CN110806769A - Overtemperature early warning device and method for open-type isolating switch - Google Patents
Overtemperature early warning device and method for open-type isolating switch Download PDFInfo
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- CN110806769A CN110806769A CN201911161470.5A CN201911161470A CN110806769A CN 110806769 A CN110806769 A CN 110806769A CN 201911161470 A CN201911161470 A CN 201911161470A CN 110806769 A CN110806769 A CN 110806769A
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- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
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Abstract
The invention discloses an overtemperature early warning device and method for an open-type isolating switch, which can monitor in real time and alarm in time, have high automation degree and save manpower. The device comprises a data acquisition module and a data processing module. The data acquisition module comprises three subunits, namely a data acquisition unit, a data transmission unit and a data receiving unit; the data acquisition unit is a temperature sensor, the temperature sensor is arranged at a contact of the isolating switch, acquired information is sent to the data transmission unit arranged on a basic framework of the isolating switch through radio waves, the data transmission unit collects the information of a plurality of temperature sensors at intervals where the isolating switch is arranged and then sends the collected information to the digital relay station of the data receiving unit through the radio waves, and the digital relay station of the data receiving unit collects a plurality of data transmitted at intervals and then sends the collected data to the data analysis unit of the data processing module; the data processing module comprises a data analysis unit and a human-computer interaction unit.
Description
Technical Field
The invention relates to a temperature monitoring device for an isolating switch, which is particularly used for temperature monitoring and alarming of an isolating switch of a transformer substation.
Background
At present, the monitoring method for the temperature of the isolating switch mainly utilizes infrared heat radiation to judge the temperature of equipment, and mainstream products comprise a fixed infrared temperature measurement camera, a transformer substation intelligent inspection robot, a thermal infrared imager and the like. The fixed infrared temperature measurement camera has the defects of single measurement angle, low measurement accuracy and need of manual regular data monitoring and analysis; the intelligent inspection robot of the transformer substation is greatly influenced by severe weather and terrain environment, the installation cost is too high, the measurement angle is limited by a track, and all-weather monitoring cannot be realized; the infrared thermal imager has the defects that the infrared thermal imager can only measure the current condition, cannot realize real-time monitoring, and cannot perform early warning response aiming at the specific heating condition, and the responsibility of an inspection worker, the inspection time interval, the measurement angle and the measurement position are extremely difficult to master in the inspection process.
Disclosure of Invention
The invention aims to solve the technical problem of providing an overtemperature early warning device and method for an open-type isolating switch, aiming at the defects in the prior art, and the overtemperature early warning device and method can monitor and alarm in real time, have high automation degree, save manpower and effectively reduce the power failure detection times of a transformer substation.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
the open-type disconnecting switch overtemperature early warning device is used for monitoring the temperature of the disconnecting switch of the transformer substation; comprises a data acquisition module and a data processing module.
The data acquisition module comprises three subunits, namely a data acquisition unit, a data transmission unit and a data receiving unit; the data acquisition unit is a temperature sensor, the temperature sensor is arranged at a contact of the isolating switch, acquired information is sent to the data transmission unit arranged on a basic framework of the isolating switch through radio waves, the data transmission unit collects the information of a plurality of temperature sensors at intervals where the isolating switch is arranged and then sends the collected information to the digital relay station of the data receiving unit through the radio waves, and the digital relay station of the data receiving unit collects a plurality of data transmitted at intervals and then sends the collected data to the data analysis unit of the data processing module;
the data processing module comprises a data analysis unit and a human-computer interaction unit. The data analysis unit singlechip analyzes, processes and judges the data of the data acquisition module, displays the result through a liquid crystal screen of the man-machine interaction unit, and sends a short message to the mobile phone end.
As a preferred embodiment of the present invention: the temperature sensor is a temperature difference electricity-taking temperature sensor.
As a preferred embodiment of the present invention: the data acquisition unit adopts a Zhuhai one-more TP-K01 type temperature sensor to finish temperature data acquisition; the data transmission unit completes wireless transmission of data by adopting a ZigBee technology; the data receiving unit adopts an SZ05-L-PRO-3 data transmission module of the boat science and technology company to complete wireless receiving of data; the data analysis unit is realized by adopting an MSP 430F 149 single chip microcomputer to complete the processing and analysis of data; the man-machine interaction unit realizes man-machine interaction of an upper computer and a lower computer by adopting an association LI22-41WD liquid crystal display and MATLAB software programming, and realizes short message warning by adopting a Ningbo Xin GFM900A short message module.
