摘要
在此研究了面向船舶岸电系统的多模块并联变流器的环流抑制技术。首先,推导了三相全桥并联变流器的平均模型。其次,分析了采用空间矢量脉宽调制(SVPWM)技术的零序环流机理并提出一种结合双电流采样和双PWM占空比更新(DSDD)的前馈控制方法,并通过仿真验证了算法的有效性。最后,搭建基于RTU-BOX控制器的实验平台完成验证。
The circulation suppression technique of multi-module parallel converter for shore power system is studied.First of all,the average model of the three-phase full-bridge parallel system is derived.Secondly,zero sequence circulating current mechanism using(SVPWM)technology is analyzed and a feedforward control method that combines dual current sampling and dual PWM duty update(DSDD)is proposed,the effectiveness of the method is verified through simulation.Finally,the experimental platform based on RTU-BOX controller is built to complete the verification.
作者
邓任任
卢峰
吾喻明
邢建旭
DENG Ren-ren;LU Feng;WU Yu-ming;XINC Jian-xu(NARI Group Corporation(State Grid Electric Power Research Institue),Nanjing 211106,China;不详)
出处
《电力电子技术》
CSCD
北大核心
2022年第10期120-124,共5页
Power Electronics
基金
国家电网有限公司科技项目(5400-202019207A-0-0-00)
关键词
变流器
岸电系统
多模块
零序环流
converter
shore power system
multi-module
zero sequence circulation
