適応同定によるipmsmの電檆子巻線抵抗推定檆能付き位置センサレスベクトル制御

摘要

高効率・小型・軽量・広可変速範囲という特長を持つ埋込rn磁石形永久磁石同期モータ（IPMSM）は，適用範囲が年々rn拡大しており，近年では鉄道車両用途でも適用が検討されrnている。rnIPMSMのベクトル制御において，位置センサの信頼性・rn設置・コスト等の問題があり，信頼性向上・コスト低減・rnモータ出力向上を目的として，種々の位置センサレスベクrnトル制御法が提案されている。%In the position sensorless vector control of IPMSM, the high frequency signals are usually applied at low speed. However, the application of the high frequency signals will cause noise. The decrease of the noise is required in the railways usage. Therefore, the development of the method without the impression of the high frequency signals that even low speed can carry out the accurate estimation of the rotor position and the rotational speed is demanded. This paper proposes the position sensorless vector control method of IPMSM with the following feature. "Even at low speed, the influence of the stator resistance variation isn't received easily because the proposed method has the stator resistance estimation function." The success of the proposed method is demonstrated by experiments.