热电厂故障检测与诊断系统设计。
在火电厂故障诊断中，难以建立对象的精确数学模型，且故障征兆和故障原因之间具有一定的模糊性。
In the fault diagnosis of power plant, the precise mathematical model of the object is difficult to be obtained. And there are some fuzziness between fault signs and fault reasons.
本文以模糊理论为基础，分析了故障征兆与故障原因之间的模糊关系，设计了一个适用于火电厂故障诊断的模糊专家系统。
Based on fuzzy theory, the fuzzy relation between fault signs and fault reasons is analyzed. Then a fuzzy expert system for fault diagnosis in power plant is designed.
故障原因是出现了滚动删除的等效数值，就好比当发电厂出现一些细小的操作失误时，国家一半的电网出现短路一样。
It appears to be the digital equivalent of the rolling blackouts that happen when some minor glitch at a power plant short-circuits the power grid for half the country.
因为电厂不堪重负，这点储备量实在难以满足电力维护或者故障的需求。
This is too little to cope with maintenance or breakdowns, whichare on the rise since the power plants are being run too hard.
例如，麦肯锡公司就认为，尽管CCS发电厂的机器设备更加复杂，但这些发电厂出现故障频率不会高过普通煤电厂。
McKinsey, for example, imagines that CCS plants will break down no more often than normal coal plants, despite their more complicated machinery.
华盛顿的物理学家Ken Bergeron在一次核安全专家电话会议中表示，发电机的故障在技术上被称为电厂断电场景。
The failure of both generators is technically called a "station blackout" scenario, says physicist Ken Bergeron at a teleconference of nuclear safety experts in Washington d.
运行实践表明，实现状态维修能节省成本，减少故障．提高电厂安全经济运行水平。
Operatio practice showed that the realization of state maintenance could save cost, reduce faults, and improve safe and and economic operation level of power plant.
由于电厂内传感器布置环境恶劣，传感器出现各种各样故障的情况时有发生。
As the working environment of sensor is bad, sensor failures happen easily with different kinds of faults.
这种类型的泵在调试和运行过程中均出现过电机或泵体振动超标的故障，严重影响设备运行可靠性和核电厂安全性。
In the commissioning and operation, these pumps have all appeared excess vibration, which would debase pumps' operation reliability and nuclear plants' security.
电厂传感器的网络结构提供了在空间或时间上的冗余或互补的信息，为传感器故障的检测和分离提供依据。
The network structure of power plant sensors provides complementary information, redundant in space or time, which may be used for detecting faults in sensors and isolating them.
关键部件的年平均故障率低于其它类似的核电厂。
The average number of critical component failures per year is low relative to other similar plants.
以燃煤电厂电除尘器和气力输灰系统为研究对象，介绍了电除尘器和输灰系统故障诊断专家系统的功能、结构和研制原理。
A fault diagnosis expert system which was designed for dust collection and transportation system in power plant was introduced with its principle, structure and functions in detail.
简介了全分布式控制网络构成的水电厂微机监测系统的结构、功能和故障诊断系统。
A brief introduction is given about the structure. function and fault diagnosis system formed by overall distributed controlled network in hydroelectric plant.
根据灰色理论中的灾变预测，对发电厂中设备的故障日期作了预测，从而为实现设备从计划检修向状态检修提供了依据。
Based on catastrophe forecasting of grey theory to predict the date of equipment failure, the base for overhaul of equipment from planning repairing to status repairing is provided.
因此，建立凝汽器系统的故障诊断系统对电厂的经济、安全生产有着重要的现实意义。
Therefore, the establishment of condenser fault diagnosis system for power plant has economical and secure practical sense.
汽轮机转子在线故障诊断是关系到发电厂安全运行的重要课题之一。
On-line fault diagnosis for steam turbine rotors is important to the safe operation of power plants.
实时数据库及时准确地从现场获取数据并有效地组织和管理，是水电厂设备故障诊断系统进行故障诊断的首要条件。
The primary condition for the fault diagnosis expert system of hydropower plants is the real time acquisition of data and efficient organization and management by the real time database.
在故障工况仿真中摒弃了以往只进行模块局部仿真或小系统仿真的作法，将故障置入正常运行的整个电厂仿真系统中，查看并分析相关参数变化趋势及影响。
Instead of traditionally local or small system simulation, the fault is set into the simulation system for the whole power plant in normal operation so as to analyze the trend of relevant parameters.
发电厂的母线是电厂中的一个重要组成元件，当母线上发生故障时，将使连接在故障母线上的所有元件在修复故障母线期间，或转换到另一组母线上运行以前遭到停电。
When bus bar fault occurs, all components connected on the faulty bus bar will be in outage until power restores by repairing the faulty bus bar or switching them over to another bus bar.
部分火电厂计算机控制系统中的自动报警系统在出现报警信息时发出单调的警铃或蜂鸣器声音报警，CRT画面上故障点闪亮。
The automatic alarm system in some thermal power plants will send out monotone alarm ring or buzz with the fault points blinking on CRT screen in response to the alarm information.
由于水电厂的自动化程度越来越高，设备的在线监测和故障诊断就显得越来越重要。
Because of the increasing automatic degree in hydropower station, the on-line monitoring and fault diagnosis of equipment become more and more important.
对诊断系统的调试结果表明：基于虚拟dcs的仿真系统设计的故障诊断系统实现了火电厂的实时故障诊断与事故预报。
The test results indicate that the fault diagnosis system designed with the virtual DCS-based simulation system realizes the real-time fault diagnosis and accident prediction of the power plant.
发电机电气故障和高压电机的烧毁是影响大力发电厂安全、稳定发电的极大障碍。
The failures of generators and the burning - down of high voltage motors have greatly affected the safety and the stable production in power plants.
青溪水电厂排水系统的水泵控制系统原设计采用旧式常规电动机控制系统，投入运行后多次出现故障，存在许多安全隐患。
The drainage system in Qingxi Hydropower Plant originally adopted conventional relay control for its pump control system, which had many hidden troubles and resulted in multiple failures.
为电厂的故障诊断提供了较好的模型和方法，具有很高的实际应用价值。
The simulation results show that this method is easy, realizable, general, and practical in the power plant equipment fault diagnosis.
论文结合上海外高桥发电厂“300MW汽轮发电机故障在线综合诊断系统”的开发而开展相关的研究工作。
This paper makes its research incorporating with development of the project, 'On-line and comprehensive fault diagnosis system for 300mw turbogenerator' for Shanghai Waigaoqiao Power Plant.
论文结合上海外高桥发电厂“300MW汽轮发电机故障在线综合诊断系统”的开发而开展相关的研究工作。
This paper makes its research incorporating with development of the project, 'On-line and comprehensive fault diagnosis system for 300mw turbogenerator' for Shanghai Waigaoqiao Power Plant.
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