Design Of Integrated Automation System Of 110kV Substation In Zhongzhuang

With the development of technology, the power grid industry is becoming more and more intelligent and now serves as an important part of domestic energy strategy. In the entire intelligent power grid system, the intelligent substation plays a crucial role as it can largely promote the intelligence progress of power grid industry.Intelligent substation features intelligent equipment with which the information can be shared within the station and with other remote stations through the integrated automatic system monitoring and protection functions, so as to realize stable and safe running of the substation.The integrated automatic system of substation is not only an important part of the substation secondary system but also a crucial tool to guarantee the safety and economic efficiency of the substation. It works to introduce computer,control, internet communication and other technologies into the substation secondary system and apply advanced computer monitoring system to finish the control, the measurement, the protection, the metering, the remote operations and other work. The combining of various different types of technologies has fully developed the application value of computer, communication, automation and other technologies.This thesis takes the intelligent substation of 110 kV in Zhongzhuang as the research target. Firstly, it makes a description on the integrated automatic system of intelligent substation in structure and in technical specification, introduces the current research situation of this area, and explains the features and technologies applied in the target substation. Secondly, this thesis makes a research and design of the substation integrated automatic system based on the actual needs in application. The internet monitoring, microcomputer protection system and debugging are finished. Through debugging, the work condition of the secondary equipment is known. Besides, this thesis makes an introduction to the information integration system, the main transformer protection, the circuit protection and other functions of the equipment and gives a detailed explanationon the debugging of this equipment. Furthermore, it makes an analysis on the mal-operation problems exposed during the debugging and provides specific solutions. Finally, this thesis concludes the overall design of the intelligent substation secondary system. The research results of this thesis are of positive meaning to improve the debugging and maintenance of intelligent substation secondary equipment effectively.