CN110531690A - A kind of long-range fire-fighting centralized monitoring system of unattended substation - Google Patents

Abstract

The invention discloses a centralized monitoring system for remote fire protection in an unattended substation, which realizes remote monitoring and backup control of the fire protection conditions in the unattended substation by integrating and accessing electrical and fire information in the unattended substation. The present invention mainly introduces the data fusion access mode of the remote fire protection centralized monitoring system of the unattended substation and the working method of each functional module, and introduces in detail the control flow of the remote fire protection centralized monitoring system of the unattended substation and the operation and operation in different working modes. Security verification method.

Description

A centralized monitoring system for remote fire protection in unattended substations

technical field

The invention belongs to the technical field of electric engineering, and more precisely, the invention relates to a remote fire-fighting centralized monitoring system for safe and stable operation of unattended substations.

Background technique

In recent years, with the rapid development of the national power system, in order to realize the construction of a large-scale operation and large-scale maintenance system, with the improvement of the level of secondary automation equipment in the substation, the high integration and information sharing of the power system automation system, gradually meet the flat, Integrated monitoring requirements provide auxiliary information support for production operation, safety supervision management, and scheduling decision-makers. More and more substations have gradually evolved from manned substations to unattended substations. At present, among the 38,000 substations under the jurisdiction of the State Grid Corporation of China, only 77 such as UHV and 750 kV substations are in the manned mode, and the rest of the substations are in the unattended mode. The on-duty personnel of the substation operation and maintenance station accept the unified dispatching command of the dispatching control center, and at the same time perform centralized maintenance and management of the unattended substation from the aspects of power supply area, geographical location, and transportation.

Status quo of substation fire monitoring system

Fire safety has always been a very important issue in substations. After years of development, the current mainstream mode of fire protection automation in substations is to use the fire alarm host as the communication linkage center, integrating smoke detection, temperature measurement, gas detection and other equipment. Each substation has Its independent fire monitoring system. The construction principle of the fire monitoring system for unattended stations is as follows: for unattended substations that require centralized linkage control of transformer fixed fire extinguishing systems, fire water supply systems including fire pumps, and other important fire protection facilities, build a fire control room for centralized monitoring, and Arrange special personnel to be on duty 24 hours a day. For unattended substations that do not require remote linkage of firefighting equipment and facilities, the important firefighting signals in the station are connected to places on duty 24 hours a day for centralized monitoring. It can be seen that the remote centralized fire monitoring system for substations is one of the important foundations for the construction of unattended substations.

However, the fire automation system has gone through a process of development from simplicity to intelligence. At present, most fire protection centralized control systems are designed and manufactured by enterprises in the fire protection industry. Most of the products are designed for civil and commercial buildings, and there is a lack of automatic fire protection monitoring systems for the power industry. As an independent system, the fire automation system has a relatively low level of automation and has not yet established a close relationship with other systems and equipment. It still mainly relies on professionals to regularly inspect the site and perform mechanical operations. For unattended substations, there is a lack of comprehensive and effective means of fire early warning, fault identification linkage and post-disaster analysis. When an on-site fire occurs, the unattended station usually can only rely on the accurate action of the fire protection system itself. If the fire protection system fails to operate by mistake, the power system itself lacks the ability to actively save itself.

Therefore, a new technical solution is needed to solve the above technical problems.

Contents of the invention

The purpose of the present invention is to provide a new monitoring system, which can integrate and collect the data of the fire monitoring system in the unattended station, the operation data of the main equipment in the unattended station and the data of the auxiliary system, and link the video monitoring system in the unattended station. Realize fire prediction and alarm, remote and precise fire extinguishing, and post-disaster fault analysis.

To achieve the above object, the present invention provides the following technical solutions:

A remote fire protection centralized monitoring system for an unattended substation, including:

Front communication module, database, safety verification module, interface display module, fire intelligent logic judgment module, fire alarm module, control module;

The front-end communication module can receive the information sent by one or more unattended substations, and issue control information messages to the unattended station fire equipment;

The fire intelligent logic judgment module is used to judge the fire alarm, and the fire alarm module sends an alarm. Based on the fire judgment logic of the fire automation system in the unattended substation, it further adds the primary equipment information, auxiliary control system information, and fire protection equipment operation in the substation. Multi-source information judgment of status;

The control module is used to logically judge the fire alarm situation in the station and prevent misjudgment of fire equipment control; in the operation of anti misjudgment, the actual situation of video linkage equipment is finally verified;

There are three built-in control modes in the control module: open-loop control mode, semi-closed-loop control mode and closed-loop control mode; the open-loop control mode means that the control module of the unattended substation fire centralized monitoring system does not start, and only remotely monitors unattended station fire protection. situation; the semi-closed-loop control mode means that when the centralized fire control monitoring system of the on-duty substation determines that remote fire control is required, an operation prompt is issued, and the on-duty staff makes a judgment according to the prompt and manually performs fire-fighting operations; the closed-loop mode refers to the fire-fighting operation of the on-duty substation When the centralized monitoring system determines that remote fire control is required, the system automatically issues a fire control command; in the closed-loop mode, the image recognition system needs to identify the video of the operation status of the on-site equipment to confirm the actual operation status of the equipment.

