JPS566689A - Controller for induction motor - Google Patents

Controller for induction motor

Info

Publication number
JPS566689A
JPS566689A JP7913979A JP7913979A JPS566689A JP S566689 A JPS566689 A JP S566689A JP 7913979 A JP7913979 A JP 7913979A JP 7913979 A JP7913979 A JP 7913979A JP S566689 A JPS566689 A JP S566689A
Authority
JP
Japan
Prior art keywords
magnetic flux
command
signal
amplified
deviation
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.)
Pending
Application number
JP7913979A
Other languages
Japanese (ja)
Inventor
Ichiro Miyashita
Masakazu Kobata
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.)
Toyo Electric Manufacturing Ltd
Original Assignee
Toyo Electric Manufacturing 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 Toyo Electric Manufacturing Ltd filed Critical Toyo Electric Manufacturing Ltd
Priority to JP7913979A priority Critical patent/JPS566689A/en
Publication of JPS566689A publication Critical patent/JPS566689A/en
Pending 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
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/045—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE:To simplify a control system and heighten its reliability, by separating a magnetic flux control loop and a primary current effective component control loop from each other. CONSTITUTION:An output signal 2 proportional to a gap magnetic flux detected by a gap magnetic flux detector 15 attached to the stator of an induction motor 14 and a magnetic flux command are compared with each other by a calculator 3. A signal corresponding to the deviation of the gap magnetic flux from the command is amplified by an amplifier 4. The amplified signal is applied to a comparator 6 which determines the output voltage of a PWM inverter 12. An effective current command is compared with a detected primary current effective component by a calculator 23. A signal corresponding to the deviation of the detected effective component from the command is amplified by a current deviation amplifier 24 so that the signal becomes a substantial slip frequency command. This command is added to the output signal of a speed detector 16 by an adder 25. The sum is applied to an oscillator 26. The PWM inverter 12 is supplied with a modulated signal which is generated by the mixture and modulation of a slip frequency control signal with a voltage control signal which is for adjustment of magnetic flux.
JP7913979A 1979-06-25 1979-06-25 Controller for induction motor Pending JPS566689A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7913979A JPS566689A (en) 1979-06-25 1979-06-25 Controller for induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7913979A JPS566689A (en) 1979-06-25 1979-06-25 Controller for induction motor

Publications (1)

Publication Number Publication Date
JPS566689A true JPS566689A (en) 1981-01-23

Family

ID=13681617

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7913979A Pending JPS566689A (en) 1979-06-25 1979-06-25 Controller for induction motor

Country Status (1)

Country Link
JP (1) JPS566689A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56128413A (en) * 1980-12-12 1981-10-07 Showa Denko Kk Measuring instrument to thermal environment
JPS5925592A (en) * 1982-08-02 1984-02-09 Toyota Central Res & Dev Lab Inc Control of inverter and device therefor
JPS59231414A (en) * 1983-06-15 1984-12-26 Matsushita Electric Ind Co Ltd Evaluating device of thermal environment
JPS59231415A (en) * 1983-06-15 1984-12-26 Matsushita Electric Ind Co Ltd Evaluating apparatus of environment
JPS60192976A (en) * 1984-03-14 1985-10-01 東洋紡績株式会社 Sweating human body model apparatus
JPS61155748U (en) * 1985-03-20 1986-09-27
US4747699A (en) * 1985-02-06 1988-05-31 Daikin Industries, Ltd. Thermal-environment sensor with means to simulate emissivity of human body
WO2000027024A1 (en) * 1998-10-30 2000-05-11 Kabushiki Kaisha Toshiba Apparatus for controlling synchronous motor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5257928A (en) * 1975-10-14 1977-05-12 Gen Electric Constant torque induction motor controller

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5257928A (en) * 1975-10-14 1977-05-12 Gen Electric Constant torque induction motor controller

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56128413A (en) * 1980-12-12 1981-10-07 Showa Denko Kk Measuring instrument to thermal environment
JPS5925592A (en) * 1982-08-02 1984-02-09 Toyota Central Res & Dev Lab Inc Control of inverter and device therefor
JPH0248044B2 (en) * 1983-06-15 1990-10-23 Matsushita Electric Ind Co Ltd
JPS59231415A (en) * 1983-06-15 1984-12-26 Matsushita Electric Ind Co Ltd Evaluating apparatus of environment
JPH0242414B2 (en) * 1983-06-15 1990-09-21
JPS59231414A (en) * 1983-06-15 1984-12-26 Matsushita Electric Ind Co Ltd Evaluating device of thermal environment
JPS60192976A (en) * 1984-03-14 1985-10-01 東洋紡績株式会社 Sweating human body model apparatus
US4747699A (en) * 1985-02-06 1988-05-31 Daikin Industries, Ltd. Thermal-environment sensor with means to simulate emissivity of human body
US4890932A (en) * 1985-02-06 1990-01-02 Daikin Industries, Ltd. Thermal environment sensor with means to simulate emissivity of human body
JPS61155748U (en) * 1985-03-20 1986-09-27
WO2000027024A1 (en) * 1998-10-30 2000-05-11 Kabushiki Kaisha Toshiba Apparatus for controlling synchronous motor
GB2347283A (en) * 1998-10-30 2000-08-30 Toshiba Kk Apparatus for controlling synchronous motor
AU746555B2 (en) * 1998-10-30 2002-05-02 Kabushiki Kaisha Toshiba Apparatus for controlling synchronous motor
GB2347283B (en) * 1998-10-30 2003-03-12 Toshiba Kk Synchronous motor controller

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