Key Technology and Its Application of MW-Scale Converter in Battery Energy Storage System

doi:10.3969/j.issn.1000－7229.2016.08.007

Abstract

Abstract: Large-scale battery energy storage system （ESS） is the key technology of smart grid and future ESS station, which will be widely applied in renewable energy integration, power system frequency and peak load adjustment, and demand response, etc. This paper presents the topological structure and control strategy of a MW-scale ESS converter. Based on the strong support of Beijing Science & Technology Administration and Jingneng Group, this paper verifies the feasibility and correctness of the proposed technical route, from the whole processes of basic theory, simulation analysis, low voltage physical model in laboratory and MW-scale demonstration project. The practice shows that the proposed technical route for the large-scale ESS converter has laid the technological foundation for the future MW or ten MW ESS station, which has achieved the level of engineering practical application.

Key words: ESS station, battery ESS, ESS converter, isolated DC/DC, H bridge cascade

CLC Number:

TM 46

WU Junyong, MEI Dongsheng, ZHANG Jurui, HAO Liangliang, XIONG Fei, AI Hongke, MIAO Qing. Key Technology and Its Application of MW-Scale Converter in Battery Energy Storage System [J]. Electric Power Construction, 2016, 37(8): 45-.

References

［1］孙玉娇，吴俊玲，王雅婷，等. 新能源接入对西北-新疆联网通道输电能力及系统安全稳定性影响分析［J］. 电力建设, 2016, 37（6）:17-23. SUN Yujiao, WU Junling, WANG Yating,et al. Influence analysis of renewable power resources integration on transmission capability of northwest to Xinjiang power corridor and systems security and stability［J］. Electric Power Construction, 2016, 37（6）:17-23. ［2］宋璇坤，韩柳，鞠黄培，等.中国智能电网技术发展实践综述［J］. 电力建设, 2016, 37（7）:1-11. SONG XuanKun, HAN Liu, JU Huangpei,et al. A review on development practice of smart grid technology in China［J］. Electric Power Construction, 2016, 37（7）:1-11. ［3］蒋玮，胡仁杰，黄慧春. 移相控制对称半桥变换器软开关条件［J］.电工技术学报, 2011, 26（11）: 8-13. JIANG Wei, HU Renjie, HUANG Huichun. ZVS condition of symmetry half-bridge converter with phase-shifted control ［J］. Transactions of China Electrotechnical Society，2011，26（11）: 8-13. ［4］高宁，李睿，陈强，等. 双级式中频隔离型储能变流器的直流母线电压优化控制［J］. 中国电机工程学报, 2015, 35（17）: 4477-4485. GAO Ning, LI Rui, CHEN Qiang, et al. Optimized DC-link voltage control for double-stage medium frequency isolated power conversion system［J］. Proceedings of the CSEE, 2015, 35（17）: 4477-4485. ［5］田明杰, 吴俊勇, 熊飞，等. 应用于混合储能的组合级联式多端口变流器拓扑结构研究［J］. 电力系统保护与控制, 2014, 42（22）: 81-88. TIAN Mingjie, WU Junyong, XIONG Fei, et al. Research on combination of cascaded multiport converter topology in hybrid energy storage［J］. Power System Protection and Control, 2014, 42（22）: 81-88. ［6］田明杰, 吴俊勇, 郝亮亮，等 . 基于多端口DC/DC变换器的电池储能系统软启动控制策略［J］. 电网技术, 2015, 39（3）: 2465-2471. TIAN Mingjie, WU Junyong, HAO Liangliang，et al. The soft starting control strategy on the multi port DC/DC converter of battery storage system［J］. Power System Technology, 2015, 39（3）: 2465-2471. ［7］田明杰, 吴俊勇, 熊飞，等. 基于多端口DC/DC变换器的混合储能系统自适应能量控制策略［J］. 电网技术, 2015, 39（12）: 3378-3385. TIAN Mingjie, WU Junyong, XIONG Fei, et al. Adaptive energy control strategy for hybrid energy storage system based on multiport DC/DC converters［J］. Power System Technology, 2015, 39（12）: 3378-3385. ［8］苗青, 吴俊勇, 艾洪克，等. 组合级联式兆瓦级功率调节装置协调控制策略［J］. 电力自动化设备, 2014, 34（7）: 43-49. MIAO Qing, WU Junyong, AI Hongke, et al. Coordinated control of hybrid cascaded megawatt power regulation device［J］. Electric Power Automation Equipment, 2014, 34（7）: 43-49. ［9］艾洪克, 吴俊勇, 郝亮亮, 等. 级联式储能系统中电池自均衡控制策略研究［J］. 电工技术学报, 2015, 30（14）: 442-449. AI Hongke, WU Junyong, HAO Liangliang, et al. Research on battery self-balancing control strategy in cascade energy storage system［J］. Transactions of China Electrotechnical Society, 2015, 30（14）: 442-449. ［10］艾洪克，吴俊勇, 田明杰，等. 组合级联大容量储能系统两级SOC自均衡策略研究［J］. 电力系统保护与控制, 2014, 42（22）: 75-80. AI Hongke, WU Junyong, TIAN Mingjie, et al. Research on two-stage SOC self-balancing control strategy in hybrid cascade energy storage system［J］. Power System Protection And Control, 2014, 42（22）: 75-80.

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