A Passive EMI Filter for Preventing High-Frequency Leakage Current From Flowing Through the Grounded Inverter Heat Sink of an Adjustable-Speed Motor Drive System

2005 ◽  
Vol 41 (5) ◽  
pp. 1215-1223 ◽  
Author(s):  
H. Akagi ◽  
T. Doumoto
Keyword(s):  
Leakage Current ◽  
Heat Sink ◽  
High Frequency ◽  
Drive System ◽  
Motor Drive ◽  
Adjustable Speed ◽  
Emi Filter ◽  
Motor Drive System

scholarly journals Reduction EMI of BLDC Motor Drive Based on Software Analysis

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Navid Mousavi ◽  
Tohid Rahimi ◽  
Homayoun Meshgin Kelk
Keyword(s):  
Leakage Current ◽  
High Frequency ◽  
Common Ground ◽  
Motor Drive ◽  
Electronic Systems ◽  
Bldc Motor ◽  
Leakage Currents ◽  
Software Analysis ◽  
Frequency Components ◽  
Motor Drive System

In the BLDC motor-drive system, the leakage current from a motor to a ground network and existence of high-frequency components of the DC link current are the most important factors that cause conducting interference. The leakage currents of the motors, flow through common ground, will interfere with other equipment because of the high density of electrical and electronic systems in the spacecraft and aircrafts. Moreover, generally there are common DC buses in the mentioned systems, which aggravate the problem. Function of the electric motor causes appearance of the high-frequency components in the DC link current, which can interfere with other subsystems. In this paper, the analysis of electromagnetic noise and presentation of the proposed method based on the frequency spectrum of the DC link current and the leakage current from the motor to the ground network are done. The proposed method presents a new process based on the filtering method to overcome EMI. To cover the requirement analysis, the Maxwell software is used.

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