CN118413057A - Water turbine generator set collecting ring temperature measurement system - Google Patents
Water turbine generator set collecting ring temperature measurement system Download PDFInfo
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- CN118413057A CN118413057A CN202410290523.8A CN202410290523A CN118413057A CN 118413057 A CN118413057 A CN 118413057A CN 202410290523 A CN202410290523 A CN 202410290523A CN 118413057 A CN118413057 A CN 118413057A
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- temperature
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- monitoring
- temperature sensor
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- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 6
- 238000012544 monitoring process Methods 0.000 claims abstract description 40
- 238000012423 maintenance Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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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
-
- 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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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The invention relates to the technical field of hydropower station temperature monitoring, in particular to an online temperature measurement system of a collecting ring of a hydroelectric generating set, which comprises the following components: temperature sensor: the temperature sensor is used for acquiring temperature signals on a collecting ring of the generator set; generator LCU cabinet: the temperature sensor comprises an analog quantity module, a control module and a control module, wherein the analog quantity module receives a temperature signal of the temperature sensor and converts the temperature signal into a digital signal for output; monitoring and data acquisition system: the system is used for analyzing and generating a temperature trend signal, an alarm signal and a stop signal; the upper computer: the system is used for receiving the temperature trend signals of the monitoring and data acquisition system and displaying a temperature trend graph and a temperature report; an alarm: the alarm device is used for receiving alarm signals of the monitoring and data acquisition system and executing alarm operation; and (3) a shutdown loop controller: the system is used for receiving the shutdown signal of the monitoring and data acquisition system, executing the shutdown operation can ensure the stable operation of the system, and sending out an alarm signal and executing the shutdown operation in time so as to ensure the safe operation of the hydropower station.
Description
Technical Field
The invention relates to the technical field of hydropower station temperature monitoring, in particular to a hydroelectric generating set collecting ring temperature measuring system.
Background
The on-line temperature measuring device for the generator collecting ring is mainly used for monitoring and controlling the temperature of the generator collecting ring and is an important part for connecting a generator rotor with an external circuit, the temperature of the generator collecting ring can be monitored in real time through the on-line temperature measuring device for a case, and data of the temperature can be transmitted to a monitoring system, so that an operator can timely grasp the change condition of the temperature of the collecting ring, and adjust and control the temperature according to the real-time data, thereby ensuring the normal operation of the collecting ring and prolonging the service life of the collecting ring.
Conventionally, an independent host is used as acquisition equipment of an online temperature measuring device of a generator collecting ring, and the following defects exist:
1: the cost is higher: the independent host needs to be purchased and maintained independently, so that the cost is increased, and the independent host needs to be installed and wired independently, so that the complexity and difficulty of installation are increased;
2: maintenance and management are complex: the independent host needs to be maintained and managed independently, so that the requirement on maintenance personnel is high, and the maintenance difficulty and the workload are increased;
3: inconvenient centralized management of data: the data collected by the independent host computer needs to be transmitted and managed separately, so that the centralized management and analysis of the data are inconvenient.
In view of the foregoing, there is a need for a temperature measurement system for a collecting ring of a water turbine generator set, which can centrally manage data, reduce difficulty in system maintenance and management, and reduce installation and wiring costs.
Disclosure of Invention
The invention provides a collecting ring temperature measuring system of a hydroelectric generating set, which is used for solving the problems that an online temperature measuring device of a collecting ring of a generator adopts an independent host, and the collecting ring temperature measuring system is high in success, complex in maintenance and management and inconvenient in data centralized management.
The invention relates to a temperature measurement system of a collecting ring of a hydroelectric generating set, which is characterized by comprising the following components:
a hydroelectric set collecting ring temperature measurement system, characterized by comprising:
Temperature sensor: the temperature sensor is arranged on the collecting ring of the generator set and used for collecting temperature signals on the collecting ring of the generator set;
generator LCU cabinet: the temperature sensor comprises an analog quantity module, a control module and a control module, wherein the analog quantity module receives a temperature signal of the temperature sensor and converts the temperature signal into a digital signal for output;
monitoring and data acquisition system: the system comprises an analog quantity module, a temperature trend signal, an alarm signal and a stop signal, wherein the analog quantity module is used for receiving a digital signal output by the analog quantity module and analyzing and generating the temperature trend signal, the alarm signal and the stop signal;
The upper computer: the system is used for receiving the temperature trend signals of the monitoring and data acquisition system and displaying a temperature trend graph and a temperature report;
an alarm: the alarm device is used for receiving alarm signals of the monitoring and data acquisition system and executing alarm operation;
And (3) a shutdown loop controller: and the system is used for receiving the shutdown signal of the monitoring and data acquisition system and executing shutdown operation.
