Intelligent substation auxiliary monitoring system solution
I. Introduction
The intelligent substation auxiliary monitoring system is an important component of the smart substation, and it is an integrated information platform integrating computer control, intelligent sensing, video monitoring, and communication and transmission technologies, through the collection and processing of monitoring data, linkage control, and alarm notification. The automatic navigation and the application of functions such as data connection with the automation system and production management system of the station end realize all-round remote monitoring of the substation system, and become an indispensable and important technical means for implementing the "large operation" strategy system.
Second, the scope of application
1. It can be widely used in substations/stations, converter stations, switching stations/stations, substations, etc. in various voltage classes.
2, can meet the following environmental requirements:
(1) Altitude: ≤ 5000m;
(2) Ambient temperature: -35 °C ~ +55 °C (outdoor), -25 °C ~ +40 °C (indoor);
(3) Relative humidity: 5% to 95%;
(4) Earthquake resistance: the horizontal acceleration of the ground is 0.30g and the vertical acceleration is 0.15g.
The safety factor is not less than 1.6;
(5) Electromagnetic interference capability: The product passes the EMC IV level test 3. The main roles and use cases of the system
Role Name
Main use case description
System administrator
1, data services and platform configuration, including:
User Rights Management Regional Settings System Parameters Maintenance Adding and Configuration Management of Station Equipment Switch Input and Output Settings Alarm Linkage Policy Settings Others
Decision maker
Data query monitoring and retrieving inspection task and making
Other customized management functions
Operation and maintenance personnel
Data query monitoring access to alarm information processing inspection task execution report processing
The intelligent substation auxiliary monitoring system follows the "Functional Specifications of the Integrated Monitoring System for Intelligent Substations" and the system adopts the IEC 61850 standard. In addition to emphasizing information sharing and information interaction between subsystems, the system also supports layered and partitioned distributed architectures and multi-level system construction. At the same time, it can realize the information exchange with the intelligent substation integration monitoring system. Meet the new requirements of smart substations for auxiliary production systems.
The intelligent substation auxiliary monitoring system can be connected to auxiliary production systems such as video monitoring system, security system, environmental monitoring system, intelligent access control system, automatic fire alarm system, and equipment temperature monitoring system. The scale and number of equipment of each subsystem can be flexibly configured. According to the actual situation, the platform can also access other third-party systems or automation equipment.
The intelligent substation auxiliary monitoring system is mainly composed of the system back-end host, transmission equipment, auxiliary control host and various auxiliary production subsystems. The entire system takes the background host as the core and completes the high integration of various subsystems. Under the premise of maintaining the relatively independent operation and automatic closed-loop control of existing subsystems, the back-end host maintains communication with each subsystem, and realizes functions such as collection, processing, and monitoring of various production information at the substation site through each subsystem. The intelligent substation auxiliary monitoring system uploads the integrated monitoring system with the standard IEC 61850 protocol. All production support information can be uploaded to the master station system through the Ethernet channel or the 2M channel.
The Internet of Things smart host is a product designed for the monitoring and control of various auxiliary production equipment. He accesses the back-end host of the system through the TCP/IP network and can remotely collect the status, alarm information, and real-time data of various devices, and can remotely control the field devices. The auxiliary control host provides 4 RS485 interfaces, 1 Ethernet interface, 24 digital input interfaces, 24 digital output interfaces, and 6 analog interface. Can access security systems, environmental monitoring systems, fire automatic alarm systems and other systems or equipment. Auxiliary control host can perform remote parameter configuration, remote management, and remote firmware upgrade over the network. The auxiliary control host can run offline. It can still achieve normal operation, linkage alarm, device control, and record storage in the event of a network disconnection or server failure.
Fourth, product functions (1) Security monitoring: System integration of electronic fences, channel access control, fire monitoring, video surveillance and other resources to form a video and audio interaction mechanism, the use of three-dimensional models to quickly show the location of the fault, the establishment of multi-dimensional three-dimensional protection system.
