Lookup NU author(s): Dr Bing Ji,
Dr Li Chen,
Dr Wenping Cao,
Professor Volker Pickert
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This paper presents methods for determining power loss profiles of Si-IGBT-based H-bridge inverters in motor drives. A comparison of inverter losses with commonly used PWM schemesincluding Bipolar and Unipolar PWMs is presented. Power losses were decomposed into switching and conduction losses to investigate their influence on the junction temperature of the IGBT. Junction temperature has been determined by an electro-thermal model and the dynamic power loss is determined based on the time-domain voltage, current and junction temperature using pre-calibrated look-up table.
Author(s): Ji B, Chen L, Cao W, Zhang M, Pickert V
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: 7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014)
Year of Conference: 2014
Acceptance date: 08/04/2014