浙江大学博（硕）士学位论文 摘要 Summary:Ruian is located in the coastal developed areas in Zhejiang Province;Ruian is a large county-level power grid.This article dedicated to the research optimization Ruian dispatching automation system for security and stability of Ruian grid. Ruian dispatching automation system composed of the main station, communication system,and plant station,this article describes these three aspects of their profile,analyze its shortcomings and put forward the main station system optimization,implementation of the voltage and reactive power centralized control system to enhance security master station system optimize the communication systems and so on. Through the organization of the implementation of these measures, Ruian dispatching automation system from the master the transition to a next-generation NT2000 systems ON2000 system,stable operation. According to communication and application sectors,not only to achieve the basic SCADA functions,but also for the warning system,monitoring plans,shift relief work has been optimized so that system applications continued to deepen.Centralized control of reactive power and voltage to achieve practical results -to reduce labor intensity and improve voltage qualification rate.The system significantly increased the level of security protection,secondary system security vulnerabilities have been restored,Supply security risk Eliminated, the main station data for security backup,and enhanced emergency response capabilities.Communication system has been optimized;the capacity expansion of fiber-optic cables,path optimization, communications equipment,design of reconstruction work is completed and adopted the joint trial. Finally,according to this article can not be completed during the study period,as well as the development of new technologies is proposed I浙江大学博(硕)士学位论文 摘要 Su姗ary：Ruian is 10cated in the coastal deVeloped areas in Zhejiang ProVince； Ruian i s a large county—leVel power grid． Thi s article dedicated to the research optimization Ruian di spatching automation system for security and stability of Ruian grid． Ruian dispatching automation system corrlposed of the main sta七ion， communication system，and plant station，this article describes these three aspects of their profile， analyze its shortcoIrLings and put forward the main station system optimization， impl鲫entation of the V01tage and reactiVe power centralized contr01 system to enhance security master station system optimize the co姗unication systems and SO on． Through the organization of the implementation of the se measures， Ruian dispatching automation system from the master the transition to a next—generation NT2000 systems 0N2000 system， stable operation． According to co姗unication and application sectors，not only to achieVe the basic SCADA functions，but also for the warning system，monitoring plans，shift relief work has been optimized so that system applications cOntinued to deepen．Centralized control of reactiVe power and Voltage to achieve practical results—to reduce labor intensity and improVe voltage qualification rate． The system significantly increased the level of security protection， secondary system security vulnerabilities haVe been restored，Supply security risk E1iminated， the main station data for security backup， and enhanced emergency response capabilities． Communication system has been optimized； the capacity expansion of fiber—optic cables， path optimization， cor【lr【lunications equipment，design of reconstruction work is cornpleted and adopted the j oint trial． Finally，according to this article can nOt be completed during the study period，as well as the deVelopment of new techn0109ies is proposed Ⅵ