Electrical contact on-line temperature measurement system and electric power system comprising same

Abstract

The utility model relates to an electric contact on-line temperature measurement system and an electric power system comprising the same. The electrical contact on-line temperature measurement system comprises an equipment layer which comprises a wireless temperature measurement sensor, and the wireless temperature measurement sensor is used for measuring temperature data at an electrical contact on line; the communication layer comprises wireless receiving units, the number of the wireless receiving units is the same as that of the wireless temperature measurement sensors, and the wireless receiving units and the wireless temperature measurement sensors are paired one by one and used for wirelessly receiving temperature data; and the station control layer interacts temperature data with the communication layer through a gateway, the station control layer is used for monitoring and warning the temperature of all electrical contacts on line, the station control layer comprises a computer, and the computer is used for displaying the temperature data and controlling a temperature measurement system. The on-line temperature measurement system has the advantages in the aspects of precision, real-time performance, integration and the like, and lays a solid foundation for improving the intelligent, networked and integrated development speed of the on-line temperature measurement system and realizing accurate and reliable intelligent real-time monitoring of the temperature of the electrical contact.

Description

Technical Field

[0001] The utility model relates to the technical field of power equipment safety detection; specifically, the utility model relates to an electrical contact online temperature measurement system and a power system comprising the same. Background Art

[0002] The temperature at the electrical contacts is a key parameter for the operation of power system equipment. Real-time and accurate measurement of the temperature is the guarantee for the stable operation of the power system. Usually, the temperature at the electrical contacts needs to be measured manually, which not only increases the possibility of personnel safety accidents, but also makes it impossible to process and analyze the measured data, and it is impossible to guarantee the accuracy of the measured data. Ultimately, it is difficult to find the cause of the accident, and it is impossible to predict and prevent the recurrence of the accident. Utility Model Content

[0003] In view of this, the utility model provides an electrical contact online temperature measurement system and a power system including the same, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0004] In order to achieve the above-mentioned object, the first aspect of the utility model provides an electrical contact online temperature measurement system, wherein the electrical contact online temperature measurement system comprises:

[0005] The equipment layer includes a wireless temperature sensor, and the wireless temperature sensor is used to measure the temperature data at the electrical contact point online;

[0006] A communication layer, the communication layer comprising wireless receiving units, the number of the wireless receiving units being the same as the number of the wireless temperature measurement sensors and being paired one-to-one, and being used to wirelessly receive the temperature data; and

[0007] The station control layer exchanges the temperature data with the communication layer through a gateway. The station control layer is used for online monitoring and warning of the temperature of all electrical contacts. The station control layer includes a computer, which is used for displaying the temperature data and controlling the temperature measurement system.

[0008] In the online temperature measurement system for electrical contacts as described above, optionally, the online temperature measurement system for electrical contacts also has a server that communicates with the gateway, allowing Internet terminal devices to access it through the network, and the computer is connected to a printer and a UPS power supply, and the server has an independent database for the online temperature measurement system for electrical contacts.

[0009] In the above-mentioned electrical contact online temperature measurement system, optionally, the server is provided with monitoring software, and the monitoring software includes:

[0010] A data acquisition module, wherein the data acquisition module is used to collect the temperature data;

[0011] A data processing and analysis module, which is used to clean, convert and store the temperature data collected by the data collection module, and to perform statistical analysis, trend prediction and anomaly detection on the temperature data;

[0012] A user interface module, which is used to provide a graphical user interface to intuitively provide temperature data and setting parameters for users, and the user interface module includes a temperature monitoring interface, an alarm setting interface, a historical data interface, a device status interface and a user management interface; and

[0013] A remote monitoring interface module is used for allowing a user to remotely monitor the temperature data of the electrical contacts in real time.

