新型注入式混合有源滤波器直流侧电压研究

以新型谐振注入式混合有源滤波器为例,分析了系统中直流侧电压波动的原因,并从稳态和动态两个方面探讨了直流侧电压波动对系统补偿性能的影响.在此基础上,提出了从滤波器结构选择、参数设计及模糊-PI控制器运用三个方面来保证直流侧电压的稳定从而提高系统整体性能的方法,给出了采用模糊-PI控制器结合电流跟踪控制算法获得系统参考信号的实现方法,实验结果证明了所提方法的有效性.

Study of DC-Side Voltage of New Injection Type Hybrid Active Power Filter

A new resonance injection type hybrid active power filter is taken as example to analyze the causes of voltage ripple in DC-side and discuss the steady and dynamic effects for compensation characteristic due to voltage ripple in the paper. Based on the above analysis, three methods are put forward to control the voltage's stability such as the framework selection of total system, the parameters designing and the use of fuzzy-PI controller. The method of combining the fuzzy-PI controller with current control method to obtain the reference signal of total system is given particularly. Experiment results show the validity of the method.