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A diagnostic and control system for a turbine is presented. The influence of the turbine controller on regulation processes in the power system is described. Measured quantities have been characterized and methods for detecting errors have been determined. The paper presents the application of fuzzy neural networks (fuzzy-NNs) for diagnosing sensor faults in the control systems of a steam turbine...
The paper presents a computer program which enables storage and comprehensive analysis of statistical data referring to operational states of power units. Program allows to get basic reliability measures like mean time between failures, expected failure rate, mean time of a shutdown by the method of histogram with a set number of observations in each class and with application of standardized unit...
The paper presents an analysis of the possibilities to improve power station contribution to the power system restoration. The modernization of an electrical auxiliaries system gives such possibilities. The results of computer simulations show the necessity to change an existing systems and adjust relays settings.
The paper presents results of reliability forecasting for domestic, technologically congener power units rated at 370 MW operating in Belchatow Power Plant and Opole Power Plant as lignite fired and hard coal fired respectively. Estimation of parameters for identified empirical probability distribution functions of operation time and repair time was done by the method of a histogram with a set number...
Hybrid steam power plant with geothermal feedwater preheating enables conversion of low temperature geothermal resources into electricity. The paper presents results of calculation of some performance parameters for 200 MWe rated fossil power unit associated with geothermal well. The paper gives separation rule of renewable energy from conventional one at hybrid power plant output. An influence of...
The paper presents a mathematical model of large power induction motor. The purpose of the proposed model is an analysis of multi-motor system supplied by auxiliary electrical system of power plant. Non-linear model takes into consideration saturation effect and deep-bar effect. Apparent form of model equations simplifies the structure of algorithm and shortens time of calculations. The model keeps...
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