Hopf bifurcation analysis on dynamic voltage stability of wind power systems with SVC

Mechatronics and Automation(2014)

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摘要
Hopf bifurcation frequently leads to periodic oscillations and even instability in nonlinear power systems. For Hopf bifurcation at equilibrium point in wind power systems, From the view of the structural stability, the static var compensator control effect on the Hopf bifurcation is analyzed, By tracking Hopf bifurcation point and two-parameter Hopf bifurcation boundary, The influence of the reactive power parameters of wind farms and the static var compensator parameters on dynamic voltage stability is analyzed. The study shows that static var compensator improves bus voltage stability and strengthens the power system equilibrium point stability by adjusting the local system's structural parameters, which can delay the Hopf bifurcation and improve the dynamic voltage stability of the nonlinear power system, this result is available for reference to voltage stability control of wind power systems.
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关键词
bifurcation,nonlinear control systems,power generation control,power system stability,reactive power,static VAr compensators,voltage control,wind power plants,Hopf bifurcation point tracking,SVC,bus voltage stability,dynamic voltage stability,equilibrium point,local system structural parameters,nonlinear systems,periodic oscillations,power system equilibrium point stability,reactive power parameters,static var compensator control,structural stability,two-parameter Hopf bifurcation boundary,voltage control,wind farms,wind power systems,Hopf bifurcation,dynamic voltage stability,static var compensator,wind power systems
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