基于Matlab的功率因數校正電路的仿真分析

摘要：根據功率因數校正的原理和特點，建立了一種基于Matlab的功率因數校正電路的仿真模型，詳細介紹了模型的建立過程并給出了具體的算法，最后對一種三相無源功率因數校正電路進行了參數的優化和仿真，并對建立的模型作了驗證。仿真結果表明，運用Matlab中的SimPowerSystems模塊對復雜的電路進行仿真分析和研究，不失為一種準確、直觀有效的方法。 敘詞：功率因數；模型；仿真 Abstract： Based on the principle and characteristic of PFC, a simulator model is built based on Matlab about PFC. The process of the model-building is introduced in detail and the arithmetic is given. Finally, a three-phase passive PFC circuit is simulated and its parameters are optimized, the model is validated. Meanwhile, the simulation result shows that the SimPowerSystems model of Matlab is an accurate, intuitionistic and effective method on simulation analysis and research of complicated circuit. Keyword：power-factor; model; simulation