CN105005235A - On-line icing monitoring system for power transmission line - Google Patents

Abstract

The invention discloses an online icing monitoring system for transmission lines, which includes a hardware part and a software part. The hardware part includes a front-end data monitor, a monitoring center computer room, an intermediate database server, a main database server, a web server, a local backup server, an application server, Remote backup server, public network user host and intranet user host, the software part includes a system management platform, a trend curve display platform, a statistical analysis platform, an alarm service platform, a background information processing platform and a remote control platform. This system utilizes China Unicom/ Any one of various communication methods such as mobile and other public networks, optical fibers, and wireless relays can complete the remote real-time transmission of various on-site data, and combine the expert knowledge base and various revised theoretical models to give ice forecasts and timely Ice information to effectively prevent ice damage accidents.

Description

Transmission Line Icing Online Monitoring System

technical field

The invention relates to a monitoring system for a transmission network, in particular to an online monitoring system for icing on a transmission line.

Background technique

At present, with the rapid development of the national economy, the demand for electric energy is increasing. In recent years, the scale of power grid construction has been unprecedented, and the average maintenance length of each line worker is more than 20 kilometers. Sichuan is a mountainous area, and line inspection workers need to climb mountains and mountains, and basically complete line inspection work on foot. The workload is heavy and difficult. Under the climate conditions of heavy snow and mountains, it is difficult to inspect the lines in heavy ice areas, so it is impossible to grasp the ice-covered conditions of the lines in time.

In recent years, due to weather changes, accidents have occurred in Sichuan's backbone grid lines due to severe icing, which has caused huge losses to power grid security and social and economic life. In China, in order to solve the above problems, icing online monitoring systems, image monitoring systems, and micro-meteorological monitoring devices have been installed on transmission lines one after another to strengthen the remote monitoring and maintenance capabilities of transmission lines.

The following problems occurred during construction:

(1) For the same type of online monitoring device, different manufacturers use different background systems, which cannot be compatible with similar products of other manufacturers; for different types of online monitoring devices, even the same manufacturer needs to install different background systems . As a result, there are many backgrounds and a serious waste of resources. Moreover, the background systems of different manufacturers have different design styles, and users need to be familiar with different background styles and learn different operation methods, which increases the difficulty of learning and using, and is not conducive to popularization and application.

(2) The on-line monitoring technology of transmission lines is a new technology, and the level of devices of various manufacturers varies. Due to the lack of unified management by the technical department, most of the previously installed on-line monitoring devices have technical defects, or lack of necessary daily operation and maintenance work, making these devices unable to work normally, and some devices are even in an idle state.

Contents of the invention

The technical problem to be solved by the present invention is to provide an on-line monitoring system for icing of power transmission lines, so as to solve the above-mentioned shortcomings in the background technology.

The technical problem solved by the present invention is realized by adopting the following technical solutions: the online monitoring system for icing of transmission lines includes hardware and software parts,

The hardware part includes a front-end data monitor, a monitoring center computer room, an intermediate database server, a main database server, a web server, a local backup server, an application server, a remote backup server, a public network user host and an intranet user host, and the front-end data The monitor transmits the data to the monitoring center computer room, and then the monitoring center computer room distributes the data to the intermediate database server, the main database server, the web server, the local backup server, the application server and the remote backup server, and the public network users The host and intranet user host access the data in the above server through the Internet;

The software part includes a system management platform, a trend curve display platform, a statistical analysis platform, an alarm service platform, a background information processing platform and a remote control platform, and the system management platform includes user management, authority management and equipment management, and the trend curve The display platform includes micro-meteorological curves, tension curves, slope curves, and humidity curves; the statistical analysis platform includes image browsing functions, meteorological statistics, tension statistics, frequency statistics, and amplitude statistics; the alarm service platform includes sound alarms, SMS alarms device and a wireless alarm device; the background information processing platform includes an icing day forecast processing system, a long-term icing prediction system, a mid-term icing prediction system, a short-term icing prediction system, and an ice-melting strategy system; the remote control platform includes Communication control function, acquisition cycle control function, upload cycle control function, work mode control function, camera control function and power control function.

In the present invention, further, the front-end data monitor includes a DTU terminal, a collector, a wireless sensor and an alarm.

