| 引用本文: | 蒋 玮,周 赣,王晓东,杨永标.一种适用于微电网混合储能系统的功率分配策略[J].电力自动化设备,2015,35(4): |
| JIANG Wei,ＺＨＯＵ Gan,WANG Xiaodong,YANG Yongbiao.Power allocation strategy of hybrid energy storage system for microgrid[J].Electric Power Automation Equipment,2015,35(4): |
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| 摘要: |
| 混合储能系统同时具有功率型和能量型储能设备的优点，适用于微电网中平抑波动性功率。采用直流母线并联方式的超级电容器和蓄电池混合储能系统，由蓄电池储能单元稳定直流母线电压，超级电容器储能单元跟踪参考电流，从而达到功率的动态分配。在混合储能系统功率损耗模型的基础上，提出一种兼顾超级电容器荷电状态和储能系统损耗的功率分配策略。将该策略用于光伏发电系统输出功率平抑，仿真结果验证了所提控制策略的有效性。 |
| 关键词: 储能 功率分配 功率损耗 荷电状态 微电网 控制 |
| DOI： |
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| 基金项目:国家自然科学基金资助项目（51407025）；国家电网公司科技项目（电网与用户双向互动服务能力提升关键技术研究， 526408130022）；江苏省科技支撑计划（社会发展）（BE2013737） |
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| Power allocation strategy of hybrid energy storage system for microgrid |
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JIANG Wei1, ＺＨＯＵ Gan1, WANG Xiaodong2, YANG Yongbiao3
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1.Jiangsu Provincial Key Laboratory of Smart Grid Technology & Equipment，School of Electrical Engineering，Southeast University，Nanjing 210096，China;2.State Grid Changzhi Electric Power Supply Company，Changzhi 046011，China;3.NARI Technology Co.，Ltd.，Nanjing 210061，China
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| Abstract: |
| As the HESS（Hybrid Energy Storage System） has the advantages of both power-based and energy-based energy storage devices，it is suitable for microgrid to smooth the power fluctuation. An HESS with parallel super capacitor and battery is adopted. The battery unit is used to stabilize the DC bus voltage while the super capacitor unit is used to track the reference current，which realizes the dynamic power allocation. A power allocation strategy is proposed based on the power loss model of HESS，which considers the state of charge of super capacitor as well as the power loss of HESS. It is applied to a photovoltaic generation system and the simulative results prove its effectiveness. |
| Key words: energy storage power allocation power loss state of charge microgrid control |
