基于七电平有源中点钳位型双PWM变流器的同步电机矢量控制系统  

Vector Control System of Synchronous Motors Based on Seven-Level Active Neutral-Point-Clamped Dual PWM Converter

作　　者：绳伟辉 葛琼璇 Sheng Weihui;Ge Qiongxuan(University of Chinese Academy of Sciences Beijing 100049 China;Institute of Electrical Engineering Chinese Academy of Sciences Beijing 100190 China)

机构地区：[1]中国科学院大学,北京100049 [2]中国科学院电工研究所,北京100190

出　　处：《电工技术学报》2018年第23期5470-5483,共14页Transactions of China Electrotechnical Society

基　　金：国家重点研发计划资助项目(2016YFB1200602-20)

摘　　要：有源中点钳位型(ANPC)多电平变流器是一种新型的变流器。该文首先介绍七电平有源中点钳位型(ANPC-7L)双PWM变流器同步电机矢量控制系统的结构及变流器控制问题;然后研究系统的预充电问题,提出一种分段同步的预充电控制策略;并对ANPC-7L变流器在不平衡电网下的PWM整流控制策略及同步电机矢量控制策略进行研究。在一台380 V/5 kW的ANPC-7L双PWM变流器样机上取得的实验结果表明该文所提算法是有效的。Active neutral-point-clamped(ANPC)multilevel converter is a newly emerging converter.This paper introduced the structure of seven-level ANPC(ANPC-7L)dual PWM synchronous motor vector control system and the control strategy of ANPC-7L converter first,and then studied the problem of system pre-charging,proposed a step by step synchronized pre-charging strategy,after that this paper studied the PWM rectifier control strategy under unbalanced grid and the control strategy of synchronous motor vector control system.The feasibility of the proposed algorithms are verified by experimental results from a 380 V/5 kW ANPC-7L dual PWM converter.

关 键 词：七电平有源中点钳位型变流器 双PWM 分段同步预充电 PWM整流 同步电机 矢量控制系统 

分 类 号：TM464[电气工程—电器]