Composite Energy Storage System Involving Battery and Ultracapacitor With Dynamic Energy Management in Microgrid Applications
Composite Energy Storage System Involving Battery and Ultracapacitor With Dynamic Energy Management in Microgrid Applications
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DOI：
10.1109/tpel.2010.2095040
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发表时间：
2011-03
影响因子：
6.7
通讯作者：
Haihua Zhou;T. Bhattacharya;Duong Tran;T. S. Siew;A. Khambadkone
中科院分区：
文献类型：
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作者：
Haihua Zhou;T. Bhattacharya;Duong Tran;T. S. Siew;A. Khambadkone
基于可再生能源的微电网是利用可再生能源和减少化石燃料使用的更好方式。当使用此类微电网向负载提供优质电力时，必须使用储能。微电网有两种运行模式，即并网模式和孤岛模式。在孤岛模式下，存储的主要职责是执行能量平衡。在并网模式下，目标是防止可再生能源间歇性和负荷波动传播到电网。单一类型的储能无法在可再生能源微电网中有效地执行所有这些工作。光伏（PV）等可再生能源的间歇性要求使用高能量密度的存储。同时，负载的快速波动要求储能具有高功率密度。本文提出了一种包含高能量密度蓄电池和高功率密度存储超级电容器的复合储能系统（CESS）来满足上述要求。所提出的功率转换器配置和能量管理方案可以主动在不同能量存储之间分配功率需求。结果表明了所提出方案的可行性。
Renewable-energy-based microgrids are a better way of utilizing renewable power and reduce the usage of fossil fuels. Usage of energy storage becomes mandatory when such microgrids are used to supply quality power to the loads. Microgrids have two modes of operation, namely, grid-connected and islanding modes. During islanding mode, the main responsibility of the storage is to perform energy balance. During grid-connected mode, the goal is to prevent propagation of the renewable source intermittency and load fluctuations to the grid. Energy storage of a single type cannot perform all these jobs efficiently in a renewable powered microgrid. The intermittent nature of renewable energy sources like photovoltaic (PV) demands usage of storage with high energy density. At the same time, quick fluctuation of load demands storage with high power density. This paper proposes a composite energy storage system (CESS) that contains both high energy density storage battery and high power density storage ultracapacitor to meet the aforementioned requirements. The proposed power converter configuration and the energy management scheme can actively distribute the power demand among the different energy storages. Results are presented to show the feasibility of the proposed scheme.