四象限變流器雙閉環(huán)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(chǔ)上推導(dǎo)出四象限變流器的數(shù)學(xué)模型。通過四象限變流器雙閉環(huán)直接電流控制的數(shù)學(xué)模型搭建了仿真框架，最后通過MATLAB/Simulink進(jìn)行了仿真研究，結(jié)果表明基于雙閉環(huán)直接電流控制的四象限變流器具有很好的穩(wěn)態(tài)和瞬態(tài)性能，網(wǎng)側(cè)功率因數(shù)接近于1。 敘詞：諧波污染 功率因數(shù) 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