The invention also discloses an overtemperature early warning method for the open-type isolating switch, which adopts any one of the devices to execute the following steps:
(1) starting initialization; sequentially finishing the initialization of the MCU, the initialization of the temperature measuring module, the initialization of the wireless transmitting module and the initialization of the wireless receiving module; the temperature measuring module is a temperature sensor;
(2) measuring the temperature; the temperature sensor measures temperature, and the MCU reads the temperature of the temperature sensor and stores the temperature in the register;
(3) initializing a UART;
(4) the MCU sends data to the FIFO and waits for the end of the current sending task;
(5) the wireless sending module sends data;
(6) the wireless receiving module receives data;
(7) the MCU reads the temperature from the UxBUF and displays the temperature to the upper computer;
(8) and finishing the temperature measuring process.
As a preferred embodiment of the method disclosed by the present invention: and a step of transmitting the temperature to the remote mobile phone is also included between the step (7) and the step (8).
The invention has the beneficial effects that:
the overtemperature early warning device and the overtemperature early warning method for the open-type isolating switch disclosed by the invention have the following advantages that:
①, the device is directly installed at the contact of the isolating switch, and a highly sensitive temperature sensor is used for directly measuring the temperature of the device, so that the measuring accuracy is high.
② the device is directly mounted on the isolating switch, and can continuously measure the temperature in real time and monitor the temperature change of the isolating switch.
③ intelligent data analysis, real-time transmission of the monitored results to the platform, analysis and storage of the data, and judgment of the results under different conditions.
④ wireless transmission, the physical isolation of strong and weak current is realized by using wireless signal transmission technology, the electrical connection between the sensor and the transceiver is avoided, and the safety is greatly improved.
⑤ prewarning overtemperature, and prewarning the operation and maintenance personnel of the transformer substation by a short message mode according to the result obtained by intelligent data analysis to find out the equipment fault in advance.
⑥ the device is simple, the maintenance cycle is long, the cost is low, the safety and reliability of the equipment operation can be greatly improved, and the working strength of the transformer substation operation and maintenance personnel can be reduced.
Drawings
FIG. 1 is a schematic block diagram of the structure of one embodiment of the apparatus of the present invention;
FIG. 2 is a flow chart of one embodiment of the method of the present invention.
Detailed Description
The following description of the embodiments of the present invention refers to the accompanying drawings and examples:
as shown in fig. 1-2, which illustrate an embodiment of the present invention,
the open-type disconnecting switch overtemperature early warning device is used for monitoring the temperature of the disconnecting switch of the transformer substation; comprises a data acquisition module and a data processing module.
The data acquisition module comprises three subunits, namely a data acquisition unit, a data transmission unit and a data receiving unit; the data acquisition unit is a temperature sensor, the temperature sensor is arranged at a contact of the isolating switch, acquired information is sent to the data transmission unit arranged on a basic framework of the isolating switch through radio waves, the data transmission unit collects the information of a plurality of temperature sensors at intervals where the isolating switch is arranged and then sends the collected information to the digital relay station of the data receiving unit through the radio waves, and the digital relay station of the data receiving unit collects a plurality of data transmitted at intervals and then sends the collected data to the data analysis unit of the data processing module;
the data processing module comprises a data analysis unit and a human-computer interaction unit. The data analysis unit singlechip analyzes, processes and judges the data of the data acquisition module, displays the result through a liquid crystal screen of the man-machine interaction unit, and sends a short message to the mobile phone end.
As a preferred embodiment of the device of the invention: the temperature sensor is a temperature difference electricity-taking temperature sensor.
As a preferred embodiment of the device of the invention: the data acquisition unit adopts a Zhuhai one-more TP-K01 type temperature sensor to finish temperature data acquisition; the data transmission unit completes wireless transmission of data by adopting a ZigBee technology; the data receiving unit adopts an SZ05-L-PRO-3 data transmission module of the boat science and technology company to complete wireless receiving of data; the data analysis unit is realized by adopting an MSP 430F 149 single chip microcomputer to complete the processing and analysis of data; the man-machine interaction unit realizes man-machine interaction of an upper computer and a lower computer by adopting an association LI22-41WD liquid crystal display and MATLAB software programming, and realizes short message warning by adopting a Ningbo Xin GFM900A short message module.
The invention also discloses an overtemperature early warning method for the open-type isolating switch, which adopts any one of the devices to execute the following steps:
(1) starting initialization; sequentially finishing the initialization of the MCU, the initialization of the temperature measuring module, the initialization of the wireless transmitting module and the initialization of the wireless receiving module; the temperature measuring module is a temperature sensor;
(2) measuring the temperature; the temperature sensor measures temperature, and the MCU reads the temperature of the temperature sensor and stores the temperature in the register;
(3) initializing a UART;
(4) the MCU sends data to the FIFO and waits for the end of the current sending task;
(5) the wireless sending module sends data;
(6) the wireless receiving module receives data;
(7) the MCU reads the temperature from the UxBUF and displays the temperature to the upper computer;
(8) and finishing the temperature measuring process.
