JPS54120818A - Torque detector for multiphase ac machine - Google Patents

Torque detector for multiphase ac machine

Info

Publication number
JPS54120818A
JPS54120818A JP2825778A JP2825778A JPS54120818A JP S54120818 A JPS54120818 A JP S54120818A JP 2825778 A JP2825778 A JP 2825778A JP 2825778 A JP2825778 A JP 2825778A JP S54120818 A JPS54120818 A JP S54120818A
Authority
JP
Japan
Prior art keywords
flux
electromotive force
calculator
machine
multiphase
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2825778A
Other languages
Japanese (ja)
Other versions
JPS5854758B2 (en
Inventor
Toshihiro Nomura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP53028257A priority Critical patent/JPS5854758B2/en
Publication of JPS54120818A publication Critical patent/JPS54120818A/en
Publication of JPS5854758B2 publication Critical patent/JPS5854758B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE: To operate a detection of the torque regardless of the direction of rotation, by eliminating a use of the divider for the operation.
CONSTITUTION: The constitution comprises an electromotive force calculator 18, for processing the operation of electromotive force from a terminal voltage of and current in the AC machine, a flux calculator 20, for processing the operation of flux by integrating the electromotive force obtained from said electromotive force calculator 18, multipliers 22, 24, 26, for multiplying the flux obtained from said flux calculator 20 and each phase current, and an output generating device, for generating a torque detection output by adding the product of each phase flux and current obtained from said multipliers. In such way, no use of a divider for the operation can provide an operation of the torque detection regardless of the direction of rotation.
COPYRIGHT: (C)1979,JPO&Japio
JP53028257A 1978-03-14 1978-03-14 Torque detection device for polyphase alternating current machine Expired JPS5854758B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53028257A JPS5854758B2 (en) 1978-03-14 1978-03-14 Torque detection device for polyphase alternating current machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53028257A JPS5854758B2 (en) 1978-03-14 1978-03-14 Torque detection device for polyphase alternating current machine

Publications (2)

Publication Number Publication Date
JPS54120818A true JPS54120818A (en) 1979-09-19
JPS5854758B2 JPS5854758B2 (en) 1983-12-06

Family

ID=12243506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53028257A Expired JPS5854758B2 (en) 1978-03-14 1978-03-14 Torque detection device for polyphase alternating current machine

Country Status (1)

Country Link
JP (1) JPS5854758B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58186398A (en) * 1982-04-26 1983-10-31 Yaskawa Electric Mfg Co Ltd Torque detector circuit
JPS6083937U (en) * 1983-11-14 1985-06-10 株式会社明電舎 Induction motor torque detection device
JPS6188786A (en) * 1984-10-03 1986-05-07 Nippon Steel Corp Load estimating device
EP0849872A1 (en) * 1996-12-19 1998-06-24 STMicroelectronics S.A. Induction motor controller

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58186398A (en) * 1982-04-26 1983-10-31 Yaskawa Electric Mfg Co Ltd Torque detector circuit
JPH0510038B2 (en) * 1982-04-26 1993-02-08 Yaskawa Electric Corp
JPS6083937U (en) * 1983-11-14 1985-06-10 株式会社明電舎 Induction motor torque detection device
JPS6188786A (en) * 1984-10-03 1986-05-07 Nippon Steel Corp Load estimating device
EP0849872A1 (en) * 1996-12-19 1998-06-24 STMicroelectronics S.A. Induction motor controller
FR2757709A1 (en) * 1996-12-19 1998-06-26 Sgs Thomson Microelectronics INDUCTION MOTOR REGULATOR

Also Published As

Publication number Publication date
JPS5854758B2 (en) 1983-12-06

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