陆海洋,王翀,任铁强,马秀达,卢宇,董云龙,邹强
LU Haiyang,WANG Chong,REN Tieqiang,MA Xiuda,LU Yu,DONG Yunlong,ZOU Qiang

• 1:南京南瑞继保电气有限公司

摘要(Abstract)：

电压源换流器直流侧直挂储能可应用于有源或者无源的电网系统中，具有削峰填谷、减少新能源的弃风、弃光等优点。针对电压源换流器直流侧直挂储能的拓扑结构，首先介绍了直流侧储能的基本工作原理，提出了极控制层定直流电压控制和定直流电流控制两种控制方式；接着考虑到这两种控制方式均采用子模块数量前馈控制，提出了直流电压开环控制；最后搭建RTDS（实时数字仿真系统）并进行了稳态、动态和控制方式切换试验。结果表明，采用该拓扑结构的直流侧储能具有良好的稳态运行及动态电压、电流响应特性，具备一定的应用与推广价值。
Direct-hanged energy storage of voltage source converters(VSCs) on the DC side can be applied to active or reactive power grids. It has the advantages of peak shaving and valley filling, reducing wind and photovoltaic power curtailment. Given the topology of DC-side direct-hanging energy storage of VSCs, the basic working principle of DC-side energy storage is introduced first. Two control methods are proposed: constant DC voltage control and constant DC control at the pole control level. Moreover, DC voltage open-loop control is proposed since both methods adopt feed-forward control of sub-module quantity. Finally, an RTDS(real-time digital simulation system) is established, and steady-state, dynamic, and control mode switching tests are carried out. The results show that the DC-side energy storage with such topology is characterized by its superior steady-state operation, dynamic voltage, and current response characteristics and has a particular application and promotion value.

关键词(KeyWords)： 直流侧储能;直流电压控制;直流电流控制;阶跃响应;控制方式切换
DC-side energy storage;DC voltage control;DC current control;step response;control mode switch

Abstract:

Keywords:

基金项目(Foundation): 国家电网公司科技项目（5200-202256078A-1-1-ZN）

作者(Author): 陆海洋,王翀,任铁强,马秀达,卢宇,董云龙,邹强
LU Haiyang,WANG Chong,REN Tieqiang,MA Xiuda,LU Yu,DONG Yunlong,ZOU Qiang

