Substation automation technology needs to continuously adapt to the rapid development of communication technology, information technology, measurement and control technology, software technology, and integration of control technologies, providing substations with functions such as operation monitoring, operation control, safety management, maintenance and maintenance, auxiliary decision-making, and information support. Ensure the accuracy, timeliness and completeness of information to ensure the safety, stability, and ease of maintenance of substations.
A set of excellent substation automation systems should have good performance in the above aspects. Below, Xiaobian shares with you a complete solution for substation automation systems that can be applied to substations with voltage levels of 10kV to 1000kV.
A program overview
The integrated monitoring system of ns3000 substation is developed by Guodian NARI, which is based on the all-station Ethernet architecture, sharing technology platform, partitioning of data and information partitions, sharing of all stations, realizing the functions of various subsystems, realizing various advanced applications, and supporting one The business meets the requirements of the dispatch (regulation) center for substation information and functions.
At the same time, the system can be configured and tailored to meet the needs of different applications. Including integrated automation system, intelligent auxiliary integrated monitoring system, video monitoring system, computer error prevention and locking system, clock synchronization system, relay protection and fault information system, fault recording system, security and stability control system, remote browsing and graphic gateway system, Low-voltage protection and monitoring integration system, power angle measurement system and other factory station automation system.
The second program highlights
1) Help substation operation and maintenance personnel reliably implement operations, monitoring, control, operation and maintenance, avoid misoperation accidents, ensure safe and stable operation of substations, and ensure reliable operation of the power grid.
2) Real-time monitoring and control. The collection and processing of various types of data in the station, real-time power grid operation monitoring, operation control and application analysis, to achieve the equipment operation monitoring, maintenance and management.
3) Acquisition and processing of non-real-time operating information. Including power quality monitoring, primary equipment condition monitoring (transformers, circuit breakers, etc.), secondary equipment status monitoring, auxiliary system monitoring (including substation station power supply, security guards, fire protection, environmental monitoring, etc.) and other data.
4) Realize the advanced application functions of the substation, including voltage and reactive power automatic adjustment, procedural operation and control, protection information management, equipment maintenance, planned maintenance, information analysis and comprehensive alarm, and auxiliary decision support.
5) Support and regulate integrated business needs. The main station provides real-time grid information and quasi-real-time information, and provides remote browsing services for remote data transmission and panoramic data in the station.
Three related products
1 ns2000 substation integrated automation system
The ns2000 substation integrated automation system fully supports the IEC 61850 specification, supports embedded operating systems, supports hardware such as servers, workstations, PCs, and embedded devices, and is suitable for substation automation systems with voltage ratings of 10kV to 1000kV. It has basic functions such as measurement, control, telecontrol communication, intelligent communication, monitoring, integration of protection, measurement and control, and advanced applications such as voltage and reactive power automatic control, program control, remote browsing, and graphic alarm.
Figure 1 ns2000 substation integrated automation system configuration diagram
1) ns2000 substation integrated automation system software
Based on the ns3000 substation integrated monitoring system software platform design to meet the IEC 61850 specification. Achieve a platform, multiple applications, free cutting combination, the monitoring system, remote control device, Baoxin child station, graphics gateway machine, auxiliary system unified platform, hierarchical design, modular packaging, application on-demand configuration, to meet the different size substation Requirements for the automation system.
2) nsc330 series communication control device
Nsc330 series communication control device adopts embedded linux real-time operating system design to meet the IEC 61850 specification. Supports multi-process and multi-threaded task processing; supports the collection and transmission of information; supports different communication media and communication protocols according to priority. It can be used to communicate with smart devices in a station, and can also be used for information exchange with dispatching (control) centers, centralized control centers, and so on.
3) nsd500 series of measurement and control devices
The nsd500 measurement and control device uses an embedded hardware and software architecture that meets the IEC 61850 specification. The hardware and software are modularly designed with reasonable division of labor and easy maintenance. Applied to the collection and control of voltage, current, switch, switch, device status, temperature, DC, etc. Suitable for measuring and controlling the interval, main transformer, bus coupler, busbar, etc. of each voltage level.
4) nsr600rf series complete sets of microcomputer protection monitoring and control integration devices and security automatic devices.
Nsr600rf series protection and monitoring devices use embedded hardware and software architecture to meet the IEC 61850 specification. Low power consumption, stable performance, easy design and installation, can adopt centralized group screen and decentralized installation. It is applied to the integrated monitoring, control and control functions of lines, busbars, capacitors, reactors, main transformers, self-powered transformers, station transformers, and generators. The product is applied to voltage protection and monitoring equipment with voltage levels of 110kV and below. It can also be applied to other industrial automation fields such as power plants, transportation, mining, petrochemicals, metallurgy, ports, water supply, and environmental protection.
5) EPS Series Industrial Ethernet Switches
The eps series of industrial Ethernet switches adopts an embedded hardware and software architecture that satisfies the IEC 61850 specification and fully considers the harsh working environment and network communication requirements of substations. Advanced technologies such as carrier-class Ethernet, hardware time stamping, and intelligent content identification are used to make the intelligent substation communication system more reliable and effective against DOS attacks, ensuring the preferential forwarding of goose packets. This device supports IEEE 1588 ptp precise network time synchronization protocol, which can deliver accurate synchronization time for intelligent electronic devices (ie).
2 nsv8000 intelligent auxiliary integrated monitoring system/video monitoring system
The nsv8000 intelligent auxiliary integrated monitoring system uses a unified network and unified specifications to realize data transmission and saves installation costs. Targeted objects are used to handle the linkage between video, fire protection, security, inspection, temperature, lighting, and on-line monitoring of primary equipment. Work, from the traditional passive monitoring mode to the active monitoring mode; comprehensive management of equipment assets, intelligent document capabilities; through the form of sound, light, maps, tables, lines and other forms of auxiliary decision-making system "smart monitoring, intelligent judgment, intelligent management "Intelligent verification" aims to provide technical support for smart grid operation.
