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Apparatus and method for heat-run test on high-power PWM converters with low energy expenditure

Prasad, Siva JS and Narayanan, G (2013) Apparatus and method for heat-run test on high-power PWM converters with low energy expenditure. In: SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 38 (3). pp. 359-375.

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Official URL: http://dx.doi.org/10.1007/s12046-013-0137-1


Before installation, a voltage source converter is usually subjected to heat-run test to verify its thermal design and performance under load. For heat-run test, the converter needs to be operated at rated voltage and rated current for a substantial length of time. Hence, such tests consume huge amount of energy in case of high-power converters. Also, the capacities of the source and loads available in the research and development (R&D) centre or the production facility could be inadequate to conduct such tests. This paper proposes a method to conduct heat-run tests on high-power, pulse width modulated (PWM) converters with low energy consumption. The experimental set-up consists of the converter under test and another converter (of similar or higher rating), both connected in parallel on the ac side and open on the dc side. Vector-control or synchronous reference frame control is employed to control the converters such that one draws certain amount of reactive power and the other supplies the same; only the system losses are drawn from the mains. The performance of the controller is validated through simulation and experiments. Experimental results, pertaining to heat-run tests on a high-power PWM converter, are presented at power levels of 25 kVA to 150 kVA.

Item Type: Journal Article
Additional Information: Copyrright of this article is belongs to Indian Academy of Sciences
Keywords: Voltage source converter; pulse width modulated converter; pulse width modulation; high-power converter; heat-run test; energy conservation
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 25 Sep 2013 11:55
Last Modified: 25 Sep 2013 11:55
URI: http://eprints.iisc.ac.in/id/eprint/47319

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