TIP3000 Intelligent Substation Auxiliary System Integrated Monitoring Platform Solution
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I. Overview
1.1
With the rapid development of computer technology and network communication technology, the development of power system automation construction has become more and more complete, especially in the safety and protection of substations. The latest computer technology, communication technology and image processing technology have been widely used, such as video Monitoring system, intrusion alarm system, SF6 gas detection system, fire fighting system, etc.
The traditional intelligent substation security system is affected by traditional concepts and technologies, and each subsystem is isolated, so that a kind of monitoring “island” phenomenon appears, which invisibly reduces the practicability, stability and safety of the system. And it increases investment costs. Especially in the current power system, in order to improve labor productivity and enhance competitiveness, a large number of unattended or less-attended modes are adopted in the normal production process of substation systems. For places like substations, a remote, real-time, multidimensional, and automatic intelligent integrated security system is a prerequisite for the safe operation of substations.
1. Surveillance “island”: video surveillance, intrusion alarm, fire protection and other systems operate independently, unable to realize the linkage of the system. Not only does the system rely on human monitoring, which leads to lower security, but also increases the burden and work pressure of the center management staff. And greatly increased the investment of the power supply company.
2. Unable to link and prevent accidents: Since all the videos are transmitted to the central station or emergency platform, dozens or even hundreds of video images need to be monitored. It is impossible to achieve all monitoring by relying only on human resources. Visual fatigue and human slack can lead to accidents that cannot be captured and prevented.
3. Fire-fighting incidents cannot be monitored and prevented remotely: most substations are far away from the central station. When a fire accident occurs at the scene, the firefighting time is delayed because the firefighters cannot open the door of the control room and other rooms in time;
4. Lack of environmental monitoring means: At present, most substations use thermometers to measure the ambient temperature, without real-time monitoring of the environment such as temperature, humidity, water leakage, etc., and cannot monitor and prevent dangerous events, let alone adjust according to temperature and humidity. The temperature of the air conditioner can realize energy-saving and efficiency-increasing.
5. Substations are generally built in remote areas, and incidents of theft of electrical equipment occur from time to time. Although the existing monitoring system can record what happened at the time, due to technical problems, it is unable to remotely interfere or stop theft, let alone prevent accidents.
6. At present, all door locks in the substation adopt mechanical locks, which means that all the doors of the equipment rooms can be opened with a key at random, so there is a great safety hazard. On the one hand, outsiders can use the borrowed key. You can open any door as you like, and it is impossible to record the opening time. This may not only cause items to be stolen, but even open the wrong door of the equipment room and stray into the electrified interval, resulting in casualties. On the other hand, when the key is lost, the security risks mentioned above are even more present.
At present, inspections of substations are carried out by manual recording. Modern visas are issued, statistics are time-consuming and laborious, and real-time monitoring and management cannot be achieved.
1.2 Introduction to the system
Anhui Dianke Hengtai Intelligent Technology Co., Ltd. provides a comprehensive intelligent substation auxiliary system integrated monitoring platform for smart substations, realizing the temperature, humidity, air conditioning, water pumps, fire protection, lighting, fans, access control, harmful gases, infrared perimeters and All-weather status monitoring and intelligent control of the surrounding environment, support remote real-time video monitoring, remote fault and unexpected situation alarm reception processing, and easily realize unattended smart substations.
Solve the problems of “under control” and “controllable” in the safe operation of substations.
● Transform the “monitoring” as the core of other similar software into automatic and intelligent “monitoring” and “control” as the core, thereby producing a “quality” improvement.
● Transform the post-accident alarm into pre-accident warning and accident control;
● Integrate and link the scattered and isolated subsystems to solve the problem of system islands;
● Transform manual fault judgment and elimination into technical automatic judgment;
● Transform the passive manual management into automatic control by the system according to the set conditions;
● Change the normal patrol once every 3 to 4 days into 24-hour real-time monitoring;
● Turn the on-site visual inspection of operators into automated monitoring;
● Change scattered inspections into centralized monitoring.
