航空电子车载系统中6kw三相升压功率因数校正整流器EMI滤波器的综合设计方法

A Comprehensive Design Approach to an EMI Filter for a 6-kW Three-Phase Boost Power Factor Correction Rectifier in Avionics Vehicular Systems

电磁干扰(EMI)滤波级的紧凑高效地设计已成为设计高密度功率转换器,特别是航空电子应用中最关键的挑战之一。为了满足监管标准的要求,EMI滤波器的设计需要精确地实现。文章提出了一种不同来源的CM噪声的详细数学模型,并讨论了一种有效降低CM噪声影响的概念。此外,最小化DM过滤级的重量和尺寸一直是设计关注的问题,因为DM级消耗了整个系统的很大一部分重量。提出了一种紧凑的功率密度EMI滤波器拓扑结构,以满足航空电子应用中DO-160F的传导EMI要求。设计的电磁干扰滤波器的实验验证来自传导发射的结果,从一个6千瓦的实验室样机的电磁干扰集成级和三相升压PFC变换器。

Compact and efficient design of electromagnetic interference(EMI)filter stages has become one of the most critical challenges in designing high-density power converters,especially for avionics applications.In order to meet the requirements of regulatory standards,EMI filter design needs to be accurately implemented.This paper presents a detailed mathematical model of CM noise from different sources,and discusses a concept for effectively reducing the impact of CM noise.In addition,minimizing the weight and size of the DM filter stage has always been a design concern,as the DM stage consumes a significant portion of the weight of the entire system.In this paper,a compact power density EMI filter topology is proposed to meet the conducting EMI requirements ofDO-160F in avionics applications.The experimental verification of the design of the EMI filter came from the results of conduction emission from a 6 kW laboratory prototype of the EMI integrated stage and three phase boost PFC converter.