基于PWM技术蓄电池充放电与检测系统设计  

Design of Charging-discharging and Test System for Accumulator Based on PWM Technology

作　　者：邓木生[1] 陈新喜[1] 李华柏[1] 

机构地区：[1]湖南铁道职业技术学院,湖南株洲412001

出　　处：《现代电子技术》2011年第14期207-210,共4页Modern Electronics Technique

基　　金：湖南省教育厅科学研究基金项目:基于PWM电力机车15kVA镉镍碱性蓄电池充放电及检测系统(10C023)

摘　　要：为解决传统蓄电池充放电装置功率因数低、高谐波污染等不足,针对电力机车用15 kVA蓄电池,设计了基于PWM整流逆变技术的蓄电池充放电装置与检测监控系统。装置用作充电电源时,采用电流双闭环控制系统,实现分阶段恒流模式或恒压模式充电;用作蓄电池放电试验的负载时,将能量回馈电网,通过SPWM调制可实现放电功率的灵活调控。试验及检测结果表明该装置具有能量双向流动、网侧电流正弦化、功率因数高、功率灵活调控的特点。To resolve the shortcomings of the charging and discharging device, such as low power factor and high AC har- monic, the accumulator charging-discharging device and test and monitoring system based on PWM bidirectionai inverting and commuting technology is designed according to 15 KW accumulator of electric locomotive. When the device was used as char- ging source, the double closed-loop current control system was adopted to achieve the goals of constant current or constant voltage charging by stages. When it was used as the loads of battery discharging, it was back to electric net with flexible power adjusted by SPWM modulation. The experiment and test results demonstrate that the device has performance of double- way transformation of energy, sinusoidal current waveform, high input power factor and flexible control of power.

关 键 词：脉冲宽度调制 蓄电池充放电装置 蓄电池检测系统 三相PWM整流器 

分 类 号：TN710-34[电子电信—电路与系统] TM912[电气工程—电力电子与电力传动]