is evaluated by the transient stability index based on the total kinetic energy of generators. For dynamic performance evaluation, real wind speed data are used in the simulation. Finally, it is concluded that the STATCOM can enhance both dynamic and transient stability of wind farms connected with a multimachine power system.
Integration of space vector pulse width modulation controlled STATCOM with wind farm connected to multimachine power system
In this work, dynamic and transient characteristics of a multimachine power system connected with two wind farms composed of fixed speed wind turbine generator systems (WTGS) are analyzed. At each wind farm the terminal one space vector pulse width modulation controlled voltage source converter based static synchronous compensator (STATCOM) is considered to be connected. The capacitor bank capacity of fixed speed wind generator is reduced by certain percentages when a STATCOM is integrated at a wind farm terminal. As wind speed is always fluctuating, the terminal voltage of a fixed speed wind generator also fluctuates randomly, which has an adverse effect on the rest of the power system. It is reported that the STATCOM with a reduced capacitor bank can decrease the voltage fluctuations of the multimachine power system as well as wind generator terminals. Moreover, it is shown that a STATCOM can also enhance the transient stability of induction and synchronous generators when a network disturbance occurs in the power system. Since shaft system modeling of a wind turbine has a significant effect on the transient stability analysis of WTGS, a two-mass shaft model is adopted in this study. Both of the symmetrical and the unsymmetrical faults are analyzed in light of the real wind farm grid code. The transient performance of a STATCOM on the network is evaluated by the transient stability index based on the total kinetic energy of generators. For dynamic performance evaluation, real wind speed data are used in the simulation. Finally, it is concluded that the STATCOM can enhance both dynamic and transient stability of wind farms connected with a multimachine power system.
Integration of space vector pulse width modulation controlled STATCOM with wind farm connected to multimachine power system
Muyeen, S. M. (author) / Hasanien, Hany. M. (author) / Takahashi, Rion (author) / Murata, Toshiaki (author) / Tamura, Junji (author)
Journal of Renewable and Sustainable Energy ; 1 ; 013103-
2009-01-01
15 pages
Article (Journal)
Electronic Resource
English
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