[0014] In the online temperature measurement system for electrical contacts as described above, optionally, the temperature monitoring interface displays the real-time temperature data of the electrical contacts in the form of a chart or numbers; the alarm setting interface allows the user to set the temperature alarm threshold, and the system issues an alarm reminder when the temperature exceeds the set value; the historical data interface allows the user to view historical temperature data records and electrical contact temperature change trends; the device status interface displays the working status of the electrical contacts, including online status, offline status, normal status, and abnormal status; the user management interface allows the user to set user permissions, including adding, deleting, and modifying user accounts and passwords; the system settings interface allows the user to set system parameters, including language selection, time settings, and data storage path.

[0015] In the above-mentioned online temperature measurement system for electrical contacts, optionally, the online temperature measurement system for electrical contacts is integrated with an automatic temperature control system, and the automatic temperature control system is used to automatically adjust the temperature at the electrical contacts based on the temperature data.

[0016] In the above-mentioned online temperature measurement system for electrical contacts, optionally, the online temperature measurement system for electrical contacts is integrated with an equipment automatic control system, and the automatic control system automatically optimizes and manages the operating parameters of functional equipment based on the temperature data.

[0017] In the above-mentioned online temperature measurement system for electrical contacts, optionally, the warning includes sending preventive maintenance reminder information.

[0018] In the online temperature measurement system for electrical contacts as described above, optionally, the electrical contacts include at least one of a cable connector, a circuit breaker contact, a knife switch, a high-voltage cable intermediate head and a dry-type transformer, and the wireless temperature measurement sensor is an inductive power wireless temperature measurement sensor fixed by a binding strap.

[0019] In the above-mentioned online temperature measurement system for electrical contacts, optionally, a shielding component is provided at the wireless temperature measurement sensor to prevent the external environment from causing electromagnetic interference and temperature interference to the wireless temperature measurement sensor.

[0020] In order to achieve the aforementioned objective, a second aspect of the present invention provides an electric power system, wherein the electric power system comprises an online temperature measurement system for electrical contacts as described in any one of the first aspects.

[0021] The utility model provides an online temperature measurement system for electrical contacts and an electric power system including the same. The online temperature measurement system for electrical contacts of the utility model has advantages in terms of accuracy, real-time performance and integration, and lays a solid foundation for improving the speed of intelligent, networked and integrated development of online temperature measurement systems and realizing accurate, reliable and intelligent real-time monitoring of electrical contact temperatures. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The disclosure of the present invention will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings:

[0023] Figure 1 The utility model is a schematic structural diagram of an embodiment of an electrical contact online temperature measurement system of the present invention.

[0024] Figure numerals: 1-wireless temperature sensor; 2-wireless receiving unit; 3-server; 4-gateway; 5-printer; 6-UPS power supply; 7-mobile phone; 8-computer. DETAILED DESCRIPTION

[0025] With reference to the accompanying drawings and specific embodiments, the composition, characteristics and advantages of an online temperature measurement system for electrical contacts and a power system including the same of the present invention will be described below in an exemplary manner. However, all descriptions shall not be used to form any limitation on the present invention.

[0026] In addition, for any single technical feature described or implied in the embodiments mentioned in this document, or any single technical feature displayed or implied in the drawings, the present invention still allows for any combination or deletion of these technical features (or their equivalents) without any technical obstacles, and thus it should be considered that these more embodiments according to the present invention are also within the scope of the description in this document.

[0027] Figure 1This is a schematic block diagram of an embodiment of an electrical contact online temperature measurement system of the utility model. In this embodiment, the system may include multiple wireless temperature measurement sensors 1, multiple wireless receiving units 2, a server 3, a gateway 4, a UPS power supply 6, a printer 5, a mobile phone terminal 7, a computer 8 and a switch ( Figure 1 ). The wireless temperature sensor 1 is used to measure the temperature data of the electrical contacts online. The number of wireless receiving units 2 and the wireless temperature sensor 1 is the same and they are paired one by one, and are used to wirelessly receive temperature data. The server 3 is used to store and process the temperature data transmitted by the wireless receiving unit 2. The gateway 4 is used to realize the communication between the wireless receiving unit 2 and the server 3. The switch is used to realize the communication between the wireless temperature sensor 1 and the wireless receiving unit 2. The computer 8 can communicate with the server 3 through the gateway 4. The printer 5 is used to print historical temperature data records and historical alarm records. The UPS power supply 6 is used to provide backup power. The mobile phone terminal 7 is used to quickly query and monitor the temperature measurement system. In addition, the wireless temperature sensor 1 belongs to the equipment layer, the wireless receiving unit 2 belongs to the communication layer, the computer 8 and the server 3 belong to the station control layer, and the station control layer exchanges temperature data with the communication layer through the gateway 4, which is used to monitor and warn the temperature of all electrical contacts online. The warning includes sending preventive maintenance reminder information.

