Distribution network intelligently improves grid management

With the rapid development of computer and communication technology, the distribution network information management management, through the application of computers, networks and communication technologies, manages and analyzes the state of distribution lines and various types of distribution equipment information collected dynamically. Distribution network information, transparent management.

The composition of the power distribution system has evolved from the initial analog component to today's integrated, multi-functional, more stable, and more reliable low-voltage measurement and control equipment. The power distribution system itself has also evolved into a system of smart devices. This intelligent power distribution device achieves the functions of information collection, processing, local control, information transmission and management, system coordination and optimization.

In the whole link of the smart grid, the distribution network is an important part. Under the traditional model, the carrier of power production management information is drawings, reports, and languages, and the transfer method is manual handover. Under this mechanism, the update of information lags behind the change in production data. In all professional aspects of the power production management activities, the production management information is incomplete, inconsistent, untimely and inaccurate.

The distribution network is intricate and complex, and its operation mode is changeable. The management is restricted by the geographic information system, which restricts the function of the distribution network. Based on this, it is very important to construct a fast, intuitive, efficient and convenient distribution network scheduling support system.

Smart distribution network can make up for the lack of information exchange. Smart distribution network is characterized by large amount of information, online analysis and application analysis in a timely manner. Intelligent distribution network can also effectively improve the working efficiency of production dispatchers through advanced grid rapid simulation, visual tool boxes, intelligent expert systems, etc., while ensuring the reliability of power supply, it can also provide users with their specific needs The power quality not only overcomes the short interruption of power supply caused by fault reclosing and switching operations in the past, but also eliminates the effects of voltage dips, harmonics, and imbalances, and is the normal operation of various high-tech equipment and modern society and economy. The development provides reliable and high-quality power protection.

The high-quality coordinated operation of smart distribution networks depends on intelligent power distribution devices. The design and manufacture of intelligent power distribution devices uses advanced computer technologies, microelectronics technologies, power electronic control technologies, and network communications technologies. The intelligent power distribution device is a high-performance, high-reliability low-voltage power distribution device with automatic detection and automatic detection of power parameters, automatic control and automatic fault emergency processing capabilities, and network communication capabilities.

Intelligent power distribution devices have a high degree of automation capabilities and can be centrally controlled using computers, allowing information to be transmitted between computers and devices in both directions. With the use of intelligent power distribution devices, the operation of the system can be changed only through the keyboard, thus avoiding hidden dangers due to on-site operation and greatly improving the safety of the operation.

In practical work, the intelligent power distribution system can centrally display and print the parameters of the required equipment in the form of reports and graphs. Because the on-site control equipment has the ability of automatic diagnosis and troubleshooting, it can send relevant diagnostic maintenance information to the control room through digital communication, which can analyze the cause of the failure at an early stage and shorten downtime. At the same time, due to the simplified system structure and simple connection, the system maintenance workload is reduced.

The automatic metering management function of intelligent power distribution devices is more superior than traditional distribution networks. Its main performance is as follows: First, it eases the growth of demand. In households or business districts, smart meters collect power consumption data at different times to help achieve time-of-use pricing. Encourage consumers to use less electricity during peak hours, balance the load of the distribution network by encouraging them to avoid consumption, and secondly, reduce the amount of electricity they steal by installing smart meters on the distribution network, which can effectively help power companies determine the location of power theft. , which reduces losses.

In addition, the intelligent power distribution device also provides the telemetering function for the intelligent distribution network. The telemetry function can realize more real-time and more comprehensive power network status detection. It abolishes the point-to-point communication and replaces it with a standard packet network. State-of-the-art status sensors replace simple fault indicators that provide detailed device status information during operation, helping operators determine when the device will fail.

In this way, intelligent distribution networks can not only provide prediction of grid-related data, but also prevent sudden failures. After the accident, the control center can also accurately know where the fault occurred, and dispatch maintenance personnel to protect the electricity consumption of nearby residents.

The smart distribution network will enable the distribution network to shift from the traditional supplier-led, one-way power supply, human-based operation model to user participation, two-way flow, and high degree of automation. With the continuous development of China’s power industry, There will be more and more obvious economic and social benefits.