TITLE:
Design and Comparison of Controller for the Reduction of Conducted Electromagnetic Interference in an Inverter
AUTHORS:
P. Narasimman, E. Latha Mercy
KEYWORDS:
Conducted EMI, Common Mode, Differential Mode, PI Controller, Fuzzy Controller
JOURNAL NAME:
Circuits and Systems,
Vol.7 No.7,
May
30,
2016
ABSTRACT: This paper presents the design of a controller for the measurement and reduction of conducted Electro Magnetic Interference (EMI) caused in the power electronic circuits. The conducted EMI is also separating the Common Mode (CM) and Differential Mode (DM) simultaneously using Line Impedance Stabilization Network (LISN). EMI is mitigated by the fuzzy controller. By comparing common mode voltage with the standard reference value, the generated error can be minimized by using fuzzy controller. Fuzzy controller is varying the PWM signal of the power electronic switching devices for reducing the electromagnetic interference. In this paper, comparison of PI and fuzzy controller of the open loop and closed loop models are implemented using MATLAB® SIMULINK for measurement and reduction of the EMI level; and also simulation results of the PI controller and fuzzy controller analysis are presented in this paper. The fuzzy controller is provided to achieve the EMI level of the inverter within the standard limit.