JPS5649693A - Frequency converter - Google Patents

Frequency converter

Info

Publication number
JPS5649693A
JPS5649693A JP12388179A JP12388179A JPS5649693A JP S5649693 A JPS5649693 A JP S5649693A JP 12388179 A JP12388179 A JP 12388179A JP 12388179 A JP12388179 A JP 12388179A JP S5649693 A JPS5649693 A JP S5649693A
Authority
JP
Japan
Prior art keywords
output
input voltage
filters
inverter
gto
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
JP12388179A
Other languages
Japanese (ja)
Other versions
JPS6148356B2 (en
Inventor
Toshiaki Okuyama
Hiroshi Nagase
Yuzuru Kubota
Katsunori Suzuki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12388179A priority Critical patent/JPS5649693A/en
Publication of JPS5649693A publication Critical patent/JPS5649693A/en
Publication of JPS6148356B2 publication Critical patent/JPS6148356B2/ja
Granted 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
    • H02P27/06—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 using dc to ac converters or inverters
    • H02P27/08—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 using dc to ac converters or inverters with pulse width modulation

Landscapes

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

Abstract

PURPOSE:To prevent the effects of rectification ripplies and to reduce the capacity of filters by varying the pulse width of the PWM signal of a pulse-width modulation type inverter depending on the signal of a detector circuit which detects a DC input voltage. CONSTITUTION:The output of a rectifier 1 is applied to a PWM inverter 4 wherein GTO is employed via filters 2 and 3, and an induction motor 5 is driven by the output thereof. The output of a frequency command circuit 6 and the output of an oscillator 7 are multiplied in a multiplier 8, and the result is given to a comparator 11. The DC input voltage to the invrter 4 is detected by a detector 13, and multiplied by the output from a triangular wave generator 9 in a multiplier 10, and the result is given to the comparator 11. The output thereof controls the on and off of the GTO of the inverter 4. Since the variation in the DC input voltage which will appear in the output voltage can be cancelled, the capacity of the filters can be reduced and the configuration of the device can be made small.
JP12388179A 1979-09-28 1979-09-28 Frequency converter Granted JPS5649693A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12388179A JPS5649693A (en) 1979-09-28 1979-09-28 Frequency converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12388179A JPS5649693A (en) 1979-09-28 1979-09-28 Frequency converter

Publications (2)

Publication Number Publication Date
JPS5649693A true JPS5649693A (en) 1981-05-06
JPS6148356B2 JPS6148356B2 (en) 1986-10-23

Family

ID=14871667

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12388179A Granted JPS5649693A (en) 1979-09-28 1979-09-28 Frequency converter

Country Status (1)

Country Link
JP (1) JPS5649693A (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58134091U (en) * 1982-03-03 1983-09-09 株式会社明電舎 PWM inverter control device
JPS58224572A (en) * 1982-06-24 1983-12-26 Mitsubishi Electric Corp Voltage reference waveform generator circuit for pulse width modulation inverter
JPS59169383A (en) * 1983-03-15 1984-09-25 Meidensha Electric Mfg Co Ltd Output voltage controller for inverter in vector control system
JPS6059992A (en) * 1983-09-12 1985-04-06 Toshiba Corp Bed drive controller
JPS60141193A (en) * 1983-12-28 1985-07-26 Matsushita Electric Ind Co Ltd Drive device of induction motor
WO1986006227A1 (en) * 1985-04-16 1986-10-23 Fanuc Ltd Method of controlling a three-phase induction motor
EP0252898A2 (en) * 1986-05-27 1988-01-13 AUSTRIA Antriebstechnik G. Bauknecht Aktiengesellschaft Three-phase induction motor drive with frequency converter control
US4978894A (en) * 1988-09-08 1990-12-18 Kabushiki Kaisha Toshiba Single phase to three phase rectifier/inverter with DC ripple compensation
JPH0570197U (en) * 1992-08-25 1993-09-21 株式会社明電舎 Inverter output voltage controller in vector control system
US5532569A (en) * 1987-06-03 1996-07-02 Hitachi, Ltd. Inverter control apparatus
EP1271071A1 (en) * 2000-03-30 2003-01-02 Daikin Industries, Ltd. Method of controlling preheating power and mechanism for providing preheating
WO2010070723A1 (en) * 2008-12-15 2010-06-24 三菱電機株式会社 Power converter for driving motor
JP2011239680A (en) * 2011-09-01 2011-11-24 Mitsubishi Electric Corp Power converter for driving a motor
JP2012157242A (en) * 2005-12-28 2012-08-16 Toshiba Schneider Inverter Corp Inverter device
KR101191424B1 (en) 2010-01-19 2012-10-16 위니아만도 주식회사 Apparatus for detecting over current of inverter circuit
WO2019088118A1 (en) 2017-11-06 2019-05-09 ダイキン工業株式会社 Power conversion device and air-conditioning device
WO2019088294A1 (en) 2017-11-06 2019-05-09 ダイキン工業株式会社 Power converter and air conditioner