Further, the temperature sensor is an infrared temperature sensor.
Further, at least one infrared temperature sensor is arranged on the upper ring and the lower ring of the collecting ring of the generator set.
The beneficial effects of the invention include:
The temperature sensor collects temperature signals on a collecting ring of the generator set, converts the temperature signals into digital signals to be output by means of an analog quantity module of an LCU cabinet of the generator, receives the digital signals output by the analog quantity module through the monitoring and data collecting system, monitors and analyzes the received digital signals to generate temperature trend signals, alarm signals and stop signals, and the upper computer receives the temperature trend signals of the monitoring and data collecting system and displays a temperature trend graph; the alarm receives alarm signals of the monitoring and data acquisition system; and (3) a shutdown loop controller: the shutdown signal of the monitoring and data acquisition system is received, so that the cost is low, the implementation is convenient, and the maintenance is simple; the principle of realizing seamless connection between the monitoring and data acquisition system and the alarming and stopping loop of the hydropower station is that the monitoring system is real-time and reliable, the monitoring system can acquire data of a temperature sensor in real time and timely respond and control the running state of the hydropower station through the alarming and stopping loop, meanwhile, the monitoring system has high reliability and fault tolerance, can ensure stable running of the system, timely sends out alarming signals and executes stopping operation, so that safe running of the hydropower station is ensured.
Drawings
FIG. 1 is a block diagram of a system for measuring temperature of a slip ring of a hydroelectric generating set according to the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present application.
As shown in fig. 1, the invention relates to a temperature measurement system for a collecting ring of a water turbine generator set, which is characterized by comprising:
Temperature sensor: the temperature sensor is arranged on the collecting ring of the generator set and used for collecting temperature signals on the collecting ring of the generator set;
generator LCU cabinet: the temperature sensor comprises an analog quantity module, a control module and a control module, wherein the analog quantity module receives a temperature signal of the temperature sensor and converts the temperature signal into a digital signal for output;
monitoring and data acquisition system: the system comprises an analog quantity module, a temperature trend signal, an alarm signal and a stop signal, wherein the analog quantity module is used for receiving a digital signal output by the analog quantity module and analyzing and generating the temperature trend signal, the alarm signal and the stop signal;
The upper computer: the system is used for receiving the temperature trend signals of the monitoring and data acquisition system and displaying a temperature trend graph and a temperature report;
an alarm: the alarm device is used for receiving alarm signals of the monitoring and data acquisition system and executing alarm operation;
And (3) a shutdown loop controller: and the system is used for receiving the shutdown signal of the monitoring and data acquisition system and executing shutdown operation.
Further, the temperature sensor is an infrared temperature sensor.
Further, at least one infrared temperature sensor is arranged on the upper ring and the lower ring of the collecting ring of the generator set.
At present, an infrared temperature measurement sensor is widely applied to the field of temperature measurement of fixed point positions, although a collecting ring of a generator set is a rotating object, the collecting ring room belongs to a strong electric field, the temperature reliability of the collecting ring is not high in online measurement, and jump phenomenon occurs in temperature. The invention selects a novel infrared temperature measuring sensor with anti-interference and quick response time and 4-20mA analog output to solve the problem;
The real-time temperatures of the upper ring and the lower ring of the collecting ring are collected by using an analog quantity module of the generator LCU cabinet, 4-20mA current signals collected by the generator LCU cabinet can be displayed on a touch screen of the local generator LCU cabinet and a man-machine interface of an upper computer after being processed by a monitoring system, and the historical data of the upper ring temperature and the lower ring temperature of the collecting ring of the generator set can be also inquired by the upper computer;
The monitoring system compares the collected real-time data of the temperatures of the upper ring and the lower ring of the collecting ring with a set value of high alarm of the temperature of the collecting ring, and sends out an alarm signal of overhigh temperature of the collecting ring when the parameters are over limit, so as to remind operation and maintenance personnel to check, analyze and strengthen monitoring on site; even the high alarm of the temperature of the collecting ring can be set, and the mechanical accident shutdown process is started;
The collected active power, reactive power, upper ring temperature and lower ring temperature of the collecting ring of the generator set can be automatically generated at regular time by utilizing the report function of the monitoring system, so that the report and the temperature change trend of the upper ring and the lower ring of the collecting ring are convenient for the professional to analyze and judge the occurrence time and the process of faults.
