变压器群合闸涌流阻尼抑制方案的研究  

Study on transformer group inrush current damping suppression strategy

作　　者：李鑫[1] 周福林[1] 李群湛[1] 

机构地区：[1]西南交通大学电气工程学院,四川成都610031

出　　处：《电源技术》2013年第5期828-831,共4页Chinese Journal of Power Sources

基　　金："863"课题(2009AA110303-14)

摘　　要：为了达到抑制变压器群合闸涌流的目的,基于对变压器群重合闸涌流产生特点的分析,提出了一种适用于变压器群合闸涌流的阻尼抑制方案。通过分析加装阻尼抑制装置前后变压器内部磁链的变化情况,介绍了阻尼抑制方案对变压器群合闸涌流的作用机理,并研究了抑制装置最佳阻尼参数的选择方法。采用仿真手段对变压器群重合闸工程范例-高速动车组过分相重合闸过程进行了研究,对比了加装阻尼抑制装置前后高速动车组过分相重合闸的涌流情况。仿真结果表明:该方案可以有效抑制变压器群合闸涌流,减小合闸相位角对变压器群合闸涌流的影响,适用于工程推广。Based on the character of transformer group switching inrush current, a damping suppression strategy was proposed in order to restrain transformer group switching inrush current. The working principle of the strategy was introduced by analyzing the transform flux with or without the damping suppression device, and then the method of calculating optimal damp parameter was investigated. The transformer group switching engineering example-the process of the high-speed EMU passing neutral section was simulated, the inrush current peak value of EMU passing neutral section was compared with or without the suppression device. The result shows that the strategy is efficient for restraining transformer group switching inrush current and reducing the impact of switching phase angle to transformer group Jnrush current, suitable for project promotion.

关 键 词：变压器群 合闸涌流 磁链 阻尼方案 动车组 

分 类 号：TM42[电气工程—电器]