电力电子虚拟调相机  

Power Electronic Virtual Condenser

作　　者：刘涛 蔡旭[1] 孙国歧 魏晓宾 曹云峰[1] 张玲艳 LIU Tao;CAI Xu;SUN Guoqi;WEI Xiaobin;CAO Yunfeng;ZHANG Lingyan(Wind Power Research Center,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学风力发电研究中心,上海200240

出　　处：《电气传动》2022年第10期43-50,共8页Electric Drive

基　　金：山东省重点研发计划(2019JZZY020804)。

摘　　要：随着静止无功补偿器(SVG)代替传统的调相机,可以提供动态的无功补偿。然而相比于传统调相机,SVG缺少旋转惯量。传统的SVG研究主要集中在无功补偿和故障穿越,没有针对SVG在提高惯量上的研究。针对这一问题,提出了具有动态无功补偿和动态惯量响应能力的电力电子调相机。首先,具体设计了不同电压等级下的拓扑结构;其次,从储能出发,选择超级电容器作为储能元件,同时设计了储能配置和储能元件的参数;然后,从惯量响应和无功补偿两个方面设计控制策略;之后,对比传统的调相机,推导了能量利用率以及惯量响应的对应关系。最后,通过PSCAD/EMTDC仿真验证了理论分析的正确性。As traditional condenser is replaced by static var generator(SVG),the dynamic reactive power compensation can be provided by SVG.However,compared with traditional condenser,SVG lacks rotational inertia.Traditional research of SVG mainly focused on reactive power compensation and fault ride-through,and there is no research on improving the inertia of SVG.In response to this problem,a power electronic virtual condenser with dynamic reactive power compensation and dynamic inertia response capabilities was proposed.Firstly,the topological structure under different voltage levels was designed specifically.Secondly,starting from energy storage,super capacitors were selected as components of the energy storage,and the configuration of the energy storage and the parameters of the energy storage components were designed at the same time.Then,the control strategy was designed in two aspects from the inertia response and reactive power compensation.After that,compared with the traditional condenser,the corresponding relationship between energy utilization and inertia response was derived.Finally,the correctness of the theoretical analysis was verified by PSCAD/EMTDC simulations.

关 键 词：静止无功补偿器 惯量 调相机 频率-电压 

分 类 号：TM76[电气工程—电力系统及自动化]