中国电机工程学报2016，Vol.36Issue(22)：6220-6230,11.DOI:10.13334/j.0258-8013.pcsee.152737
电网不对称时考虑相电流限制的PWM整流器协调控制策略
Coordinated Instantaneous Active Power Control for PWM Rectifier Under Grid Voltage Dips Considering the Limitation of Phase Current
姜卫东 1王永生 1黄辉 1郑再然 2汪磊1
作者信息
- 1. 合肥工业大学电气与自动化工程学院，安徽省合肥市 230009
- 2. 南京埃斯顿自动化股份有限公司，江苏省南京市 211106
- 折叠
摘要
Abstract
When the grid voltage dips, the processing power of PWM rectifier reduce due to the current ability of switch device. This paper analyzed the mathematical model of a PWM rectifier under grid voltage dips based on the instantaneous power theory. Two control strategies for the PWM rectifier under grid voltage dips were introduced, one for balanced positive sequence current control (BPSC), and the other for instantaneous active power control (IAPC). The first can suppress the fluctuation on the active power, and the latter can extend the range of processing power of PWM rectifier. A hybrid balanced positive sequence and instantaneous active power control was proposed, which can extend processing power of PWM rectifier but the fluctuation on the active power can be minimized. The analysis in this paper was carried out in the p.u. system, and some simple conclusions were drawn. Corroboration of the expected features of the proposed control strategy was carried out by means of simulations and experiments.关键词
PWM整流器/电网不对称/相电流限制/平衡正序电流控制/瞬时有功功率控制Key words
PWM rectifier/grid voltage dip/limitation of phase current/balanced positive sequence current control (BPSC)/instantaneous active power control (IAPC)分类
信息技术与安全科学引用本文复制引用
姜卫东,王永生,黄辉,郑再然,汪磊..电网不对称时考虑相电流限制的PWM整流器协调控制策略[J].中国电机工程学报,2016,36(22):6220-6230,11.
