火电厂机组优化组合的研究-热能工程专业论文.docxVIP

华北}乜力人学硕十学位论文摘 华北}乜力人学硕十学位论文 摘 要 随着国家产业结构调整和电网负荷峰谷差的日益增大，研究火电厂内的机组优 化组合问题就具有重要的现实意义。本文针对火电厂的实际运行情况，对采集的天 津大港电厂的机组数据进行了煤耗特性曲线拟合；研究了机组启停过程中的各项能 量损失及其计算方法，建立启停损失经济计算模型；提出确定机组调峰方式的时候 应综合考虑机组的启停能耗损失和寿命损耗；建立了机组经济组合的数学模型，并 结合机组运行的经济性和安全性考虑了多个约束条件；提出运用遗传算法来解决负 荷经济调度的问题，并根据本课题的需要对其进行了适当的改进，设计了一套完整 的算法；编制了遗传算法程序，并通过算例证实了遗传算法的准确性和优越性，说 明该算法有很好的实际应用和研究意义。 关键词：启停损失，机组优化组合，遗传算法 ABSTRACT with the adjustment of the industry structure and the difference between the peak and the vale in the power-using load has become greater,the research on the optimal unit commitment of thermal power plants to minimize the ruel consumption become more practical significance． nis paperfocusing on the practical moving condition of the thermal power plants．did the curve fitting according to the units data collected from Tianjin Dagang Power Plant．Then the paper studied the each fuel lOSS in the process of start．stop the units and their calculation methods，and set up the start-stop lOSS economical calculating model and put forward that fuel consumption and life expenditure while start and stop the units should be considered when using peak—load regulation．The paper also built the mathematical model of plant’S optimal unit commitment，and took several restrictions under consideration in the light of safe and economical units operation；put forward Genetic Algorithm to solve the problems of optimal unit commitment．as well as improved it for the needs of my research；worked out,the GA program and proved GAs accuracy and superiority througll the calculation examples，and showed that GA had great practical and research meaning． Zhao Leqiang(Thermal Engineering) Directed by associate professor Zhu Ping KEY WORDS：start-stop loss，optimal unit commitment，genetic algorithm 华北}乜力人学硕十学位论文摘 华北}乜力人学硕十学位论文 摘 要 随着国家产业结构调整和电网负荷峰谷差的日益增大，研究火电厂内的机组优 化组合问题就具有重要的现实意义。本文针对火电厂的实际运行情况，对采集的天 津大港电厂的机组数据进行了煤耗特性曲线拟合；研究了机组启停过程中的各项能 量损失及其计算方法，建立启停损失经济计算模型；提出确定机组调峰方式的时候 应综合考虑机组的启停能耗损失和寿命损耗；建立了机组经济组合的数学模型，并 结合机组运行的经济性和安全性考虑了多个约束条件；提出运用遗传算