Modeling and Analysis of Digital Active EMI Filter with Time Delay

JI Jun-peng; HU Xue-li; CHEN Wen-jie; ZENG Guang; HUA Zhi-guang

doi:10.3969/j.issn.0372-2112.2015.09.017

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Modeling and Analysis of Digital Active EMI Filter with Time Delay

更新时间：2025-07-16

- Modeling and Analysis of Digital Active EMI Filter with Time Delay
- Acta Electronica Sinica Vol. 43, Issue 9, Pages: 1793-1799(2015)
- 作者机构：
  
  1. 西安理工大学电气工程系,陕西,西安,710048
  2. 西安交通大学电气工程学院,陕西,西安,710049
  3. 西安理工大学电气工程系,陕西,西安,710048
  4. 西安交通大学电气工程学院,陕西,西安,710049
- 作者简介：
- 基金信息：
  
  Key Discipline Construction Special Fund of Shaanxi Province (No.105-5X1201);National Natural Science Foundation of China (No.51277145);National Innovation and Entrepreneurship Training Program for College Students in 2014 (No.10872);Characteristic Research Project of Xi 'an University of Technology (No.2014TS010);Industrialization Training Program of Department of Education of Shaanxi Province (No.2012JC18)
- DOI：10.3969/j.issn.0372-2112.2015.09.017
  CLC： TM46
- Published：2015
- 稿件说明：
移动端阅览
JI Jun-peng, HU Xue-li, CHEN Wen-jie, et al. Modeling and Analysis of Digital Active EMI Filter with Time Delay[J]. Acta Electronica Sinica, 2015, 43(9): 1793-1799.
DOI：

JI Jun-peng, HU Xue-li, CHEN Wen-jie, et al. Modeling and Analysis of Digital Active EMI Filter with Time Delay[J]. Acta Electronica Sinica, 2015, 43(9): 1793-1799. DOI： 10.3969/j.issn.0372-2112.2015.09.017.

摘要

随着数字处理技术的进步

数据采集速度与精度的大幅提高

使得数字有源电磁干扰滤波技术DAEF(Digital Active EMI Filter)成为EMI(Electro-Magnetic Interference)滤波技术发展的新方向.由于EMI信号频率较高

所以EMI滤波控制中的延迟对滤波性能的影响不可忽视

需要深入研究.本文详细分析了数字有源EMI滤波系统中产生延迟的原因

建立了具有延迟特性的数字有源EMI滤波系统模型

仿真分析了延迟时间对EMI滤波系统滤波性能的影响.搭建了基于FPGA(Field Programmable Gate Array)的数字有源EMI控制系统平台

验证了具有延迟特性的数字有源EMI滤波系统模型的正确性

揭示了数字有源EMI滤波系统延迟环节对滤波性能的影响规律

这有助于对数字有源EMI滤波器的进一步研究和推广应用.

Abstract

With the development of the digital processing technology

and the sharp increasing of the speed and accuracy of data acquisition

the DAEF technology becomes a new direction of the EMI filter technology.As the frequency of EMI signal is high

the delay time of system has great impact on system performance and cannot be ignored

which needs more study.In this paper

the reason of the delay time existence was analyzed in the DAEF system

and with consideration of delay time the model of DAEF system was built.The impact of the delay time on the EMI filter performance was analyzed by simulation.The DAEF control system platform was built based on FPGA.The correctness of the DAEF model with delay character was verified.The influence rule of delay time on the filter performance of DAEF system was revealed.The results help to further study and widespread application of digital active EMI filter.

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