四象限變流器雙閉環電流控制的研究

摘要：介紹了四象限變流器的工作原理，并在此基礎上推導出四象限變流器的數學模型。通過四象限變流器雙閉環直接電流控制的數學模型搭建了仿真框架，最后通過MATLAB/Simulink進行了仿真研究，結果表明基于雙閉環直接電流控制的四象限變流器具有很好的穩態和瞬態性能，網側功率因數接近于1。 敘詞：諧波污染 功率因數 直接電流控制 Abstract：The four-quadrant converter mathematical model is derived by its operation principle and working conditions and then the simulation is built according to its mathematical model. The simulation which is used by MATLAB/Simulink proved that double-loop direct current control is an effective way to achieve stable output DC voltage, suppress the harmonics effectively and achieve the net power factor close to 1. Keyword：Harmonic pollution, Power factor, Direct current control