نتایج جستجو برای: high speed turbine

تعداد نتایج: 2201891  

2008
MEHDI RAHNAMA ALI GHAFFARI HADI GHORBANI

In this brief, constrained multi variable model predictive control (MPC) strategy is investigated for a GE9001E gas turbine power plant. So the rotor speed and exhaust gas temperature are controlled manipulating the fuel command and compressor inlet guide vanes position. A nonlinear model is introduced using conventional mathematical models and ARX identification procedure as gas turbine plant ...

2016
S. Balamurugan

Power system is a combination of a number of sources and loads properly linked by a transmission system. The source is a generating system fueled by renewable or non renewable system where bio mass fuel is used to generate electric power. Due to low levels of bio fuel availability, the gas turbine system is considered as a weak system when compared to thermal and hydro systems. However, stable ...

2017
Nadji Hadroug Ahmed Hafaifa Mouloud Guemana Abdellah Kouzou Abudura Salam Ahmed Chaibet

Gas turbines are currently a popular power generation technology in countries with access to natural gas resources. However they are very complex systems the operation of which at peak performance is challenging. This paper proposes the use of a hybrid approach based on an Adaptive Neuro-Fuzzy Inference System (ANFIS) for the control of the speed and the exhaust temperature of a gas turbine. Th...

2016
Gianluca Califano Andrea Notari Silvia Scorza Manuel Tommasi

Scope of the analysis presented in this work was the improvement in the design of a microturbine for dental applications. The initial choice was an impulse turbine operating in subsonic regime with air as working fluid and a behavior similar to Turgo turbines. The work was performed in several stages: the first step focused on documentation of these turbines, followed by a dimensional study bas...

2004
Yifan Tang

Fuzzy control methods are developed for a high efficient variable speed constant frequency power generating system, with wind power generation as an example. In slip power recovery configuration, the system is composed of a doubly excited brushless reluctance machine and a reduced rating power electronic converter unit linking the stator secondary circuit with the power line. The doubly excited...

2010
Lu Lu Ryan E. Schultz Ryan A. Schultz Bao Tong Rong Bi Yangfan Liu

The problem of wind turbine control has received significant attentions in recent years. The maximization of energy generation and load reduction are two major objectives for the control of wind turbine systems. Varieties of approaches have been proposed to achieve the above two objectives. Specifically, indirect speed control (ISC) and PID control have been widely used for the energy maximizat...

2013

In this study, a field testing has been carried out to assess the power characteristics of some small scale wind turbines fabricated by one native technician from Tanzania. Two Horizontal Axis Wind Turbines (HAWTs), one with five and other with sixteen blades were installed at a height of 2.4m above the ground. The rotation speed of the rotor blade and wind speed approaching the turbines were m...

Journal: :international journal of advanced design and manufacturing technology 0
ahmadreza fazeli ebrahim sharifi

in this project creep feed grinding process of gas turbine blade root is investigated with the aim of consistant and controlable production. inthispaper, effectiveness of creep feed grinding process prometers suchas wheel speed, workpiece speed, grind depth and dresser speed are investigated. this investigation include their interaction on thelob of gas torbine blade root, as amajor cause of a ...

2008
Selim Sivrioglu Ufuk Ozbay Erkan Zergeroglu

Variable speed wind turbines maximize the energy capture by operating the turbine at the peak of the power coefficient, however parametric uncertainties and disturbances may limit the efficiency of a variable speed turbine. In this study, we present a robust backstepping approach for the variable speed control of wind turbines. Specifically, to overcome the undesirable effects of parametric unc...

Journal: :Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 2018

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