| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the following problem: Increasing an electric current running through a motor generator 10 degrades the controllability of model prediction control. <P>SOLUTION: A prediction section 33 calculates prediction currents ide, iqe corresponding to each of switching modes temporarily set by a mode setting section 31. A mode determination section 34 determines a small deviation between prediction currents ide, iqe and command currents id*, iq* as a final switching mode. An operation section 28 makes a switching mode of an inverter INV follow the determination of the mode determination section 34. The prediction section 33 uses transition inductances Ldt, Lqt as coefficients of the time derivative of electric currents in a voltage equation used for prediction of the prediction currents ide, iqe. The transition inductances are different from stationary inductances Lds, Lqs as a coefficient of the product of electric current and electrical angular velocity ω. <P>COPYRIGHT: (C)2013,JPO&INPIT |
