静止无功发生器控制算法优化设计

Optimization Design of Static Var Generator Control Algorithm

中文关键词:  解耦  2ω振荡电流  电流环  静止无功发生器

英文关键词:decouple  2ω current oscillations  current loop  static var generator

中文摘要:

      针对静止无功发生器的单解耦电流环控制器中引入陷波器或滤波器实现对2ω电流振荡的抑制,但陷波器或滤波器的使用却增加了电流环控制器的延时时间，导致控制信号误差增大的问题，提出一种基于双解耦的电流环控制策略，并与带滤波器或陷波器的单解耦电流环控制策略进行比较、分析。实验结果证明，与带滤波器或陷波器的单解耦电流环控制策略相比，所提出控制策略不仅能够更加有效地降低或消除正和负序电流环中的2ω振荡电流，而且控制信号的延时时间大大减小。由此可见，该控制策略能够实现优化控制系统的目的。

英文摘要:

      For notch filter or filter introduced into single decoupling current loop controller of the static var generator realizing the inhibition of 2ω current oscillations,but the use of notch filter or filter has increased the delay time of the current controller,which leads to a control signal error increases,a current control strategy based on double decoupling is proposed,and compared and analyzed with the single decoupled current control strategy with a filter or notch filter.Experimental results show that compared with the single decoupling current control strategy with a filter or notch filter,the proposed control strategy is able to reduce or eliminate the 2ω oscillation in the positive and negative sequence current loop more effectively,and the delay time is greatly reduced.Thus,the control strategy can achieve the purpose of optimizing the control systems.