摘要
分布式电源出力的间歇性、随机性以及电动汽车充放电时空分布的不确定性,使有源配电网面临严峻的功率波动问题。储能系统是平抑有源配电网功率波动的有效技术手段。分析了有源配电网的内涵及功率波动问题起源,介绍了适用于平抑功率波动的多类型储能技术特性,阐述了储能系统平抑有源配电网功率波动的技术现状,包括储能系统功率和容量配置、优化控制以及作为移动式储能装置的电动汽车调度与控制。分析表明,通过储能系统的类型选择、合理配置与优化控制,实现了有源配电网功率波动的平抑。最后在储能系统的配置方法与经济性分析、控制方法与谐波分析方面进行了展望。
Active distribution networks often face power fluctuation due to intermittent and stochastic characteristics of distributed generations（DGs）,as well as uncertainties associated with the spatial and temporal distributions of charge and discharge of electric vehicles（EVs）.Energy storage systems（ESS） provide an effective mean to mitigate the power fluctuation in such distribution networks.This paper analyzes the connotation of active distribution networks and the origin of the power fluctuation,and reviews the status of ESS for mitigating the power fluctuation.This includes optimal configuration and control of ESS,and dispatch and control strategy of electric vehicles.The results indicate that the power fluctuation could be successfully mitigated through selection,optimal configuration,and effective control of ESS.
出处
《储能科学与技术》
CAS
CSCD
2017年第6期1188-1195,共8页
Energy Storage Science and Technology
基金
国家自然科学基金项目(51361135704)
国家电网公司科技项目(52039916000H)
关键词
有源配电网
功率波动
储能系统
平抑波动
active distribution networks
power fluctuation
energy storage system
fluctuation mitigation
