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:
Toshiyuki Kaiya
Application Number:
JP2003523314A
Publication Date:
October 19, 2011
Filing Date:
August 27, 2001
Export Citation:
Assignee:
Mitsubishi Electric Corporation
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:
| JP2000357013A | 2000-12-26 | |||
| JP2001042948A | 2001-02-16 | |||
| JPH0675638A | 1994-03-18 | |||
| JPH0637907U | 1994-05-20 | |||
| JPS5884312A | 1983-05-20 | |||
| JPH05324083A | 1993-12-07 | |||
| JPH10143248A | 1998-05-29 |
Attorney, Agent or Firm:
Shogo Takahashi
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka