JPS6455078A - Feeding system using three-phase multiple pwm inverter - Google Patents
Feeding system using three-phase multiple pwm inverterInfo
- 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
Links
Landscapes
- 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.
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)
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)
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 |
-
1987
- 1987-08-26 JP JP62210276A patent/JPS6455078A/en active Pending
Patent Citations (3)
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)
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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