JPS5631376A - Protective circuit for direct current overvoltage of inverter - Google Patents
Protective circuit for direct current overvoltage of inverterInfo
- Publication number
- JPS5631376A JPS5631376A JP10720279A JP10720279A JPS5631376A JP S5631376 A JPS5631376 A JP S5631376A JP 10720279 A JP10720279 A JP 10720279A JP 10720279 A JP10720279 A JP 10720279A JP S5631376 A JPS5631376 A JP S5631376A
- Authority
- JP
- Japan
- Prior art keywords
- overvoltage
- circuit
- inverter
- interrupter
- detected
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/122—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters
- H02H7/1227—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters responsive to abnormalities in the output circuit, e.g. short circuit
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
PURPOSE:To prevent the breakdown of parts due to the energy of reverse currents by a method wherein the overvoltage detecting circuit is mounted which detects voltage at the both ends of a smoothing capacitor, and an operating circuit for operating an interrupter by the output. CONSTITUTION:The overvoltage is detected by means of the overvoltage detecting circuit 13 through a voltage converter 7 at the both terminals of the smoothing capacitor 6 of the inverter, to whose DC input side the smoothing capacitor 6 is mounted and to whose AC output side the interrupter 2 is installed, an operating circuit 14 is worked by the detecting signals, and the interrupter 2 is interrupted and a circuit breaker 3 is tripped. Thus, since the overvoltage is detected in integral operation, voltage does not change rapidly, overvoltage can stably be detected, and the breakdown of parts due to reverse currents generated by the abnormality, etc. of an inverter gate control circuit in case of two parallel redundant operation of inverters can effectively be prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10720279A JPS5631376A (en) | 1979-08-24 | 1979-08-24 | Protective circuit for direct current overvoltage of inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10720279A JPS5631376A (en) | 1979-08-24 | 1979-08-24 | Protective circuit for direct current overvoltage of inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5631376A true JPS5631376A (en) | 1981-03-30 |
Family
ID=14453061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10720279A Pending JPS5631376A (en) | 1979-08-24 | 1979-08-24 | Protective circuit for direct current overvoltage of inverter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5631376A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0571657A2 (en) * | 1992-05-29 | 1993-12-01 | Mitsubishi Denki Kabushiki Kaisha | Inverter apparatus and inverter controlling method having fault protection |
-
1979
- 1979-08-24 JP JP10720279A patent/JPS5631376A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0571657A2 (en) * | 1992-05-29 | 1993-12-01 | Mitsubishi Denki Kabushiki Kaisha | Inverter apparatus and inverter controlling method having fault protection |
| EP0571657A3 (en) * | 1992-05-29 | 1994-06-08 | Mitsubishi Electric Corp | Inverter apparatus and inverter controlling method having fault protection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100270816B1 (en) | Frequency converter device | |
| SE8306967L (en) | POWER SUPPLY DEVICE FOR AN AC POWER CONSUMER | |
| GB1535984A (en) | Control arrangement for an inverter | |
| JPS5631376A (en) | Protective circuit for direct current overvoltage of inverter | |
| JPS53124741A (en) | Short protector for power converter with dc circuit | |
| JPS6439227A (en) | Short-circuit protective-device for inverter | |
| JPS5653578A (en) | Semiconductor power converter | |
| JPS5530237A (en) | Gate driver for gate turn-off thyristor | |
| JPS5619463A (en) | Electric load unit | |
| JPS56115180A (en) | Monitoring system of inverter operating in parallel | |
| JPS5577392A (en) | Controller for induction motor | |
| JPS57101572A (en) | Pwm inverter | |
| JPS648837A (en) | Ac no-break power unit | |
| JPS5773A (en) | Converter circuit in inverter | |
| JPS56157273A (en) | Power source | |
| JPS5694973A (en) | Inverter device | |
| JPS5722386A (en) | Inverter circuit | |
| JPS5778372A (en) | Voltage type inverter | |
| JPS56129579A (en) | Protecting circuit of current type inverter | |
| JPS56125965A (en) | Protection of ac-dc converter | |
| JPS5694971A (en) | Protective device for inverter | |
| JPS6469268A (en) | Inverter device | |
| JPS54134327A (en) | Suppressing overcurrent in inverter device | |
| JPS5445741A (en) | Control system of inverter | |
| JPS57173378A (en) | Operating method for inverter |