JPS5445741A - Control system of inverter - Google Patents
Control system of inverterInfo
- Publication number
- JPS5445741A JPS5445741A JP11158177A JP11158177A JPS5445741A JP S5445741 A JPS5445741 A JP S5445741A JP 11158177 A JP11158177 A JP 11158177A JP 11158177 A JP11158177 A JP 11158177A JP S5445741 A JPS5445741 A JP S5445741A
- Authority
- JP
- Japan
- Prior art keywords
- current
- motor
- inverter
- reactor
- capacitor
- 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.)
- Granted
Links
Landscapes
- Control Of Multiple Motors (AREA)
- Inverter Devices (AREA)
Abstract
PURPOSE: To selectively break a motor having a fault occurred therein by temporarily increasing the commutation capacity of an inveter when a detector for current variation is operated, which is provided in the output side of the invettr.
CONSTITUTION: If short circuit may be occurred in the interior of a motor 10 or in the terminal thereof, the short circuit current may be generated and it is supressed by ac reactor 19. On the other hand, the current increasing over a predetermined value is detected by a current variation detector circuit 18 of an inverter circuit 2 side and a signal is applied to a pulse distributor 13. When a gate signal is generated to extend the conduction time of thyristors 34 and 31 provided in a cummutation curcuit 3, because a capacitor 36 is charged over a time longer than normal, the voltage on the capacitor 36 is increased and the commutation limit is extended. Therefore, the inverter can be perfectly commutated. While restricting the current of a motor with ac reactor 19, a thermal relay 9 is operated to turn a switch 8 off
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52111581A JPS5826279B2 (en) | 1977-09-19 | 1977-09-19 | Inverter control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52111581A JPS5826279B2 (en) | 1977-09-19 | 1977-09-19 | Inverter control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5445741A true JPS5445741A (en) | 1979-04-11 |
| JPS5826279B2 JPS5826279B2 (en) | 1983-06-01 |
Family
ID=14564993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52111581A Expired JPS5826279B2 (en) | 1977-09-19 | 1977-09-19 | Inverter control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5826279B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58222797A (en) * | 1982-06-17 | 1983-12-24 | Meidensha Electric Mfg Co Ltd | Defect diagnosing device for inverter |
| WO2020217310A1 (en) * | 2019-04-23 | 2020-10-29 | 三菱電機株式会社 | Electric motor control device, and air conditioning device comprising same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5187713A (en) * | 1975-01-31 | 1976-07-31 | Tokyo Shibaura Electric Co |
-
1977
- 1977-09-19 JP JP52111581A patent/JPS5826279B2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5187713A (en) * | 1975-01-31 | 1976-07-31 | Tokyo Shibaura Electric Co |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58222797A (en) * | 1982-06-17 | 1983-12-24 | Meidensha Electric Mfg Co Ltd | Defect diagnosing device for inverter |
| JPH0116118B2 (en) * | 1982-06-17 | 1989-03-22 | Meidensha Electric Mfg Co Ltd | |
| WO2020217310A1 (en) * | 2019-04-23 | 2020-10-29 | 三菱電機株式会社 | Electric motor control device, and air conditioning device comprising same |
| JPWO2020217310A1 (en) * | 2019-04-23 | 2021-10-21 | 三菱電機株式会社 | Motor control device and air conditioner equipped with it |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5826279B2 (en) | 1983-06-01 |
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