Research On Related Technology Of Real-time Monitoring For Low Voltage Network

In recent years, with the high speed development of urbanization and science technology, a lot of new energy equipment are emerged such as new mechanical equipment, new electronic products, photovoltaic generation etc. at the same time electricity load and the power demand is ever increasing,specially the demand of industry and resident for power supply quality is higher and higher. With the constant improvement of using electricity consciousness for power customer, voltage qualification rate has been attracting increasing attention; the speed efficiency for first-aid repair in electric power are required higher and higher, Therefore, the requirements of emergency repair are clearly put forward on State Grid, which can turn a need for urgent repair (passively) into a preventive maintenance (actively) and enhance the reaction speed and judgment ability of emergency repair so as to improve the service level. however, the low voltage grid equipments are numerous and dispersion, electricity load is inevitable randomness, but also with the continuously increase of distributed generation which brings lots of effect for power supply quality, low voltage power network structure is more complicated which making power supply company face great pressure in enhancing power supply quality.With the Intelligent construction in distribution network constantly advancing, the deepening application and overall construction of Intelligent Electric Grid In distribution network have been finished progressively, which realised the online monitoring the real time data about the voltage, current, switch state etc of Equipment in Distribution Network and realised scientific analysis hidden trouble of Equipment in Distribution Network. According to a lot of real time data about the distribution network operation, it offers data support for condition-based maintenance of Distribution Network which lay a solid foundation. It realises fault and hidden trouble of distribution network early warming, increases power supply reliability and improves the repairing speed, improves the maintenance and management level in distribution network, supply electric power resource with qualified quality and reliable and steady.According to work experience in low-voltage power grid operations management in recent years, based on the extensive investigation on the current situation of the operation and maintenance management for low voltage power network, combining with the practical work and its requirement of low voltage power network operation, the bottlenecks of the operation and maintenance of low voltage power network are researched and analyzed. Take the application and management idea of the advanced information technology in main network and distribution network as reference, distributed computer and broadband inter carrier low voltage terminal technology are fully utilized to desigh every key technology linkb and modification scheme and analyze the implementing scheme, practical application, target achievement and extending function of real-time monitoring technologies for low voltage power network.