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Register a new userThe control electric power generated By Wind turbine Using of programmed electronic circuits
التحكم بالطاقة الكهربائية المولدة من عنفة ريحية باستخدام الدارات الإلكترونية المبرمجة
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يعتبر التحكم الآلي ملتقى المعارف الهندسية، إذ ينبغي مراقبة و ضبط المتغيرات التي تتفاعل في جميع العمليات الصناعية كي تؤدي تجهيزات المنشآت الوظائف التي شيدت من أجلها.إن تكنولوجيا نظام التحكم الآلي لها دور كبير في تخفيف أعباء الحياة اليومية، و جعلها أكثر رفاهية، فنجد تطبيقات التحكم الآلي في معظم الأجهزة المنزلية ، مثل : التبريد والتكييف و الأفران و الغسالات و غيرها. و لقد أصبحت مفاهيم التحكم الآلي تستخدم في شتى مجالات المعرفة مثل علوم الأحياء و الاقتصاد و الاجتماع و الطب و التربية.
It is the automatic control engineering knowledge forum, as it should monitor and control the variables that interact in all industrial processes to perform functions equipment installations constructed for her. The automatic control system technology has a big role in easing the burden of daily life, and make them more luxury. automatic control applications in most appliances, such as: air conditioning and stoves, washing machines, etc.Automated control concepts has been used in various areas of knowledge such as biology, economics, sociology, medicine and education .
References used
www.Electrical power converter.com
Pierre Bousseau, Grid impact of differenttechnologies of wind turbine generator systems, EWEC,Madrid, 2003
Bose, Kimal.; Spiegel, Ronald.;Simoes,Marcelo. "Fuzzy Logic Intelligent Control of aVariable Speed Cage Machine Wind Generation System",VOL.12,NO.1,1997,p.88–94
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reliance on new and renewable sources of energy has grown in order to obtain
electric power without the use of traditional fossil fuel sources. And thus solve
the problems of the global energy crisis and also maintain a clean environment,
through
the fight against the dangers of global warming and its negative results
Wind power is considered as one of the most important of these alternative
energies.
We will work in this research in order to be able to control wind turbine with
variable speed through pitch angle control in order to organize power and
control the rotational speed in order to make the power ideal.
Where we will be using a fuzzy controller to control pitch angle instead of the
traditional controllers, which is expected to improve system response and
provide ease in the application and modification and reduction in the cost.
By reference study we came to the result showing that most previous studies in
advanced wind energy systems have addressed to control wind turbine using
conventional controllers from PI or PID type. Show we have the problem of the
need to know the exact mathematical model of the system. Where traditional
controllers of wind turbines that operate at variable speed are based on
mathematical models which may be complex and non-linear and neglect often
physical phenomena, for example, magnetic saturation which leads to
complexity in the calculation and unexpected performance of the driven system.
The proposed research aims to provide a complete study through modeling and
simulation using the Matlab about the use of fuzzy controller to control the
wind turbine where traditional controllers of type PI will be designed to control
the pitch angle and to control the rotational speed and fuzzy PI controllers to
control the pitch angle. Results will be get and discussed and conclusion will be
extracted from them.
Research Results showed that the fuzzy control improves transient state
behavior, but the steady-state behavior is better controlled when we use PI
controller. So and based on the result we got, the PI controller can't be replaced
actually with the fuzzy controller.
The purpose of this research is to design and realization of an electronic circuitthat is able to control the water level in a tank. The circuit shows a tank water level in decimal numbers and controls the volume of water in the tank. So that when th
e level of water drops below a specific value that is preselected using a probe, the pump water works. When the water level reaches to another limit value, the pump stops working.We used for water level control a container which is made by transparent glass with volume of 15 L. the container is divided in nine levels. In addition to this purpose, because of large applications for realized electronic board, The circuit measures the speed of rotation of DC motorsin a wide range (0001 to 9999) cycles during a chosen period of time that ranges from 1 sec to 110 sec and display the speed of rotation in decimal numbers that appears on four displays. Moreover, the circuit contains a switch reset/start, for display clear and restart of measurement.
This study was carried out on samples of tap water, for several values of distance between the probes, and power supply. We found a quick response in showing levels and high efficiency in performance. We measured the number of special motor cycles for several values of the power supply during 30 s and 60 s, and the relation between the number of cycles and applied voltagewas drawingwe found it a linear relation.
A trading light dependent resistor has been brought and its
components have been checked by using X-ray Fluorescence in
the laboratories of physics department, it has been showed that
it is consists of Cadmium Selenide (CdSe). We have checked
some of it light characteristics.
This research shows that the design of wind turbine blade for the
best production of energy produces a turbine with a problem of
start-up.
The study focused on ways to improve the process of the small
wind turbine start-up at the low wind speed w
ith the stability of
the pitch blade angle, and study the behavior of the turbine
during the stage of angular acceleration after the start-up until
the turbine reaches the speed of rotation that enable it to produce
the energy.
إقلاع العنفة الريحية
العزم الآيروديناميكي
عزم القصور الذاتي
الفترة الزمنية اللازمة للإقلاع
سرعة الإقلاع
سرعة بداية توليد الطاقة
سرعة دوران العنفة الريحية
Wind Turbine Startup
Aerodynamic Torque
Moment of inertia
Starting Period
Startup Wind Speed
Cut-in Wind Speed
Wind Turbine Rotation Speed
المزيد..
This paper treats the issue of wind energy storage, mechanically, using the flywheel
device. We control the speed of the wind turbine and the flywheel by means of traditional
PID controllers. These controllers are designed depending on the system m
odel and its
parameters. Speed control is achieved by electromagnetic rotor flux orientation as called
vector control. Speed reference value of the wind turbine will be generated in order to track
the maximum power point. The flywheel reference speed is generated based on a second
order filter of power which is considered as a new contribution in this field of research.
Frequency converters are not modeled but we only consider the control strategy. The
results of modeling and simulation in Matlab satisfy the power smoothing issue and reflect
the importance of this study.
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