Circulating power test setup for a PWM rectifier motor drive

Hedayati, Mohammad H and John, Vinod (2012) Circulating power test setup for a PWM rectifier motor drive. In: 2012 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 16-19 Dec. 2012, Bengaluru, Karnataka, India.

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Abstract

Power converters burn-in test consumes large amount of energy, which increases the cost of testing, and certification, in medium and high power application. A simple test configuration to test a PWM rectifier induction motor drive, using a Doubly Fed Induction Machine (DFIM) to circulate power back to the grid for burn-in test is presented. The test configuration makes use of only one power electronic converter, which is the converter to be tested. The test method ensures soft synchronization of DFIM and Squirrel Cage Induction Machine (SCIM). A simple volt per hertz control of the drive is sufficient for conducting the test. To synchronize the DFIM with SCIM, the rotor terminal voltage of DFIM is measured and used as an indication of speed mismatch between DFIM and SCIM. The synchronization is done when the DFIM rotor voltage is at its minimum. Analysis of the DFIM characteristics confirms that such a test can be effectively performed with smooth start up and loading of the test setup. After synchronization is obtained, the speed command to SCIM is changed in order to load the setup in motoring or regenerative mode of operation. The experimental results are presented that validates the proposed test method.

Item Type:	Conference Proceedings
Publisher:	IEEE
Additional Information:	Copyright of this article belongs to IEEE.
Keywords:	Doubly Fed Induction Machine (DFIM); PWM Rectifier; Squirrel Cage Induction Machine (SCIM); Burn-in Test; Circulating Power
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	04 May 2013 06:12
Last Modified:	04 May 2013 06:12
URI:	http://eprints.iisc.ac.in/id/eprint/46420

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