磁気エネルギーに基づく誘導電動機の線形モデルの導出及びPWMインバータ駆動による制御 [in Japanese] Derivation of Linearized Model of Induction Motor on The Basis of Magnetic Energy and Control by PWM Inverter Drive [in Japanese]
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Induction motor is expressed as a nonlinear system on a synchronously rotating reference frame. In applying linear control theory, we have usually derived a linear approximated model with a specific operating point. However, the model obtained by this method is not much accurate.<br>In this paper, we derive a linearized model for induction motor from a magnetic energy point of view. In this linearized model, the torque and the stored energies in the rotor field are choosen as state variables, and these magnetic energies are decoupled. This suggests that torque-producing component current and flux-producing conponent current become decoupled. Availability of a control system used the linearized model is illustrated by simulation and experiment results.
- IEEJ Transactions on Sensors and Micromachines
IEEJ Transactions on Sensors and Micromachines 117(4), 470-478, 1997-04
The Institute of Electrical Engineers of Japan