(2) Environmental monitoring: It supports monitoring and intelligent analysis of data such as temperature and humidity, flooding, number of lightning strikes, and SF6 gas leakage in indoor and outdoor cabinets and important places.
(3) Station energy consumption management: The current and historical data are presented visually in the station's AC/DC power supply system and energy management is implemented.
(4) Industrial equipment management: Support environmental monitoring and control of industrial equipment cabinets.
(5) Asset Management: Support interconnection with PMS systems and follow the relevant standards of the State Grid Corporation of China. Combining with RFID tags, all-round management of main and auxiliary equipments in the station can be realized.
(6) Smart inspection: It can realize the inspection work of the staff and give the current equipment operation status in the form of a test report.
(7) Remote control: Support remote control of subsystems such as lighting, air conditioning, exhaust, and access control in substations.
(8) Intra-station guidance: Provide guidance tips to inform staff of relevant information and tips.
(9) Statistical analysis: For various data storage and analysis, processing advice and early warning tips are given, and warning signals are issued.
(10) Operational Auxiliary Monitoring: The system uses a variety of sensors to monitor the running status of the equipment in real time, and can promptly find fault alarms and promptly propose equipment defect management suggestions.
(11) Advanced Application: It can realize seamless integration with SCADA, transmission and transformation status monitoring, integrated automation and other systems, and establish an integrated substation safety protection platform.
Functional category
function name
Functional description
Environmental data collection
Temperature monitoring
1. Monitor the collected data and upload the data to the system platform
Humidity monitoring
Gas monitoring
Water level monitoring
Equipment linkage control
air conditioning
1, according to the set data threshold, automatic control equipment.
2. According to the collected monitoring data, linkage equipment.
Fan
dehumidifier
Pump
light
Video and audio monitoring
Video Surveillance
Live audio and video surveillance
Audio monitoring
Remote inspection
Inspection path
1, set inspection equipment points, forming an inspection route
2, display equipment data, inspection personnel operating confirmation, forming a record
Inspection record
Equipment Information Management
User Management
System log
Backup and recovery
Device List
Video display
Alarm function
System Configuration
Database management
Database setup and management
Equipment Information Management
On-site equipment information setup and management
User Management
User rights management
System log
System logging
Backup and recovery
System data backup and recovery
Device List
Device List
It is used to view the status of data collected by each device terminal, as well as video preview, to provide overall system status and alarm information.
Video display
Multi-screen full-screen preview
Multiple screen full-screen previews can be set to automatically switch
Alarm function
SMS/voice alert
Abnormal data SMS alarm
Alarm record
Alarm event record
V. Product Features 1) Openness (Important)
It is able to access the terminal equipment, sensors, controllers, cameras, etc. of different manufacturers/brands.
2) The unity needs to include the conversion of the communication protocol (485/422/232/61850/switch, etc.), with the automatic timing function, which can realize the centralized and management of different station equipment, including environmental monitoring, audio and video, and lighting. Complete integration of security and security, etc. 3) Intelligence can be achieved for different monitoring scenarios (switching room, equipment room, control room, ground, underground, etc.), setting different monitoring strategies, different monitoring functions, arbitrary configuration, and satisfaction Different monitoring needs.
4) Ease of extensibility In the future, monitoring sites/equipment additions and system upgrades and expansions only need to complete software configuration.
5) Ease of use system using B / S architecture design;
From the perspective of application, the functions of the system platform should meet actual needs and have good operability. The operation and maintenance personnel can master the operation essentials of the system through simple training and can use the system in actual work.
6) The high-reliability substation is an important basic place in the distribution network structure. The intelligent environment monitoring system is also in a long-term operation state, and the stability of the system is particularly important. therefore:
Station-side equipment can be run independently from the network;
Local failure does not affect the normal operation of the entire system platform.
The station equipment adopts a modular structure, which facilitates troubleshooting and replacement.
The system platform has the ability to handle multiple simultaneous events;
Suction
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