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(2) K. Yamada, T. Noguchi, and S. Kondo:“Position Sensorless Speed Control of Salient-Pole PM Motor Including LowSpeed Range”, The Paper of Technical Meeting on Semiconductor Power Converter,IEE Japan, SPC-97-13 (1997) (in Japanese) 山田和範・野口季彦・近藤正示:「低速領域を含む突極形PMモータの位置センサレス速度制御法」,電気学会半導体電力変換研資, SPC-97-13 (1997)
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(5) M. Tada, Y. Ohtani, and H. Watanabe:“A Method of Rotor Starting Position Estimation for Salient-Pole Brushless DC Motor without Sensor”,1996 National Convention Record IEE Japan, No.1025 (1996) (in Japanese) 多田征史・大谷康隆・渡辺博巳:「突極形ブラシレスDCモータの静止時におけるセンサレス磁極位置推定の一方式」,平8電気学会全大, No.1025 (1996)