Maximum Torque per Ampere Control Using Hill-Climbing Method Based on V/f Control for Interior Permanent Magnet Synchronous Motor

Toi Takato, Kato Masakazu, Itoh Jun-ichi

doi:10.1541/ieejias.137.654

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Other Title

埋込磁石同期電動機のV/f制御に基づく山登り法によるパラメータを用いない最大トルク/電流制御
ウメコミジシャクドウキデンドウキノ V/f セイギョニモトズクヤマノボリホウニヨルパラメータオモチイナイサイダイトルク/デンリュウセイギョ

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<p>This paper proposes a novel V/f control method for interior permanent magnet synchronous motors (IPMSMs) in order to achieve maximum torque per ampere (MTPA) control without motor parameters such as d-q axis inductance and flux linkage of a permanent magnet. V/f control does not require either information of rotor position or the motor parameters in order to construct the control system. However, the conventional MTPA control method requires the motor parameters because the control determines the compensation voltage depending on reactive power. On the other hand, in the proposed MTPA control method, a hill-climbing method is utilized. The proposed MTPA control method calculates the compensation voltage depending on the output current in order to track the MTPA operation point without the motor parameters. The validity of the proposed method is confirmed by the experimental results using a 3.7-kW IPMSM. The experimental results indicate that the magnitude of the phase current decreased by 61% at the rated speed. Furthermore, the proposed MTPA control method is effective regardless of the magnitude of the load torque.</p>

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IEEJ Transactions on Industry Applications

IEEJ Transactions on Industry Applications 137 (8), 654-662, 2017

The Institute of Electrical Engineers of Japan

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