发明申请
US20110050139A1 PHASE DETECTION METHOD, PHASE DETECTING APPARATUS, SYNCHRONOUS-MOTOR CONTROL METHOD, AND SYNCHRONOUS MOTOR CONTROLLER 有权
相位检测方法,相位检测装置,同步电机控制方法和同步电机控制器

  • 专利标题: PHASE DETECTION METHOD, PHASE DETECTING APPARATUS, SYNCHRONOUS-MOTOR CONTROL METHOD, AND SYNCHRONOUS MOTOR CONTROLLER
  • 专利标题(中): 相位检测方法,相位检测装置,同步电机控制方法和同步电机控制器
  • 申请号: US12940663
    申请日: 2010-11-05
  • 公开(公告)号: US20110050139A1
    公开(公告)日: 2011-03-03
  • 发明人: Satoshi ICHIKINaoki Kawaguchi
  • 申请人: Satoshi ICHIKINaoki Kawaguchi
  • 申请人地址: JP Kanagawa
  • 专利权人: FUJITSU GENERAL LIMITED
  • 当前专利权人: FUJITSU GENERAL LIMITED
  • 当前专利权人地址: JP Kanagawa
  • 优先权: JP2007-029620 20070208
  • 主分类号: H02P6/18
  • IPC分类号: H02P6/18
PHASE DETECTION METHOD, PHASE DETECTING APPARATUS, SYNCHRONOUS-MOTOR CONTROL METHOD, AND SYNCHRONOUS MOTOR CONTROLLER
摘要:
It is determined which of six continuous sections having different magnitude correlation of signal amplitude of each phase of an input three-phase signal a section is. Predetermined subtraction is performed between respective phases in the section, to obtain a normalized amplitude value normalized in the section, using the subtraction result. The normalized amplitude value is converted to a vector phase for one cycle based on a predetermined phase and output corresponding to the determined section.
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