[0028] Specifically, the wireless temperature sensor 1 is an inductive power wireless temperature sensor 1 fixed by a binding band. The wireless temperature sensor 1 can be installed at high current locations such as circuit breaker contacts, busbars and cable junctions of power equipment, and can be specifically at least one of cable joints, circuit breaker contacts, knife switches, high-voltage cable intermediate heads and dry-type transformers. The thermal effect generated by the current at the electrical contacts at these locations is relatively high, thereby improving the accuracy of the temperature value measured by the wireless temperature sensor 1. In addition, a shielding component is provided at the wireless temperature sensor 1 to prevent the external environment from causing electromagnetic interference and temperature interference to the wireless temperature sensor 1.

[0029] The wireless temperature sensor 1 transmits the measured temperature data to the wireless receiving unit 2 through the switch. The switch is a network device used for forwarding electrical signals. It can provide an exclusive electrical signal path for any two network nodes connected to the switch. The main functions of the switch include physical addressing, network topology, error checking, frame sequence and flow control. In addition, the switch also has functions such as support for virtual LANs and link aggregation.

[0030] The switch is a ring network switch, and the temperature measurement system includes at least one ring network switch. In this embodiment, the temperature measurement system can be provided with multiple switches, and the switch can be a ring network switch. The ring network switch is a special switch, and the ring network switch has the characteristics of redundancy and reliability in the ring network structure. The ring network switch can form a ring network, and each switch has two ports for forming a ring. The switches form a ring network topology in a hand-in-hand form. In this way, when a link on the ring network is disconnected, it will not affect the wireless temperature sensor 1 to forward data to the wireless receiving unit 2, thereby improving the stability of the detection system.

[0031] The wireless receiving unit 2 transmits the temperature data to the server 3 through the gateway 4. In this embodiment, the wireless receiving unit 2 has an RS-485 interface, which uses the RS-485 bus to communicate with the server 3, and the communication protocol used is the Modbus protocol. In other optional embodiments, those skilled in the art can use other suitable wireless receiving units 2 to implement the temperature measurement system. In addition, in this embodiment, the user can exchange data with the server 3 through the IP address at any place that can be connected to the Internet, which is convenient for the management personnel to understand the operation of the temperature measurement system in a timely manner.

[0032] Server 3 allows Internet terminal devices to access through the network, and provides an independent database for the online temperature measurement system of electrical contacts. Server 3 is equipped with monitoring software, which includes a data acquisition module, a data processing and analysis module, a user interface module and a remote monitoring interface module. The data acquisition module is used to receive the temperature data transmitted by the wireless receiving unit 2, and the data processing and analysis module is used to clean, convert and store the temperature data in the data acquisition module, and to perform statistical analysis and trend prediction on the temperature data, so that users can better understand the operation of the equipment. The remote monitoring interface module is used to remotely monitor the temperature data of the electrical contacts in real time, so that users can remotely monitor the temperature status of the equipment through the Internet, which is convenient for remote management and control.

[0033] In addition, the user interface module is used to provide a graphical interface, providing a user-friendly graphical interface so that users can intuitively view temperature data, set parameters and other operations. The graphical interface can include a temperature monitoring interface, an alarm setting interface, a historical data interface, a device status interface, a user management interface and a system setting interface.

