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蓄电池DC-DC换流器充电的阻抗及稳定性研究 被引量：2

Research on Impedance and Stability of Battery DC-DC Converter Charging
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摘要 针对蓄电池充电会对直流微电网稳定性造成影响的问题进行研究。以蓄电池DC-DC换流器充电模块阻抗为研究对象,对恒流充电和恒压充电两种控制方式建立模块的阻抗模型,求出蓄电池换流器模块的输入阻抗,建立直流微电网等效模型,利用阻抗比禁止区判据进行稳定性判定,分析蓄电池内阻、负载传输功率、换流器滤波参数对系统稳定性的影响,最后用PSCAD仿真验证理论分析的正确性。 The impact of battery charging on the stability of DC microgrid is studied.Based on the impedance of the charging module of the DC-DC converter,the impedance model of the module is established for both the constant current charging and the constant voltage charging.The input impedance of the battery converter module is established and the DC microgrid is established.The stability of the battery is determined by the impedance ratio prohibited area criterion,and the influence of the battery internal resistance,the load transmission power and the converter filter parameters on the stability of the system are analyzed.Finally,the correctness of the theoretical analysis is verified by PSCAD simulation.
作者 朱晓晖 刘回 李培法
机构地区 长沙理工大学电气与信息工程学院
出处 《电力学报》 2017年第6期477-482,共6页 Journal of Electric Power
关键词 蓄电池充电 DC-DC换流器 系统稳定性 battery charging DC-DC converter system stability
分类号 TM912 [电气工程—电力电子与电力传动] TM461 [电气工程—电器]
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电力学报
2017年 第6期

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