CN113340434A - Infrared temperature measurement system for end part of generator motor rotor - Google Patents
Infrared temperature measurement system for end part of generator motor rotor Download PDFInfo
- Publication number
- CN113340434A CN113340434A CN202110811182.0A CN202110811182A CN113340434A CN 113340434 A CN113340434 A CN 113340434A CN 202110811182 A CN202110811182 A CN 202110811182A CN 113340434 A CN113340434 A CN 113340434A
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- motor rotor
- generator motor
- temperature
- control computer
- main control
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- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 14
- 238000007689 inspection Methods 0.000 claims abstract description 5
- 230000000007 visual effect Effects 0.000 claims description 3
- 239000011324 bead Substances 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 5
- 230000026676 system process Effects 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 description 9
- 230000002159 abnormal effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0096—Radiation pyrometry, e.g. infrared or optical thermometry for measuring wires, electrical contacts or electronic systems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/25—Devices for sensing temperature, or actuated thereby
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J2005/0077—Imaging
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
Abstract
The invention discloses an infrared temperature measurement system for the end part of a generator motor rotor, which consists of a main control computer, an infrared thermal imager, a speed measurement fluted disc and a key phase sensor; when the generating motor operates, the main shaft drives the speed measuring fluted disc to rotate, the key phase sensor generates position and rotating speed signals, the main control computer reads the signals of the key phase sensor, so that the position of a motor rotor is determined, the infrared thermal imager is controlled to shoot, the temperature data of the end part of the magnetic pole is recorded, the infrared thermal imager transmits the measured data to the main control computer, the big data system processes, displays and analyzes the temperature data of key components, and sends alarm information of different levels according to the temperature fluctuation condition after the temperature of a certain position is found to be abnormally fluctuated, the running personnel of the generating motor is reminded to carry out related inspection, further accidents are prevented, and the safe operation of the generating motor is guaranteed.
Description
Technical Field
The invention relates to the field of generator motors, in particular to an infrared temperature measurement system for monitoring the temperature of the end part of a rotor of a generator motor.
Background
The generator-motor mainly is applied to the pumped storage power station, plays the effect of filling a valley peak-load in electric power system, and domestic pumped storage power station is more and more at present, and the capacity is more and more big, and the rotational speed is also more and more high, compares with conventional hydraulic generator, and pumped storage unit need often move and the conversion under two kinds of operating modes of generator and motor, opens and stops frequently, and this can lead to some problems often appear in generator-motor rotating part's electrical structure part, for example: the connection wire is loose of the fastening bolt, the electrical connecting piece is connected in a virtual mode, and the like, so that major accidents such as electric component melting and the like can be caused in the serious case, but before the accidents occur, the contact resistance at the positions can be changed, the abnormal fluctuation of the temperature is further caused, the temperature monitoring system at the end part of the rotor of the generator motor is established, the early warning can be carried out on the mechanical fault, at present, the method for monitoring the temperature on the rotor is very few, and the problems of power supply and signal transmission cannot be solved.
Disclosure of Invention
In view of the above, the present invention discloses an infrared temperature measurement system for monitoring the temperature of key components at the end of a generator motor rotor, and the technical scheme of the present invention is as follows:
the speed measuring fluted disc is installed on the main shaft and rotates along with the main shaft, the key phase sensor measures the rotating position and the rotating speed of the main shaft through the speed measuring fluted disc, the key phase sensor is connected with the main control computer through signals, the infrared thermal imager is installed below the wind shield of the rotor and is opposite to the magnetic pole of the rotor of the motor, and the main control computer is connected with the infrared thermal imager and transmits information with the infrared thermal imager.
In the infrared temperature measurement system for the end part of the generator motor rotor, the key phase sensor obtains a rotation position signal and a rotation speed pulse signal of the main shaft through the speed measuring fluted disc and transmits the rotation position signal and the rotation speed pulse signal to the main control computer, and the main control computer calculates the moment when each motor rotor magnetic pole enters the visual field of the infrared thermal imager through the rotation position signal and the rotation speed pulse signal of the generator motor main shaft obtained from the key phase sensor and controls the infrared thermal imager to shoot temperature images of the end part of the motor rotor magnetic pole.
