| With the rapid development of smart grid, the operation mode of the traditional substation has also changed significantly, with a intelligent substation equipment, the network of the secondary system in accordance with the general trend of power grid construction. In intelligent substation, optical fiber transmission mode to replace the cable transmission mode, network communication mode replaced the point to point communication mode, merging unit, intelligent terminal, electronic transformer is equipment the use of accelerated the informationization and digitalization of substation process. At the same time, the intelligent substation secondary system debugging method also has changed obviously, the new integrated test link, the scene debugging link also has added the new content. Construct a correlation between equipment, realize the functions of control and protection, to test the overall operating performance are intelligent substation before the need to complete the work.Firstly the development situation at home and abroad of intelligent substation are discussed, the intelligent substation secondary system debugging work points for integration testing stage and site commissioning phase, focuses on the study of integration testing stage configuration, monomer debugging, system debugging, the background system commissioning, appearance before preparation etc. link test key and test method. Then, the paper aiming at the scene debugging work study, focuses on the analysis of intelligent substation site debugging link with the traditional substation site debugging link different working content, and research on intelligent substation site debugging special equipment.Combining in 220 k V Shebotu intelligent substation secondary system debugging problems encountered in the work, put forward the improvement scheme,design and development of the a set of convenient operation, practical function of intelligent substation operation maintenance software, to improve the methods of work, change the mode of work, reduce errors, improve work efficiency, reduce the cost of the work, for the future of intelligent substation work development to lay a solid foundation. |