磁気飽和による起電圧を利用した永久磁石同期モータの低速センサレス

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: 2014/08/01

タイトル(英語): Position Sensorless Drive in Low-Speed Region for Permanent Magnet Synchronous Motors Using Induced Voltage Caused by Magnetic Saturation

著者名: 岩路　善尚（(株) 日立製作所　日立研究所），青柳　滋久（(株) 日立製作所　日立研究所），高畑　良一（(株) 日立製作所　日立研究所），戸張　和明（(株) 日立製作所　日立研究所），鈴木　一平（(株) 日立カーエンジニアリング），羽野　誠己（日立オートモティブシステムズ（株））

著者名(英語): Yoshitaka Iwaji (Hitachi Research Laboratory, Hitachi, Ltd.), Shigehisa Aoyagi (Hitachi Research Laboratory, Hitachi, Ltd.), Ryoichi Takahata (Hitachi Research Laboratory, Hitachi, Ltd.), Kazuaki Tobari (Hitachi Research Laboratory, Hitachi, Ltd.), Ippei Suzuki (Hitachi Car Engineering Co., Ltd.), Masaki Hano (Hitachi Automotive Systems Ltd.)

キーワード: 永久磁石同期モータ，磁気飽和，120度通電，位置センサレス　　permanent magnet synchronous motor，magnetic saturation，block commutation drive，position sensorless

要約(英語): Conventional position sensorless control methods for a permanent magnet synchronous motor (PMSM) in a low-speed region suffer from some disadvantages such as too much electromagnetic noise, the need for rotor saliency, and so on.  On the other hand, a position sensorless method that introduces an induced voltage caused by magnetic saturation (IVMS) has already been reported(14). IVMS can be detected by an open phase of a PMSM using a block commutation drive, and it changes depending on the rotor position. The position sensor-less drive is achieved by detecting the IVMS. This method needs no rotor saliency and or harmonic injection. However, this technique has a disadvantage. Because the IVMS is a very small voltage, it is eliminated by a reversal direction electromotive force (EMF). It is difficult to achieve a reversal rotation drive in a low-speed region.  To solve this problem, we introduce a PWM pulse shift to the low-speed region. With this method, both the normal and reversal direction IVMSs can be detected and the bidirectional drive is achieved. We implemented this method by using a 16-bit microcomputer and an FPGA with a 20kHz carrier frequency. Moreover, excellent drive performance in the low-speed region was obtained in the experiments.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.134 No.8 （2014）

本誌掲載ページ: 703-711 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/134/8/134_703/_article/-char/ja/