基于虚拟同步发电机的储能单元控制策略研究  

Research on Control Strategy of Energy Storage Unit Based on Virtual Synchronous Generator

作　　者：许傲然[1] 冷雪敏[1] 孙文仲 罗仲汉 XU Ao-ran;LENG Xue-min;SUN Wen-zhong;LUO Zhong-han(Shenyang Institute of Engineering,Shenyang 110136,China;不详)

机构地区：[1]沈阳工程学院,辽宁沈阳110136 [2]国网辽宁省电力有限公司,辽宁沈阳110000

出　　处：《电力电子技术》2021年第8期132-135,共4页Power Electronics

基　　金：2020年度辽宁省重点研发计划项目(2020JH2/10100036)。

摘　　要：虚拟同步发电机(VSG)并网技术能有效提升分布式电源对电网的友好性。在微电网运行过程中,储能装置的使用寿命受其充放电次数、充放电深度以及实时的荷电状态(SOC)等因素影响。为提高储能装置的使用寿命,提出一种考虑储能的VSG协调控制技术,根据SOC来确定储能装置的充放电量,避免储能装置过充和过放等情况。最后,基于Matlab/Simulink软件搭建了相应的仿真模型,并搭建基于VSG的储能单元控制策略的硬件实验,仿真和实验均验证了所提控制方案能够有效实现VSG控制与储能的协调配合。The grid connected technology of virtual synchronous generator(VSG)can effectively improve the friendliness of distributed generation to power grid.In the process of micro grid operation,the service life of energy storage device is affected by the number of charge and discharge,depth of charge and discharge,and real-time state of charge(SOC)and other factors.In order to improve the service life of energy storage device,a VSG cooperative control techno-logy considering energy storage is proposed.The charge and discharge capacity of energy storage device is determined according to SOC to avoid overcharge and over discharge of energy storage device.Finally,based on Matlab/Simulink software,the corresponding simulation model is built,and the hardware experiment of energy storage unit control strategy based on VSG is built.The simulation analysis and experimental analysis verify that the proposed control scheme can effectively achieve the coordination between VSG control and energy storage.

关 键 词：虚拟同步发电机 储能装置 荷电状态 

分 类 号：TM351[电气工程—电机]