As a preferred embodiment of the method of the invention: and a step of transmitting the temperature to the remote mobile phone is also included between the step (7) and the step (8).
As shown in fig. 1, the overtemperature early warning device and method for the open-type disconnecting switch disclosed by the invention have the following advantages:
①, the device is directly installed at the contact of the isolating switch, and a highly sensitive temperature sensor is used for directly measuring the temperature of the device, so that the measuring accuracy is high.
② the invention is directly mounted on the isolating switch in the concrete implementation, and can continuously measure the temperature in real time and monitor the temperature change of the isolating switch.
③ intelligent data analysis, real-time transmission of the monitored results to the platform, analysis and storage of the data, and judgment of the results under different conditions.
④ wireless transmission, the physical isolation of strong and weak current is realized by using wireless signal transmission technology, the electrical connection between the sensor and the transceiver is avoided, and the safety is greatly improved.
⑤ prewarning overtemperature, and prewarning the operation and maintenance personnel of the transformer substation by a short message mode according to the result obtained by intelligent data analysis to find out the equipment fault in advance.
⑥ the device is simple, the maintenance cycle is long, the cost is low, the safety and reliability of the equipment operation can be greatly improved, and the working strength of the transformer substation operation and maintenance personnel can be reduced.
The overtemperature early warning device and the overtemperature early warning method for the open type isolating switch disclosed by the invention have the following benefits after implementation:
the total 12 hours of power failure, defect elimination and power transmission of a 220kV and 110kV line are calculated, the total power failure time is reduced by 132 hours, the vehicle movement is reduced by at least 55 times, and the manpower is reduced by at least 165 persons/time. In the benefit of the traffic cost, the number of power failure times is reduced by 11, the vehicles with single power cut and transmission demand 5 times, the average round trip is 65km, the fuel consumption is 14L, 7 yuan, and each liter is 3504 yuan; in the labor cost benefit, reducing the power failure times by 11, stopping power supply requires 5 groups of people, each group of people needs at least 3 people (1.5 hours for the journey to go back and forth + 4 hours for the work), 23 yuan/hour is 20873 yuan; the economic benefit of applying the device disclosed by the invention for four months is calculated to amount to about 2.4 ten thousand yuan.
In the device, a data acquisition unit adopts a Zhuhai one-more TP-K01 type temperature sensor to finish temperature data acquisition;
in the device, a data transmission unit adopts a ZigBee technology to complete wireless transmission of data;
in the device, a data receiving unit adopts an SZ05-L-PRO-3 data transmission module of a shun boat science and technology company to complete wireless reception of data;
in the device, the data analysis unit adopts an MSP 430F 149 single chip microcomputer to complete the processing and analysis of data;
in the device, a man-machine interaction unit realizes man-machine interaction of an upper computer and a lower computer by adopting an association LI 2241 WD liquid crystal display and MATLAB software programming, and realizes short message alarm by adopting a Ningbo Xin GFM900A short message module.
In summary, as shown in FIG. 1: the device disclosed by the invention is divided into two parts, namely a data acquisition module and a data processing module.
The data acquisition module is divided into three subunits of a data acquisition unit, a data transmission unit and a data receiving unit. The data acquisition unit uses a temperature difference electricity-taking temperature sensor, the sensor is arranged at a contact of the isolating switch, acquired information is sent to the data transmission unit arranged on a basic framework of the isolating switch through radio waves, the data transmission unit collects the information of the sensors at intervals and sends the collected information to the digital relay station of the data receiving unit through the radio waves, and the digital relay station of the data receiving unit collects the data of a plurality of interval transmissions and sends the collected data to the data analysis unit of the data processing module.
The data processing module is divided into two subunits, namely a data analysis unit and a human-computer interaction unit. The data analysis unit single chip microcomputer analyzes, processes and judges the data of the data acquisition module, displays the result through a man-machine interaction unit liquid crystal screen, and sends a short message to a designated mobile phone to help operation and maintenance personnel of the transformer substation find equipment faults in time.
After the open type over-temperature early warning device for the disconnecting switch disclosed by the invention is installed, debugged and put into operation, a user needs to check and process a result through a human-computer interaction interface. After the isolating switch contact is heated, the sensor sends the acquired data upwards to the digital relay station of the data receiving unit step by step, the data analysis unit analyzes, processes and judges the data, and the result is displayed by a liquid crystal screen of the man-machine interaction unit. The heating time, the heating place, the heating equipment, the heating phase, the heating level and other information can be displayed, a short message is sent to a specified mobile phone, and the operation and maintenance personnel of the transformer substation read the result and process the result.
