具有高低电压穿越能力的储能型变频器  

Energy Storage Frequency Converter with the Capability of High and Low Voltage Ride Through

作　　者：韩其国[1] 石文明[1] 吴跨宇[2] 黄晓明[2] HAN Qiguo;SHI Wenming;WU Kuayu;HUANG Xiaoming(Hangzhou Dianzi University,Hangzhou 310018,Zhejiang,China;State Grid Zhejiang Electric Power Research Institute,Hangzhou 310014,Zhejiang,China)

机构地区：[1]杭州电子科技大学,浙江杭州310018 [2]国网浙江省电力公司电力科学研究院,浙江杭州310014

出　　处：《电气传动》2016年第7期39-43,共5页Electric Drive

摘　　要：通过对提高国内大型火力发电厂辅机变频器的高、低电压穿越能力的研究,设计了一种在变频器直流侧加储能蓄电池和过压斩波电路,具有高低电压穿越能力的储能型变频器。分析了所提变频器的拓扑结构和工作原理,提出了启动阶段、低电压和高电压阶段的控制策略。搭建了Matlab仿真模型,获得了不同功率变频器对应所需的储能蓄电池数据。最后,通过实验装置验证了该储能型变频器及其相应控制策略的有效性,其性能能满足电网的有关技术要求。By the study on improving high and low voltage ride through capability of frequency converter in thelarge-scale thermal power plant,a new energy storage frequency converter was designed,with DC side energy storagebatteries and over-voltage chopper circuit,that having high and low voltage ride through capability. The topology andworking principle were analyzed,and the control strategy for starting,LVRT and HVRT were put forward. A Matlabsimulation model was set up,and some energy storage battery parameters corresponding to the different frequencyconverter were obtained. Finally,the actual test results verify the effectiveness of the energy storage frequencyconverter and its corresponding control strategy,and its performance meets the related technical requirements of thepower grid.

关 键 词：储能型变频器 低电压穿越 高电压穿越 IGBT开关 

分 类 号：TM46[电气工程—电器]