Furthermore, the internal information of various power systems and fire protection system information in unattended stations should be collected in unattended stations and sent to the remote fire protection centralized monitoring system of unattended substations after completing unified data normalization processing and standardized modeling. ; Unattended substation remote fire protection centralized monitoring system should carry out unified database modeling for various data, handle the business logic correlation of various data, and uniformly collect and store data.

Further, the interface display module reflects the operation status of the main equipment of the substation, whether the related equipment and lines are running with electricity, and the fixed fire extinguishing equipment and mobile fire extinguishing equipment of the whole station should display their geographic information distribution; when a fire occurs in an unattended station When an alarm is issued, the unattended substation remote fire protection centralized monitoring system pushes the fire equipment control screen of the unattended substation, and displays the video image of the alarm equipment area to help the on-duty personnel confirm the fire status of the equipment.

Furthermore, if unattended substation fire control equipment is to be controlled, the on-duty personnel must have remote control authority, and the operator must first log in before the operation; when there is no fire alarm signal generated in the daily unattended substation, in order to prevent the equipment from miscontrolling the fire remote control button It should be in the state of prohibiting remote control. When the unattended station is in abnormal operation state, its related remote fire protection should also be disabled; in the remote control disabled mode, if you want to cancel the disable, you should log in and cancel the disable by a user with super management authority ;

When the on-duty person is in normal control, select the control object operation button. The remote fire protection centralized monitoring system of unattended substation will pop up the control verification information.

Furthermore, the fire alarm judgment logic in the unattended substation is mainly judged by the fire alarm host of the fire automation monitoring system;

The control of the remote fire protection centralized monitoring system in the unattended substation should be a backup supplement for the automatic fire control in the unattended substation; the control can only be started when the fire-fighting equipment in the unattended substation does not operate correctly.

Beneficial effects: Compared with the prior art, the monitoring system provided by the present invention can perform real-time centralized fire risk monitoring on one or more unattended substation equipment at the remote end, and can remotely control the fire extinguishing equipment in the station when a fire occurs, and timely Guarantee of fire extinguishing Safe and stable operation of unattended substations.

Description of drawings

Figure 1 is a flow chart of control and start-up control of the remote fire protection centralized monitoring system for unattended stations.

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 embodiments.

The remote fire protection centralized monitoring system of unattended substations collects fire-related information such as main equipment, auxiliary systems, fire-fighting equipment operating status, and fire-fighting perception signals in unattended substations. After data fusion and screening, it is displayed in a unified manner. The interface display module of the monitoring system can display the comprehensive fire protection information monitoring sub-graph of No. 1 to No. 3 contact substations of a certain substation, and can display the control interface schematic diagram of the remote fire protection centralized monitoring system of unattended substations. The schematic diagram of the control interface is mainly composed of three parts: alarm display area, video monitoring area, and control button area. When an important fire or alarm situation occurs, a specific alarm message will be pushed out in the alarm display area, and a monitoring picture corresponding to the accident area will be pushed out in the video monitoring area. If a fire breaks out at the #1 main transformer of No. 2 unattended substation, the remote fire protection centralized monitoring system of the unattended substation pushes the linkage related video screen, confirms the fire after logical judgment, and releases the related fire control buttons of #1 main transformer. If the system is equipped with a touch screen, you can directly click the "Start" and "Stop" buttons on the interface for remote operation. If there is no touch screen, you can use the mouse to click and operate in the traditional way.