While the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited to the above embodiments, and various changes, which relate to the related art known to those skilled in the art and fall within the scope of the present invention, can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.
Claims (5)
1. The open-type disconnecting switch overtemperature early warning device is used for monitoring the temperature of the disconnecting switch of the transformer substation; the method is characterized in that: comprises a data acquisition module and a data processing module;
the data acquisition module comprises three subunits, namely a data acquisition unit, a data transmission unit and a data receiving unit; the data acquisition unit is a temperature sensor, the temperature sensor is arranged at a contact of the isolating switch, acquired information is sent to the data transmission unit arranged on a basic framework of the isolating switch through radio waves, the data transmission unit collects the information of a plurality of temperature sensors at intervals where the isolating switch is arranged and then sends the collected information to the digital relay station of the data receiving unit through the radio waves, and the digital relay station of the data receiving unit collects a plurality of data transmitted at intervals and then sends the collected data to the data analysis unit of the data processing module;
the data processing module comprises a data analysis unit and a human-computer interaction unit; the data analysis unit singlechip analyzes, processes and judges the data of the data acquisition module, displays the result through a liquid crystal screen of the man-machine interaction unit, and sends a short message to the mobile phone end.
2. The open-type disconnecting switch overtemperature early warning device of claim 1, characterized in that: the temperature sensor is a temperature difference electricity-taking temperature sensor.
3. The open-type disconnecting switch overtemperature early warning device of claim 1, characterized in that: the data acquisition unit adopts a Zhuhai one-more TP-K01 type temperature sensor to finish temperature data acquisition; the data transmission unit completes wireless transmission of data by adopting a ZigBee technology; the data receiving unit adopts an SZ05-L-PRO-3 data transmission module of the boat science and technology company to complete wireless receiving of data; the data analysis unit is realized by adopting an MSP 430F 149 single chip microcomputer to complete the processing and analysis of data; the man-machine interaction unit realizes man-machine interaction of an upper computer and a lower computer by adopting an association LI22-41WD liquid crystal display and MATLAB software programming, and realizes short message warning by adopting a Ningbo Xin GFM900A short message module.
4. An overtemperature early warning method for an open type disconnecting switch, which adopts the device as claimed in any one of claims 1-3 to execute the following steps:
(1) starting initialization; sequentially finishing the initialization of the MCU, the initialization of the temperature measuring module, the initialization of the wireless transmitting module and the initialization of the wireless receiving module; the temperature measuring module is a temperature sensor;
(2) measuring the temperature; the temperature sensor measures temperature, and the MCU reads the temperature of the temperature sensor and stores the temperature in the register;
(3) initializing a UART;
(4) the MCU sends data to the FIFO and waits for the end of the current sending task;
(5) the wireless sending module sends data;
(6) the wireless receiving module receives data;
(7) the MCU reads the temperature from the UxBUF and displays the temperature to the upper computer;
(8) and finishing the temperature measuring process.
5. The open-type disconnecting switch overtemperature early warning method of claim 4, characterized in that: and a step of transmitting the temperature to the remote mobile phone is also included between the step (7) and the step (8).
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| CN201911161470.5A CN110806769A (en) | 2019-11-25 | 2019-11-25 | Overtemperature early warning device and method for open-type isolating switch |
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| CN201911161470.5A CN110806769A (en) | 2019-11-25 | 2019-11-25 | Overtemperature early warning device and method for open-type isolating switch |
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Patent Citations (8)
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|---|---|---|---|---|
| US20080144238A1 (en) * | 1999-11-30 | 2008-06-19 | Cline David J | Controller system for pool and/or spa |
| CN201255666Y (en) * | 2008-09-23 | 2009-06-10 | 於爱东 | Wireless temperature measurement and monitoring apparatus for transforming plant |
| GB2484960A (en) * | 2010-10-28 | 2012-05-02 | Kevin Kitching | Smart motor disconnection switch |
| CN102879117A (en) * | 2012-10-25 | 2013-01-16 | 宁夏电力公司银川供电局 | Electric field induction powered disconnector contact temperature online measurement and wireless transmission device |
| CN105758557A (en) * | 2014-12-17 | 2016-07-13 | 国家电网公司 | Calibration device for temperature monitoring equipment of disconnecting switch contact |
| CN106568523A (en) * | 2016-11-10 | 2017-04-19 | 中国电力科学研究院 | Wireless temperature measuring system for high-voltage isolating switch |
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Application publication date: 20200218 |
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