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007181355A (en) * 2005-12-28 2007-07-12 Toshiba Schneider Inverter Corp Inverter device
JP5257533B2 (en) 2011-09-26 2013-08-07 ダイキン工業株式会社 Power converter
JP6195003B1 (en) 2016-09-30 2017-09-13 ダイキン工業株式会社 Inverter device

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58134091U (en) * 1982-03-03 1983-09-09 株式会社明電舎 PWM inverter control device
JPS58224572A (en) * 1982-06-24 1983-12-26 Mitsubishi Electric Corp Voltage reference waveform generator circuit for pulse width modulation inverter
JPH0447553B2 (en) * 1982-06-24 1992-08-04 Mitsubishi Electric Corp
JPS59169383A (en) * 1983-03-15 1984-09-25 Meidensha Electric Mfg Co Ltd Output voltage controller for inverter in vector control system
JPS6059992A (en) * 1983-09-12 1985-04-06 Toshiba Corp Bed drive controller
JPS60141193A (en) * 1983-12-28 1985-07-26 Matsushita Electric Ind Co Ltd Drive device of induction motor
WO1986006227A1 (en) * 1985-04-16 1986-10-23 Fanuc Ltd Method of controlling a three-phase induction motor
US4800327A (en) * 1985-04-16 1989-01-24 Fanuc Ltd Three-phase induction motor control method
EP0252898A2 (en) * 1986-05-27 1988-01-13 AUSTRIA Antriebstechnik G. Bauknecht Aktiengesellschaft Three-phase induction motor drive with frequency converter control
US5532569A (en) * 1987-06-03 1996-07-02 Hitachi, Ltd. Inverter control apparatus
US4978894A (en) * 1988-09-08 1990-12-18 Kabushiki Kaisha Toshiba Single phase to three phase rectifier/inverter with DC ripple compensation
JPH0570197U (en) * 1992-08-25 1993-09-21 株式会社明電舎 Inverter output voltage controller in vector control system
EP1271071A1 (en) * 2000-03-30 2003-01-02 Daikin Industries, Ltd. Method of controlling preheating power and mechanism for providing preheating
EP1271071A4 (en) * 2000-03-30 2010-03-17 Daikin Ind Ltd Method of controlling preheating power and mechanism for providing preheating
JP2012157242A (en) * 2005-12-28 2012-08-16 Toshiba Schneider Inverter Corp Inverter device
WO2010070723A1 (en) * 2008-12-15 2010-06-24 三菱電機株式会社 Power converter for driving motor
JP4819970B2 (en) * 2008-12-15 2011-11-24 三菱電機株式会社 Electric motor drive power converter
US8258735B2 (en) 2008-12-15 2012-09-04 Mitsubishi Electric Corporation Power converting apparatus for motor driving
KR101191424B1 (en) 2010-01-19 2012-10-16 위니아만도 주식회사 Apparatus for detecting over current of inverter circuit
JP2011239680A (en) * 2011-09-01 2011-11-24 Mitsubishi Electric Corp Power converter for driving a motor
WO2019088118A1 (en) 2017-11-06 2019-05-09 ダイキン工業株式会社 Power conversion device and air-conditioning device
WO2019088294A1 (en) 2017-11-06 2019-05-09 ダイキン工業株式会社 Power converter and air conditioner
US11211890B2 (en) 2017-11-06 2021-12-28 Daikin Industries, Ltd. Power conversion apparatus and air-conditioning apparatus
US11611285B2 (en) 2017-11-06 2023-03-21 Daikin Industries, Ltd. Power converter and air conditioner
EP4400780A2 (en) 2017-11-06 2024-07-17 Daikin Industries, Ltd. Power converter and air conditioner

Also Published As

Publication number Publication date
JPS6148356B2 (en) 1986-10-23

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