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【実用新案登録請求の範囲】
交流機を一定トルクにてα相とβ相で励磁し駆 動するベクトル制御する系において、
負荷の種類により指定される最大トルク指令で ある励磁電流指令in[Scope of claim for utility model registration] In a vector control system in which an alternating current machine is excited and driven in α and β phases with a constant torque, an excitation current command i n which is a maximum torque command specified by the type of load.