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电站汽轮机热力参数在线监视与仿真系统 总被引:3,自引:0,他引:3
重点介绍了热力参数的在线监测及仿真系统,在该系统中,把仿真技术和人工智能引入到电厂汽轮机系统的经济性管理和相关故障诊断,该技术的应用将有力地提高我国电厂的运行管理水平。 相似文献
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中型火电机组运行监督与生产管理微机系统的研究和应用 总被引:4,自引:0,他引:4
应用微机替代常规的监测手段和人工管理模式,是提高机组运行经济性与安全性,加快电厂现代化管理的重要手段,该文分析了中型机组配用微机系统时合理的功能要求,最佳的硬件配置,系统软件的特点,文中谈到的整套系统在电厂中获得了应用。 相似文献
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通过厦门华夏电力嵩屿电厂1#机组300 MW汽轮组监测系统改造的事例,分析阐述了3500监测系统的优越性及先进性,为其它汽轮机监测系统的配置提供一个范例. 相似文献
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旋转叶片振动参数的非接触测量 总被引:1,自引:0,他引:1
描述了问题的工程背景,整级旋转叶片振幅、频率的测量系统、测量原理和数学模型。给出了在实验室和在燃气轮机机组、电厂在线监测的实例。 相似文献
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针对电厂性能在线监测具有连续计算的特点,分析了再热汽轮机在动态过程中热耗率的在线计算方法。经仿真计算表明,该方法可有效地减少用传统热平衡方法计算动态过程中机组热耗率所引起的不合理偏差,提高了在线监测系统输出结果的稳定性。 相似文献
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小功率航空活塞发动机重油技术进展 总被引:3,自引:0,他引:3
小功率航空活塞发动机是微型无人机系统的主要动力型式,单一燃料的重油使用是未来无人机动力系统发展的必然趋势。结合国内外无人机发展趋势和动力系统型式选择,分析了小功率航空重油活塞发动机的应用需求特点;根据航空燃料发展的单一化趋势,指出了小功率航空活塞发动机采用重油的发展趋势和面临的技术瓶颈;整理了现阶段国内外在小功率航空重油技术方面的不同创新思路和实现型式,分析评估了不同技术路线的应用特点和技术难度。 相似文献
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In modern power plants design, not only high performances but also low capital investments have to be assured so that the final product proposed on the market could be competitive. Starting from this concept, in this work, we have realized a tool for a thermoeconomic evaluation and optimization of thermal power plants which could give solutions to problems connected with the design of real systems.
The model, using three programs and a set of cost correlations (obtained from collaboration with Nuovo Pignone–General Electric), can estimate the realization costs of a combined power plant as a function of the constructive and operation parameters. A test to verify the capacity of our model has been performed by simulating an existing plant. The results seem very good, and this tool will be soon used also in the industry. 相似文献
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This paper addresses overall performance analysis of coal-fired power unit.From the point of view of system en-gineering,a general steam-water distribution equation of the thermal plant system is presented.This system stateequation is an exact expression combining system topological structure and system properties.Through propermathematic transform,the inner relationship and interaction between the main system and auxiliary system arerevealed and its general form is given.An analytical formula for the heat consumption rate of thermal power plantis one direct fruit of the equation,which greatly facilitate the online analyzing and optimizing of complex thermalsystem.The new approach,with the aid of modern data acquiring technology,is a perfect extension of the tradi-tional analysis method based on the First Law of Thermodynamics. 相似文献
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可压缩流体网络技术在电站仿真系统中的应用 总被引:2,自引:0,他引:2
针对火电站实际系统部分流体在流动过程中密度变化大的特点,从基本物理定律出发,介绍了可压缩流体网络的建模方法。考虑了蒸汽、空气、烟气等流体的不同物性、蒸汽在膨胀中湿度变化、散热、摩阻的影响、风机低流量的稳定性和引风系统中煤粉浓度、烟气温度对导纳的影响。该模型已用于大型火电机组的风烟系统和主蒸汽系统的实时仿真。仿真结果表明:模型准确有效地仿真风烟系统和主蒸汽系统的动静态特性,与现场的试验纪录保持一致。该模型适用于电站风烟系统、主蒸汽系统等可压缩流体的全工况实时仿真。 相似文献
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张树臣 《电网与水力发电进展》2013,(12):88-92,97
通过对在2×1000MW机组进行建设的过程中进行技术创新和整体优化设计,实现“优化设计、提高效率、降低造价”,使现代化电厂采用创新的技术对机组工程进行优良设计.取得拧好的绨济神希. 相似文献
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Reliable control of superheated steam temperature is necessary to ensure high efficiency and high load-following capability in the operation of modern power plant. This is often difficult to achieve using conventional PI controllers, as power plants are nonlinear and contain many uncertainties. A nonlinear generalized predictive controller based on neuro-fuzzy network (NFGPC) is proposed in this paper, which consists of local GPCs designed using the local linear models of the neuro-fuzzy network that models the plant. The proposed nonlinear controller is applied to control the superheated steam temperature of a 200-MW power plant. From the experiments on the plant and the simulation of the plant, much better performance than the traditional cascade PI controller or the linear GPC is obtained 相似文献
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四川内江白马发电总厂高坝电厂410T,H循环流化床锅炉系芬兰奥斯龙公司(Ahlstrom)制造,是我国首座循环流化床锅炉环保示范电站。本文介绍了该锅炉的设计特点,对国内同类型锅炉的设计和运行具有指导意义。 相似文献