DOI: 10.19585/j.zjdl.202301005

参考文献(References)：

• [1]谢小荣，马宁嘉，刘威，等.新型电力系统中储能应用功能的综述与展望[J/OL].中国电机工程学报：1-12.[2022-05-05]. https：//doi. org/10.1334/j. 0258-8013. pcsee. 220025.DOI:10.13334/j.0258-8013.pcsee.220025.XIE Xiaorong,MA Ningjia,LIU Wei,et al.Functions of energy storage in renewable energy dominated power systems:review and prospect[J/OL]. Proceedings of the CSEE:1-12[2022-05-05]. https：//doi. org/10.1334/j. 0258-8013. pcsee. 220025. DOI:10.13334/j. 0258-8013.pcsee.220025.
• [2]张东辉，康重庆，卢洵，等.高比例新能源系统中储能配置规模论证[J].南方电网技术，2022,16(4):3-11.ZHANG Donghui,KANG Chongqing,LU Xun,et al.Demonstration on the scale of energy storage deployment in high-proportion new energy power system[J].Southern Power System Technology,2022,16(4):3-11.
• [3]唐西胜.储能在电力系统中的作用与运营模式[J].电力建设，2016,37(8):2-7.TANG Xisheng.Applications and marketing mode of energy storages in power system[J]. Electric Power Construction,2016,37(8):2-7.
• [4]李善颖，吴涛，任彬，等.基于模块化多电平变换器的储能系统综述[J].电力系统保护与控制，2015,43(16):139-146.LI Shanying,WU Tao,REN Bin,et al.Review of energy storage system based on modular multilevel converter[J].Power System Protection and Control,2015,43(16):139-146.
• [5]孙玉树，杨敏，师长立，等.储能的应用现状和发展趋势分析[J].高电压技术，2020,46(1):80-89.SUN Yushu,YANG Min,SHI Changli,et al.Analysis of Application Status and Development Trend of Energy Storage[J]. High Voltage Engineering,2020,46(1):80-89.
• [6]任大伟，侯金鸣，肖晋宇，等.能源电力清洁化转型中的储能关键技术探讨[J].高电压技术，2021,47(8):2751-2759.REN Dawei,HOU Jinming,XIAO Jinyu,et al. Exploration of Key Technologies for Energy Storage in the Cleansing Transformation of Energy and Power[J].High Voltage Engineering,2021,47(8):2751-2759.
• [7]管敏渊.虚拟同步机运行状态下并网储能系统自动能量控制[J].电力系统自动化，2022,46(23):144-150.GUAN Minyuan. Automatic energy control of gridconnected energy storage system based on virtual synchronous generator operation[J]. Automation of Electric Power Systems,2022,46(23):144-150.
• [8]郭捷，胡鹏飞，周月宾，等.具有储能功能的模块化多电平换流器的控制方法[J].现代电力，2015,32(5):73-78.GUO Jie,HU Pengfei,ZHOU Yuebin,et al.Control strategy for modular converter with energy storage ability[J].Modern Electric Power,2015,32(5):73-78.
• [9]贺悝，李勇，曹一家，等.考虑分布式储能参与的直流配电网电压柔性控制策略[J].电工技术学报，2017,32(10):101-110.HE Li,LI Yong,CAO Yijia,et al.Flexible voltage control strategy of DC distribution network considering distributed energy storage[J].Transactions of China Electrotechnical Society,2017,32(10):101-110.
• [10]刘耀，吴佳玮，赵小令，等.基于电池储能的MMC-HVDC系统的建模与仿真[J].电力工程技术，2020,39(4):48-54.LIU Yao,WU Jiawei,ZHAO Xiaoling,et al. Modeling and simulation of battery energy storage system based on MMC-HVDC[J]. Electric Power Engineering Technology,2020,39(4):48-54.
• [11]林晓冬，雷勇.SMES/BESS储能变流器在微电网中的控制策略研究[J].电网技术，2018,42(5):1458-1466.LIN Xiaodong,LEI Yong.Research on control strategy of SMES/BESS energy storage converters in microgrid[J].Power System Technology,2018,42(5):1458-1466.
• [12]张宸宇，袁晓冬，缪惠宇，等.一种虚拟同步机直流侧混合储能系统控制策略[J].电力建设，2018,39(4):113-118.ZHANG Chenyu,YUAN Xiaodong,MIAO Huiyu,et al.A control strategy for hybrid energy storage system in virtual synchronous generator DC-Side[J]. Electric Power Construction,2018,39(4):113-118.
• [13]代倩，吴俊玲，秦晓辉，等.提升局部区域新能源外送能力的储能容量优化配置方法[J].电力系统自动化，2022,46(3):67-74.DAI Qian,WU Junling,QIN Xiaohui,et al.Optimal configuration method of energy storage capacity for improving delivery ability of renewable energy in regional area[J].Automation of Electric Power Systems,2022,46(3):67-74.
• [14]李军徽，岳鹏程，李翠萍，等.提高风能利用水平的风电场群储能系统控制策略[J].电力自动化设备，2021,41(10):162-169.LI Junhui,YUE Pengcheng,LI Cuiping,et al. Control strategy of energy storage system in wind farm group to improve wind energy utilization level[J]. Electric Power Automation Equipment,2021,41(10):162-169.
• [15]徐政.全能型静止同步机-概念与潜力[EB/OL].(2021-05-05)[2022-05-05]. https：//mp. weixin. qq. com/s/eD1Jeovd24riZdGo6ahe8w.XU Zheng. Versatile static synchronous machine concept and capability[EB/OL].(2021-11-15)[2022-05-05].https：//mp.weixin.qq.com/s/eD1Jeovd24riZdGo6ahe8w.