The Design And Engineering Realization Of Integrated Automation System For Substation

With the continuous development of science and technology, the control ability of our country’s electric power industry has improved a lot. Also the integrated automation system technology of substation is being completed, and has entered the practical stage. Substation automatic control system is based on the technology of computer hardware, data communication and module software. It is a microcomputer control system which combines control, measuring, protection and remote function.In Shougang Qian An steel, based on the integral planning and the actual situation of the cold rolling project, this paper has made profound exploitation and overall design of the automation system setted in 23 10～35kV new substation. The total frame of a master station to multi substation mode with a centralized control heart has been designed by a way of integral planning, staging execution with performed units. The global frame of the system has spacing layer, communication layer and monitoring layer with distributed and layered structure.In this paper, overall exploitation and design has been giver for the substation microcomputer protection system of hardware components, software program, the protection algorithm and the function requirement, the most widely used Fourier microcomputer protection algorithm are studied and described as a key point, according to the actual situation primary equipment in actual engineering, the specific configuration design scheme of the different types of protection and monitoring device is given.PC upper monitoring system in substation automation system plays an important role. Based on the analysis of hardware configuration, software system composition of the upper monitoring system using a hierarchical, modular structure program design idea, the background monitoring system is mainly divided into eight functional module to design, and each module are described.The communication network is an important part of the substation automation system. Based on the system research of communication network, the communication system scheme which meets the project actual situation has been put forward, also solved the problems of communication interconnection and telecontrol communication.According to the overall design, through construction step by step, finally 23 new substation’s automation system has been finished in engineering realization. The practical application shows that, the overall performance of the system meets the design requirements, which greatly enhance automation management level of the enterprise, and achieved good results in the economy, safety, reliability. Especially through the unattended mode implementation and promotion, synergism of depletion of numbers, remarkable economic benefits is created for the enterprise.Finally, through the analysis of the advantage, difficulty and problem existing in the practical design and application of substation integrated automation system, the paper gives a systematic summary, the relevant improved step, and the suggestion pointing out the direction of succeeding project in substation automation.