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1. Project overview
This project requires comprehensive intelligent control and remote monitoring of the channels of Lianhuashan Substation, Gangxia Substation, and Shixia Substation. It mainly includes intelligent access control systems, power environment monitoring systems such as oil, electricity, gas, air conditioning, temperature and humidity, remote monitoring systems, security alarm and linkage systems, and patrol management subsystems.
2. Project analysis
1. Access control subsystem
According to the requirements, the access control system is set up in each studio of the substation, and the door is opened by the inductive IC card and the existing work card reader of the power grid. According to the situation of the door, the door lock adopts a special electric control lock or a magnetic lock. The access control software is installed on the main station workstation, but the customer must have its own local area network and server, and the server software must be installed on the server.
There are 24 doors in the Lianhuashan Substation that need to be controlled, 19 doors in Gangxia need to be controlled, and 13 doors in Shixia need to be controlled. They are mainly distributed in the entrance gate, main control gate, main control room, GIS room, high voltage room, and capacitor room of each station. , Grounding weaving room, safety tool room, fire pump room, main transformer network door, etc., use the power station staff’s cartoon line, push the button to go out, and remotely manage authorization. In the future, it will realize the construction of access control system with other substations, access to TCP/IP, and unified management and control by the main station. The access control systems of various substations are networked, and the central station can be controlled and managed in a unified manner. The sub-site system operators can realize local management through the management authority, and can conveniently and quickly implement remote authorization control for each card and each door.
2. Dynamic ring monitoring subsystem
● Integrated power quality online monitoring.
● Real-time monitoring of the oil gauge temperature at the main station.
● Real-time monitoring of the battery voltmeter of the main substation.
● Online monitoring of analog parameters such as temperature, humidity and wind speed.
● Remote control of air conditioner.
● Integrated automatic control system video linkage.
● The linkage function of the SF6 oxygen meter in the GIS room of the sub-station.
3. Remote monitoring subsystem
● Lighting linkage function.
● Patrol track record.
● Video data recording function before the event is started.
● Patrol point system function.
● Sound and light alarms for abnormal events, and the monitoring center displays the alarm points.
● The gate of the substation and the gate of the main control building have an abnormally large opening video function.
● Remote shouting function.
● External network monitoring function.
4. Security alarm and linkage subsystem
External sensors such as water leakage, fire alarm, vibration, smoke, infrared detection, etc., are uploaded to the management center in time when there is an alarm, so that the maintenance personnel on duty can grasp the status of the substation in real time.
The central station and the sub-station fire linkage, once an alarm occurs, the system can link to the monitoring system and send an alarm signal to the central management system. At the same time, it can automatically open the corresponding door locks as needed.
The system can be connected to the signals of the integrated automatic control system inside the substation (ie the integrated automatic control system inside the power grid). When the integrated automatic control system of the power station is in operation, the intelligent integrated management system can immediately link the monitoring system to implement real-time monitoring. Since the actual operation of the system.
Linkage function of access control system and monitoring system. When the door is opened abnormally or normally, the access controller can send a signal to start the local camera to capture images.
Infrared security system linkage, the control can be connected to the infrared alarm system signal, and the operation of disarming and arming can be carried out. When there is an alarm, the intelligent integrated management system links the monitoring video and alarms to the center
5. Patrol management subsystem
Utilizing the existing network of the access control system, power station staff conduct inspections, management and supervision of unattended substations.
Combined with the work ticket management system of the construction unit, it realizes timing, location, positioning, appointment and remote authorization operation management, which can effectively prevent unauthorized personnel from entering non-workstations and unauthorized operation areas, and avoid copying the door key and the person who receives the key from entering at will Potential safety hazards in substations.
3. Layout of each security system of the project
This project uses more than 15 HTCJQ-001 collectors, connected with various types of alarm detectors, sensors, air conditioning controllers and lighting equipment to complete the monitoring function of the power environment of the entire substation. At the same time, it realizes the linkage function with the video surveillance system and the access control system, which solves all the safety protection problems of unattended substations.
The specific distribution of access control in Lianhuashan Substation is as follows:
Entrance gate, a total of 1;
All the gates of the main control building, a total of 2;
Main control room, 2 panels in total;
GIS room, 2 fans in total;
High pressure chamber, 2 fans in total;
Capacitor room, 3 fans in total;
Grounding transformer room, 2 fans in total;
Station changing room, a total of 1;
1 safety tool room;
Fire pump room, 1 fan in total;
Cable layer, 2 fans in total;
Main transformer net doors, 3 doors in total;
The specific distribution of access control in Gangxia Substation is as follows:
All the gates of the main control building, a total of 3;
Main control room, 1 fan in total;
GIS room, 1 fan in total;
Capacitor room, 4 fans in total;
High voltage room and grounding transformer room, 3 fans in total;
Station changing room, a total of 1;
1 safety tool room;
Main transformer net doors, 4 doors in total;
Low pressure room, a total of one;
The specific distribution of access control in Shixia Substation is as follows:
Entrance gate, a total of 1;
All the gates of the main control building, a total of 1;
Main control room, 2 panels in total;
110KV high voltage chamber, 4 fans in total;
10KV high voltage chamber, 2 fans in total;
1 safety tool room;
Battery room, 1 fan in total;
Fire pump room, 1 fan in total;
There are a total of 54 doors in the three stations. From the comprehensive consideration of the system’s integrated wiring, construction and cost, a total of 36 controllers are used to establish the system. It controls card readers, electric locks and buttons for 54 doors.
Fourth, the main advantages of our company
1. Military technology, stable and reliable products: Our company is a holding company of China Electronics Technology Group, and the main technology and applications are derived from military.
2. The product is applied in large quantities, and there are successful cases of unattended substations in the power system: a large number of unattended applications in bank vaults, telecommunication base stations and substations. For example, Anhui Telecom has completed the unattended operation of 2,300 CDMA base stations. Practice has proved Reliability of product quality. In the pilot unattended substation of the Shenzhen Power Supply Bureau, the main technologies and solutions were adopted by China Southern Power Grid into the technical standards.
3. The core hardware and software platform are independently developed and produced by our company, and the quality is controllable. Compared with the dynamic ring manufacturer on the market, it is only a software company. The front-end equipment adopts the products provided by different manufacturers, and there are fewer intermediate links. Improve the stability and maintainability of the system.
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