CN101750148A - On-line monitoring and positioning method for temperature of junction plates of pole coil of rotor of electric generator - Google Patents
On-line monitoring and positioning method for temperature of junction plates of pole coil of rotor of electric generator Download PDFInfo
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- CN101750148A CN101750148A CN200910215681A CN200910215681A CN101750148A CN 101750148 A CN101750148 A CN 101750148A CN 200910215681 A CN200910215681 A CN 200910215681A CN 200910215681 A CN200910215681 A CN 200910215681A CN 101750148 A CN101750148 A CN 101750148A
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- web joint
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Abstract
The invention discloses an on-line monitoring and positioning method for the temperature of junction plates of a pole coil of a rotor of an electric generator, belonging to a method for preventing the rotor of the electric generator from going wrong, and aiming at providing a method for instantly monitoring the temperature status of the junction plates of the pole coil of the rotor and confirming the positions of the fault junction plates. The method more particularly comprises the steps of: numbering the sequence of the junction plates of the pole coil of the rotor; installing infrared temperature detecting probes aligning to the positions of the junction plates; and installing phase discrimination sensors on the large shaft of the rotor corresponding to the positions of some junction plates. The sensors instantly collects position signals of each junction plate and transmitting the signals to a monitoring device; the infrared temperature detecting probes instantly collect the temperature of the junction plates and transmitting the temperature status to the monitoring device; and the monitoring device compares the temperature of each junction plate with a preset temperature whole value and judges to alarm and display the numbers of the fault junction plates. The method guarantees the running security of the electric generator, reduces the searching time of fault points, and is an ideal method for preventing the junction plates of the rotor of the electric generator from going wrong.
Description
Technical field: the present invention relates to a kind of method of protecting generator, relate in particular to a kind of method of preventing generator amature to break down.
Background technology: well-known, generator amature has some pole coils, connects by web joint between each pole coil, and the electric current that flows through on each web joint is up to several kiloamperes.Because the influence of being installed, overhauling technology, unit vibration, usually cause that web joint loose contact, contact resistance increase, the web joint temperature is too high, jeopardize the generator safe operation.Because rotor is a slewing, can't monitor the temperature that is in operating junction plates of pole coil at present, therefore there is great potential safety hazard.
Summary of the invention: at the above-mentioned defective that exists in the prior art, the present invention aims to provide a kind of on-line monitoring and positioning method for temperature of junction plates of pole coil of rotor of electric generator, utilize this method can monitor the temperature of junction plates of pole coil of rotor of electric generator in real time, determine the position of fault web joint.
To achieve these goals, method provided by the present invention by the following technical solutions: it comprises data acquisition, logic determines and data output; Concrete grammar is:
1) with the web joint serial number of the whole pole coils of generator amature, in the position of aiming at web joint an infrared temperature probe is set, the position corresponding to certain web joint on the rotor macro-axis is provided with a phase demodulation sensor;
2) the phase demodulation sensor is gathered the position signalling of each web joint in real time successively, and successively this position signalling is sent to monitoring device; Simultaneously, infrared temperature probe is gathered the web joint temperature of reference numeral in real time successively, successively this temperature signal is sent to described monitoring device then, and the temperature of web joint is respectively numbered in demonstration in real time;
3) monitoring device compares the temperature and the predefined temperature setting valve of each web joint, if the temperature of certain web joint is higher than this temperature setting valve, monitoring device sends alerting signal, shows the numbering of this web joint.
Compared with the prior art, therefore the present invention can monitor the temperature of junction plates of pole coil of rotor of electric generator in real time owing to adopted technique scheme, accurately judges the position of fault web joint, thereby can in time find and get rid of fault; Not only can guarantee the security of operation of generator, and reduce the trouble spot and searched the time, improved the economic benefit of power plant.
Description of drawings:
Fig. 1 is the annexation figure of generator amature and monitoring device.
Among the figure: web joint 1 pole coil 2 rotor macro-axis 3 infrared temperature probes 4 phase demodulation sensors 5 monitoring devices 6
Embodiment: the invention will be further described below in conjunction with the drawings and specific embodiments:
1) will be connected web joint 1 serial number between each pole coil 2 of generator amature, the position of aiming at web joint 1 on frame is provided with an infrared temperature probe 4, and the position corresponding to certain web joint 1 on rotor macro-axis 3 is provided with a phase demodulation sensor 5;
2) phase demodulation sensor 5 is gathered the position signalling of each web joint 1 in real time successively, and successively this position signalling is sent to monitoring device 6 by cable; Simultaneously, web joint 1 temperature that infrared temperature probe 4 is gathered reference numeral in real time successively is sent to monitoring device 6 with this temperature signal by cable successively, and the temperature of web joint 1 is respectively numbered in demonstration in real time;
3) monitoring device 6 compares the temperature and the predefined temperature setting valve of each numbering web joint 1, if the temperature of certain piece web joint is higher than this temperature setting valve, monitoring device 6 sends the high temperature alarm signal, and shows the numbering of this web joint 1 automatically.
