But it also bring some important questions which affect the safety and economy running of the units , such as frequency regulation , long running with low loads , electric equipment and assistant equipment friction , oil wasting etc . the text apply differential increcent rate of equilateral discharge to analyze deeply the economy of hydro - power plant according to the practice data of the plant , putting forward the resolvation , providing indeed the theoretic feasibility investigation of engineering 但由此带来的水电机组的频繁调节、长时间带低负荷运行以及电气设备和辅助设备的磨损和油耗的增加等，都成为影响水电机组长期安全、经济运行的不可忽视的重要问题。本文根据安徽陈村水电厂实际资料，运用等微增率方法对agc投入后水电站厂内运行经济性作了深入的分析，提出了解决办法，为在工程上真正实现提供了理论上的可行性研究。
As the basic work of the designing and evaluating of fuzzy gpss , the mathematic models of simple hydro - electricity system stability analyzing and controlling are founded and summarized which include the linearized model of hydraulic system - hydoturbine based on the linearized model of hydraulic system considering elastic water hammer and the linearized model of francies turbine , two different linearized model of single - machine infinite - bus system ( k1 - k6 model and c1 - c12 model ) , the nonlinear model of single - machine infinite - bus system based on three - order model of synchronous generator , the model of exciting system and the model of governor 作为设计和评价水电机组模糊gpss的基础，本文归纳建立了简单水电系统稳定分析与控制的数学模型，它包括：计及弹性水击的水力系统线性化模型、混流式水轮机线性化模型以及在此基础上的水力系统?水轮机线性化模型；单机无穷大系统两种详细程度不同的线性化模型，即k _ 1 - k _ 6模型和c _ 1 - c _ ( 12 )模型；基于同步发电机三阶模型的单机无穷大系统非线性模型；励磁系统和调速器模型等。
Based on the actual condition of gezhouba hydroeletric power plant , this paper points out the basic way for unit increasing capacity rebuilding of this plant after serious analysis and site review of lots of information of unit increasing capacity of hydroelectric unit at home and abroad . for this rerebuilding plan , we have made a lot of experiment and analyzed the data , the result show that the unit increasing capacity is necessary and feasible in this plant , additional , this paper describes project management , organization struture , management method , and evaluates this project value 本文对国内外众多水电机组增容改造资料进行了认真研究和实地考察；通过对水力发电机组增容改造技术的研究，结合葛洲坝电站实际情况提出了葛洲坝电站机组增容改造的基本途径；针对葛洲坝电站机组改造方案，进行了大量的试验，认真分析了试验数据，用试验结果充分证明了葛洲坝电站机组增容改造的必要性和可行性；本文还就该工程项目管理的必要性、组织结构、管理方法进行了阐述，并对该项目进行了项目评估。
Based on these requirements above , the main contents in this paper are as follows : firstly , the advantages of wireless sensor networks used for hydrogenerator condition monitoring are introduced and the system architecture is proposed . the key technologies in application and four energy - efficient mechanisms for prolonging network lifetime are summed up , which provide the basis for future researches 针对以上需求,本文主要研究内容如下:首先,分析了无线传感器网络用于水电机组状态监测的优势,提出了针对水电机组状态监测的无线传感器网络系统结构,并分析总结了应用过程中的关键技术及延长网络寿命可采用的四种能量高效机制,为进一步的深入研究提供了基础。
After collecting the characteristics of this signal in frequency domain , the samples are learned to train the constructed wavelet neural network ( wnn ) for realizing the mapping relationship between the fault and the spectrum characteristic , this method can be used for diagnosis of the unit faults efficiently 在对水电机组振动信号进行频谱分析后，提取该信号在频率域的特征量，将频谱特征向量作为学习样本，通过训练，使构造的小波神经网络能够反映频谱特征向量和故障类型之间的映射关系，从而达到故障诊断的目的。
The gpss have one output and two inputs which are speed error and its derivative . selecting triangular function as fuzzy variable ' s membership function , mamdani max - min synthetic method as fuzzy inference method and centroid method as denazification method , fuzzy control rules are given according to the control expectation of governor and the experience of operating staff 这种模糊gpss采用二输入单输出结构，以机组转速误差及其导数为输入量，以三角形函数作为模糊量的隶属函数，根据水电机组稳定控制要求和操作人员的经验制定控制规则，以mamdani的max - min合成法和重心法分别作为模糊推理方法和清晰化方法。
