Vacon Oy

Simo Häkli

Nicklas Södö

Oskari Leppäaho

A method and apparatus for the adaptation of a motor drive system is described. The method includes applying a small signal frequency sweep to a motor drive system wherein the motor drive system includes an inverter, an output filter (e.g. a sine filter) and a motor, acquiring frequency response data in response to said frequency sweep and setting parameters of the motor drive system depending on the acquired frequency response data.

Motor drive adaptation

A method for pulse-width modulation of a power converter () and a power converter () are presented. The method comprises determining () a modulation index, selecting (), based on the modulation index, a modulation technique from a plurality of pre-deter-mined modulation techniques, and modulating () an output () of the power converter () by utilizing the selected modulation technique.

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Nordborg, Denmark

Simo Häkli