[0034] Among them, the temperature monitoring interface is used to display the real-time temperature data of the electrical contacts in the form of charts and numbers, so that users can quickly understand the temperature changes. The alarm setting interface allows users to set the temperature alarm threshold. When the temperature data exceeds the temperature threshold, the alarm setting interface will issue an alarm to remind the user, ensuring the safe operation of the temperature measurement system. The historical data interface stores historical temperature data records, historical temperature data records and electrical contact temperature change trends. Users can view historical temperature data records to understand the temperature change trend of the electrical contacts for analysis and optimization. The device status interface is used to display the working status of the electrical contacts. The working status can include online status, offline status, normal status and abnormal status, which can help users find problems in time and deal with them. The user management interface is used to set permissions, including adding, deleting and modifying user accounts and passwords, so as to ensure the safety and reliability of the system. The system setting interface is used to set system parameters, including language, time and data storage path, so as to meet the personalized needs of users and greatly improve the user experience.

[0035] from Figure 1 It can be seen that the computer 8 is connected to the printer 5 and the UPS power supply 6. In this embodiment, the server 3, the printer 5, the UPS power supply 6, the mobile terminal 7 and other devices have no specific models and are configured according to project requirements to meet functional requirements. The staff can receive the temperature data of the temperature measurement system through the computer 8 and can control the temperature measurement system.

[0036] Specifically, the server 3 can provide network services, such as website hosting, database management and other services, and the printer 5 can print historical alarm records, data reports and other files into paper files, which is convenient for users to transfer and archive files. The UPS power supply 6 can provide power backup. When the main power supply is interrupted, the UPS power supply 6 can maintain the normal operation of the equipment for a period of time to prevent data loss or equipment damage. The mobile terminal 7 can be used to query and monitor the online temperature measurement system of electrical contacts, which improves the work efficiency of the staff.

[0037] In this embodiment, the online temperature measurement system for electrical contacts can be integrated with an automatic temperature control system, which is used to automatically adjust the temperature at the electrical contacts based on temperature data. In addition, the online temperature measurement system for electrical contacts can be integrated with the equipment automatic control system, which can automatically optimize the operating parameters of the management function equipment based on the temperature data.

[0038] It can be seen that the temperature measurement system of the utility model solves the following technical problems:

[0039] (1) Temperature monitoring technical issues: selecting appropriate temperature sensors, ensuring the accuracy and stability of the sensors, solving heat transfer problems between sensors and electrical contacts, etc.

[0040] (2) Data collection and transmission technology issues: Realize real-time collection, transmission and storage of electrical contact temperature data to ensure the accuracy and timeliness of the data.

[0041] (3) Data processing and analysis technical issues: Effectively process and analyze the collected temperature data, extract useful information, detect abnormal conditions and issue alarms in a timely manner.

[0042] (4) Technical issues on system stability and reliability: ensuring long-term stable operation of the system, preventing system failures or data loss, and ensuring system reliability and stability.

[0043] (5) System integration and intelligent technology issues: Realize information sharing and collaborative work with other devices or systems, improve the intelligence level of the system, and realize intelligent monitoring and control of electrical contact temperature.

[0044] Moreover, the temperature measurement system of the utility model can detect abnormal conditions in time by real-time monitoring of the temperature changes of the electrical contacts, and the staff can perform preventive maintenance, thereby avoiding equipment damage and production accidents. The temperature measurement system can reasonably control the working temperature of the electrical contacts, reduce energy consumption, reduce energy consumption and emissions, and meet the requirements of energy conservation and emission reduction. The temperature measurement system of the utility model can optimize equipment operating parameters, improve production efficiency and equipment utilization by collecting, analyzing and processing the temperature data of the electrical contacts, and the online temperature measurement system of the electrical contacts can be integrated with the automation control system to realize automatic monitoring and adjustment of the temperature of the electrical contacts, thereby improving the level of production automation.

[0045] The utility model designs the temperature measurement system in the following ways:

[0046] (1) Structural design of electrical contact online temperature measurement system

[0047] The electrical contact online temperature measurement system includes a server 3, a printer 5, a UPS power supply 6, a mobile terminal 7, monitoring software, a switch, several wireless receiving units 2 and several wireless temperature measurement sensors 1.

