适应新型电力系统快速频率支撑需求的混合型储能系统动态建模及其控制策略分析  

Modelling and Control of Hybrid Energy Storage System with Fast Frequency Response in New Power System

作　　者：郑华[1] 赵志强 刘斯伟 王东淼 魏楠 王诗铭 ZHENG Hua;ZHAO Zhiqiang;LIU Siwei;WANG Dongmiao;WEI Nan;WANG Shiming(School of Electrical&Electronic Engineering,North China Electric Power University,Beijing 102206,China;Economic Research Institute of State Grid Xinjiang Co.,Ltd.,Urumqi 830063,China;State Grid Economic and Technological Research Institute Co.,Ltd.,Beijing 102209,China)

机构地区：[1]华北电力大学电气与电子工程学院,北京市102206 [2]国网新疆电力有限公司经济技术研究院,乌鲁木齐市830063 [3]国网经济技术研究院有限公司,北京市102209

出　　处：《电力建设》2022年第8期13-21,共9页Electric Power Construction

基　　金：国家重点研发计划项目(2019YFE0118400);国家电网有限公司总部管理科技项目“促进高比例新能源基地高效利用的多元储能优化配置技术研究”(5103-202036127A-0-0-00)。

摘　　要：为明确混合型储能快速频率支撑对新型电力系统动态特性的影响,寻找不同场景下混合型储能系统的最佳频率控制策略,提出一种具有通用性的混合型储能系统动态建模方法,并基于该模型设计了适用于蓄电池与飞轮储能组成的混合型储能系统的PI、H_(∞)及滑模控制策略。通过算例分析比较了不同控制策略下该混合储能系统对电网的频率支持能力。结果显示,当蓄电池采用H_(∞)控制,飞轮储能系统采用滑模控制时可实现最佳频率支撑效果。In order to study the influence of hybrid energy storage system with fast frequency response on the dynamics of the new power system, and find the best control strategies for different scenarios, a generalized dynamic model of the hybrid energy storage system is proposed. On the basis of this model, the PI, H_(∞) and sliding mode controllers for the hybrid energy storage system consisting of battery and flywheel energy storage are designed. A case study serves to compare the different control strategies of the hybrid energy system. The results show that the combination of battery with H_(∞) control and flywheel with sliding mode control has the best frequency support capability.

关 键 词：储能系统 混合型储能系统 鲁棒控制 最优控制 

分 类 号：TM910[电气工程—电力电子与电力传动]