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Patent Searching and Data


Title:
同期電動機のセンサレス制御装置
Document Type and Number:
Japanese Patent JP4797323
Kind Code:
B2
Abstract:
The invention provides a synchronous motor sensorless controller which drives a synchronous motor without use of a rotational position sensor. The controller has a relative position counter 4 which acquires an estimated position of a magnetic pole from the position-and-speed estimation device simultaneously with resetting a summated value to zero when the reference position signal is input and which starts summation operation; and a speed instruction generator 3 having a position controller 29 which performs position control operation on the basis of a deviation between an instruction value pertaining to the amount of movement from the reference position and a summated value output as a relative position from the relative position counter, the generator outputting a speed instruction. The sensorless controller can position at a predetermined location a synchronous motor not having a position sensor.

Inventors:
貝谷 敏之
Application Number:
JP2003523314A
Publication Date:
October 19, 2011
Filing Date:
August 27, 2001
Export Citation:
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Assignee:
三菱電機株式会社
International Classes:
G05D3/12; G05B11/18; G05D16/00; H02P3/06; H02P3/18; H02P6/06; H02P6/08; H02P6/16; H02P6/17; H02P6/18; H02P6/182; H02P6/28; H02P21/18; H02P21/22; H02P21/24; H02P21/36; H02P23/12; H02P23/16; H02P23/18; H02P27/06
Domestic Patent References:
JP2000357013A2000-12-26
JP2001042948A2001-02-16
JPH0675638A1994-03-18
JPH0637907U1994-05-20
JPS5884312A1983-05-20
JPH05324083A1993-12-07
JPH10143248A1998-05-29
Attorney, Agent or Firm:
高橋 省吾
稲葉 忠彦
村上 加奈子
中鶴 一隆