JPS6450763A - Two-multiplex polyphase cycloconverter - Google Patents
Two-multiplex polyphase cycloconverterInfo
- Publication number
- JPS6450763A JPS6450763A JP62206219A JP20621987A JPS6450763A JP S6450763 A JPS6450763 A JP S6450763A JP 62206219 A JP62206219 A JP 62206219A JP 20621987 A JP20621987 A JP 20621987A JP S6450763 A JPS6450763 A JP S6450763A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- cycloconverters
- excited converter
- cycloconverter
- phase difference
- 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
Abstract
PURPOSE:To reduce a higher harmonic current by selecting a power supply voltage phase and an output voltage phase in a manner wherein harmful higher harmonics are canceled each other between a number of cycloconverters. CONSTITUTION:A 2-multiplex polyphase cycloconverter is constituted of unit cycloconverters 11-32, alternately anti-parallel connecting a separately-excited converter and a self-excited converter, and input transformers 41-43, driving a load 5 of AC motor or the like. Each of two sets of these cycloconverters 11-32 sets its input voltage phase different 30 deg. by connection of the input transformers 41-43. By the phase thus selected, the fifth and seventh higher harmonic components are reduced as compared with when no phase difference is generated in the input voltage (phase difference 0). Further selecting an output voltage to a phase difference of 180 deg. is equivalent to replacing the unit cycloconverter 12A with the self-excited converter while the other converter 12B with the separately-excited converter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62206219A JPS6450763A (en) | 1987-08-21 | 1987-08-21 | Two-multiplex polyphase cycloconverter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62206219A JPS6450763A (en) | 1987-08-21 | 1987-08-21 | Two-multiplex polyphase cycloconverter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6450763A true JPS6450763A (en) | 1989-02-27 |
Family
ID=16519739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62206219A Pending JPS6450763A (en) | 1987-08-21 | 1987-08-21 | Two-multiplex polyphase cycloconverter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6450763A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0712619U (en) * | 1993-08-09 | 1995-03-03 | 株式会社伊藤製作所 | Connecting ring |
WO1997009773A1 (en) * | 1995-09-08 | 1997-03-13 | Kabushiki Kaisha Yaskawa Denki | Power converter and power converting method |
CN1060599C (en) * | 1997-02-03 | 2001-01-10 | 北京凯奇新技术开发总公司 | High-voltage large-power frequency convertor without power network pollution |
EP1009096A3 (en) * | 1998-12-09 | 2001-11-07 | Electric Boat Corporation | Method and arrangement for a high voltage single-stage variable speed drive |
US7102331B2 (en) | 2003-01-17 | 2006-09-05 | Black & Decker Inc. | Generator with dual cycloconverter for 120/240 VAC operation |
CN102185490A (en) * | 2011-05-20 | 2011-09-14 | 上海交通大学 | Medium-voltage frequency converter capable of realizing AC-AC (alternating-current) direct transformation |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61177167A (en) * | 1985-01-30 | 1986-08-08 | Fuji Electric Co Ltd | Reactive power compensation type polyphase cycloconverter |
JPS627786B2 (en) * | 1981-02-27 | 1987-02-19 | Nippon Telegraph & Telephone |
-
1987
- 1987-08-21 JP JP62206219A patent/JPS6450763A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS627786B2 (en) * | 1981-02-27 | 1987-02-19 | Nippon Telegraph & Telephone | |
JPS61177167A (en) * | 1985-01-30 | 1986-08-08 | Fuji Electric Co Ltd | Reactive power compensation type polyphase cycloconverter |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0712619U (en) * | 1993-08-09 | 1995-03-03 | 株式会社伊藤製作所 | Connecting ring |
WO1997009773A1 (en) * | 1995-09-08 | 1997-03-13 | Kabushiki Kaisha Yaskawa Denki | Power converter and power converting method |
EP0852425A1 (en) * | 1995-09-08 | 1998-07-08 | Kabushiki Kaisha Yaskawa Denki | Power converter and power converting method |
EP0852425A4 (en) * | 1995-09-08 | 1999-12-29 | Yaskawa Denki Seisakusho Kk | Power converter and power converting method |
CN1065686C (en) * | 1995-09-08 | 2001-05-09 | 株式会社安川电机 | Power converter and power converting method |
KR100420698B1 (en) * | 1995-09-08 | 2004-06-12 | 가부시키가이샤 야스가와덴끼 | Power converter and power conversion method |
CN1060599C (en) * | 1997-02-03 | 2001-01-10 | 北京凯奇新技术开发总公司 | High-voltage large-power frequency convertor without power network pollution |
EP1009096A3 (en) * | 1998-12-09 | 2001-11-07 | Electric Boat Corporation | Method and arrangement for a high voltage single-stage variable speed drive |
US7102331B2 (en) | 2003-01-17 | 2006-09-05 | Black & Decker Inc. | Generator with dual cycloconverter for 120/240 VAC operation |
CN102185490A (en) * | 2011-05-20 | 2011-09-14 | 上海交通大学 | Medium-voltage frequency converter capable of realizing AC-AC (alternating-current) direct transformation |
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