【作者】 朱正林；

【导师】 徐治皋；

【作者基本信息】 东南大学 ， 动力机械及工程， 2005， 博士

【摘要】 本文对电站辅机、辅机系统以及相应的管网系统的性能进行了全面的分析研究,结合动态规划、Agent人工智能等技术来实施电站辅机、辅机系统以及相应的管网系统的性能优化,以达到降低厂用电率的目的。主要内容为:首先,在电站主要辅机及辅机系统的标准性能试验的基础上,对各性能数据的测量方法、测点布置等进行了研究;结合在线实时的性能数据测量遇到的问题展开讨论,提出符合生产需要的在线性能测试方式和采用静压差来测量大流量的方法;同时还对性能模型进行了简化,给出符合电站在线性能优化的性能模型。接着对电站辅机及辅机系统的运行性能和稳定性进行了分析。针对电站辅机及辅机系统的运行特点,提出合理辅机及辅机系统稳定性判断方法;同时对电站辅机及辅机系统的调节方法进行了全面的比较,为发电厂辅机及辅机系统的设计、运行提供依据。其次,对电站的主要厂用电能耗对象――泵与风机进行性能优化,包括单一对象和联合运行对象。运用动态规划方法并建立相应的数学模型,分别对转速变化、进口导流器叶片角度变化和叶轮叶片角度变化的泵与风机进行性能优化。同时,通过对人工智能技术Agent及多Agent(MAS)系统的研究,应用Agent的优点,从总体上对辅机及辅机系统性能实施优化。由于管网系统及相应的管道部件对辅机的性能影响很大,本论文通过试验研究、现场测量及理论计算等手段,对风机的进气箱、轴流风机出口整流体、烟囱水平烟道、管道三通、弯头、进口和出口型式等分别进行了结构调整或者改进,提高管网性能,达到全面优化电站辅机及辅机系统的目的。更多还原

【Abstract】 The performance optimization of the auxiliary equipment, auxiliary equipment system and pipe network system in power plant are studied and analyzed in this thesis by applying the dynamic program, Agent etc. The aims of the optimization are to reduce the auxiliary power rate. The main concerns of this thesis are as follow:Firstly, the measuring methods, the real-time performance tests are discussed on the basis of the standard performance. In order to get the exact flow, the static- differential-pressure method is put forward. At the same time, the briefed mathematic models are used to optimize the auxiliary equipment performance. Secondly, the operation performance and the stability of the auxiliary equipment are analyzed according to the characteristic and some rules are given. And then regulation styles are compared so as to select the energy-saving equipment and system. Thirdly, as main energy-consumption units in power plant, the performance optimization of the pumps and fans are carried out. For getting good performance optimization consults, the important mathematic models based on dynamic program are put forward about the rotational speed and adjustable vane pumps and fans. At the same time, Agent and multi-Agent are applied, thus make the performance optimization system manage easily and use conveniently.Fourthly, for developing the all network performance, the forms and the structures of the air-inlet room, the rectifying devices, the chimney, the duct, the three-way duct, the inlet and outlet styles, etc, are improved. Thus the performance of the auxiliary equipment, auxiliary equipment system and pipe network system in power plant has been optimized.更多还原