JPS579278A - Overvoltage protecting device for inverter - Google Patents
Overvoltage protecting device for inverterInfo
- Publication number
- JPS579278A JPS579278A JP8364680A JP8364680A JPS579278A JP S579278 A JPS579278 A JP S579278A JP 8364680 A JP8364680 A JP 8364680A JP 8364680 A JP8364680 A JP 8364680A JP S579278 A JPS579278 A JP S579278A
- Authority
- JP
- Japan
- Prior art keywords
- inverter
- capacitor
- transistor
- voltage
- output
- 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
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Stopping Of Electric Motors (AREA)
- Inverter Devices (AREA)
Abstract
PURPOSE:To enable the protection of an inverter against an overvoltage at the regeneratively braking time by detecting the rise of the DC side voltage of the inverter at the regeneratively braking time, operating a transistor and making a brake setting circuit ineffective. CONSTITUTION:Regenerative power corresponding to the brake torque of an induction motor 22 is fed back to the DC side of an inverter 21 at the regeneratively braking time, and a capacitor 36 is charged. When the charged voltage of the capacitor 36 reaches VH, the output of the DC voltage detector 37 becomes H, and a transistor 38 is conducted ON. The set brake torque setting unit of a torque limiter 35 is elminated by the ON of the transistor 38, the output of the speed regulator 23 is eliminated, the inverter 21 is interrupted OFF, the brake torque is eliminated, and the charging of the capacitor 36 is stopped. When the terminal voltage of the capacitor 36 is dropped lower than VL, the output of the detector 37 becomes L, the transistor 38 is interrupted OFF, the inverter 21 is again operated to become the regeneratively braking state, the charged voltage of the capacitor 36 is again raised, and the above operations are repeated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8364680A JPS579278A (en) | 1980-06-19 | 1980-06-19 | Overvoltage protecting device for inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8364680A JPS579278A (en) | 1980-06-19 | 1980-06-19 | Overvoltage protecting device for inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS579278A true JPS579278A (en) | 1982-01-18 |
Family
ID=13808207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8364680A Pending JPS579278A (en) | 1980-06-19 | 1980-06-19 | Overvoltage protecting device for inverter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS579278A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0178629A2 (en) * | 1984-10-17 | 1986-04-23 | Mitsubishi Denki Kabushiki Kaisha | Positioning indexing control device for inverter apparatus |
| JPS6285690A (en) * | 1985-10-08 | 1987-04-20 | Meidensha Electric Mfg Co Ltd | Overvoltage preventive circuit for inverter |
| US6713979B2 (en) * | 2001-07-26 | 2004-03-30 | Kabushiki Kaisha Sankyo Seiki Seisakusho | Actuator drive circuit |
| WO2006034318A1 (en) * | 2004-09-21 | 2006-03-30 | Honeywell International Inc. | Power converter controlling apparatus and method providing ride through capability during power interruption in a motor drive system |
| FR2891961A1 (en) * | 2005-10-07 | 2007-04-13 | Alstom Transport Sa | METHOD FOR MAINTAINING A VOLTAGE CONTINUOUS TO THE INPUT OF A CONTINUOUS-VOLTAGE ALTERNATIVE CONVERTER, RECORDING MEDIUM FOR THIS METHOD AND ELECTRIC VEHICLE |
| US7317292B2 (en) * | 2003-10-17 | 2008-01-08 | Kabushiki Kaisha Yaskawa Denki | AC motor control method and control device |
| CN107623465A (en) * | 2017-09-21 | 2018-01-23 | 中科新松有限公司 | A kind of braking method, brake unit and robot |
| EP3355463A1 (en) * | 2017-01-31 | 2018-08-01 | Goodrich Aerospace Services Private Limited | A method of applying brake to a hoist by electromagnetic means in a permanent magnet motor |
-
1980
- 1980-06-19 JP JP8364680A patent/JPS579278A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0178629A2 (en) * | 1984-10-17 | 1986-04-23 | Mitsubishi Denki Kabushiki Kaisha | Positioning indexing control device for inverter apparatus |
| JPS6285690A (en) * | 1985-10-08 | 1987-04-20 | Meidensha Electric Mfg Co Ltd | Overvoltage preventive circuit for inverter |
| US6713979B2 (en) * | 2001-07-26 | 2004-03-30 | Kabushiki Kaisha Sankyo Seiki Seisakusho | Actuator drive circuit |
| US7317292B2 (en) * | 2003-10-17 | 2008-01-08 | Kabushiki Kaisha Yaskawa Denki | AC motor control method and control device |
| WO2006034318A1 (en) * | 2004-09-21 | 2006-03-30 | Honeywell International Inc. | Power converter controlling apparatus and method providing ride through capability during power interruption in a motor drive system |
| FR2891961A1 (en) * | 2005-10-07 | 2007-04-13 | Alstom Transport Sa | METHOD FOR MAINTAINING A VOLTAGE CONTINUOUS TO THE INPUT OF A CONTINUOUS-VOLTAGE ALTERNATIVE CONVERTER, RECORDING MEDIUM FOR THIS METHOD AND ELECTRIC VEHICLE |
| EP1772953A3 (en) * | 2005-10-07 | 2008-04-09 | Alstom Transport S.A. | Method for maintaining the DC voltage at the input of a DC-AC voltage converter, storage means for this method and electric vehicle |
| NO336493B1 (en) * | 2005-10-07 | 2015-09-07 | Alstom Transp Tech | Method for maintaining a DC voltage at the input of a DC / AC converter, recording medium for the method and electric vehicle |
| EP3355463A1 (en) * | 2017-01-31 | 2018-08-01 | Goodrich Aerospace Services Private Limited | A method of applying brake to a hoist by electromagnetic means in a permanent magnet motor |
| US10501293B2 (en) | 2017-01-31 | 2019-12-10 | Goodrich Aerospace Services Private Limited | Method of applying brake to a hoist by electromagnetic means in a permanent magnet motor |
| CN107623465A (en) * | 2017-09-21 | 2018-01-23 | 中科新松有限公司 | A kind of braking method, brake unit and robot |
| CN107623465B (en) * | 2017-09-21 | 2020-04-14 | 中科新松有限公司 | Braking method, braking unit and robot |
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