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Study on Unit Commitment of Energy Saving Generation Dispatch under Power Market

Author: SunHongLing
Tutor: DuXinHui
School: Taiyuan University of Technology
Course: Proceedings of the
Keywords: UNIT Energy-efficient scheduling Dynamic Programming Electricity market Multi-objective Fuzzy Optimization
CLC: TM31
Type: Master's thesis
Year: 2010
Downloads: 95
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Abstract


With the development of China's national economy, the demand for energy is growing rapidly, but faster energy consumption, serious waste, but also aggravate the energy imbalance between supply and demand and environmental pollution. The energy crisis has become an important factor restricting China's economic development and social harmony. Based thermal power of China's power industry is one of the major sectors of the energy consumption and pollution emissions, and hence a change in crew scheduling mode, optimize unit commitment, significant to achieve the goal of energy conservation. In order to meet the requirements of resource conservation, environmental protection, energy-saving power generation dispatching the direction of the development of the power system generation scheduling. First, the paper describes a mathematical model for the unit commitment problem, and then analyze and review various methods for solving unit commitment problem, compared with their pros and cons. Secondly, according to the National Development and Reform Commission issued the \Since the vast majority of China's thermal power units, this paper mainly studied the combination of thermal power units. Thermal power consumption characteristics of the group and the economic distribution of the load is carried out basic information indispensable for combination studies of thermal power units, determination method of analysis of the characteristics and parameters of the consumption of thermal power units of Unit each period using the optimal allocation of power consumption The slight increase of rate rules, programming and other slight increase of consumption rate criterion. UNIT algorithm uses the priority method and dynamic programming combined, and dynamic programming method is improved. Regional electricity market is currently under construction as a the configuration energy resources in China a new institutional arrangement, whether improved power generation scheduling mode, the ability to promote energy saving and the current problems that need attention. The combination of energy-saving power generation dispatching and market mechanisms in the regional electricity market environment, a detailed analysis of the basic mode of operation of the electricity market, the type of transaction and settlement; establish a minimum total system consumption and power purchase electricity costs smallest dual goal unit commitment model; define the membership function of the objective function, the solution to the model uncertainty problem fuzzy maximum degree of dual-target problem into a single objective nonlinear programming problem, and then by LINGO solving software programming. The first paper machine system on IEEE10 calculated simulation of the energy-saving, and the results of other calculation methods were compared, and prove the effectiveness and accuracy of this article given priority method Improved Dynamic Programming wears; then the above participate in running the unit a minimum total consumption of generating units and the whole network power purchase cost of the smallest dual-objective optimization calculation, and the results with the single-objective optimization results were compared, results show that compared to the single target model of the strategy with certainty in it enables the twin goals of the single target slightly retractable considering the better. Finally, the paper combines Shanxi Xin Shuo examples of energy-saving simulation results and the results calculated with the current scheduling mode compared month to save coal consumption 4000 tons to count, Xin Shuo only annual savings coal consumption there are 48,000 tons, showing the energy-saving effect of energy-saving power generation dispatching on the unit is very significant.

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CLC: > Industrial Technology > Electrotechnical > Motor > Generators, large the generator group ( Zonglun,)
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