SS4B型电力机车直流电源柜均流控制策略的研究  

Research of Current Sharing Strategy on DC-Power Cabinet for SS4B-Electric Locomotive

作　　者：吴昊 赵海生 刘康宁 WU Hao;ZHAO Hai-sheng;LIU Kang-ning(China Energy Railway Equipment Company Limited Cangzhou Locomotive&Vehicle Maintenance Branch,Cangzhou Hebei 061113,China)

机构地区：[1]国能铁路装备有限责任公司沧州机车车辆维修分公司,河北沧州061113

出　　处：《机电产品开发与创新》2025年第2期101-104,共4页Development & Innovation of Machinery & Electrical Products

摘　　要：针对现有的SS4B电力机车直流电源柜在实际运用中存在模块发热量大、转换效率低、单一器件故障后机车电源柜无法正常工作等问题,利用自动均流控制技术,通过多模块电源并联工作的方式扩大系统电源容量策略,设计一套结构及控制信号接口与原SS4B电力机车兼容的110V电源柜。文章详细介绍了热应力自动均流算法的工作原理,PWM控制信号的设计原理,卡尔曼滤波算法的原理及数学建模与设计,给出了卡尔曼滤波算法的仿真结果与电源柜输出电流测试结果,实验结果验证了均流控制策略的合理性与可行性。In view of the problems in the existing SS4B-electric locomotive DC-Power cabinet,such as low conversion efficiency of module heat,and the locomotive power cabinet can’t function normally after a single device failure,We design a set of 110V power supply cabinet with structure and control signal interface compatible with the original SS4B-electric locomotive,By using the automatic current sharing control technology to expand the system power capacity strategy by the parallel operation of multi-module power supply;This paper introduces the working principle of automatic current equalization algorithm for thermal stress,the design principle of the PWM control signal,principle and mathematic modeling and design of the Kalman filter algorithm.The simulation results of Kalman filteralgorithm and the output current test results of power cabinet are presented,The experimental results demonstrate the rationality and feasibility of the Current Sharing control strategy,Forclocomotive DC-power supply cabinet.

关 键 词：SS4B型电力机车 自动均流控制技术 PWM控制 卡尔曼滤波算法 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]