DocumentCode :
2383894
Title :
New methods to control EMI noises generated in motor drive systems: controlling methods focusing on EMI noise paths
Author :
Mutoh, Nobuyoshi ; Ogata, Mitsukatsu ; Harashima, Fumio
Author_Institution :
Dept. of Intelligent Syst., Tokyo Metropolitan Inst. of Technol., Japan
Volume :
4
fYear :
2002
fDate :
13-18 Oct. 2002
Firstpage :
2572
Abstract :
The paper describes methods that control EMI noises generated in power converters (rectifier and inverter) by using power printed circuit techniques. Two kinds of differential and common mode noises are generated in motor drive systems. A method is proposed that controls the differential mode noises by symmetrically forming the structure of the positive and negative power transmission lines of the power converter using a four-layer printed power circuit technique. Simulations done using the method show that differential mode currents appearing between the terminals of the power converters and the smoothing capacitors can be almost completely eliminated and the common mode currents are shunted into the artificial ground plane. Another method is also proposed that controls the shunted common mode currents so as to prevent series resonance phenomena by inserting a damping impedance between the frame of the machine and the ground. Experiments verify that the common mode currents generated in the motor drive systems can be effectively reduced by the two proposed methods.
Keywords :
electromagnetic compatibility; electromagnetic interference; harmonic distortion; motor drives; power conversion harmonics; printed circuits; switching circuits; EMI noise generation; common mode noises; control methods; differential mode noises; four-layer printed power circuit technique; inverter; motor drive systems; negative power transmission lines; positive power transmission lines; power converters; power printed circuit techniques; rectifier; series resonance phenomena prevention; shunted common mode currents; smoothing capacitors; Circuit noise; Control systems; Electromagnetic interference; Inverters; Motor drives; Noise generators; Power generation; Power transmission lines; Printed circuits; Rectifiers;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Industry Applications Conference, 2002. 37th IAS Annual Meeting. Conference Record of the
Conference_Location :
Pittsburgh, PA, USA
ISSN :
0197-2618
Print_ISBN :
0-7803-7420-7
Type :
conf
DOI :
10.1109/IAS.2002.1042809
Filename :
1042809
Link To Document :
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