SVPWM策略在新型能量回馈并网系统中的应用  

Application of SVPWM algorithm in new grid-connected energy regenerative system

作　　者：贾爱民[1] 王玉芬[1] 苏祥伟[1] 

机构地区：[1]浙江大学电气工程学院,浙江杭州310027

出　　处：《机电工程》2011年第9期1136-1139,共4页Journal of Mechanical & Electrical Engineering

基　　金：浙江省科技厅公益技术研究资助项目(2009c31043)

摘　　要：针对传统电梯变频器端可再生电能的浪费问题,依据能量回馈再次利用的思想,设计了一种新型能量回馈并网系统。阐述了新型能量回馈并网系统的工作原理,在此基础上为提高逆变器直流电压利用率,拓展系统的适用范围,引入了空间矢量脉宽调制(SVPWM)策略。开展了SVPWM策略的原理及实现方法分析,并搭建了一台15 kW新型能量回馈并网系统进行实验研究。实验结果表明该系统具有较高的直流电压利用率,并网电流THD低至3.3%,对外电磁干扰较弱。系统试用于西子奥的斯电梯期间,运行结果表明其工作稳定可靠,节电效果显著。Aiming at the wasting of regenerative electric energy,which was accumulated on frequency converter of elevator,a new grid-connected energy regenerative system was designed.The working principle of the system was investigated.Further more,in order to improve the DC voltage availability and expand the applicable scope of the system,the space vector pulse width modulation（SVPWM） algorithm was adopted.After the analysis of the principle and implement method of the SVPWM algorithm,a 15 kW grid-connected energy regenerative system was built for experiment.The experimental results show that the DC voltage availability is high and the current thd is low to 3.3% with a small quantity of electromagnetic interference.During applied in the OTIS elevator,the application results show that the system is stable and reliable with remarkable energy saving effect.

关 键 词：空间矢量脉宽调制 能量回馈 逆变器 并网 

分 类 号：TM464[电气工程—电器]