In the present invention, further, data transmission is performed between the front-end data monitor and the monitoring center computer room through GPRS wireless relay communication.

In the present invention, further, the front-end data monitors include line vibration monitors, icing monitors, and salt density monitors.

In the present invention, further, each monitor in the front-end data monitor is independently installed in a shielding box, and the core circuit is prevented from electromagnetic intrusion and disturbance burning through a multi-layer isolation method.

Beneficial effects of the present invention: the system utilizes any of various communication methods such as China Unicom/Mobile, optical fiber, and wireless relay to complete remote real-time transmission of various field data, combined with expert knowledge base and various correction theories The model gives ice forecast and timely deicing information, effectively preventing ice damage accidents. In general, the main functions of this system include:

(1) Complete the quantitative calculation of the equivalent ice coating thickness of the transmission wire through the mechanical monitoring method;

(2) Realize the qualitative analysis and judgment of the icing condition, icing thickness and icing uniformity of the transmission line through the image monitoring method;

(3) Realize the prediction of the icing condition and ice thickness of the transmission line through the analysis method of meteorological parameters;

(4) Realize the measurement and calculation of the actual ice thickness of the transmission line through accurate image monitoring and difference identification. The combination of quantitative and qualitative monitoring methods for line icing using multi-mode information such as mechanics, meteorology, and images has greatly improved the accuracy of icing measurement.

(5) It can be used in conjunction with the deicing system, which can not only provide a basis for the latter's start-up timing, but also provide important on-site information for the control of the deicing process by monitoring the deicing status of the wire;

(6) Be able to use field data and theoretical models to complete analysis and research on the growth mechanism of ice coating, strength verification of towers and fittings, etc.

Description of drawings

Fig. 1 is the connection structure schematic diagram of hardware part of the present invention;

Fig. 2 is a functional schematic diagram of software components of the present invention.

In the figure: 1-front-end data monitor, 2-monitoring center computer room, 3-intermediate database server, 4-main database server, 5-web server, 6-local backup server, 7-application server, 8-remote backup server, 9-public network user host, 10-intranet user host;

11-system management platform, 12-trend curve display platform, 13-statistical analysis platform, 14-alarm service platform, 15-background information processing platform, 16-remote control platform.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

As shown in Fig. 1 and Fig. 2, the transmission line icing online monitoring system includes a hardware part and a software part, and the hardware part includes a front-end data monitor 1, a monitoring center computer room 2, an intermediate database server 3, a main database server 4, web server 5, local backup server 6, application server 7, remote backup server 8, public network user host 9 and intranet user host 10, the front-end data monitor 1 transmits data to the monitoring center computer room 2, and then the The monitoring center computer room 2 distributes data to the intermediate database server 3, the main database server 4, the web server 5, the local backup server 6, the application server 7 and the remote backup server 8, and the public network user host 9 and the intranet user host 10 access the data in the above-mentioned server in the form of the internet; the software part includes a system management platform 11, a trend curve display platform 12, a statistical analysis platform 13, an alarm service platform 14, a background information processing platform 15 and a remote control platform 16, so The system management platform 11 includes user management, authority management and equipment management, and the trend curve display platform 12 includes micro-meteorological curves, tension curves, slope curves, and humidity curves; the statistical analysis platform 13 includes image browsing functions, meteorological statistics, Pull force statistics, frequency statistics and amplitude statistics; the alarm service platform 14 includes sound alarms, short message alarm devices and wireless alarm devices; the background information processing platform 15 includes ice coating day forecast processing system, ice coating long-term prediction system, Ice medium-term prediction system, ice-covered short-term prediction system and release ice-melting strategy system; the remote control platform 16 includes communication control function, collection cycle control function, upload cycle control function, working mode control function, camera control function and power supply control function .

The monitoring of high-voltage transmission lines is realized. The front-end data monitor 1 in the system conducts all-weather monitoring of the surrounding conditions and environmental parameters of the transmission lines, and the obtained data is transmitted to the system through GPRS/CDMA/3G/optical brazing to make the transmission lines run Being visible and controllable, it can effectively reduce electrical accidents caused by various factors.

