| 摘要 |
PROBLEM TO BE SOLVED: To provide a controller of dynamo-electric machine capable of reducing a harmonic current, flowing through a motor generator, suitably.SOLUTION: A controller 30 performs the processing for selecting a pulse pattern stored in the memory of each operation signal generation units 33U-33W. A harmonic wave processing unit 31 constituting the controller 30 superposes an amplitude harmonic signal and a phase harmonic signal on the voltage amplitude "Vn+&Dgr;V" and the voltage phase &phgr; of an output voltage vector used in the selection processing of a pulse pattern. Consequently, the k-th order harmonic current varying at an angular velocity equal to k times of the electric angular velocity ω of the motor generator in a fixed system of coordinates is reduced.SELECTED DRAWING: Figure 2 |
