论文部分内容阅读
采用传统检测电网谐波电流的控制方式时,串联混合有源电力滤波器的谐波补偿性能与系统稳定性之间存在矛盾。文中在传统控制方式基础上增加了一个比例微分环节,能同时提高系统稳定性和谐波补偿性能,并更好地阻尼电网阻抗和并联无源滤波器之间可能产生的谐振。仿真和实验结果证明了所提出的方法的正确性。
When using the traditional control method to detect the harmonic current in the power grid, there is a conflict between the harmonic compensation performance of the series hybrid active power filter and the system stability. In this paper, a proportional and differential step is added to the traditional control method, which can improve the system stability and harmonic compensation performance and dampen the possible resonance between the grid impedance and the shunt passive filter. The simulation and experimental results prove the correctness of the proposed method.