Electrical Design Of Suizhong66kV Intelligent Substation

This design was adopted for the purposes of the power system of knowledge onelectric design of SuiZhong66kV substation. First, through analysising several typicalcharacteristics of main electrical connection scheme, summary of comparison of varioustypical operational flexibility and reliability of main electrical connection scheme,determine the main electrical connection scheme of suizhong66kV intelligentsubstation.According to the electric power system substations construction requirements,selection requirements and suizhong power substation main transformer load status, loadforecasting, user requirements for reliability, determine the number, capacity and type ofmain transformer. Secondly,by short circuit current calculations, to select the mainelectric substation equipment, and verify its thermal stability and dynamic stability andsuizhong66kV substation lightning protection and grounding design and validation.Finally, designing AC and DC systems of SuiZhong66kV substation, designingSecondary electric design system of SuiZhong66kV substation.SuiZhong66kV substation is Indoor design scheme of intelligent substation."High-voltage equipment+intelligent component" mode, GOOSE and intelligentcomponents used for in-place network equipment connected to the intelligentcomponents by point to point directly to receive individual protection device tripping ofthe interval command implementation trip; While, Provides a fiber optic networkinterface network access layer, every location of the device provider and alarminformation and receiving control device control command. The open structure ofhierarchical distributed network of substation automation system, logically from stationcontrol layers, every layer, layer and network equipment.Station control systems usinghighly integrated, configure the IEC61850standard monitoring and telecontrol system.Integrated monitoring and control system engineering station, five anti-integration,program control, grounding line selection, and other functions to achieve harmonizationand intelligent information platform for intelligent substation. Network with a starstructure.Wall of main transformer protection configuration to order. Main protection using separate device, Integrated device to the backup protection and control.10kV partconfigurations protection measurement and control everything-in-one unit ofmeasurement for the protection, monitoring, measurement, open into the open, SMVaccess functions. Configure an intelligent computer-aided control system for substationvideo security monitoring, fire alarm, fire protection, dynamic environment of intelligentcontrol, lighting and ventilation systems. Station substation integrated AC-DC powersupply system fully integrated with the power, AC, DC power systems, power systems,communication power supply system design of inverter power supply system. IntegratedAC-DC power supply system for station power source information sharing, theestablishment of a platform for digital power digital power supply hardware and softwareplatforms. Integrated monitoring module via the Ethernet interface, IEC61850systemcommunication between the computer and the Statute, the station became an open systemof power supply system.