1) nsv8000 plant station intelligent auxiliary comprehensive monitoring system
Figure 2 Schematic diagram of nsv8000 plant station intelligent auxiliary comprehensive monitoring system
2) Main station nsv8000 intelligent auxiliary integrated monitoring system
Figure 3 Main station nsv8000 intelligent auxiliary integrated monitoring system
3 wfbx microcomputer anti-locking system
Wfbx microcomputer anti-misoperation locking system combines computer and network communication technology, substation automation technology, anti-misoperation technology, monitoring technology, control technology, etc., to prevent substation field operators from misoperation during on-site operation, so as to ensure the safety of power companies run.
Four successful cases
Since the launch of the substation automation system, it has been widely used in 31 provinces, cities, autonomous regions and Sudan, Thailand, Indonesia, and the Philippines. More than 9000 substation integrated automation systems have been applied in the field, including more than 400 sets of 750kV and 500kV substation integrated automation systems, and more than 2300 sets of integrated automation systems for 330kV and 220kV substations.
The National Wind and Solar Storage Demonstration Project of North China Power Grid is the national “Golden Sun Demonstration Projectâ€. It is the world’s largest renewable energy project integrating wind power generation, photovoltaic power generation, energy storage and transmission engineering. The project plans to build 500,000 kilowatts of wind farms, 100,000 kilowatts of photovoltaic power stations, and 110,000 kilowatts of energy storage devices. The overall construction scale will reach 700,000 kilowatts, and the total investment will reach 12 billion yuan. The North China Power Grid National Wind Storage Demonstration Project adopts a complete substation automation solution provided by the NARI Group, including: Substation Integrated Monitoring System, Computer Error Prevention Latching System, Video Monitoring System, Clock Synchronization System, Relay Protection and Fault Information System , fault recording system, integrated low and medium voltage protection monitoring and control system, industrial Ethernet switch, power angle measurement system and other factory station automation system.
1000kV Jindongnan-Nanyang-Jingmen AC power transmission test demonstration project is the first one million volt UHV test demonstration project in China, in which the Changji 1000kV UHV substation adopts ns2000 integrated automation system and wfbx microcomputer anti-misoperation locking and locking operating system. Wait.
Qingdao Power Company's main station intelligent auxiliary integrated monitoring system uses nsv8000 intelligent auxiliary comprehensive monitoring system. Qingdao Electric Power Co., Ltd. administers Qingdao City and five counties and counties, among which Qingdao City directly manages 130 substations and five counties and a total of 124 substations. The new substations are all designed with intelligent auxiliary systems, and the already-operated substations will be gradually transformed. All substations' intelligent auxiliary systems need unified management and unified monitoring in Qingdao, and realize real-time communication with the dispatching automation system of the municipal bureau, substation status monitoring system, and transmission line monitoring system. The system requirements are designed according to the large centralized control mode. The goal is to build the system into an operation and maintenance management platform that effectively provides technical support for the dispatch center and other production and management departments.
Eps series switches have been successfully applied in more than 1,000 projects nationwide. There is also a 1000kV Jindongnan-Nanyang-Jingmen UHV AC pilot demonstration project substation automation system, computer error prevention and lockout system, and its second phase expansion project; Sichuan Chengdu ultra high pressure network centralized control system; Fujian Fuzhou, Nanping, Sanming, Longyan Regulatory integration of five anti-control system; Gansu 330kV Yongjing smart substation and other successful applications.
Fifth plan provides
Nanrui Group Corporation (State Grid Electric Power Research Institute) is a unit directly under the State Grid Corporation of China and implements integrated operation management. It is China's largest power system automation, ultra/ultra-high voltage direct current transmission, flexible AC transmission, water conservancy and hydropower automation, rail transportation One of the monitoring technology, equipment and service providers. Mainly engaged in power system automation, information communication, ultra/ultra high voltage direct current transmission equipment, flexible AC power transmission equipment, intelligent medium and low voltage electrical equipment, power generation and water conservancy automation equipment, industrial automation equipment, amorphous alloy transformers and wire and cable R & D, design , manufacturing, sales, engineering services and engineering general contracting business.
NARI Group has established industries and production bases in more than 20 cities including Nanjing, Beijing, Shanghai, Tianjin and Wuhan, and has set up 14 overseas branches in 12 countries including Brazil, Indonesia, Thailand, and the Philippines. In the above fields, there are more than 40 product lines and more than 500 high-tech products with independent intellectual property rights, providing more than 50 total solutions for the UHV, smart grid, municipal utilities, industrial control, energy conservation and environmental protection industries. Technical solutions. The market covers all parts of the country and exports 85 countries and regions. The two listed companies of Guodian NARI (600406) and Confidence Electric (600517) have shown a good high-tech corporate image in the capital market.
According to the classification of the shape, Telephone Cable have round telephone cable and Flat Telephone Cable.
The common specification of round telephone cable has two core and four core, the wire diameter has 0.4 and 0.5 respectively, some areas have 0.8 and 1.0.In addition to the two and four cores, there are four, six, eight, and ten cores.
If the general family is the local telephone use mode, 2 chip is enough to use.If the telephone is used by a company or part of a group, it is recommended to use a 4-cell line in consideration of the need for telephone broadband, and a 6-cell line is recommended if a digital telephone is used.
Round Telephone Cable,Communication Cable,Telephone Line,Power Wire
Shenzhen Kingwire Electronics Co., Ltd. , https://www.kingwires.com