Two system overall design
2.1. Design basis
Standard number standard name
Q/GDW 383-2009 Technical Guidelines for Smart Substations
Q/GDW 393-2009 110(66)kV ～ 220kV Smart Substation Design Specification
Q/GDW 394-2009 330kV ～ 750kV Smart Substation Design Specification
GB 4798.4 Application environmental conditions of electrical and electronic products for use in places without climate protection
And so on a series of standards
2.2 Deploy, collect, and monitor the environmental monitoring equipment in the two substations,
Name item scope remarks
Substation temperature and humidity monitoring environment monitoring
Gas monitoring
Air conditioning linkage equipment linkage
Dehumidifier linkage
Lighting control
Network video surveillance audio and video surveillance
Real-time audio monitoring
2.3 User characteristics
1. The end users that this software faces are non-computer professionals and non-professional network administrators. In order to increase the practicability and applicability of the software, the convenience and ease of operation should be fully considered in the design of the software interface and interface;
2. The end user has a strong ability to operate Window series operating systems, Office software, browsers and other software. According to this, the design of software interaction should be standardized, concise and intuitive.
2.4 Assumptions and constraints
1. Operating environment
The system software, hardware, and network environment should be able to meet the operating requirements of the application and be safe and stable.
2.5 Main roles and use cases of the system
Description of the main use case of the role name
System administrator 1, data service and platform configuration, including:
User authority management
regional settings
System parameter maintenance
Adding and configuration management of station equipment
Switch input and output settings
Alarm linkage policy setting
other
Decision makers 1, data query
2. Monitoring and reading
3. Formulation of inspection tasks
4. Other customized management functions
Operation and maintenance personnel 1, data query
2. Monitoring and reading
3. Alarm information processing
4. Execution of inspection tasks
5. Report processing
3. System functional requirements
3.1 Functional structure diagram
3.2 List of functional requirements
Functional requirements
Function category Function name Function description
Environmental data collection and temperature monitoring 1. Monitor and collect data, and upload the data to the system platform
Humidity monitoring
Gas monitoring
Water level monitoring
Equipment linkage control air conditioner 1. Automatically control equipment according to the set data threshold.
2. Link the equipment based on the collected monitoring data.
Fan
dehumidifier
Water pump
light
Video and audio surveillanceVideo surveillanceLive audio and video surveillance
Audio monitoring
Remote inspection and inspection path 1. Set inspection equipment points to form an inspection route
2. Display the equipment data, confirm the operation of the inspection personnel, and form a record
Inspection record
System configuration database management database settings and management
Equipment Information Management Setting and management of on-site equipment information
User Management User Rights Management
System log system log record
Backup and recovery system data backup and recovery
Device list The device list is used to view the collected data status of each device terminal, as well as video preview, and provide overall system status and alarm information
Multi-screen full-screen preview of video display Multi-screen full-screen preview, automatic switching can be set
Alarm function SMS/voice alarm abnormal data SMS alarm
Alarm record Alarm event record
System configuration database management database settings and management
Equipment Information Management Setting and management of on-site equipment information
User Management User Rights Management
System log system log record
Backup and recovery system data backup and recovery
Device list The device list is used to view the collected data status of each device terminal, as well as video preview, and provide overall system status and alarm information
Multi-screen full-screen preview of video display Multi-screen full-screen preview, automatic switching can be set
Alarm function SMS/voice alarm abnormal data SMS alarm
Alarm record Alarm event record
Fourth, the characteristics of the system
Openness (important)
It can access station-end equipment, sensors, controllers, cameras, etc. of different manufacturers/brands.
Unity
Need to include the conversion of communication protocol (485/422/232/61850/switching value, etc.), with automatic time synchronization function, which can realize the concentration and management of different station equipment, including environmental monitoring, audio and video, lighting, security, etc. Complete, centralized and unified
Intelligence
Different monitoring strategies can be set for different monitoring scenarios (switch room, equipment room, control room, ground, underground, etc.), and different monitoring functional departments can be configured arbitrarily to meet different monitoring needs.
Easy to expand
When monitoring sitesequipment increase and system upgrades and expansions in the future, only the software configuration needs to be completed.
Ease of use
The system adopts B/S architecture design;
From an application point of view, the functions of the system platform should meet actual needs and have good operability. Operation and maintenance personnel can master the essentials of the system through simple training and be able to use the system in actual work.
High reliability
The substation is an important basic place in the distribution network structure, and the intelligent environmental monitoring system is also in a long-term operation state, and the stability of the system is particularly important. therefore:
The station-side equipment can be operated independently off the network;
Local faults do not affect the normal operation of the entire system platform.
The station-end equipment adopts a modular structure, which is convenient for troubleshooting and replacement;
The system platform has the ability to handle multiple events that occur at the same time;
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