JPS6469293A - Inverter device - Google Patents
Inverter deviceInfo
- Publication number
- JPS6469293A JPS6469293A JP62225345A JP22534587A JPS6469293A JP S6469293 A JPS6469293 A JP S6469293A JP 62225345 A JP62225345 A JP 62225345A JP 22534587 A JP22534587 A JP 22534587A JP S6469293 A JPS6469293 A JP S6469293A
- Authority
- JP
- Japan
- Prior art keywords
- output
- overcurrent
- current
- time
- negative
- 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
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE:To effectively prevent an overcurrent and to rapidly accelerate a motor by detecting that a negative load is operated at the time of an acceleration mode. CONSTITUTION:Output overcurrent detecting means detects the output overcurrent of an inverter at the time of an acceleration mode. Since a microcomputer is a positive load when the polarity of the current of a DC bus is positive, an output frequency is reduced (in step Sb) similarly to a conventional inverter, and output (in step S5). When the polarity of the current of a DC bus 9 is negative, it is negative load. Accordingly, its output frequency is raised (in step S8), and output (in step S5). Thus, the output frequency is rapidly brought into coincidence with the speed of the rotor of the motor to suppress an output current, thereby preventing an overcurrent at the time of negative load.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62225345A JPS6469293A (en) | 1987-09-10 | 1987-09-10 | Inverter device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62225345A JPS6469293A (en) | 1987-09-10 | 1987-09-10 | Inverter device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6469293A true JPS6469293A (en) | 1989-03-15 |
Family
ID=16827887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62225345A Pending JPS6469293A (en) | 1987-09-10 | 1987-09-10 | Inverter device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6469293A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01180898U (en) * | 1988-05-27 | 1989-12-26 | ||
WO2016121113A1 (en) * | 2015-01-30 | 2016-08-04 | 三菱電機株式会社 | Inverter device |
-
1987
- 1987-09-10 JP JP62225345A patent/JPS6469293A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01180898U (en) * | 1988-05-27 | 1989-12-26 | ||
WO2016121113A1 (en) * | 2015-01-30 | 2016-08-04 | 三菱電機株式会社 | Inverter device |
JP5972505B1 (en) * | 2015-01-30 | 2016-08-17 | 三菱電機株式会社 | Inverter device |
CN107258050A (en) * | 2015-01-30 | 2017-10-17 | 三菱电机株式会社 | DC-to-AC converter |
US10079556B2 (en) | 2015-01-30 | 2018-09-18 | Mitsubishi Electric Corporation | Inverter device |
CN107258050B (en) * | 2015-01-30 | 2019-11-05 | 三菱电机株式会社 | DC-to-AC converter |
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