发明授权
- 专利标题: Controller and method for transitioning between control angles
- 专利标题(中): 用于在控制角度之间转换的控制器和方法
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申请号: US12852625申请日: 2010-08-09
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公开(公告)号: US08264192B2公开(公告)日: 2012-09-11
- 发明人: Charles E. Green , Joseph G. Marcinkiewicz
- 申请人: Charles E. Green , Joseph G. Marcinkiewicz
- 申请人地址: US OH Sidney
- 专利权人: Emerson Climate Technologies, Inc.
- 当前专利权人: Emerson Climate Technologies, Inc.
- 当前专利权人地址: US OH Sidney
- 代理机构: Harness, Dickey & Pierce, P.L.C.
- 主分类号: H02P6/08
- IPC分类号: H02P6/08 ; H02P27/08
摘要:
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.
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