Research On Construction Cost Control And Optimization Of Electric Power Project

The economic development of our country has entered the stage of rapid development.As the basis of economic development,the power supply system is facing new opportunities and challenges.The emergence and development of smart grid meets the growing demand for power supply stability.With the development of computer technology and network communication technology,the concept of smart grid not only stays in the long-distance transmission network,but also gradually develops to the distribution network.The reliable support of the substation,which is the intermediate hub,is particularly important.Smart substation is the hub of local power supply.As the most important switching station for power operation,the reliable operation of smart substations is the foundation for the realization of strong distribution network,which directly determines the reliability of network power supply.Therefore,this paper designs the X substation of Nanchang city once and two times according to the power distribution and demand of the city of Nanchang.Firstly,through literature review,the development history of Smart Substation and the research at home and abroad are elaborated,and the development direction of Smart Substation is concluded as good interaction,reliability and energy saving.Secondly,the structure and key technology of intelligent substation of intelligent substation design discussed the intelligent substation based on IEC61850 standard,the substation primary equipment and two equipment for Internet communications,in which the key technique is the intelligent intelligent communication between the equipment and power equipment,according to the monitoring software to realize interconnection.Intelligent monitoring of the running state of the equipment.Then,the one or two times of the intelligent substation are designed respectively.According to the electrical main wiring,the short circuit current.The transformer capacity,the number of table and so on are calculated and selected,and the primary electrical equipment is determined.In the design of the two times on the basis of a mining equipment design framework,application of the intelligent substation,the substation design,including power metering system,automation system,communication system,clock synchronization and intelligent aided system,intelligent communication system was designed.Finally,this paper summarizes the pre research technology applied in the design,mainly for the integrated monitoring system and the application of all optical fiber current transformer and optical voltage transformer in design.