Modeling With UML And Algorithm For Load Optimal Distribution System Of Thermal Plant

Producing electric power consumes a large of coal; saving coal is concerned key issue for every power plant. Applying load optimal distribution is an efficient way to decrease coal consumption rate of a power plant.Aiming at the current shortage of load distribution in domestic thermal plants, the paper presents a solution with appropriate software theories and relevant implementation based on the fact of load distribution situations in the world. Via building performance model of boiler-turbine unit and using binomial function to simulate the model, the coal consume curve is determined, so it supplies a reliable basis for load optimal distribution.In view of analysis and design of load optimal distribution software, Oriented Object Technique (OOT), UML and ICONIX are used throughout the development process, including requirements analysis, preliminary design and critical design, in order to make the whole process simple, clear and consistent.Based on relevant study and analysis on the several algorithms commonly used in optimizing load distribution system, such as Equal Incremental Principle, Linear Programming, Dynamic Programming and Nonlinear Programming, the Quadratic Programming algorithm is chosen and discussed in this paper because of its suitability in actual application.Additionally, by applying the Matlab optimization toolbox, not only the accuracy is assured, the system real-time ability is also guaranteed, the online load optimal distribution system can be actually built and efficiently reduce coal consumption, and this solution can be widely deployed.