Impact of Electromagnetic Interference Filter Performance in a System without and with Grounding for Supporting the Nanogrid Road Lighting System

2021 IEEE/IAS 57th Industrial and Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2021-04-27 DOI:10.1109/ICPS51807.2021.9416591

C. Jettanasen, S. Bunjongjit, A. Ngaopitakkul

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Abstract

This study focuses on the comparison of conducted electromagnetic interference (EMI) mitigation for a nanogrid road lighting system, using a passive EMI filter between ungrounded and grounded systems. An inverter was used as the equipment under test in the experiment. The inverter is a power conversion device that receives power from the source and supplies power to the AC electrical load of an LED luminaire. There are two points where the self-generated noises propagate to other nearby devices/equipment. For this reason, this study shows the EMI spectrum from both the DC input and AC output of the inverter. The results of both sides were additionally compared between the two case studies: ungrounded and grounded systems. The real EMI testing results were also compared with the EMI/electromagnetic compatibility standard. The results confirm the effectiveness and benefits of system grounding, integrated with the proposed passive EMI filter.

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支持纳米网格道路照明系统的无接地和接地系统中电磁干扰滤波性能的影响

本研究的重点是比较纳米网格道路照明系统的传导电磁干扰(EMI)缓解，在不接地和接地系统之间使用无源EMI滤波器。实验中使用逆变器作为待测设备。逆变器是一种功率转换装置，它从电源接收功率，向LED灯具的交流电负载供电。有两个点，自产生的噪音传播到其他附近的设备/设备。因此，本研究显示了逆变器直流输入和交流输出的电磁干扰频谱。双方的结果在两个案例研究之间进行了额外的比较:不接地和接地系统。并将实际EMI测试结果与EMI/电磁兼容标准进行了比较。结果证实了系统接地与所提出的无源电磁干扰滤波器相结合的有效性和优越性。

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2021 IEEE/IAS 57th Industrial and Commercial Power Systems Technical Conference (I&CPS)

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