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链式电池储能系统的荷电状态复合均衡控制策略
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风力发电研究中心, 上海交通大学电子信息与电气工程学院, 上海市 200240

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基金项目:

国家自然科学基金资助项目(51677117);国家电网上海公司委托研究项目(18H100000203)


Compound Balancing Control Strategy of SOC for Battery Energy Storage System Based on Cascaded H-bridge Converter
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Wind Power Research Center, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

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    摘要:

    针对链式电池储能系统相间荷电状态(SOC)不均衡问题,在详细分析链式储能系统功率模型的基础上,提出了一种结合零序电压和负序电压注入的新型复合SOC均衡控制策略。此控制策略兼顾了储能装置的输出性能、相间SOC均衡能力和电能质量,均衡过程能够实现平滑过渡,对系统无扰动。实验样机的运行结果证明了所提控制策略的正确性和有效性。

    Abstract:

    A novel compound balancing control strategy of state of charge(SOC)combining injection of zero sequence voltage and negative sequence voltage is proposed to address the issue of SOC unbalance between phases in battery energy storage system based on cascaded H-bridge converter, which is on the basis of detailed analysis of the power model of the system. The output performance of the device, interphase SOC balancing capability and power quality are all taken into account in this strategy. The process of SOC balancing can achieve smooth transition and has no disturbance to the system. The operation results of experimental prototype verify the validity and effectiveness of the proposed control strategy.

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引用本文

刘畅,蔡旭,陈强.链式电池储能系统的荷电状态复合均衡控制策略[J].电力系统自动化,2019,43(10):68-77. DOI:10.7500/AEPS20180917002.
LIU Chang, CAI Xu,CHEN Qiang.Compound Balancing Control Strategy of SOC for Battery Energy Storage System Based on Cascaded H-bridge Converter[J].Automation of Electric Power Systems,2019,43(10):68-77. DOI:10.7500/AEPS20180917002.

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  • 收稿日期:2018-09-17
  • 最后修改日期:2019-03-12
  • 录用日期:2018-12-26
  • 在线发布日期: 2019-03-14
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