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2010 3rd International Conference on Computer and Electrical Engineering(ICCEE 2010)

作者： SUN Ji-ping CHENG Qiang WANG Bao-bao JIA Xu-fen State Key Lab of Coal Resources and Safety Mining China University of Mining and Technology (Beijing) Department of Computer Science Nanyang Normal University

For the neutral point not grounded characteristics of underground power supply system in coal mine, this paper studied common mode equivalent circuit of underground PWM inverter, and extracted parasitic parameters of interference propagation path. The author established a common mode and differential mode model of underground inverter. Taking into account the rise time of PWM, the simulation results of conducted interference by Matlab software is compared with measurement spectrum on the AC side and motor side of converter, the difference is consistent showing that the proposed method has some validity.

关键词： Underground PWM inverter common mode conducted interference coal mine

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Design and Comparison of Controller for the Reduction of Conducted Electromagnetic Interference in an Inverter

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Circuits and Systems 2016年第7期7卷 1167-1176页

作者： P. Narasimman E. Latha Mercy Department of Electrical and Electronics Engineering Kings College of Engineering Thanjavur India Department of Electrical and Electronics Engineering Government College of Technology Coimbatore India

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.

关键词： Conducted EMI common mode Differential mode PI Controller Fuzzy Controller

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