含有冲击负荷孤网中的储能应用研究  

Application of Energy Storage System in Shock Load of Isolated Power Grid

作　　者：刘纳[1] 石梦璇 黄碧月 陈文华 LIU Na;SHI Meng-xuan;HUANG Bi-yue;CHEN Wen-hua(Wuhan NARI Limited Company of State Grid Electric Power Research Institute,Wuhan Hubei 430074,China;School of Electrical&Electronic Engineering,Huazhong University of Science and Technology,Wuhan Hubei 430074,China;Guizhou Wanfeng Electric Power Co.,Ltd.,Xingyi Guizhou 562400,China)

机构地区：[1]国网电力科学研究院武汉南瑞有限责任公司,湖北武汉430074 [2]华中科技大学电气与电子工程学院,湖北武汉430074 [3]万峰电力股份有限公司,贵州兴义562400

出　　处：《计算机仿真》2021年第5期60-65,共6页Computer Simulation

基　　金：贵州省科技支撑计划项目(储能系统提升高渗透率分布式光伏发电接纳能力关键技术研究);南瑞集团自立项目(高功率钒电池电堆关键技术研究及产品开发)。

摘　　要：以贵州兴义孤立电网为例,分析了突变负荷、渐变负荷、周期性负荷等冲击负荷对储能的需求,突变负荷和周期性负荷在储能参与频率调节的情况下,系统频率波动幅度明显减小,对于渐变负荷,在功率变化范围不超过发电机额定功率情况下,发电机调速系统具有较好的调频效果,一般不需要储能动作。针对目前兴义电网情况,最大单机负荷为40MW(中联铁合金厂40MW冶金炉),需配置20MW储能辅助服务电源,可有效抑制电网频率波动,确保电网稳定运行。近期电网规划网架中,电源增大至1900WM,负荷总容量预计达1512MW(新增负荷主要为典型负荷),20MW储能,能承担10s内负荷突变252MW,可避免低频减载装置动作,控制频率波动在±0.5Hz。Taking the isolated power grid of Xingyi in Guizhou as an example, the effects of energy storage system had been analyzed on the sudden load, gradient load and periodic fast variable load. For the sudden load and the periodic fast variable load, the frequency fluctuation of the grid had been reduced in the case of energy storage. For the gradient load, the generator speed control system could be regulated at the rated power of the generator case. The largest stand-alone load of the Zhonglian ferroalloy plant was a 40 MW metallurgical furnace in the current situation of the Xingyi power grid. The grid frequency fluctuation had been inhibited by deploying a 20 MW energy storage system. When the power supply increased to 1900 WM and the total load capacity increased to 1512 MW, the frequency fluctuation had been controlled at ± 0.5 Hz in the load mutation within 10 s 252 MW by deploying a 20 MW energy storage system.

关 键 词：冲击负荷 孤立电网 储能系统 

分 类 号：TM911[电气工程—电力电子与电力传动]