Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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独立光伏混储系统稳定运行控制研究

来源:电体育下注网站电体育下注平台发布时间:2020-03-27 13:27 浏览次数:78
独立光伏混储系统稳定运行控制研究
 
李凡
(中国能源建设集团湖南省电力设计院有限公司,湖南 长沙 410007)
 
    摘 要:受环境影响的光伏电源输出的最大功率总是波动的,无法实现稳定运行、可靠供电。针对该问题,建立了独立光伏混储系统的结构,介绍了光伏最大功率输出控制,提出了混储系统的波动功率分配控制策略,以超级电容器的荷电状态区域为基础,对混储系统充放电运行状态进行可靠切换控制,充分发挥蓄电池和超级电容器的各自特性的优点。仿真结果表明,独立光伏混储系统在设计的策略控制下可以稳定运行,平衡供电功率,满足负荷对电能质量的需求。
    关键词:独立光伏;混合储能;稳定运行;状态切换
    中图分类号:TM615    文献标识码:A     文章编号:1007-3175(2020)03-0020-03
 
Stable Operation Control of Independent Photovoltaic System Based on Hybrid Energy Storage
 
LI Fan
(China Energy Engineering Group Hunan Electric Power Design Institute Co., Ltd, Changsha 410007, China)
 
    Abstract: The maximum power of photovoltaic power output affected by the environment is always fluctuating, so that it can’t realize the stable operation and reliable power supply.To solve this problem, this paper established a structure of independent photovoltaic system based on hybrid energy storage, introduced the maximum photovoltaic power output control and proposed the fluctuating power distribution control strategy of hybrid energy storage.Based on the state of charge of supercapacitor, the charge and discharge operation states of hybrid energy storage were reliably switching controlled, to give full play to the advantages of respective characteristics of batteries and super capacitors. Simulation results show that under the designed control of independent photovoltaic system based on hybrid energy storage can stably operate, balance supply power and meet the loads demand for power quality.
    Key words: independent photovoltaic; hybrid energy storage; stable operation; state switching
 
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