Through the software system management module, the scalable system framework is realized, and the lines and data operations in the system are controlled by multi-level authority. Through the line information, monitoring equipment and other modules, the unified data of the base station, monitoring unit and other equipment is established to realize the detailed setting of different parameters such as design and operation, as well as the unified management and maintenance of the infrastructure for transmission line operation. Realize monitoring data display, query, statistics and other functions through the trend curve.

Through the statistical analysis module, it realizes the analysis and statistics of online monitoring data, alarm data and fault information, and checks the operation status of monitoring equipment, and provides statistical analysis reports and reports for transmission line operation, alarm, fault and other information for power grid operating units.

Through the alarm management module, the prompt, early warning, and alarm information are classified and processed. It focuses on the decision support function for line operators to help solve practical problems in the line. Realize the informatization of failure and accident handling procedures of relevant departments of power transmission, and improve the efficiency and speed of relevant departments in dealing with emergencies.

Through the information platform, the province's icing situation daily is released in time during the disaster. Forecast the icing situation, issue long-term (one month), medium-term (one week) and short-term (2-3 days) forecast functions, and propose ice melting strategies, when to start DC ice melting, and when to stop DC ice melting.

In the system software architecture, first, the data collected by the front-end collector through the sensor is sent to the 3G data processing software regularly through the wireless network, and the 3G data processing software processes the data (such as temperature, wind speed, wind direction, vibration, line temperature, etc.). Then, the processed data is temporarily stored in the intermediate database, and then the data is handed over to the main database of the monitoring center; the database management software manages the data storage between databases, and also provides an interface for importing and exporting data from external databases. Network other databases to obtain data; data statistics and analysis software automatically analyze and process certain data (such as temperature, vibration, etc.) Modules (such as line information module, equipment information module, online monitoring module, statistical analysis module, alarm management module, expert knowledge base module) publish various information.

Above shows and described basic principle of the present invention and main feature and the advantage of the present invention, those skilled in the art should understand that, the present invention is not limited by above-mentioned embodiment, what described in above-mentioned embodiment and description just illustrates the present invention Principle, under the premise of not departing from the spirit and scope of the present invention, the present invention also has various changes and improvements, and these changes and improvements all fall within the claimed scope of the present invention, and the claimed protection scope of the present invention is defined by the appended claims Requirements and their equivalents are defined.

Claims (5)

1. Transmission line icing online monitoring system, including hardware and software, characterized by: The hardware part includes a front-end data monitor, a monitoring center computer room, an intermediate database server, a main database server, a web server, a local backup server, an application server, a remote backup server, a public network user host and an intranet user host, and the front-end data The monitor transmits the data to the monitoring center computer room, and then the monitoring center computer room distributes the data to the intermediate database server, the main database server, the web server, the local backup server, the application server and the remote backup server, and the public network users The host and intranet user host access the data in the above server through the Internet; The software part includes a system management platform, a trend curve display platform, a statistical analysis platform, an alarm service platform, a background information processing platform and a remote control platform, and the system management platform includes user management, authority management and equipment management, and the trend curve The display platform includes micro-meteorological curves, tension curves, slope curves, and humidity curves; the statistical analysis platform includes image browsing functions, meteorological statistics, tension statistics, frequency statistics, and amplitude statistics; the alarm service platform includes sound alarms, SMS alarms device and a wireless alarm device; the background information processing platform includes an icing day forecast processing system, a long-term icing prediction system, a mid-term icing prediction system, a short-term icing prediction system, and an ice-melting strategy system; the remote control platform includes Communication control function, acquisition cycle control function, upload cycle control function, work mode control function, camera control function and power control function. 2. The transmission line icing online monitoring system according to claim 1, characterized in that: the front-end data monitor includes a DTU terminal, a collector, a wireless sensor and an alarm. 3. The transmission line icing online monitoring system according to claim 1, characterized in that: the front-end data monitor and the monitoring center computer room perform data transmission through GPRS wireless relay communication. 4. The transmission line icing online monitoring system according to claim 1, characterized in that: said front-end data monitors include line vibration monitors, icing monitors, and salt density monitors. 5. The transmission line icing online monitoring system according to claim 1, characterized in that: each monitor in the front-end data monitors is independently installed in a shielding box, and is prevented from electromagnetic interference by means of multi-layer isolation. Intrusion and disturbance burns out the core circuit.