Figure 1 is the control flow chart of the control and start-up control of the remote fire protection centralized monitoring system of the unattended substation. The centralized fire control monitoring system makes an alarm logic judgment based on the collected information, and after confirming the fire, it starts the fire alarm program to issue a fire alarm and link the fire alarm. At this time, the interface of the remote fire protection centralized monitoring system of the unattended station will automatically pop up the corresponding control interface, and at the same time, the video will be linked to display the actual operation of the fire equipment. If the system is in the semi-closed-loop control mode at this time, the system will give relevant control suggestions, such as "There is a fire in the #1 main transformer of No. 2 unattended station, please activate the #1 main transformer fire monitor!" According to the prompt information, the operator confirms the actual situation on the scene through video linkage, and then clicks the relevant operation button to perform remote operation. After clicking the operation button, the fingerprint verification window will pop up, the fingerprint verification is successful, and the remote control exits. If the system is in the closed-loop control mode at this time, the remote fire protection centralized monitoring system of the manned duty station uses the image recognition system to automatically confirm the fire situation of the equipment, issue operation prompts and automatically control the exit.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements are possible, which fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. a kind of long-range fire-fighting centralized monitoring system of unattended substation characterized by comprising

Preposition communication module, database, secure verification module, interface display module, fire disaster intelligently logic judgment module, fire are accused Alert module, control module；

Preposition communication module, which receives, can receive the information sent on one or more unattended substations, and issue to unattended Fire-fighting equipment of standing controls infomational message；

Fire disaster intelligently logic judgment module judges to alert to fire, and is alerted by fire alarm module, with nobody In substation on duty based on automatic fire fighting system fire decision logic, primary equipment information, auxiliary control in further joining station The multi-source information judgement of system information, fire-fighting equipment operating status；

Control module is to carry out logic judgment and fire-fighting equipment control anti-false judgment to raising fire alarms situation in standing；Operation is anti- It is verified in erroneous judgement finally by video interlink equipment actual conditions；

Three kinds of control modes built in control module: open loop control mode, half-closed loop control mode and close-loop control mode；Wherein Open loop control mode refers to that unattended substation fire-fighting centralized monitoring system control mould does not start, and only remotely monitors unattended It stands fire condition；Half-closed loop control mode refers to when people's substation's fire-fighting centralized monitoring system on duty is judged to need to carry out remotely When fire-fighting controls, operation indicating is issued, operator on duty judges according to prompt, manually carries out drill；Closed loop mode is Refer to that system issues fire-fighting automatically when people's substation's fire-fighting centralized monitoring system on duty judges to need to carry out long-range fire-fighting control Control command；Closed loop mode need to identify that confirmation equipment is real by image identification system to field device operating condition video Border operating status.

2. the long-range fire-fighting centralized monitoring system of unattended substation according to claim 1, which is characterized in that nothing All kinds of electric system internal informations in people station on duty and fire-fighting system information should complete unified data after unattended station acquisition The long-range fire-fighting centralized monitoring system of unattended substation is sent to after normalized and standardization modeling；Unattended power transformation Long-range fire-fighting centralized monitoring system of standing should carry out database unified Modeling to Various types of data, handle the service logic of Various types of data well Relevance, the unified acquisition and storage for carrying out data.

3. the long-range fire-fighting centralized monitoring system of unattended substation according to claim 1, which is characterized in that interface is aobvious Show that module reflects substation's main equipment operation type situation, relevant device and route whether charging operation, the fixed fire extinguishing of whole station Equipment, mobile fire-extinguishing apparatus should show its geography information distribution situation；When fire alarm occurs for certain unattended station, nobody The long-range fire-fighting centralized monitoring system of substation on duty pushes unattended station fire-fighting equipment control picture, and shows alarm equipment Area video image helps operator on duty to confirm equipment fire behavior state.

4. the long-range fire-fighting centralized monitoring system of unattended substation according to claim 1, which is characterized in that into The control of row unattended substation fire-fighting equipment, operator on duty must have remote control permission, first have to carry out operator before operation Member logs in；When daily unattended substation does not have the generation of raising fire alarms signal, equipment accidentally controls fire-fighting remote control button in order to prevent The state that should be at forbidding remote control, when unattended station be in it is improper put into operation state when, relevant long-range fire-fighting should also be prohibited With；Such as to cancel disabling in the case where being remotely controlled disabling mode, cancellation disabling should be logged in by having the user of super administration authority；

When operator on duty's normal control, the long-range fire-fighting centralized monitoring system of control object operation button unattended substation is chosen Pop-up controls check information, carries out remote control operation after passing through finger print identifying after operator on duty's confirmation message.

5. the long-range fire-fighting centralized monitoring system of unattended substation according to claim 1, which is characterized in that unattended Fire alerts decision logic in substation, based on the judgement of automatic fire fighting monitoring system fire report host；

The control of the long-range fire-fighting centralized monitoring system of unattended substation should be what fire-fighting in unattended power transformation automatically controlled Standby supplement；When having that fire-fighting equipment does not act correctly in unattended station, it can just start control.