The system comprises: the temperature sensor is used for collecting temperature signals on the upper ring and the lower ring of the collecting ring of the generator set; the generator LCU cabinet comprises an analog quantity module, wherein the analog quantity module receives a temperature signal of a temperature sensor and converts the temperature signal into a digital signal; monitoring and data acquisition system: the system comprises an analog quantity module, a temperature trend signal acquisition module and a shutdown signal acquisition module, wherein the analog quantity module is used for acquiring a digital signal output by the analog quantity module, and monitoring and analyzing the received digital signal to generate a temperature trend signal, an alarm signal and a shutdown signal; when the temperature monitored in real time exceeds a preset shutdown alarm value, a shutdown loop controller automatically sends a shutdown signal to a shutdown loop; the monitoring and data acquisition system acquires active power, reactive power, exciting current and exciting voltage signals of the generator; the upper computer is used for displaying the temperature trend graphs of the upper ring and the lower ring of the collecting ring and generating a temperature report; the monitoring and data acquisition system has high reliability and fault tolerance, can ensure the stable operation of the system, and sends an alarm signal through an alarm in time so as to ensure the safe operation of the hydropower station; the principle of realizing seamless connection between the monitoring and data acquisition system and the alarming and stopping loop of the hydropower station is that the monitoring system is real-time and reliable, the monitoring system can acquire data of a temperature sensor in real time and timely respond and control the running state of the hydropower station through the alarming and stopping loop, meanwhile, the monitoring system has high reliability and fault tolerance, can ensure stable running of the system, timely sends out alarming signals and executes stopping operation, so that safe running of the hydropower station is ensured.
The above examples merely illustrate specific embodiments of the application, which are described in more detail and are not to be construed as limiting the scope of the application. It should be noted that, for those skilled in the art, it is possible to make related modifications and improvements without departing from the technical idea of the application, which fall within the protection scope of the application.
Claims (3)
1. A hydroelectric set collecting ring temperature measurement system, characterized by comprising:
Temperature sensor: the temperature sensor is arranged on the collecting ring of the generator set and used for collecting temperature signals on the collecting ring of the generator set;
generator LCU cabinet: the temperature sensor comprises an analog quantity module, a control module and a control module, wherein the analog quantity module receives a temperature signal of the temperature sensor and converts the temperature signal into a digital signal for output;
monitoring and data acquisition system: the system comprises an analog quantity module, a temperature trend signal, an alarm signal and a stop signal, wherein the analog quantity module is used for receiving a digital signal output by the analog quantity module and analyzing and generating the temperature trend signal, the alarm signal and the stop signal;
The upper computer: the system is used for receiving the temperature trend signals of the monitoring and data acquisition system and displaying a temperature trend graph and a temperature report;
an alarm: the alarm device is used for receiving alarm signals of the monitoring and data acquisition system and executing alarm operation;
And (3) a shutdown loop controller: and the system is used for receiving the shutdown signal of the monitoring and data acquisition system and executing shutdown operation.
2. The water turbine generator set collector ring temperature measurement system of claim 1, wherein: the temperature sensor is an infrared temperature sensor.
3. The water turbine generator set collector ring temperature measurement system of claim 1, wherein: and at least one infrared temperature sensor is arranged on the upper ring and the lower ring of the collecting ring of the generator set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410290523.8A CN118413057A (en) | 2024-03-14 | 2024-03-14 | Water turbine generator set collecting ring temperature measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410290523.8A CN118413057A (en) | 2024-03-14 | 2024-03-14 | Water turbine generator set collecting ring temperature measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118413057A true CN118413057A (en) | 2024-07-30 |
Family
ID=91982018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410290523.8A Pending CN118413057A (en) | 2024-03-14 | 2024-03-14 | Water turbine generator set collecting ring temperature measurement system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118413057A (en) |
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2024
- 2024-03-14 CN CN202410290523.8A patent/CN118413057A/en active Pending
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