电力系统自动化2017,Vol.41Issue(12):179-187,9.DOI:10.7500/AEPS20161008003
LC串联式脉宽调制整流器及其电流迭代控制方法
Pulse-width Modulation Rectifier with LC-series Filter and Its Current Iterative Control Method
摘要
Abstract
For the reactive power and harmonic current caused by nonlinear loads closed to pulse-width modulation (PWM) rectifiers, a PWM rectifier with LC-series filter and its current iterative learning control method are proposed.Here, PWM rectifier can not only provide loads with energy, but also compensate for reactive and harmonic current caused by the nonlinear loads.It can achieve effective integration of the rectification function and power compensation.The LC-series filter is adopted to make the capacitor bear the fundamental voltage, so that it can be directly connected to the power grid.In order to overcome inertia damping of the LC-series filter, a deadbeat control method based on the iterative learning algorithm is proposed for integration with the performance of feed-forward and feedback control to effectively improve the response speed and control accuracy of the system.The convergence condition of the algorithm is also derived.Simulation and experimental results have verified the correctness and validity of the proposed structure and method.关键词
脉宽调制整流器/三电平变换器/电感-电容(LC)串联滤波/无差拍控制/迭代学习算法Key words
pulse-width modulation (PWM) rectifier/three-level converter/LC series filter/deadbeat control/iterative learning algorithm引用本文复制引用
马伏军,易伟浪,梅成成,马伏强,罗安..LC串联式脉宽调制整流器及其电流迭代控制方法[J].电力系统自动化,2017,41(12):179-187,9.基金项目
国家自然科学基金青年基金资助项目(51607062).This work is supported by National Natural Science Foundation of China (No.51607062). (51607062)