An intelligent power module with high accuracy control system and direct liquid cooling for Hybrid system
Konferenz: PCIM Europe 2014 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
20.05.2014 - 22.05.2014 in Nürnberg, Deutschland
Tagungsband: PCIM Europe 2014
Seiten: 8Sprache: EnglischTyp: PDF
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Autoren:
Higuchi, Keiichi; Kitamura, Akio; Arai, Hirohisa; Ichimura, Takeshi; Gohara, Hiromichi; Nishiura, Akira (Fuji Electric Co., Ltd, 4-18-1, Tsukama, Matsumoto, Nagano, Japan)
Dietrich, Peter (Fuji Electric Europe GmbH., Geothering 58. 63067 Offenbach, Germany)
Inhalt:
We have developed an intelligent power module (IPM) with high accuracy control system and direct liquid cooling for HEV (Hybrid Electric Vehicle) and PHEV (Plug-in Hybrid Electric Vehicle).The IPM contributes to most efficient fuel consumption of the HEV and PHEV. An Aluminum direct liquid cooling fin structure improves thermal resistance by over 20% compared to the conventional indirect liquid cooling structure. Furthermore a new Sn-Sb solder has been developed to improve thermal cycle capability. The tensile strength and yield strength of this new solder is about 20% higher than conventional Sn-Ag-Cu solder. The highly accurate control system with CPU in the control circuit corrects the error of a temperature sensor on the IGBT chip within +-3 oC. It also controls the buck-boost converter by using a voltage sensor and the accuracy of the output voltage is controlled under +-2%. The system is communicated to the master ECU. The IPM’s maximum output power is 400kVA and it is applied in a HEV system to drive 124kW motor output.