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Research of Plant Load Economic Dispatch Based on Dynamic Programming Algorithm

Author: LiChangGeng
Tutor: SuJie
School: North China Electric Power University
Course: Control Theory and Control Engineering
Keywords: Automatic Generation Control Economic Load Dispatch Dynamic Programming Data fitting
CLC: F426.61
Type: Master's thesis
Year: 2011
Downloads: 95
Quote: 0
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Abstract


With the continuous deepening of reform of the electric power industry, the electricity market in the process of gradually accelerating. In recent years, the power production and operation gradually transformed into the operating mode of the power generation side of the market competition, the electricity production of some new problems, such as rising coal prices, power generation companies to suffer losses in production are not enthusiastic. Specific requirements of the pursuit of economic efficiency in the environment of the electricity market reform, combined with power generation companies, research and analysis of the dynamic programming algorithm applied to the plant-level Economic Load Dispatch and SDIC Qujing Power Plant Economic Load Dispatch system of economic distribution verification. The determining unit power supply coal consumption characteristic curve is the plant-level economic load distribution based on the characteristics of load distribution system according to the SDIC in Yunnan Qujing Power Plant, the coal consumption for power supply units in each operating point parameters least squares fit to come to power supply coal consumption of the whole plant characteristic curve; algorithm analysis showed a slight increase of the rate law special restrictions, therefore, the load economic quadratic coefficient characteristic curve of the coal consumption for power supply allocation algorithm using dynamic programming method to supply coal consumption characteristics curve less demanding; then build minimum total coal consumption of the whole plant unit supply the target mathematical model, using the dynamic programming method under given constraints load economic allocation. After the load instruction from the whole plant load allows the lower limit to the maximum load allows for economic distribution, concluded: dynamic programming method can find the optimal solution for load distribution; economic load distribution results show that the dynamic programming method can to optimize the operation of the whole plant unit to some extent, so that a better performance of the unit with more load, the poor performance of the unit with a lower load, in order to ensure the economic unit operation of the whole plant. The Qujing Power Plant Economic Load Dispatch System introduced in detail, it is to achieve the load online real-time allocation application platform and achieving. The paper outlines the structure of Qujing Power Plant load distribution system as a whole, the system is described in the hardware, software, data acquisition, system monitoring, operation screen, specific methods of operation and the function , pointed out that the Qujing Power Plant Economic Load Dispatch System will be a win-win system grid, power plants, an energy-saving scheduling.

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