The Visualization Design And Implementation Of110kV Power Grid Dispatching Arrangement System

With the development of modern power system and improvement of people’s living standards, power supply reliability and economy, from views of power users and power sector, are increasingly becoming important, which makes power scheduling a part of growing significance in the daily operation. It is necessary to take all thefactors involved into consideration, especially in the face of ever-increasing complexity of power grid and huge amount of data collected, to ensure that the power system is in a good shape. It is very difficult to grasp the state of the whole system because of the build-in constraints, random factors etc. Relying on advanced visualization technology, which converts complex data into visual images and graphics, system operators can know the current state of the system, work out a optimal path for maintenance, choose the best operation mode.With this background, this paper does a research in visualization technology and illustrates various concepts as basic concepts, essential characters and key technologies in visualization. This paper also includes image generation and image control, visualization development environment and TWaver Web based graphic data realization. Based on the component characteristic in TWaver and the connections between models and data in hand, this paper gives way to generate1network modules automatically, and hence reduces the amount of work required.This paper makes it reality to display power flow graphically by using P-Q decomposition method together with automatic topology generation module.By displaying the results of comparison of calculated numbers and preset thresholds, the operator will know whether the system is in desirable state or not and proceed,if necessary, to take proper actions.Finally, according to maintenance plans and N-lprinciple with various security constraints, this paper uses importance index to optimize maintenance time, and relative weight to do maintenance repair path optimization. Based on presentation of calculated results and TWaver related techniques, the operator can view the maintenance plan on graphics.On top of that the operator can get easily get related information regarding maintenance plans and do it with reduced amount of work and increased degree of safety.A TWaver technology based power scheduling intelligent management system has been deployed in the Electricity Board in Zhengzhou city. The operation records show the TWaver is suitable in such applications.