基于可逆PWM整流器的蓄电池充放电装置设计方法研究  

Research on the Design Method of Battery Charging and Discharging Device Based on Reversible PWM Rectifier

作　　者：岳刚 杨海军 孙成慧 YUE Gang;YANG Haijun;SUN Chenghui(CRRC Qingdao Sifang Locomotive and Rolling Stock Co.,Ltd.,Qingdao 266000,China)

机构地区：[1]中车青岛四方机车车辆股份有限公司,山东青岛266000

出　　处：《电工技术》2025年第5期145-147,共3页Electric Engineering

摘　　要：由于传统蓄电池充放电装置在应用时会造成能源浪费和谐波污染等负面影响,因此提出了基于可逆PWM整流器的蓄电池充放电装置设计方法。为了使蓄电池各项指标都满足充放电要求,根据蓄电池的主电路图确定蓄电池主电路参数;依据内环电流传递函数和外环电流闭环函数并结合PI控制器对蓄电池充放电装置内外环电流进行控制;接着使用可逆PWM整流器计算输出电压值并与目标值进行对比从而进行蓄电池电压调节;最后通过实现蓄电池在直流系统与放电装置之间交替自动切换来保证蓄电池充放电状态的无缝切换。实验结果表明,该方法下的蓄电池单体电压和充放电电流均在实际值的范围内且蓄电池温度始终保持在20~25℃之间,说明该方法的应用效果佳。Due to the negative effects of energy waste and harmonic pollution caused by traditional battery charging and discharging devices,the application effect is not satisfactory.Therefore,a design method for battery charging and discharging device based on reversible PWM rectifier is proposed.In order to ensure that all indicators of the battery meet the requirements for charging and discharging,the main circuit parameters of the battery are determined based on the main circuit diagram of the battery;control the inner and outer loop currents of the battery charging and discharging device based on the inner loop current transfer function and the outer loop current closed-loop function,combined with a PI controller;then use a reversible PWM rectifier to calculate the output voltage value and compare it with the target value for battery voltage regulation;finally,seamless switching of battery charging and discharging states is ensured by implementing alternating automatic switching between the DC system and the discharge device.The experimental results show that the measured battery cell voltage and charge discharge current of this method are within the range of actual values,and the battery temperature is always maintained between 20~25 C,indicating that the application effect of this method is the best.

关 键 词：可逆PWM整流器 蓄电池 充放电装置 内外环电流 无缝切换 

分 类 号：TM911[电气工程—电力电子与电力传动]