Claims (1)
1. an on-line monitoring and positioning method for temperature of junction plates of pole coil of rotor of electric generator comprises data acquisition, logic determines and data output; It is characterized in that:
1) with the web joint serial number of the whole pole coils of generator amature, in the position of aiming at web joint an infrared temperature probe is set, the position corresponding to certain web joint on the rotor macro-axis is provided with a phase demodulation sensor;
2) the phase demodulation sensor is gathered the position signalling of each web joint in real time successively, and successively this position signalling is sent to monitoring device; Simultaneously, infrared temperature probe is gathered the web joint temperature of reference numeral in real time successively, successively this temperature signal is sent to described monitoring device, and the temperature of web joint is respectively numbered in demonstration in real time;
3) monitoring device compares the temperature and the predefined temperature setting valve of each web joint, if the temperature of certain web joint is higher than this temperature setting valve, monitoring device sends alerting signal, shows the numbering of this web joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910215681A CN101750148A (en) | 2009-12-31 | 2009-12-31 | On-line monitoring and positioning method for temperature of junction plates of pole coil of rotor of electric generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910215681A CN101750148A (en) | 2009-12-31 | 2009-12-31 | On-line monitoring and positioning method for temperature of junction plates of pole coil of rotor of electric generator |
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| Publication Number | Publication Date |
|---|---|
| CN101750148A true CN101750148A (en) | 2010-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910215681A Pending CN101750148A (en) | 2009-12-31 | 2009-12-31 | On-line monitoring and positioning method for temperature of junction plates of pole coil of rotor of electric generator |
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| CN (1) | CN101750148A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592040A (en) * | 2012-08-15 | 2014-02-19 | 广东核电合营有限公司 | Method and system for monitoring temperature of generator stator winding of nuclear power station |
| CN104932028A (en) * | 2015-06-11 | 2015-09-23 | 深圳市金立通信设备有限公司 | Terminal positioning method and terminal |
| CN106405315A (en) * | 2016-08-26 | 2017-02-15 | 中车株洲电机有限公司 | Motor stator winding fault detection method |
| CN106992693A (en) * | 2017-05-18 | 2017-07-28 | 哈尔滨电机厂有限责任公司 | Large-scale generator rotor temperature online monitoring system high-insulativity electric supply installation preparation technology |
| CN107764404A (en) * | 2017-10-09 | 2018-03-06 | 西华大学 | A kind of scaled bulb tubular hydraulic generator Damper Winding broken bar fault on-line monitoring method |
| CN107764403A (en) * | 2017-10-09 | 2018-03-06 | 成都市格林菲勒科技有限公司 | A kind of Generator Rotor Temperature monitoring method |
| CN113340434A (en) * | 2021-07-19 | 2021-09-03 | 哈尔滨电机厂有限责任公司 | Infrared temperature measurement system for end part of generator motor rotor |
-
2009
- 2009-12-31 CN CN200910215681A patent/CN101750148A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592040A (en) * | 2012-08-15 | 2014-02-19 | 广东核电合营有限公司 | Method and system for monitoring temperature of generator stator winding of nuclear power station |
| CN103592040B (en) * | 2012-08-15 | 2016-02-03 | 广东核电合营有限公司 | A kind of temperature monitoring method of generator of nuclear power station stator winding and system |
| CN104932028A (en) * | 2015-06-11 | 2015-09-23 | 深圳市金立通信设备有限公司 | Terminal positioning method and terminal |
| CN106405315A (en) * | 2016-08-26 | 2017-02-15 | 中车株洲电机有限公司 | Motor stator winding fault detection method |
| CN106405315B (en) * | 2016-08-26 | 2019-02-19 | 中车株洲电机有限公司 | A kind of motor stator winding fault detection method |
| CN106992693A (en) * | 2017-05-18 | 2017-07-28 | 哈尔滨电机厂有限责任公司 | Large-scale generator rotor temperature online monitoring system high-insulativity electric supply installation preparation technology |
| CN106992693B (en) * | 2017-05-18 | 2019-03-15 | 哈尔滨电机厂有限责任公司 | Large-scale generator rotor temperature online monitoring system high-insulativity power supply unit preparation process |
| CN107764404A (en) * | 2017-10-09 | 2018-03-06 | 西华大学 | A kind of scaled bulb tubular hydraulic generator Damper Winding broken bar fault on-line monitoring method |
| CN107764403A (en) * | 2017-10-09 | 2018-03-06 | 成都市格林菲勒科技有限公司 | A kind of Generator Rotor Temperature monitoring method |
| CN113340434A (en) * | 2021-07-19 | 2021-09-03 | 哈尔滨电机厂有限责任公司 | Infrared temperature measurement system for end part of generator motor rotor |
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Open date: 20100623 |