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- W2187977228 abstract "Thispaperproposes a dead-time compensation methodwithadisturbance observer andacurrent controller forV/fcontrol. Dead-time compensation isveryimportant to improve motordrive performances inthelowspeedregion. Theproposed compensation methodiscomposed inthed-q rotational frame. Theripple ofthed-axis current caused by thedead-time issuppressed byanautocurrent regulator, the ripple oftheq-axis current according tothedead-time is suppressed bythedisturbance observer. Thecontrol ofthe d-axis current isaddedtheautocurrent regulator totheV/f control. Asaresult, themagnitude ofthemotorcurrent can keepmorethantherated exciting current inspite ofthelow speedregion withtheV/fcontrol. Thecontrol oftheq-axis current onlyusesthedisturbance observer tosuppress the voltage errorof thedead-time. In thispaper,the performance oftheproposed controller inthelowspeed region isdiscussed basedontheexperimental results. The proposed methodcanimprove thecurrent distortion toless thanquarter against theconventional method. Although the disturbance observer requires motorparameters, itisnotso sensitive." @default.
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- W2187977228 date "2006-01-01" @default.
- W2187977228 modified "2023-09-24" @default.
- W2187977228 title "A Performance Improvement ofV/f Control Using aDisturbance Observer" @default.
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