JPS5791687A - Phase difference detector for induction motor - Google Patents

Phase difference detector for induction motor

Info

Publication number
JPS5791687A
JPS5791687A JP55165890A JP16589080A JPS5791687A JP S5791687 A JPS5791687 A JP S5791687A JP 55165890 A JP55165890 A JP 55165890A JP 16589080 A JP16589080 A JP 16589080A JP S5791687 A JPS5791687 A JP S5791687A
Authority
JP
Japan
Prior art keywords
circuit
phase difference
magnetoeffective
control system
output signal
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
JP55165890A
Other languages
Japanese (ja)
Other versions
JPS6040274B2 (en
Inventor
Fumio Harashima
Kunio Tsuboi
Hiroshi Ogawa
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP55165890A priority Critical patent/JPS6040274B2/en
Publication of JPS5791687A publication Critical patent/JPS5791687A/en
Publication of JPS6040274B2 publication Critical patent/JPS6040274B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/16—Controlling the angular speed of one shaft

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Control Of Velocity Or Acceleration (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE:To perform speed control of motor instantaneously and continuously by utilizing a voltage signal containing solely cosine component of a phase difference, which is obtained by addition among output signal voltages generated in a plurality of magnetoeffective elements. CONSTITUTION:Two signal currents from a frequency generating circuit 31 which commands a rotational speed are applied on a magnetoeffective element 32 which is provided as a sensor. And an output signal produced by a multiplying function of the element 32 is lead through a volage controlled oscillator 35 which contains a circuit that gives a cosine component of a phase difference continuously by means of direct application or with an intermediary of an addition circuit, to a driving circuit 36 consisting of a logical circuit, a gated amplifier and a thyristor inverter or the like of the next stage, and a motor 37 is driven. By this method because of scarce necessity for a conventional phase comparing circuit and a low pass filter there is not any effect on a dynamic characteristics of a control system, and with simplicity in component of the control system and a rapid reponse an instantaneous and continuous control can be performed.
JP55165890A 1980-11-27 1980-11-27 phase difference detector Expired JPS6040274B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55165890A JPS6040274B2 (en) 1980-11-27 1980-11-27 phase difference detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55165890A JPS6040274B2 (en) 1980-11-27 1980-11-27 phase difference detector

Publications (2)

Publication Number Publication Date
JPS5791687A true JPS5791687A (en) 1982-06-07
JPS6040274B2 JPS6040274B2 (en) 1985-09-10

Family

ID=15820912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55165890A Expired JPS6040274B2 (en) 1980-11-27 1980-11-27 phase difference detector

Country Status (1)

Country Link
JP (1) JPS6040274B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6184904U (en) * 1984-11-08 1986-06-04

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6184904U (en) * 1984-11-08 1986-06-04

Also Published As

Publication number Publication date
JPS6040274B2 (en) 1985-09-10

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