[0048] (2) Monitoring software function design

[0049] Functional design should include the following aspects:

[0050] 1) Real-time monitoring: The temperature data of each electrical contact is displayed in real time, which can be presented in the form of charts, tables, etc., so that users can monitor the operating status of the system at any time.

[0051] 2) Alarm function: Set the upper and lower temperature limits. When the temperature exceeds the set range, the system will automatically issue an alarm and prompt the user to take action to ensure safe operation of the system.

[0052] 3) Historical data recording: By recording historical temperature data, users can view the trend changes of historical data, analyze the operation of the system, and provide reference for system maintenance and optimization.

[0053] 4) Remote control: Users can remotely control the system and perform operations such as temperature setting and alarm setting at the docking points, making it easier for users to manage and adjust the system.

[0054] 5) Data Analysis: Provides data analysis functions, users can perform statistical analysis and trend prediction on temperature data, etc., to help users better understand system operation and optimize management decisions.

[0055] 6) User authority management: Set different user authorities to ensure the security and confidentiality of system data, while facilitating system management and operation for different users.

[0056] 7) Report export: Users can export the system's report data to facilitate data analysis, report preparation and other tasks.

[0057] 8) System log records: record system operation logs, including user operation records, alarm records, etc., to facilitate users to view system operation status and troubleshoot.

[0058] 9) Friendly interface: Design a simple and intuitive user interface to facilitate user operation and data viewing, and improve user experience and work efficiency.

[0059] The utility model also provides an electric power system, which includes the aforementioned temperature measurement system. In addition, the electric power system may include a circuit breaker contact, a busbar and a cable junction, and the wireless temperature measurement sensor 1 may be installed on the circuit breaker contact, the busbar and the cable junction.

[0060] The utility model has the following advantages:

[0061] The utility model solves the problem of heat transfer between the sensor and the electrical contact by selecting a suitable temperature measuring sensor to ensure the accuracy and stability of the sensor.

[0062] The utility model ensures the accuracy and timeliness of data by real-time collection, transmission and storage of electrical contact temperature data. The utility model effectively processes and analyzes the collected temperature data, extracts useful information, discovers abnormal conditions and issues alarms in a timely manner.

[0063] The utility model can ensure long-term stable operation of the system, prevent system failure or data loss, and ensure the reliability and stability of the system.

[0064] The utility model can realize information sharing and coordinated work with other equipment or systems, improves the intelligence level of the system, and realizes intelligent monitoring and control of the temperature of the electrical contacts.

[0065] In summary, the electrical contact online temperature measurement system of the utility model can receive the temperature data of all temperature measuring devices, and use advanced computer technology, modern electronic technology, communication technology and signal processing technology to read, analyze and process the temperature data of the temperature measuring device, and display it on the computer to monitor all temperature nodes in the entire station. The system has an independent database that can record data, query data, query curves, and query reports. It has functions such as high temperature and over-temperature limit alarms, and alarm time query. The online temperature measurement system online temperature monitoring can improve equipment safety, timely, continuously and accurately reflect the operating status of the equipment, avoid the occurrence of safety accidents, and reduce the accident rate of equipment. User stations do not need to be inspected regularly, which reduces manpower and material resources and realizes automated management.

[0066] The electrical contact online temperature measurement system of the utility model is suitable for temperature monitoring of cable joints, circuit breaker contacts, knife switches, high-voltage cable intermediate heads, dry-type transformers, low-voltage and high-current equipment in high- and low-voltage switch cabinets. Through mutual communication between wireless sensors, wireless receiving units and servers, it can avoid the safety hazards caused by excessive contact resistance and heating of the above-mentioned equipment during operation due to factors such as oxidation, looseness, dust, etc., improve equipment safety, timely, continuously and accurately reflect the equipment operation status, and reduce the equipment accident rate.

