Induction motor control device and control method thereof

Abstract

Abstract Translated from Japanese (57)【要約】 【目的】 誘導電動機の１次抵抗，１次自己インダクタ ンス，漏れ係数等の設定に誤差があっても，トルク不足 や過電流にならず，回転速度を常に安定した状態で制御 する。 【構成】 誘導電動機１の１次電流を検出し，１次磁束 の実際値がＩ 1d * と１次自己インダクタンスＬ 1 の積で 与えられる設定値に一致したとき零となる誤差電流を誤 差電流演算回路１５ｂにより求め，該誤差電流から誘導 電動機１の１次抵抗，１次自己インダクタンス，漏れ係 数の補正を実行し，さらに，誘導電動機１の１次磁束が その設定値と一致するために影響力のある設定誤差が優 先して補正されるような補正部制御回路１８ａを設けた ことを特徴とする。 (57) [Abstract] [Purpose] Even if there is an error in the settings of the primary resistance, primary self-inductance, leakage coefficient, etc. of the induction motor, torque shortage and overcurrent do not occur, and the rotation speed is always stable. Control. [Configuration] An error current which is zero when the primary current of the induction motor 1 is detected and when the actual value of the primary magnetic flux matches a set value given by the product of I 1d * and the primary self-inductance L 1 The calculation is performed by the arithmetic circuit 15b, the primary resistance, the primary self-inductance, and the leakage coefficient of the induction motor 1 are corrected from the error current, and further, the primary magnetic flux of the induction motor 1 coincides with its set value, which has an influence. It is characterized in that a correction unit control circuit 18a is provided so that a powerful setting error is preferentially corrected.

Inventors

• 👤 Akira Imanaka
• 👤 晶 今中

Bibliographic Details