摘要
提出一种能量路由器的能量协调控制方法,该方法包含3个层次：第1层,能量路由器根据当地直流母线电压进行协调控制;第2层,为保障重要负载的工作时间,依据储能电池SOC值对不同负载进行切除;第3层,为提高应对突发故障的能力,依据上层指令或并网情况对储能量进行优化控制。同时为改善光伏发电中恒压控制与MPPT之间切换易导致系统不稳定问题,提出一种自由无缝切换方法,提高系统的稳定性。为验证能量路由器能量协调控制方法正确性,在Matlab/Simulink仿真平台上搭建典型能量路由器系统,对控制方法进行系统仿真,仿真结果证明所提控制策略可行。
The paper puts forward a method of energy coordination control,the control method includes three levels：thefirst,energy routers control each controler compatibly according to local dc bus voltage;The second,in order toguarantee the working time of important load,the energy router will remove different load basis on the storage battery＇s SOC values;The third,accord to upper instructions or the situation of grid to optimize storage battery＇s SOC values,besides in order to improve the stability of system when photovoltaic power generation system switch between constantpressure voltage with MPPT,this paper put forward a method of seamless switching and improve the system＇s stability.Finally,several case studies are carried out in Matlab/Simulink and the results verify the correct of strategy.
作者
刘凯
陈才学
文军
朱厚达
廖凯
Liu Kai;Chen Caixue;Wen Jun;Zhu Houda;Liao Kai(College of lnformation Engineering, Xiangtan University, Xiangtan 411105, China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2018年第5期1388-1395,共8页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(61573298)
湖南省教育厅课题(13C904)
关键词
能源互联网
能量路由器
分层控制
恒压控制
energy internet
energy router
hierarchical power management strategy
constant voltage control
