• Patent Title: Method, computer program product and controller for starting-up a switched reluctance motor, and electrical apparatus implementing same
  • Application No.: US14785672
    Application Date: 2013-04-22
  • Publication No.: US09729088B2
    Publication Date: 2017-08-08
  • Inventor: Pavel Grasblum
  • Applicant: Pavel Grasblum
  • Applicant Address: US TX Austin
  • Assignee: NXP USA, Inc.
  • Current Assignee: NXP USA, Inc.
  • Current Assignee Address: US TX Austin
  • International Application: PCT/IB2013/053171 WO 20130422
  • International Announcement: WO2014/174339 WO 20141030
  • Main IPC: H02P1/00
  • IPC: H02P1/00 H02P1/16 H02P25/08 H02P25/089
Method, computer program product and controller for starting-up a switched reluctance motor, and electrical apparatus implementing same
Abstract:
A method of starting-up a switched reluctance, SR, motor is provided. The method comprises simultaneously energizing a plurality of phases at a first time point with respective phase voltages that are substantially the same, until the motor rotor is stabilized in alignment with either one of the plurality of phases; simultaneously de-energizing the plurality of phases at a second time point that follows the first time point; monitoring a decrease of respective phase currents in the plurality of phases from a third time point that follows the second time point by a first predetermined time interval; determining a phase of alignment of the rotor using evaluation of the decrease of the phase currents following simultaneous de-energizing of the plurality of phases; and, initiating rotation of the rotor from the determined phase of alignment of the rotor.
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