[0067] The technical scope of the present invention is not limited to the contents in the above description. Those skilled in the art can make various deformations and modifications to the above implementation without departing from the technical idea of ​​the present invention, and these deformations and modifications should all fall within the scope of the present invention.

Claims

1. An electrical contact online temperature measurement system, characterized in that: The electrical contact online temperature measurement system comprises: A device layer, the device layer comprising a wireless temperature measurement sensor (1), the wireless temperature measurement sensor (1) being used for online measurement of temperature data at an electrical contact; A communication layer, the communication layer comprising wireless receiving units (2), the number of the wireless receiving units (2) being the same as the number of the wireless temperature measurement sensors (1) and being paired one-to-one, and being used for wirelessly receiving the temperature data; and A station control layer, wherein the station control layer exchanges the temperature data with the communication layer via a gateway (4), the station control layer is used for online monitoring and warning of the temperature of all electrical contacts, and the station control layer comprises a computer (8), and the computer (8) is used for displaying the temperature data and controlling the temperature measurement system.

2. The electrical contact online temperature measurement system according to claim 1, characterized in that: The electrical contact online temperature measurement system also has a server (3) that communicates with the gateway (4), allowing Internet terminal devices to access through the network, and the computer (8) is connected to a printer (5) and a UPS power supply (6), and the server (3) has an independent database for the electrical contact online temperature measurement system.

3. The electrical contact online temperature measurement system according to claim 2, characterized in that: The server (3) is provided with monitoring software, and the monitoring software includes: A data acquisition module, wherein the data acquisition module is used to collect the temperature data; A data processing and analysis module, which is used to clean, convert and store the temperature data collected by the data collection module, and to perform statistical analysis, trend prediction and anomaly detection on the temperature data; A user interface module, which is used to provide a graphical user interface to intuitively provide temperature data and setting parameters for users, and the user interface module includes a temperature monitoring interface, an alarm setting interface, a historical data interface, a device status interface and a user management interface; and A remote monitoring interface module is used for allowing a user to remotely monitor the temperature data of the electrical contacts in real time.

4. The electrical contact online temperature measurement system according to claim 3, characterized in that: The temperature monitoring interface displays the real-time temperature data of the electrical contacts in the form of graphs or numbers; the alarm setting interface allows the user to set the temperature alarm threshold, and the system issues an alarm reminder when the temperature exceeds the set value; the historical data interface allows the user to view historical temperature data records and electrical contact temperature change trends; the device status interface displays the working status of the electrical contacts, including online status, offline status, normal status, and abnormal status; The user management interface allows the user to set user permissions, including adding, deleting, and modifying user accounts and passwords; the system setting interface allows the user to set system parameters, including language selection, time settings, and data storage paths.

5. The electrical contact online temperature measurement system according to any one of claims 1 to 4, characterized in that: The electrical contact online temperature measurement system is integrated with an automatic temperature control system, and the automatic temperature control system is used to automatically adjust the temperature at the electrical contact based on the temperature data.

6. The electrical contact online temperature measurement system according to any one of claims 1 to 4, characterized in that: The electrical contact online temperature measurement system is integrated with an equipment automatic control system, and the automatic control system automatically optimizes and manages the operating parameters of functional equipment based on the temperature data.

7. The electrical contact online temperature measurement system according to any one of claims 1 to 4, characterized in that: The alert includes sending a preventive maintenance reminder message.

8. The electrical contact online temperature measurement system according to claim 1, characterized in that: The electrical contact comprises at least one of a cable connector, a circuit breaker contact, a knife switch, a high-voltage cable intermediate connector and a dry-type transformer, and the wireless temperature measurement sensor (1) is an inductive power-taking wireless temperature measurement sensor (1) fixed by a binding strap.

9. The electrical contact online temperature measurement system according to claim 1, characterized in that: A shielding component is provided at the wireless temperature measuring sensor (1) to prevent the external environment from causing electromagnetic interference and temperature interference to the wireless temperature measuring sensor.

10. A power system, characterized in that: The power system includes the electrical contact online temperature measurement system according to any one of claims 1 to 9.

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