JPH0433574A - Inverter - Google Patents
InverterInfo
- Publication number
- JPH0433574A JPH0433574A JP2137472A JP13747290A JPH0433574A JP H0433574 A JPH0433574 A JP H0433574A JP 2137472 A JP2137472 A JP 2137472A JP 13747290 A JP13747290 A JP 13747290A JP H0433574 A JPH0433574 A JP H0433574A
- Authority
- JP
- Japan
- Prior art keywords
- inverter
- inverters
- transistor
- pulse width
- unit
- 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 connect arbitrary number of unit inverters in parallel by detecting the output currents of unit inverters by current transformers, and comparing the currents of the inverters with an output current of a unit inverter to become a reference.
CONSTITUTION: The output of a PWM signal generator 9 is inputted to a current balance controller 8. The output currents of unit inverters detected by current transformers 4, 5 are inputted to the controller 8. A unit inverter 2 is used as a reference inverter. The output currents of the inverters are compared with the current value of the inverter 2. If it is larger than the value, a PWM pulse width to be applied to a transistor of a positive side is shortened as compared with a pulse width to be applied to a transistor of a negative side, while if it is smaller than the value, the PWM pulse width to be applied to the transistor of the positive side is lengthened as compared with the pulse width to be applied to a transistor of a negative side.
COPYRIGHT: (C)1992,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2137472A JPH0433574A (en) | 1990-05-28 | 1990-05-28 | Inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2137472A JPH0433574A (en) | 1990-05-28 | 1990-05-28 | Inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0433574A true JPH0433574A (en) | 1992-02-04 |
Family
ID=15199411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2137472A Pending JPH0433574A (en) | 1990-05-28 | 1990-05-28 | Inverter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0433574A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008005673A (en) * | 2006-06-26 | 2008-01-10 | Nippon Reliance Kk | Power conversion system and power conversion method performing parallel operation of inverters |
| JP2008080752A (en) * | 2006-09-29 | 2008-04-10 | Shachihata Inc | Seal case |
| CN109888802A (en) * | 2019-03-20 | 2019-06-14 | 上海交通大学 | A kind of three-level three-phase disequilibrium regulating device that can be covert and its bearing calibration |
| WO2020116226A1 (en) * | 2018-12-04 | 2020-06-11 | 株式会社デンソー | Power conversion device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6122764A (en) * | 1984-07-11 | 1986-01-31 | Fuji Electric Co Ltd | Parallel operation control system of voltage type inverter |
| JPH01185168A (en) * | 1988-01-09 | 1989-07-24 | Hitachi Ltd | Parallel operation controller for pwm inverter |
-
1990
- 1990-05-28 JP JP2137472A patent/JPH0433574A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6122764A (en) * | 1984-07-11 | 1986-01-31 | Fuji Electric Co Ltd | Parallel operation control system of voltage type inverter |
| JPH01185168A (en) * | 1988-01-09 | 1989-07-24 | Hitachi Ltd | Parallel operation controller for pwm inverter |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008005673A (en) * | 2006-06-26 | 2008-01-10 | Nippon Reliance Kk | Power conversion system and power conversion method performing parallel operation of inverters |
| JP2008080752A (en) * | 2006-09-29 | 2008-04-10 | Shachihata Inc | Seal case |
| WO2020116226A1 (en) * | 2018-12-04 | 2020-06-11 | 株式会社デンソー | Power conversion device |
| CN109888802A (en) * | 2019-03-20 | 2019-06-14 | 上海交通大学 | A kind of three-level three-phase disequilibrium regulating device that can be covert and its bearing calibration |
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