Research And Application Of Regional Power Dispatch Technical Support System

With the continuous expansion of Jieyang power grid,the new substation increases,combined with the original substation are also upgrade,the new equipment of the terminal to the requirement of information transfer also is increasing,various functions but also rely on more reliable and more stable,more comprehensive system support,the power grid dispatching automation system also becomes especially important.Jieyang area has 500 kV transformer substations,the 220 kV transformer substations,15,110 kV transformer substations,44 the puning,paying,Jiedong and Jiexi four counties have been implemented with adjustable intensive,adjustable volume surge in jieyang,through constant substation integrated automation transformation in recent years,at the same time have a microprocessor-based protection and substation unattended mode.On this basis,it is necessary to build a set of automation system that can reliably operate and monitor the operation status of each substation in real time,so that the dispatcher and operator can understand the operation status of substation equipment in real time in the control center and conduct remote control and other operations in real time.According to the characteristics of power network,a suitable automatic system of power network dispatching-technical support system of distribution power dispatching is developed.With electric dispatching technical support system to distribution network operation control and management system with big operation and maintenance of app lication of the main body,following its latest distribution master station system architecture specification,in accordance with the county integration deployment,according to the principle of partition acquisition improved border protection,security ac cess fiber/wireless,such as public/private network communication mode of three remote terminal,remote terminals and fault location device,control regions across the production and management information supporting capacity,regional integration build based on power distribution network analysis model and operating data of a new generation of power distribution network dispatching support platform,It provides an integrated application for operation control and operation and maintenance management to meet the needs of dispatching control and equipment status monitoring of the distribution network.The system realizes the integrated architecture and intensive construction of prefecture-county,supports cloud storage,cloud deployment,cloud computing and ot her cloud technology applications,and realizes the real-time business cross-region two-way and efficient collaborative management and control through multi-area acquisition.The system architecture is based on the parallel massive data processing technolo gy of distributed real-time database,with a capacity of up to millions.At the same time,it supports the active distribution network,realizes the self-healing control of the distribution network,the access and application of distributed power supply/en ergy storage device/micro grid,and can easily realize the feeder fault processing display based on mobile APP.Support 61850,realize the information fusion and remote management with distribution terminal,and realize the fault analysis of distribution terminal transient recording information;SCADA application based on GIS service supports baidu map,which can greatly improve the accuracy of grounding fault location of distribution network.It realizes data sharing and process approval with EMS,PMS2.0 and other systems through information exchange bus,and manages lean.In this paper,the technical support system for power distribution dispatching is analyzed in depth.At the same time,the system’s functional configuration is combined with the operation characteristics of jieyang power grid,and the deficiencies are discussed to lay a foundation for the subsequent system upgrade and power grid development.