鉄損を考慮した誘導モータの数学モデルとベクトル制御

概要

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With the rapid development of microelectronics, it is possible to realize an advanced control algorithm for an induction motor drive system. From the viewpoints of high accuracy torque control and high efficiency, the iron loss has attracted special interest recently. In this paper, we develop the mathematical models for induction motors taking into account the iron loss. Representative models are derived from a d-q model that has an equivalent eddy current circuit to describe the iron loss. By using this model, we propose a new vector control method to improve the torque accuracy. Since this method includes a conventional slip-frequency type vector control block, it is easy to add this algorithm to conventional system. An efficiency maximizing method of this system is also presented by changing the flux command. Simulation results verify the effectiveness of the proposed method.
長崎大学の論文