High-efficiency Converter Technologies for Advanced Air Conditioner

Konferenz: PCIM Asia 2017 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
27.06.2017 - 29.06.2017 in Shanghai, China

Tagungsband: PCIM Asia 2017

Seiten: 6Sprache: EnglischTyp: PDF

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Ishigaya, Akihiro; Kamiya, Naohito; Kubota, Yohei; Yoshimura, Masayuki (Toshiba Carrier Corporation, Japan)

It is important to improve the efficiency at low load operation in order to provide an energy-saving air conditioner. To improve this efficiency of operation at low load, high winding motors are used for compressors and DC voltages are boosted. However, energy loss caused by the boost circuit is an issue at maximum capacity load. We accomplished the improvement of efficiency at all operation capacity load by technologies of efficiently driving SJ-MOSFETs used in boost circuit. This paper provides the outline of these technologies and performance comparison results between the presented method applying these technologies and a general boost chopper circuit with SiC devices.