Title :
Analytical modeling of semiconductor losses in three level inverter for FACTS applications
Author :
Mancilla-David, Fernando ; Venkataramanan, Giri
Author_Institution :
Univ. of Colorado Denver, Denver, CO
Abstract :
Power circuits used in prototype applications for flexible AC transmission systems (FACTS) have consisted of multiple three level or neutral point clamped power converters interfaced to the power system using transformer arrangements for improving waveform quality. This paper presents analytical modeling to determine semiconductor losses in such multi-pulse voltage source DC-AC converters used for FACTS applications. Device current and voltage waveforms during all operating conditions are used to develop behavioral loss models to determine power losses in each of the power semiconductors constituting an inverter pole. The results are used to determine the total power losses in an SSSC application. Computer simulation waveforms are used to demonstrate overall system performance.
Keywords :
DC-AC power convertors; flexible AC transmission systems; invertors; power semiconductor devices; power transformers; FACTS applications; behavioral loss models; computer simulation; computer simulation waveforms; flexible AC transmission systems; multiple three level converters; multipulse voltage source DC-AC converters; neutral point clamped power converters; power circuits; semiconductor losses; three level inverter; transformer arrangements; waveform quality; Analytical models; Application software; Computer simulation; Flexible AC transmission systems; Flexible printed circuits; Inverters; Power system analysis computing; Power system modeling; Prototypes; System performance;
Conference_Titel :
Industrial Electronics, 2008. IECON 2008. 34th Annual Conference of IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-1767-4
Electronic_ISBN :
1553-572X
DOI :
10.1109/IECON.2008.4758476
