基于组态软件的闭式循环柴油机(CCD)监控系统设计

介绍了一种针对闭式循环柴油机系统(CCD)的运行要求，以组态软件为基础，采用模块化设计思想组建的闭式循环柴油机监控系统的设计方法。该系统能直观显示系统组成和系统工作过程，实现数据实时采集记录，显示系统重要状态参数，发生故障时能及时报警处理。为改善CCD配氧控制的动态特性，系统实现了配氧的前馈补偿以及配氧反馈PID控制参数的优化。该系统人机界面(HMI)友好、功能齐全、操作便利、工作可靠，扩充灵活方便。     

大型风电场的监控系统

本文介绍了大型风电场监控系统的控制要求，详细说明了监控系统的基本内容，包括通讯方式，上下位机硬件匹配，抗干扰研究及监控软件的编制，同时介绍了系统的总体设计方案。     

电力负荷监控技术应用研究

阐述了我省应用负荷监控技术现状，研究分析了负荷监控系统的技术发展，对同荷监控系统及应注意解决的问题进行了探讨。     

槽式太阳能聚光器能流密度测试系统研制技术

设计一种用于槽式太阳聚光器焦线能流密度测试系统,系统主要由余弦反射体、CCD光学测量系统、导轨及调整系统等组成。首先在实验室内采用辐射标定装置对余弦反射体和CCD光学测量系统进行精密标定,得到CCD光学测量系统灰度与能流密度定量关系;然后再用该系统对槽式太阳聚光器焦线能流密度进行测试。介绍该测试系统的标定方法和各部分设计关键技术,通过外场定量测试的方式对该测试系统进行检定后,能流密度测试误差优于5%。     

电力负荷监控技术应用研究

阐述了我省应用负荷监控技术现状，研究分析了负荷监控系统的技术发展，对组建负荷监控系统及应注意解决的问题进行了探讨。     

插值标定的CCD比色测温方法

介绍了CCD电荷耦合器件和CCD比色测温原理。为减少测温误差，把波长带宽等误差归结到测温公式中的K值中，提出了利用标定实验数据对测温公式中的K值进行插值标定的比色测温方法，给出了插值标定的CCD比色测温的数学模型。     

基于组态软件的风电场远程监控系统的研发

介绍一种基于组态软件的风电场远程监控系统的设计与开发，阐述了该系统的组成和功能特点，详细说明利用组态软件开发远程监控系统的过程．并给出了现场应用的实例。     

锅炉实时监控系统的研究与实现

阐述了一种基于C／S结构的锅炉实时监控系统的设计和实现。给出了所使用的软件环境和开发工具，监控系统的功能设计，以及具体实现中的问题和各种解决方法。     

生物质气化试验台监控系统设计

介绍了山东省能源研究所自主设计的生物质气化试验台监控系统，阐述了该系统的设计思路，软、硬件组成等，为其他生物质试验台自动化监控系统的设计提供了借鉴经验。     

燃气发电站远程监控系统

燃气发电站远程监控系统利用网络技术和计算机技术实现了三个方面的功能，即对现场的视频监控、对燃气发动机的远程监控和发动机运行参数数据的远程传输，经过现场使用证明，取得了良好的效果，提高了电站的综合管理水平。     

Numerical simulations and analyses of temperature control loop heat pipe for space CCD camera

As one of the key units of space CCD camera,the temperature range and stability of CCD components affect the image's indexes.Reasonable thermal design and robust thermal control devices are needed.One kind of temperature control loop heat pipe(TCLHP) is designed,which highly meets the thermal control requirements of CCD components.In order to study the dynamic behaviors of heat and mass transfer of TCLHP,particularly in the orbital flight case,a transient numerical model is developed by using the well-established empirical correlations for flow models within three dimensional thermal modeling.The temperature control principle and details of mathematical model are presented.The model is used to study operating state,flow and heat characteristics based upon the analyses of variations of temperature,pressure and quality under different operating modes and external heat flux variations.The results indicate that TCLHP can satisfy the thermal control requirements of CCD components well,and always ensure good temperature stability and uniformity.By comparison between flight data and simulated results,it is found that the model is to be accurate to within 1℃.The model can be better used for predicting and understanding the transient performance of TCLHP.     

