改善三相电压型PWM整流器动态性能的研究

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摘要针对船舶电力推进系统中三相电压型PWM整流器启动瞬间产生冲击电流、且受负载扰动影响大的问题,设计一种电压平方环作为外环、整流器启动直流侧电容电流作为无功电流的控制方法,该方法可有效抑制整流器启动冲击电流。此外,根据在负载扰动瞬间的功率关系,把补偿电流与负载电流一起作为有功电流的补偿进行前馈控制,从而提出一种新的负载电流前馈控制方法,以提高整流器的抗负载扰动能力和船舶电力推进系统运行的可靠性。仿真启动冲击电流减小了60%,实验启动冲击电流减小了40%。

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	姚绪梁
	王旭
	冯泽文

关键词 ： PWM整流, 补偿电流, 启动冲击, 前馈控制

Abstract：For the issues of large start-up inrush current and great load variation effect of three-phase voltage source PWM rectifier in ship electric propulsion system, a new method was proposed that outer voltage square loop is given and the DC-link capacitor current is taken as the reactive current reference, which can restrain the starting current effectively. Besides, according to the power relations during the moment of load disturbance, taking the compensation current and load current as the active current compensation for feed-forward control, a method of new feed-forward control of load current was proposed to improve the dynamic performance. Start-up inrush current is reduced by 60% and 40% in the simulation and the experiment, respectively

Key words： PWM rectifier, compensation current, start-up inrush, feed-forward control

出版日期: 2017-01-04

PACS:

TM461

作者简介: 姚绪梁男,1969年生,博士,教授,博士生导师,主要研究方向为电力电子与电力传动,船舶电力推进技术。E-mail: yaoxuliang@hrbeu.edu.cn;王旭男,1987年生,硕士研究生,主要研究方向为电力电子与电力传动。E-mail: wxfendou@126.com（通信作者）

引用本文:

姚绪梁, 王旭, 冯泽文. 改善三相电压型PWM整流器动态性能的研究[J]. 电工技术学报, 2016, 31(增刊): 169-175. Yao Xuliang, Wang Xu, Feng Zewen. Research on of Improvement of the Dynamic Ability for PWM Rectifier. Transactions of China Electrotechnical Society, 2016, 31(增刊): 169-175.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2016/V31/I增刊/169

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