In the generator motor rotor end infrared temperature measurement system, the infrared thermal imager transmits the temperature image data of the motor rotor magnetic pole end to the database of the main control computer.
In the infrared temperature measurement system for the end part of the rotor of the generator motor, the temperature image data of the end part of the magnetic pole of the rotor of the generator motor is processed, displayed and analyzed by a big data system in a main control computer, and when abnormal fluctuation of temperature at a certain position is found, the big data system sends alarm information of different levels according to the temperature fluctuation condition to remind operators of the generator motor to carry out related inspection, so that further accidents are prevented, and safety operation of the generator motor is guaranteed.
The invention has the beneficial effects that:
the temperature monitoring system adopts a non-contact installation mode, does not need to install any sensor on the surface of the measured object, prevents the sensor from influencing the measured object, and simultaneously, the monitoring system does not need to rotate along with the rotating part, thereby solving the problems of power supply and signal transmission in the online monitoring of the rotating part.
The invention can monitor the temperature of key components at the magnetic pole end part of the rotor of the generator motor rotating at high speed in real time, the big data system can analyze the trend of multipoint temperature, find the position of abnormal temperature fluctuation, send alarm information of different grades according to the temperature fluctuation condition, remind the operators of the generator motor to carry out related inspection, prevent further accidents and provide guarantee for the safe operation of the generator motor.
Drawings
FIG. 1 is a schematic structural diagram of an infrared temperature measurement system at the end part of a generator motor rotor.
Description of reference numerals: 1-main shaft of rotor of generator motor, 2-speed measuring fluted disc, 3-key phase sensor, 4-rotor magnetic pole, 5-main control computer and 6-infrared thermal imager
Detailed Description
As shown in fig. 1, a generator motor rotor end infrared temperature measurement system for monitoring the temperature of the generator motor rotor end, a speed measurement fluted disc 2 is installed on a generator motor rotor spindle 1, a key phase sensor 3 is installed at a corresponding position of the speed measurement fluted disc 2, an infrared thermal imager 6 is installed below a generator motor rotor wind shield 7 and does not rotate along with the spindle 1, when a motor operates, the spindle 1 drives the speed measurement fluted disc 2 to rotate, the key phase sensor 3 can generate a rotation position signal and a speed pulse signal of the spindle through the speed measurement fluted disc 2, and a main control computer 5 calculates the time when each rotor magnetic pole 4 enters the visual field of the infrared thermal imager 6 through the rotation position signal and the rotation speed pulse signal of the generator motor spindle 1 obtained from the key phase sensor 3 and controls the infrared thermal imager 6 to shoot the temperature image of the end of the magnetic pole 4. The temperature image data of the infrared thermal imager 6 is transmitted to the main control computer 5, the temperature data of the end part of each magnetic pole 4 is completely recorded, all the data are synthesized into a rotor end temperature image by the big data system, then the temperature data of key components are processed, stored, displayed and analyzed, the temperature change trend analysis is carried out, after the temperature abnormal fluctuation of a certain position is found, the big data system sends alarm information of different levels according to the temperature fluctuation condition, a generator motor operator is reminded to carry out related inspection, further accidents are prevented, and the safe operation of the generator motor is guaranteed.
The invention can collect temperature data of key parts at the end part of the rotor of the generator motor rotating at high speed, perform long-term online monitoring on the end part of a magnetic pole coil of the rotor of the generator motor, a magnetic pole connecting wire, a damping strip connecting sheet and other parts, analyze the change trend of temperature, immediately start an alarm process when abnormal temperature fluctuation is found, and prevent serious accidents from happening.
