GaN HEMT based high power density integrated inverter for a six-phase permanent magnet synchronous motor without forced convection
Conference: PCIM Europe 2019 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/07/2019 - 05/09/2019 at Nürnberg, Deutschland
Proceedings: PCIM Europe 2019
Pages: 5Language: englishTyp: PDF
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Authors:
Wu, Zongheng; Han, Peng; Chen, Cai; Kang, Yong (School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, China)
Zhang, Yi
Abstract:
A 1.9 kW high power density GaN E-HEMT based integrated six-phase motor drive system for aircraft is proposed. Considering the switching frequency relationship between the inverter loss and DC-link capacitance, an appropriate switching frequency is selected to realize an optimum design. Besides, a symmetry layout is designed to restrain the Vgs resonance and high efficiency for GaN devices paralleling. Moreover, a top-cooling half-bridge integrated module is designed, which utilizes the 80 ºC end cover as heat sink without extra air-forced cooling and liquid cooling system. The power density and reliability are increased.