基于PSCAD的有源电力滤波器建模仿真研究

Simulation Research of Shunt Active Power Filter Based on PSCAD

在对有源电力滤波器(APF)的结构和运行特性进行分析的基础上,利用电磁暂态仿真软件PSCAD对APF系统的运行过程进行了仿真,建立了系统的仿真模型,设计了基于瞬时无功功率理论的控制系统,给出了在负荷电流突变等情况下APF的动态响应曲线。仿真结果表明,APF在电网谐波抑制和无功补偿方面具有优良特性,同时也验证了本文所建模型的正确性和控制系统的可行性。

Based on analyzing the structure and running behavior of active power filter (APF), this paper uses PSCAD, which is a simulation soft for the electromagnetic transient to simulate the running process of APF, build a simulation model and design the control system based on the theory of instantaneous reactive power. The paper also proposes the dynamic waveforms of fluctuating load current condition and so on. The simulation result shows that APF has excellent behavior to restrain harmonic and compensate react...