摘要
配电系统中的电能质量问题一般与电压暂降有关,针对飞轮储能装置具有效率高、功率大等特性,提出一种基于飞轮储能系统的动态电压恢复器(DVR)解决配电网电压暂降问题,建立含飞轮储能单元并联型DVR模型,重点分析并联型飞轮储能系统的工作模式及相对应的充放电控制策略。配电网中DVR模型主电路采用混合级联H桥拓扑结构,在补偿控制策略方面,提出一种优化补偿控制策略,该方法可以减少所需注入DVR的有功功率和延长系统的补偿时间。通过仿真分析与实验验证,表明了所提模型以及相关补偿控制方法可行性和有效性。
Most power quality problems in distribution systems are related to voltage sags.For the flywheel energy storage device with high efficiency and high power characteristics,a flywheel energy storage system for dynamic voltage restorer（DVR）based on solving distribution network voltage sags were built with flywheel energy units in parallel type model of the DVR,in order to focuse analysis of parallel type flywheel storage system working mode and corresponding to the charge and discharge control strategy.Distribution network model of the DVR main circuit adopts hybrid cascaded H-bridge topology,and puts forward a optimal compensation control strategy in the compensation control strategy.This method can reduce the DVR injection active power and extend the system to compensate the time.Through the simulation analysis and experimental verification,the feasibility and effectiveness of the proposed model and the related compensation control method are demonstrated.
出处
《电子器件》
CAS
北大核心
2017年第2期439-445,共7页
Chinese Journal of Electron Devices
基金
江苏省工业支撑计划项目(BE2014876)
关键词
配电网
动态电压恢复器
飞轮储能
充放电控制
优化补偿控制
distribution network
dynamic voltage restorer
flywheel energy storage
charge discharge control
optimal compensation control