Finally, the scope of protection of the invention is not limited to the embodiments described above. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (4)
1. The utility model provides an infrared temperature measurement system of generator motor rotor tip which characterized in that: install on main shaft (1) fluted disc (2) tests the speed, rotate along with main shaft (1), the rotational position and the rotational speed of main shaft (1) are measured through measuring speed fluted disc (2) in key phase sensor (3), key phase sensor (3) signal access main control computer (5), install in rotor deep bead (7) below infrared thermal imager (6), the position is just to motor rotor magnetic pole (4), main control computer (5) are connected with infrared thermal imager (6), carry out information transmission with infrared thermal imager (6).
2. The generator motor rotor end infrared temperature measurement system of claim 1, characterized in that: the key phase sensor (3) obtains a rotating position signal and a rotating speed pulse signal of the main shaft (1) through the speed measuring fluted disc (2) and transmits the signals to the main control computer (5), the main control computer (5) calculates the moment when each motor rotor magnetic pole (4) enters the visual field of the infrared thermal imager (6) through the rotating position signal and the rotating speed pulse signal of the generator motor main shaft (1) obtained from the key phase sensor (3), and controls the infrared thermal imager (6) to shoot temperature images of the end parts of the motor rotor magnetic poles (4).
3. The generator motor rotor end infrared temperature measurement system of claim 1, characterized in that: and the infrared thermal imager (6) transmits the temperature image data of the end part of the motor rotor magnetic pole (4) to a database of the main control computer (5).
4. The generator motor rotor end infrared temperature measurement system of claim 1, characterized in that: the temperature image data of the magnetic pole end part of the generator motor rotor is processed, displayed and analyzed by a big data system in a main control computer (5), when the temperature of a certain position is found to fluctuate abnormally, the big data system sends alarm information of different levels according to the temperature fluctuation condition, a generator motor operator is reminded to carry out related inspection, further accidents are prevented, and the safe operation of the generator motor is guaranteed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110811182.0A CN113340434A (en) | 2021-07-19 | 2021-07-19 | Infrared temperature measurement system for end part of generator motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110811182.0A CN113340434A (en) | 2021-07-19 | 2021-07-19 | Infrared temperature measurement system for end part of generator motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113340434A true CN113340434A (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110811182.0A Pending CN113340434A (en) | 2021-07-19 | 2021-07-19 | Infrared temperature measurement system for end part of generator motor rotor |
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| CN (1) | CN113340434A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114441049A (en) * | 2022-02-10 | 2022-05-06 | 山东钢铁股份有限公司 | Real-time temperature monitoring device for synchronous motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750148A (en) * | 2009-12-31 | 2010-06-23 | 贵阳新光电气有限公司 | On-line monitoring and positioning method for temperature of junction plates of pole coil of rotor of electric generator |
| CN202057420U (en) * | 2011-04-08 | 2011-11-30 | 云峰发电厂 | Non-contact temperature measuring device for rotor of hydraulic generator |
| CN109253806A (en) * | 2018-11-01 | 2019-01-22 | 长沙龙力自控技术有限公司 | A kind of rotor non-contact temperature measuring device |
| CN210322013U (en) * | 2019-10-10 | 2020-04-14 | 哈尔滨电机厂有限责任公司 | Be applicable to infrared temperature measurement structure of power station generator rotor |
-
2021
- 2021-07-19 CN CN202110811182.0A patent/CN113340434A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750148A (en) * | 2009-12-31 | 2010-06-23 | 贵阳新光电气有限公司 | On-line monitoring and positioning method for temperature of junction plates of pole coil of rotor of electric generator |
| CN202057420U (en) * | 2011-04-08 | 2011-11-30 | 云峰发电厂 | Non-contact temperature measuring device for rotor of hydraulic generator |
| CN109253806A (en) * | 2018-11-01 | 2019-01-22 | 长沙龙力自控技术有限公司 | A kind of rotor non-contact temperature measuring device |
| CN210322013U (en) * | 2019-10-10 | 2020-04-14 | 哈尔滨电机厂有限责任公司 | Be applicable to infrared temperature measurement structure of power station generator rotor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114441049A (en) * | 2022-02-10 | 2022-05-06 | 山东钢铁股份有限公司 | Real-time temperature monitoring device for synchronous motor |
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