Active-Power Control of Individual Converter Cells for a Battery Energy Storage System Based on a Multilevel Cascade PWM Converter
Active-Power Control of Individual Converter Cells for a Battery Energy Storage System Based on a Multilevel Cascade PWM Converter
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DOI：
10.1109/tpel.2010.2059045
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发表时间：
2012-03
影响因子：
6.7
通讯作者：
L. Maharjan;T. Yamagishi;Hirofumi Akagi
中科院分区：
文献类型：
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作者：
L. Maharjan;T. Yamagishi;Hirofumi Akagi
蓄电池储能系统是智能电网必不可少的使能设备，因为它有助于大量可再生能源的并网。为了满足蓄电池储能系统的实际应用，本文对基于多电平级联脉宽调制（PWM）变换器的蓄电池储能系统进行了简要的讨论。提出了单个转换器单元的有功功率控制，以使其能够在不同的功率水平下对电池单元进行充电和放电，同时产生三相平衡的线间电压。这导致即使在电池单元的功率处理能力不同时也能最大限度地利用电池能量。在200 V、10 kW、3.6 kWh的蓄电池储能系统上的实验结果验证了所提出的有功功率控制方法的有效性。
The battery energy storage system is an essential enabling device of the smart grid, because it helps grid connection of massive renewable energy resources. This paper has a brief discussion on a battery energy storage system based on a multilevel cascade pulsewidth-modulated (PWM) converter for its practical use. The active-power control of individual converter cells is presented to make it possible to charge and discharge the battery units at different power levels while producing a three-phase balanced line-to-line voltage. This results in the maximum utilization of battery energy even when the power-handling capabilities of the battery units differ. Experimental results obtained from a 200-V, 10-kW, 3.6-kWh battery energy storage system verify the effectiveness of the presented active-power control.