静止无功发生器的简单控制方法

摘要

针对静止无功发生器提出了一种简单的控制方法。利用 d-q 变换将三相交流系统变换到旋转的正交坐标系，利用 PI 调节器控制静止无功发生器的补偿电流，使其跟踪参考电流。控制方法无需对控制系统解耦，控制简单，只需要 d-q 变换模块和低通滤波器。控制策略鲁棒性高，对系统电压波动有较高的抑制能力。仿真结果验证了理论分析的正确性和控制系统的可行性。%This paper presented a simple control method based on voltage source static var generator(SVG).By the d-q transformation,the 3-phase AC system was transformed into a rotating orthogonal coordinates,in which the PI controller was used to adjust the injected reactive power currents by SVG to the reference reactive power current.This control method is simple that no decoupled control method is employed,and only one d-q transforming module and one low-pass filter are employed.The control method performs a strong robustness,and highly eliminating ability to the system voltage perturbation.The simulation results confirm the validity of the theoretical analysis and the feasibility of the control system.