| With the constant development of computer and digital communication technology in particular,area centralized control of 500kV substation has become an inevitable trend in the development of power system. The operation management mode of southern Hebei grid 500kV substation aimed at centralized control and less-attended operation makes the integrated automation system transformation of Cangxi 500kV substation become necessary.This thesis researches the development and future of 500kV substation integrated automation system at home and abroad, makes an intensive study of its hardware structure, monitoring system, microcomputer protection device and digital communication, then designs the hardware, software and communication network of Cangxi 500kV substation integrated automation system. Monitoring and control device is the core of substation integrated automation system, therefore the analysis of it is emphasized particularly in this thesis, moreover, the video surveillance system which is used to assist the substation integrated automation system has been designed. Fnially the thesis provides solution to the transformation of Cangxi 500kV substation integrated automation system. |
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