Development And Research On Smart And Interactive System Of Relay Protection Setting

With the development of electric power industry, the scale of power plant and the capacity of single machine extend continually, What to follow is relay protection setting continuously renew that enables the software of relay protection not to adapt the protection device nowadays, it increases difficulties of users who use relay protection setting software. So, developing a system of relay protection setting calculation and management for power plant plays an important role in reducing the work of the relay protection workers, decreasing the percentage of protection device's false action. It's helpful to enhance the efficiency and validity of relay protection setting calculation.In this article, a smart and interaction system used for relay protection setting computation of power plants is proposed based on Visual Basic 6.0 and Access database. Through interaction of relay protection setting flat users can make his own setting process, synchronously smart help system gives users help information continuously, which lower the user's difficulty, finally make use of the VBA technique output whole detailed setting process to Word. The Word will make checking setting list easy.This system adopts Object-Oriented and blocking technique, It is composed of graphics model, fault analysis, protection setting computation, datebase management, setting dispose. This article introduces the model, design thinking, carries out methods of interaction of relay protection setting flat. Explain the knowledge of the fuzzy maths, natural language processing etc of smart help flat.This system has strongly all-purpose characteristics, easy operation, friendly interface etc. It has been used in Feng Man power plant and all targets were achieved.