The Study Of Measure And Control Device In Eletric Power System

With the rapidly development of microcomputer and power electronic technology in electricity, various IED device has been used in substation,especially in high voltage class substation.new mode of substation automation has been more and more applied ,traditional mode of Remote Terminal Unit is not adaptable to the demand of today's electric supervisory system.measure and control device is developing to object-oriented and integrating many functions together.the device is not only a traditional measure and control device ,but also a information collecting and mananging center.The paper begins with analyzing the development of electric measure and control device in electric power automation system , comprehensive sum up the actuality of measure and control device in high voltage substation.systematically analyse the principle and relevant new technology,and put forward the resolution resovling method and implementing project.In design many new technologies were applied,the design of hardware and software according to international standard ,which made the opening of device was guaranteed,at the same time,advanced the resolvent of reliability of device meet future physical and functional station requirements. All substation device data is integrated, coordinated and made available to as many host systems or users as needed. Substation Automation Solutions has enhanced its multifunction for substation control by adding several new features that increase the flexibility of the appliance, improve performance and ultimately reduce lifetime ownership costs for the end user. the addition of the new features, combines several new features that are now available in a single substation controlle:it functions as a programmable logic controller, substation LAN node, IED gateway, revenue class meter, power quality monitor and fault/event (waveform) recorder. the product has complete flexibility to build a reliable, powerful and versatile system capable of handling monitoring, control, automation and communications in the distribution substation to the largest transmission station.The function tests by using the software and hardware indicate that the functions of device completely meet the requirements of design.