基于单周控制的三相PWM整流器负序电压补偿型不平衡控制策略

被引:8
作者
徐友 [1 ,2 ]
郑建勇 [1 ]
梅军 [1 ]
姚磊 [1 ]
机构
[1] 东南大学电气工程学院
[2] 南京农业大学工学院
基金
国家高技术研究发展计划(863计划);
关键词
三相PWM整流; 单周控制; 电网电压不平衡; 恒有功功率控制; 电压跌落;
D O I
10.19595/j.cnki.1000-6753.tces.2012.11.025
中图分类号
TM461 [整流器];
学科分类号
080801 ;
摘要
针对三相脉宽调制(PWM)整流器在电网电压不平衡条件下的控制问题,提出一种基于单周控制的三相PWM整流器负序电压前馈补偿型不平衡控制策略。该控制策略在单周控制的基础上采用电网负序电压对三相PWM整流器电网电流反馈量进行前馈补偿,无需实时计算电网电流的正、负序分量,仅使用1个比例积分(PI)直流电压外环控制器即可实现三相PWM整流器恒有功功率控制,简化了系统控制结构。仿真和实验结果表明,该控制策略可从根本上抑制三相PWM整流器在电网电压不平衡条件下直流侧电压2次谐波和电网电流谐波,大大优化了三相PWM整流器不平衡运行性能。
引用
收藏
页码:183 / 190
页数:8
相关论文
共 16 条
[11]  
Control ofthree-phase PWM rectifier under unbalanced inputvoltage conditions without sequential componentextraction. Li Zixin,Wang Ping,Li Yaohua,et al. 14th International Power Electronicsand Motion Control Conference (EPE-PEMC) . 2010
[12]  
Design aspects of synchronous PWM rectifier-inverter systems under unbalanced input voltage conditions. LUIS M,PHOIVOS D. Z,GEZA J. IEEE Transactions on Industry Applications . 1992
[13]  
Supply-side current harmonics control of three phase PWM boost rectifiers under distorted and unbalanced supply voltage conditions. Wu Xinhui,Sanjib K Panda,Xu Jianxin. Proceedings of IEEE PEDS . 2007
[14]  
Modeling and analysis of in-stantaneous active and reactive power for PWM AC/DCconverter under generalized unbalanced network. Yongsug S,Thomas A L. IEEE Transactions on Power Delivery . 2006
[15]  
A nonlinear control ofthe instantaneous power in dq synchronous frame forPWM AC/DC converter under generalized unbalancedoperating conditions. Suh Y,Tijeras V,Lipo T A. IEEE Proceedings of 37thInstitute for Advanced Studies Annual Meeting . 2002
[16]  
Control scheme in hybrid synchronous stationary frame for PWM AC-DC con-verter under generalized unbalanced operating conditions. Yongsug S,Lipo T. A. IEEE Transactions on Industry Applicati-ons . 2006