Study On The Programmed Operation In Unattended Substations

The program control of unmanned substation is the direction for future development of Substation. It uses the computer technology, electrical control technology, communication technology and power electronic technology to make the substation performing various operations by remote control. It can realize the unattended substation. It saves manpower cost. It could also decrease the accident caused by incorrect operation. It improves the safety and stability of the substation control. This paper introduces the related technology of unmanned program control substation. It makes an in-depth study of the mechanism model of the programmed control substation, analyzes the implementation scheme of substation program control.It discusses the process of transformation and upgrading of traditional substation contr ol procedures and matters needing attention. The future substation will use the program control and realize unattended operation. So the research on substation program control is significance.It introduces the related concepts of substation program control, points out the advantages and necessity of substation program control, analysis and comparison the differences between the traditional substation and program control of substation. It analysis the realization of the foundation conditions of the program control substation. It researches three ways to control the implementation procedure, compares their advantages and disadvantages.It researches the substation program functional requirements of control software. The realization of the substation program control is ultimately based on the software design for all kinds of equipment operation. So the control software needs to contain a variety of functions. This article introduces the functional requirements of program control software in detail. It introduces a new requirement for the video monitoring system program control. It requires the video surveillance to identify all kinds of fault states and tracking it timely. The video surveillance system should cooperate with the controlling software in the programming control substation. Every step of switching operation should have the corresponding video monitoring to track it, in order to achieve the effect of site monitoring.In the end of the paper,it takes the upgrading of the Shuangli 220KV substation as an example. It introduces the basic situation of Shuangli substation. It talks about the problems of the host redundancy backup, line layout and wiring, equipment installation and commissioning. It introduces the process of upgrading program of substation and the relevant matters needing attention.It summarizes the needs of upgrade subsystem combined with the NS3000S system of NARI company.