三电平双PWM变频器主电路设计及实现  

Design and Implemetation of Main Circuit for a Three-level Dual-PWM Inverter

作　　者：沈凤龙[1,2] 满永奎 王建辉[1] 李坤[1] 

机构地区：[1]东北大学,信息科学与工程学院,辽宁沈阳110004 [2]辽东学院,机电学院,辽宁丹东118003

出　　处：《电力电子技术》2016年第1期22-24,共3页Power Electronics

基　　金：国家自然科学基金(60474040);辽东学院校级项目(2015JC005)~~

摘　　要：针对矿井提升机三电平变频调速系统的性能要求,提出一种三电平双脉宽调制(PWM)变频器主电路参数的设计方法。以满足变频器动、静态性能指标为原则,给出进线电感和直流侧电容的上下限值计算公式,并分析总结了各参数与调制方式、功率因数及运行状态之间的关系,依据这些条件设计了主电路。仿真和实验结果表明该系统具有良好的动静态特性,验证了主电路参数设计方法的有效性和可行性。The main circuit parameters of a three-level dual pulse width modulation（PWM）inverter are designed according to the performance requirement of three-level frequency-variable speed regulation system of mine hoist.With the perfect dynamic state and steady-state performance index as the purpose of the control system,the calculation formula of the maximum and minimum valuable about incoming inductor and DC-link capacitor are derived.Also,the relationship between the parameters and modulation method,power factor and running state are analyzed.The main circuit is designed based on these principles.The dynamic-state and steady-state performances are shown by the simulation and experiment,further,effectiveness and feasibility of the main circuit parameters design method are verified.

关 键 词：变频器 双脉宽调制 变频调速系统 

分 类 号：TN773[电子电信—电路与系统]