Analysis and Precise Modeling of Digital Active EMI Filter
Ji Junpeng1, 2, Chen Wenjie1, Lu Jingjie2, Zeng Guang2, Hua Zhiguang2
1. School of Electrical Engineering Xi’an Jiaotong University Xi’an 710049 China; 2. Department of Electrical Engineering Xi’an University of Technology Xi’an 710048 China
Abstract：Digital active EMI filter (DAEF) technique is a new direction of the conductive EMI suppression technologies for switching power converter. However, given that the traditional model of DAEF system can not describe the system behavior, this paper proposed a precise system model. The model considered the passive device parasitic parameters of the sensed circuit, the injected circuit and the decoupled circuit. On the other hand, this model considered the delay time of the digital control system. The model can describe the system behavior accurately, and reflect the system performance accurately. It is verified that the precise model can predict the system performance accurately by the simulation result and the experiment result.
姬军鹏, 陈文洁, 路景杰, 曾光, 华志广. 数字有源EMI滤波器的精确建模及分析[J]. 电工技术学报, 2015, 30(增刊2): 101-106.
Ji Junpeng, Chen Wenjie, Lu Jingjie, Zeng Guang, Hua Zhiguang. Analysis and Precise Modeling of Digital Active EMI Filter. Transactions of China Electrotechnical Society, 2015, 30(增刊2): 101-106.
[1] GB/T 21419—2013 变压器电抗器、电源装置及其组合的安全电磁兼容(EMC)要求[S]. 2013. [2] Luo Fang, Wang Shuo, Wang Fei, et al. Analysis of CM volt-second influence on CM inductor saturation and design for input EMI filters in three-phase DC-fed motor drive systems[J]. IEEE Transations on Power Electronics, 2010, 25(7): 1905-1914. [3] 杨玉岗, 冯本成, 王长华, 等. 一种新型的平面无源集成EMI滤波器结构[J]. 电工技术学报, 2012, 27(8): 108-119. Yang Yugang, Feng Bencheng, Wang Changhua, et al. A novel structure of planar passive integrated EMI filter[J]. Transactions of China Electrotechnical Society, 2012, 27(8): 108-119. [4] Heldwein M L, Ertl H, Biela J, et al. Imple- mentation of a transformerless common-mode active filter for offline converter systems[J]. IEEE Transa- ctions on Industrial Electronics, 2010, 57(5): 1772-1786. [5] Wang Shuo, Maillet Y Y, Wang Fei, et al. Investigation of hybrid EMI filters for common-mode EMI suppression in a motor drive system[J]. IEEE Transa- ctions on Power Electronics, 2010, 25(4): 1034- 1045. [6] Chen Wenjie, Yang Xu, Wang Zhaoan. A novel hybrid common-mode EMI filter with active impedance multiplication[J]. IEEE Transactions on Industrial Electronics, 2011, 58(5): 1826-1834. [7] Hamza D, Qiu Mei, Jain P K. Implementation of an EMI active filter in grid-tied PV micro-inverter controller and stability verification[C]//38th Annual Conference on IEEE Industrial Electronics Society, Montreal, QC, 2012: 477-482. [8] Hamza D, Qiu Mei, Jain P K. Application and Stability analysis of a novel digital active EMI filter used in a grid-tied PV micro-inverter module[J]. IEEE Transactions on Power Electronics, 2013, 28(6): 2867-2874. [9] Hamza D, Pahlevaninezhad M, Jain P K. Imple- mentation of a novel digital active EMI technique in a DSP-Based DC-DC digital controller used in electric vehicle (EV)[J]. IEEE Transactions on Power Electronics, 2013, 28(7): 3126-3137. [10] 王凤岩, 任黎立, 许建平. 基于F2812的逆变器数字控制器的建模与设计[J]. 电工技术学报, 2009, 24(2): 94-99. Wang Fengyan, Ren Lili, Xu Jianping. Modeling and design of digital controller for inverter based on F2812[J]. Transactions of China Electrotechnical Society, 2009, 24(2): 94-99. [11] Peng Juan, Ma Hong, Tian Chen. Modeling of ADC nonlinearity by time-delay-based power series[C]// Second Asia International Conference on Modelling & Simulation, Kuala Lumpur, 2008: 1048-1053. [12] 鲁挺, 赵争鸣, 张颖超, 等. 采样延迟和误差对三电平PWM整流直接功率控制性能的影响及其抑制方法[J]. 电工技术学报, 2010, 25(3): 66-72. Lu Ting, Zhao Zhengming, Zhang Yingchao, et al. Effect of sampling delay and error on direct power control performance of three-level PWM rectifier and its restraining method[J]. Transactions of China Electrotechnical Society, 2010, 25(3): 66-72.
2015, Vol. 30 
