JPS6455078A - Feeding system using three-phase multiple pwm inverter - Google Patents

Feeding system using three-phase multiple pwm inverter

Info

Publication number
JPS6455078A
JPS6455078A JP62210276A JP21027687A JPS6455078A JP S6455078 A JPS6455078 A JP S6455078A JP 62210276 A JP62210276 A JP 62210276A JP 21027687 A JP21027687 A JP 21027687A JP S6455078 A JPS6455078 A JP S6455078A
Authority
JP
Japan
Prior art keywords
phase
windings
inverter
cycles
modulation rate
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
JP62210276A
Other languages
Japanese (ja)
Inventor
Hisao Matsumoto
Hiroshi Takami
Shigenori Kinoshita
Takao Yanase
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 JP62210276A priority Critical patent/JPS6455078A/en
Publication of JPS6455078A publication Critical patent/JPS6455078A/en
Pending legal-status Critical Current

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  • Inverter Devices (AREA)

Abstract

PURPOSE:To remove higher harmonics by changing the number of cycles of a triangular wave (carrier wave) according to the magnitude of a modulation rate. CONSTITUTION:A three-phase double inverter 2 composed of two sets if three- phase inverters supplies a three-phase double winding motor 4 with electricity via a three phase-composed coupling reactor 3. Said motor 4 is provided with two sets of windings of three-phase windings 21-23 with O1-O2 as neutral points. Respective windings are connected with the windings 111-233 of three- phase cores 31-33 of the coupling reactor 3. In this case, when the motor 4 is supplied with electricity via the coupling reactor 3 from said inverter 2, the number of cycles of a carrier wave per cycle of a fundamental harmonic of the inverter 2 is changed according to the magnitude of said modulation rate. In the region where the modulation rate is small, the number of cycles is set to a multiple of 3 and to the number other than a multiple of three in the region where said rate is large, so that higher harmonics can be controlled over the whole operating range.
JP62210276A 1987-08-26 1987-08-26 Feeding system using three-phase multiple pwm inverter Pending JPS6455078A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62210276A JPS6455078A (en) 1987-08-26 1987-08-26 Feeding system using three-phase multiple pwm inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62210276A JPS6455078A (en) 1987-08-26 1987-08-26 Feeding system using three-phase multiple pwm inverter

Publications (1)

Publication Number Publication Date
JPS6455078A true JPS6455078A (en) 1989-03-02

Family

ID=16586709

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62210276A Pending JPS6455078A (en) 1987-08-26 1987-08-26 Feeding system using three-phase multiple pwm inverter

Country Status (1)

Country Link
JP (1) JPS6455078A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0547305U (en) * 1991-11-29 1993-06-22 いすゞ自動車株式会社 Rocker shaft positioning structure
FR2940550A1 (en) * 2008-12-24 2010-06-25 Converteam Technology Ltd SYSTEM FOR CONVERTING AT LEAST ONE CONTINUOUS ELECTRICAL CURRENT INTO AN ALTERNATIVE ELECTRIC CURRENT OUTPUT POLYPHASE

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5720178A (en) * 1980-07-08 1982-02-02 Mitsubishi Electric Corp Modurating method for inverter
JPS5721957A (en) * 1980-07-16 1982-02-04 Toshio Oyamada Circulation system dust collector
JPS60190170A (en) * 1984-03-08 1985-09-27 Meidensha Electric Mfg Co Ltd Sinusoidal pwm waveform generator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5720178A (en) * 1980-07-08 1982-02-02 Mitsubishi Electric Corp Modurating method for inverter
JPS5721957A (en) * 1980-07-16 1982-02-04 Toshio Oyamada Circulation system dust collector
JPS60190170A (en) * 1984-03-08 1985-09-27 Meidensha Electric Mfg Co Ltd Sinusoidal pwm waveform generator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0547305U (en) * 1991-11-29 1993-06-22 いすゞ自動車株式会社 Rocker shaft positioning structure
FR2940550A1 (en) * 2008-12-24 2010-06-25 Converteam Technology Ltd SYSTEM FOR CONVERTING AT LEAST ONE CONTINUOUS ELECTRICAL CURRENT INTO AN ALTERNATIVE ELECTRIC CURRENT OUTPUT POLYPHASE
EP2202875A1 (en) * 2008-12-24 2010-06-30 Converteam Technology Ltd System for converting at least one direct-current electric input to a multi-phase alternating-current electric output

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