電気・熱連成解析技術を用いたパワー半導体素子温度のリアルタイム評価システム

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門

発行日: 2012/09/01

タイトル(英語): A Real-time Estimation System of Semiconductor Temperature Using Electro-thermal Simulation

著者名: 堀口　剛司（三菱電機（株）先端技術総合研究所），原川　雅哉（三菱電機（株）名古屋製作所），今中　晶（三菱電機（株）名古屋製作所），長野　鉄明（三菱電機（株）名古屋製作所），大井　健史（三菱電機（株）先端技術総合研究所）

著者名(英語): Takeshi Horiguchi (Advanced Technology R&D Center, Mitsubishi Electric Corp.), Masaya Harakawa (Nagoya Works, Mitsubishi Electric Corp.), Akira Imanaka (Nagoya Works, Mitsubishi Electric Corp.), Tetsuaki Nagano (Nagoya Works, Mitsubishi Electric Corp.), Takeshi Oi (Advanced Technology R&D Center, Mitsubishi Electric Corp.)

キーワード: 接合温度，リアルタイムシミュレーション，電気・熱連成解析，信頼性　　junction temperature，real-time simulation，electro-thermal simulation，reliability

要約(英語): This paper presents a real-time electro-thermal simulation system as a novel method of estimating the junction temperature of power semiconductors in real time. The proposed system consists of a real-time computer, a host computer, and an actual motor drive system consisting of a permanent magnet synchronous motor, a three-phase IGBT inverter, a controller, and an FPGA board.The authors use an FPGA board with a clock of 50 MHz to measure the output voltage of the inverter, because the sampling rate of the real-time computer (18 kHz) is not fast enough to accurately measure the output voltage of the inverter. The measured output voltage is used to reconstruct the PWM signal in the FPGA board which is then transferred to a real-time computer. The instantaneous power losses and the junction temperatures of the power semiconductors are calculated in the real-time computer in which the thermal circuit network is implemented by using the load current and the reconstructed PWM signal. The simulation results were in very good agreement with the experimental results. Junction temperatures of power semiconductors can be estimated under actual operating conditions using the proposed real-time electro-thermal simulation system.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.132 No.9 （2012）

本誌掲載ページ: 891-898 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejias/132/9/132_891/_article/-char/ja/