广东电力2017，Vol.30Issue(2)：48-53,96,7.DOI:10.3969/j.issn.1007-290X.2017.02.008
基于风光互补微电网的复合储能控制策略
Control Strategy for Hybrid Energy Storage Based on Wind/Photovoltaic Complementary Micro-grid System
摘要
Abstract
In allusion to the problem of power fluctuation in wind/photovoltaic generation system grid-connection,this paper presents strategy for energy management and control on hybrid energy storage on the basis of considering requirements of restraining power fluctuation for energy storage performance by composing storage battery and super capacitor into hybrid energy storage system(HESS) for wind/photovoltaic complementary micro-grid system.In aspect of energy management,it is required to follow the principle of super capacitor priority and decide the working mode of hybrid energy storage by judging voltage size at the end of super capacitor.The super capacitor is used to restrain high-frequency part of fluctuated power in wind/photovoltaic generation grid-connection while the storage battery is to restrain low-frequency part so as to reduce charge and discharge times of the storage battery and extend its service life.In aspect of control strategy,bidirectional DC/ DC converter of the storage battery uses constant power control while that of the super capacitor uses constant busbar voltage control,which can ensure stability of DC bus voltage and realize bidirectional charge and discharge control for hybrid energy storage.Finally,a simulation model for wind/photovoltaic complementary micro-grid with hybrid energy storage was established by using PSCAD software.Simulation results indicate validity and correctness of the proposed strategy.关键词
微电网/风光互补/复合储能系统(HESS)/能量管理/控制策略/功率分配Key words
micro-grid/wind/photovoltaic complementary/hybrid energy storage system(HESS)/energy management/control strategy/power distribution分类
信息技术与安全科学引用本文复制引用
张惠生,赵兴勇,王凯武,荀之..基于风光互补微电网的复合储能控制策略[J].广东电力,2017,30(2):48-53,96,7.基金项目
国网山西省电力公司科技项目(05161A) （05161A）
