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Abstract
The effects of Electromagnetic Interference (EMI) in Inductive Power Transfer (IPT) for electric vehicle charging circuits are elaborated with Common Mode (CM) emission. Electromagnetic Compatibility (EMC) has to be sustained in the circuits such that it is prone to the effects of interferences, noises and disturbances. These issues can be addressed at the initial product development stage, with accurate identification of the parameters that influence the CM emission in the circuit. The analysis of EMI focuses on three features, namely Source of EMI, Coupling path and Receptor. In the IPT model, the primary source of the EMI is the power converter used for high-frequency supply to the inductive coils. The power converter switches and the heat sink with its Printed Circuit Board (PCB) design are predominant in power electronic circuits. This paper facilitates the reduction of EMI without including complex filters. The system is tested for the violated standard SAEJ2954. In addition, the article corroborates precognitive modeling by implementing compensation networks used in IPT applications and their effectiveness in reducing the leakage current caused by the converters and the coils. The paper insights the air gap variation of the coil with the power transfer efficiency and its influence on electromagnetic interferences. The Fast Fourier Transform (FFT) analysis used in PSIM shows leakage current and harmonic reduction with the compensation network and Pulse Width Modulation (PWM) technique. The fabrication model for the front end power supply to the IPT is tested. The electrical noise emission is estimated using predictive modeling.
Disclosure statement
No potential conflict of interest was reported by the authors.
Additional information
Notes on contributors
Kripalakshmi Thiagarajan
Kripalakshmi Thiagarajan received a Bachelor Engineering degree from Anna University, Chennai, India, 2016 and ME degree in power electronics and drives from Anna University, Chennai, India 2018. Currently, pursuing PhD degree in VIT University, Chennai, India. Working as a research associate along with pursuing research. Handled labs for BE degree students of various electrical and electronics disciplines. Research interests include inductive coupling charging, electric vehicles, optimization, and controllers. Published one paper in IEEE Conference and two Scopus indexed journals. Awarded with internal funding for project in Master's degree from SSN college of Engineering. Achieved gold medal for post-graduation degree. Email: [email protected].
Deepa Thangavelusamy
Deepa Thangavelusamy has completed her BE degree in electrical and electronics engineering from Manonmanium Sundaranar University, Tirunelveli, India, 1999, ME degree in power systems from Anna University, Chennai, India 2007 and PhD from Anna University, Chennai, India 2014. Working as an associate professor at School of Electrical Engineering, VIT, Chennai. Her research area includes control system, intelligent controllers, fuzzy logic controller, sliding mode controller, optimization techniques, power electronics and electric vehicles; she published more than 20 conference and journal papers. The patent office also published the patent granted to her.