| 摘要 |
PROBLEM TO BE SOLVED: To provide a power converter control device that continuously effectively suppresses noise and loss caused in an electric motor subjected to variable speed drive control.SOLUTION: A power converter control device includes a selection circuit 30 for selecting any one from first, second, ..., and nth harmonic suppression pulse pattern sections 31, 32, ..., and 3n for calculating pulse patterns for suppressing harmonic components of different orders for each other set beforehand according to a rotating speed signal ωe, on the basis of the first, second, ..., and nth harmonic suppression pulse pattern sections 31, 32, ..., and 3n and the rotating speed signal ωe, and outputting the selected pulse pattern to a gate pulse output section 7, on the basis of a modulation factor m calculated by a modulation factor operation section 2 according to a voltage command Vd* and Vq* from a voltage command section 1 and the rotating speed signal ωe calculated by a speed calculation section 10.SELECTED DRAWING: Figure 1 |
