Inductance Calculation and New Modeling of a Synchronous Reluctance Motor Using Flux Linkages

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  • シンクロナスリラクタンスモータの磁束鎖交数を用いたインダクタンス算定法とモデル化の提案
  • シンクロナス リラクタンス モータ ノ ジソク サコウスウ オ モチイタ インダクタンス サンテイホウ ト モデルカ ノ テイアン

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New modeling of a synchronous reluctance motor SynRM which has non-linear magnetic characteristics is proposed. And a control method of the SynRM using the new model is developed. The new model is based on the inductance data table or the flux linkage data table which is calculated with the flux linkages of the SynRM at each current (id, iq). Detailed calculation method of the inductances is described. The calculated torque TA with the inductance data table is compared with the torque Tfem which is calculated by FEM and the difference is less than 5% at the rated torque. Therefore the accuracy of the new model is certified. And the same method is applicable to an interior permanent magnet synchronous motor IPMSM. The high performance motor control is realized. The exact current commands (id, iq), the exact voltage feed-forward commands (FFd, FFq) and the adaptive current loop gain (Gd, Gq) are obtained using the FEM data of the motor.

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