基于间接电流控制的分时复合并网逆变器  

Indirect Current Control Method for the Dual Mode Time-sharing Grid-connected Inverter

作　　者：陈洪文[1] 周茂华 俞斌 CHEN Hong-wen;ZHOU Mao-hua;YU Bin(China Aerodynamics Research and Development Center,Mianyang 621000,China;不详)

机构地区：[1]中国空气动力研究与发展中心,四川绵阳621000 [2]四川通能电力科技有限公司,四川成都610011 [3]南京信息工程大学滨江学院,江苏无锡214105

出　　处：《电力电子技术》2021年第2期98-100,共3页Power Electronics

摘　　要：在此首先阐述了单相分时复合并网逆变器的工作原理,给出了其双极性控制的时序图,分析了该电路的闭环控制特性,然后提出了一种基于功率守恒原理的新型间接电流控制方式及其具体控制实现框图。所提出的控制方法有效克服了传统直接电网电流控制存在的闭环难以稳定的缺点。最后通过仿真及原理样机试验验证了该控制策略的有效性。The detailed operational principle of the single-phase dual mode time-sharing grid-connected inverter and the gate pulse sequences of bipolar modulation are presented.Then,the characteristic of the closed-loop control is analyzed.And a novel indirect current control strategy is proposed.Also,the detailed control block diagram is presented.This control method overcomes the disadvantage of stabilized hard in closed-loop which exists in traditional direct current control.At last the effectiveness of this control strategy is veryfied by the simulation.

关 键 词：并网逆变器 分时复合 双极性调制 间接电流控制 

分 类 号：TM464[电气工程—电器]