公开(公告)号：EP2465195A4

公开(公告)日：2017-03-29

申请号：EP10808637

申请日：2010-08-10

Applicant: EMERSON CLIMATE TECHNOLOGIES

Inventor： GREEN CHARLES E ,  MARCINKIEWICZ JOSEPH G

IPC: H02P27/04 ,  H02M1/42 ,  H02M3/158 ,  H02M7/48 ,  H02P6/20 ,  H02P6/34

CPC classification number: H02P6/06 ,  H02M1/4225 ,  H02M3/1584 ,  H02P6/001 ,  H02P6/20 ,  H02P6/34 ,  Y02B70/126

Abstract: A system includes a pulse-width modulation (PWM) module, a subtraction module, an error reducing module, and a summing module. The PWM module controls switching of an inverter that powers a motor. The PWM module controls the switching based on a first angle in a first mode and a second angle in a second mode. The subtraction module determines a difference between the first and second angles. The error reducing module (i) stores the difference when a transition from the first mode to the second mode is commanded and (ii) decreases a magnitude of the stored difference to zero. The summing module calculates a sum of the stored difference and the second angle. The PWM module controls the switching based on the sum in the second mode.