An artificial vision-based control system for automatic heliostat positioning offset correction in a central receiver solar power plant

This paper presents the development of a simplified and automatic heliostat positioning offset correction control system using artificial vision techniques and common CCD devices. The heliostats of a solar power plant reflect solar radiation onto a receiver (in this case, a volumetric receiver) placed at the top of a tower in order to provide a desired energy flux distribution correlated with the coolant flow (in this case air mass flow) through the receiver, usually in an open loop control configuration. There exist error sources that increase the complexity of the control system, some of which are systematic ones, mainly due to tolerances, wrong mirror facets alignment (optical errors), errors due to the approximations made when calculating the solar position, etc., that produce errors (offsets) in the heliostat orientation (aiming point). The approximation adopted in this paper is based on the use of a B/W CCD camera to correct these deviations in an automatic way imitating the same procedure followed by the operators. The obtained images are used to estimate the distance between the sunbeam centroid projected by the heliostats and a target placed on the tower, this distance thus is used for low accuracy offset correction purposes. Basic threshold-based image processing techniques are used for automatic correction.     

Visual flame monitoring system based on two-color method

Monitoring and control of combustion flames in utility boilers are required in order to optimize combustion conditions. This paper presents an instrumentation system for the concurrent measurement of the temperature distribution and soot concentration of flames developed on the two-color principle. This system consists of an endoscope, an optical assembly with optical filters, a CCD camera, a frame grabber and associated image processing software. Experiments are performed on a methane-air combustor and the temperature fields and the soot concentrations corresponding to the flame images are obtained. The results have demonstrated that the system is capable of performing on-line measurement of flame and temperature distribution, providing temporal and spatial characterization of the combustion process. In addition, the combination of advanced optical sensing and digital image processing technique can help to define the threshold by the analysis of the background noise. Furthermore, the utilization of the filter technique can enhance the image presentation effect to an extent.     

Laser manipulation of micro untransmissive particles in water

The laser trapping of untransmissive particles are discussed in this paper. Photon can generate the momentum to the untransmissive particle by diffraction and reflection on the surface of the particles. We tried laser trapping of untransmissive particles using an attractive force caused by the diffraction and radiation force caused by reflection. The laser trapping system includes CW YAG laser, which has 1.064 μm in wave length and an optical microscope. The motions of particles were monitored by a CCD camera on the top of the microscope and recorded by PC connected to the CCD camera.     

Calibration and Experimental Research of a Multiple-wavelength Flame Temperature Instrumentation System

This paper presents a study on a novel instrumentation system for the measurement of temperature distribution of combustion flames. This system operates upon the three-color principle combining advanced optical sensing and digital image processing techniques. It comprises an endoscope, a light splitter assembly, a CCD camera, a frame-grabber and associated software. This system was calibrated using a blackbody furnace as standard temperature source. The relationship between flame temperatures and grey-level of the images was established through image processing and function correlation. Experimental results obtained on a gas-fired combustion rig provide flame images and temperature distributions on three different wavelengths. Based on the flame temperature distribution the combustion conditions can be analyzed. Experimental results also reveal that this system is capable of online measurement of temperature distribution in a combustion zone. This system can potentially be applied to many areas such as power generation, metallurgy, chemical engineering. It is also a powerful tool for improving the control of combustion process.     

利用面阵CCD进行火焰温度分布测量_I_二维投影温度场的测量

介绍了利用彩色面阵CCD进行火焰投影温度测量的系统结构和基本原理,并分析其主要的误差来源,针对这些误差源,分别提出了各自的解决方案或校正算法,最后进行了试验测量,结果表明,这种测温方法方便可行,具有较高的精度。     

闭式循环柴油机排出气体喷淋冷却传热模型及实验关联研究

闭式揭环柴油机(CCD)排出气体处理技术是各种不依赖空气动力装置(AIP)的共性技术，优选喷淋冷却方式并对其内部的气液传热模型化是该技术的核心。为此，分析对比了横流式、并流式、逆流式等喷淋冷却方式，对实际选用的CCDAIP横流式喷淋冷却器进行了气液传热分析。从单个液滴传热模型出发，采用分层计算方法建立了喷淋冷却传热计算模型，并应用Matlab语言编程计算各种工况下冷却效果。喷淋冷却实验结果与模型计算结果对比表明，该模型能够较精确地预测CCD排出气体喷淋冷却效果。     

透过燃烧图像对汽油机湍流火焰分形特性的试验研究和模拟(英文)

汽油机湍流预混燃烧的火焰结构具有分形几何的自相似性.利用基于分形理论的燃烧模型对发动机的燃烧过程进行了模拟计算,并将计算结果与试验数据进行了对比.试验采用自行设计的以光学发动机和高速摄像机为核心的系统,通过对拍摄到的湍流火焰照片经过图像处理来获取火焰的分形维数、火焰面积、湍流火焰速度等特性参数.研究结果表明:试验结果和模型计算值吻合得较好,分形燃烧模型是一种有效的模拟发动机工作过程的手段,具有良好的预测精度.