Common mode current attenuation techniques for use with PWM drives.

The most common modulation strategy adopted for motor control in adjustable speed drives (ASDs) is pulse width modulation (PWM). In general, the output is modulated at a carrier frequency ranging from 1.0 kHz to 20.0 kHz. Experiences with PWM drives have shown that there exist two important concerns...

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Publié dans:	IEEE Transactions on power electronics 16, 2 (2001).
Auteur principal:	Swamy, M.M
Format:	Article
Langue:	English
Sujets:	1 to 20 kHz. IGBT fall time. IGBT rise time. PWM driven motors. PWM drives. Adjustable speed drives. Bearing currents. Carrier frequency. Common mode current. Common mode current attenuation. Common mode noise. Insulated gate bipolar transistors. Inverter. Modulation strategy. Motor control. Nontrivial common-mode currents. Nontrivial ground currents. Over-voltage. Premature bearing failure. Pulse width modulation. Shaft voltage.