General Design Research of Intelligent Substation Equipment Interface Based on Modular Construction

With the implementation of modular intelligent substation construction, the standardization of equipment interface is becoming more and more important. In this paper, the influence of modular construction on intelligent substation structure is analyzed, and the requirements for functions and interfaces of intelligent high-voltage equipment are given. Then taking the high voltage switch combination equipment as an example, the design method of the high voltage equipment interface considering the modular construction was studied. Finally, the interface design method and interface test flow of the intelligent high-voltage equipment are presented, and the gas insulated switchgear (GIS) is taken as an example to analyze the work. This type of interface design is suitable for modular intelligent substation structure, can realize the integration of protection, measurement and control, and can achieve cross-interval function concentration. The interface is based on IEC 61850 standard and has good expansibility and economy.