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