Novel Hybrid Analytical/Numerical Conducted EMI Model of a Flyback Converter

A hybrid analytical/numerical conducted an electromagnetic interference (EMI) modeling approach, which adopts both numerical method and analytical method, is proposed in this paper. In this model, the noise source is calculated directly with the original data from oscilloscopes. The noise path at different operating status is extracted from the original converter topology and its analytical expression is then derived. Also, according to the EMI receiver detector mode, the algorithm of the EMI receiver is proposed in this paper. Peak (PK), average (AV), and quasipeak (QP) values of the EMI can then be calculated to analyze the impact of each relevant component. The analytical method is provided to carry out PK, AV, and QP simulations accurately and fast. The simulation and experimental results for common mode leakage currents validate this EMI model. Furthermore, two analysis examples are given to illustrate how this model is applied for engineers.

[1]  Dieter Gerling,et al.  Experimental characterization of conducted EMI in three-phase power electronics system using terminal model , 2014, 2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion.

[2]  Dushan Boroyevich,et al.  Generalized Terminal Modeling of Electromagnetic Interference , 2010, IEEE Transactions on Industry Applications.

[3]  Peter Russer,et al.  A novel quasi-peak-detector for time-domain EMI-measurements , 2005 .

[4]  Jawad Faiz,et al.  Conducted electromagnetic interference evaluation of forward converter with symmetric topology and passive filter , 2014 .

[5]  Hosein Farzanehfard,et al.  Classification and Comparison of EMI Mitigation Techniques in Switching Power Converters – A Review , 2011 .

[6]  Yali Zheng,et al.  Parameter extraction of conducted electromagnetic interference prediction model and optimisation design for a DC-DC converter system , 2013 .

[7]  D. Boroyevich,et al.  Analysis of EMI Terminal Modeling of Switched Power Converters , 2012, IEEE Transactions on Power Electronics.

[8]  Kye Yak See.  Network for conducted EMI diagnosis , 1999 .

[9]  Weifeng Sun,et al.  Analysis of common-mode electromagnetic interference noise in a flyback converter using a self-supply power control integrated circuit , 2015 .

[10]  Abraham Pressman,et al.  Switching Power Supply Design , 1997 .

[11]  Nadir Idir,et al.  High frequency modeling method of EMI filters , 2009, 2009 IEEE Energy Conversion Congress and Exposition.

[12]  Jian Sun,et al.  Parameterization of Three-Phase Electric Machine Models for EMI Simulation , 2014, IEEE Transactions on Power Electronics.

[13]  Zhaoming Qian,et al.  Modeling and Characterization of Parasitic Inductive Coupling Effects on Differential-Mode EMI Performance of a Boost Converter , 2011, IEEE Transactions on Electromagnetic Compatibility.

[14]  L. Premalatha,et al.  Experimental Study on Conducted EMI Mitigation in SMPS using a Novel Spread Spectrum Technique , 2013 .

[15]  Shuo Wang,et al.  DM EMI Noise Prediction for Constant On-Time, Critical Mode Power Factor Correction Converters , 2012, IEEE Transactions on Power Electronics.

[16]  S. Paramasivam,et al.  HFSS simulation, experimental investigation and optimisation of heat sink EMI , 2010 .

[17]  Johann W. Kolar,et al.  Differential Mode Input Filter Design for a Three-Phase Buck-Type PWM Rectifier Based on Modeling of the EMC Test Receiver , 2006, IEEE Transactions on Industrial Electronics.

[18]  P. Russer,et al.  A Real-Time Time-Domain EMI Measurement System for Full-Compliance Measurements According to CISPR 16-1-1 , 2008, IEEE Transactions on Electromagnetic Compatibility.

[19]  Xinbo Ruan,et al.  The Worst Conducted EMI Spectrum of Critical Conduction Mode Boost PFC Converter , 2015, IEEE Transactions on Power Electronics.

[20]  Peter Russer,et al.  A novel Digital Quasi-Peak Detector for Time-Domain Measurements , 2003, 2003 33rd European Microwave Conference, 2003.