Inverter EMI modeling and simulation methodologies

• Published in: IEEE transactions on industrial electronics (1982) Vol. 53; no. 3; pp. 736 - 744
• Main Authors: Jih-Sheng Lai, Xudong Huang, Pepa, E., Shaotang Chen, Nehl, T.W.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.06.2006; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Closed-form solution; Computer simulation; Costs; Electromagnetic compatibility; Electromagnetic interference; Electromagnetic interference (EMI) modeling and simulation; Electromagnetic propagation; Exact solutions; Finite element methods; inverter EMI; Inverters; Mathematical models; Numerical prediction; Parameter extraction; Performance evaluation; Prototypes
• ISSN: 0278-0046; 1557-9948
• DOI: 10.1109/TIE.2006.874427

A numerical prediction of electromagnetic interference (EMI) allows evaluation of EMI performances at the design stage and before prototyping. It can also help reduce the post-prototype electromagnetic compatibility cost by minimizing late redesign and modifications of a drive implementation. This paper describes two simulation approaches with time- and frequency-domain simulations and verifies them with experimental results. Both time- and frequency-domain simulation approaches are found effective as long as the noise source and propagation path are properly modeled. The three-dimensional (3-D) finite-element-analysis (FEA)-based parasitic parameter extraction tool-Ansoft Spicelink has been used substantially. To gain additional degree of confidence, the results obtained from FEA are verified with closed-form solutions and actual measurements.