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Register a new userSTUDY OF AUTOMATION ELECTRICAL POWER TRANSFER STATIONS FOR ARRIVED TO ELECTRICAL SMART GRID
دراسة أتمتة محطات تحويل الطاقة الكهربائية وصولاً لتحقيق الشبكة الكهربائية الذكية
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بعد أن اتجهت عملية أتمتة محطات تحويل الطاقة الكهربائية نحو استخدام أجهزة الكترونية ذكية تقوم بتنفيذ وظائف متعددة من حماية و مراقبة و تحكم إضافة إلى استخدام بروتوكولات اتصال خاصة، استدعى الأمر التوجوه نحو بناء شبكة كهربائية ذكية لتنظيم و تنسيق برامتراتها و دعم التجييزات المتنوعة لها. يبدأ البحث بتعريف الشبكة الكهربائية الذكية و أهميته، و يتضمن الفوائد الرئيسية لهذه الشبكة و متطلباتها و وظائفها ثم ميزات الشبكة الكهربائية الذكية و ينتهي البحث بالمقارنة بين محطات تحويل الطاقة الكهربائية ضمن الشبكة الكهربائية التقليدية و الشبكة الكهربائية الذكية.
After that automation electrical power transfer stations towards to use intelligent electronic devices that are performing multiple functions : process protection, monitoring, control and use private companies manufacturers of equipment communication protocols, so that need to build electrical smart grid that coordinate his parameters and support his devices. Search begins definition electrical smart grid and its importance, and includes the benefit of this electrical smart grid, the requirements and the careers then the specifications of electrical smart grid, at the end of the search: we compare between the electrical power transfer stations in electrical traditional grid and electrical smart grid.
References used
Petri Paananan: “Specifying Configuration of control Equipment According to IEC- 61850”, Stockholm, Sweden, 2008
Ivan De Mesmaeker, Peter Rietmann, Klaus-Peter Brand and Petra Reinhardt: “Substation Automation Based on IEC- 61850”. ABB Switzerland Ltd., 6th Regional CIGRE conference in Cairo, November 21 – 23, 2005
(HELINKS LLC. Tools for substation engineering: “HELINKS System Tool Set – Standard Edition”, HELINKS-STS User Manual (.pdf
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In order to improve the performance of transformers in highvoltage
networks and re-electrical characteristics of insulation
materials for these transformers to the nominal accepted value,
methods of technical and new process are appeared to re-qua
lify
insulation transformers in their work sites in electrical transfer
stations without having to transport them to workshops or to
laboratories factory .
الشبكة الذكية هي مفهوم تحديث الشبكة الكهربائية ؛ تضم الشبكة الذكية كل ما يتعلق بالنظام الكهربائي بين أي نقطة توليد وأي نقطة استهلاك. من خلال إضافة تقنيات Smart Grid , تصبح الشبكة أكثر مرونة وتفاعلية وقادرة على توفير تغذية راجعة في الوقت الفعلي.
Electric energy is very important for sustaining the good life on the planet's surface, especially since civilization has become associated with this type of energy. Solar photovoltaic (PV) is one of the most suitable applications for converting sunl
ight into electrical energy. The appropriate use of solar energy is an important topic for reducing dependence on fossil energy sources that are used to generate electricity, and thus reducing the emissions of greenhouse gases on the planet's surface. Globally, because of environmental conditions, other methods of generating energy being searched for that are less harmful than traditional methods, which rely on a large percentage of them on generating stations that run on fossil fuels. This research discusses electrical power generation using solar energy cells and the effect of these cells on the Syrian electrical grid so that a study of a solar energy farm project provides the data required when working on implementing such a project, and these data are voltage control, load flow, total harmonic distortion coefficient levels. To implement such a project, the model must be designed and we chose the ETAP program for that.
Kouttina is one of the most proper areas in Syria for building wind energy conversion system. This system could be coupled with Syrian electrical grid without expensive cost because of nearing from the grid. But the permanent changes of wind speed wi
th no stable mode, cause different amplitude and frequency voltages differ from Syrian electrical grid amplitude and frequency.
The goal of this research is to design proper wind energy conversion system for Kouttina area and control it, therefore we always obtain constant amplitude and frequency voltages equal to those of Syrian electrical grid for any wind speed and load.
The proper wind turbine with its generator was chosen depending on parameters of probability mathematic function, called Wiebull Function. After that the proper control system was designed for equaling the amplitude and frequency of wind energy conversion system output with those of Syrian electrical grid. The buck -boost converter was controlled by proportional integral (PI) controller to always have DC output voltage equal to (622V). While the inverter controller was achieved by using two PI control loops, the outer loop for voltage control and the inner loop for current control. Though, three phase voltage with RMS phaser value of (220V) and frequency value of (50Hz) is achieved.
To validated the correctness and effectiveness of the proposed system, it was modeled using MATLAB program. The results showed the system ability of obtaining voltage with constant amplitude and frequency and this values do not change with wind speed or load changes.
The study seeks to determine the real time in electrical power system, which consists of
generating, transmitting and distributing equipment by using redistributing active power of
electrical generators in order to organizing the overload operation
of electrical power
transmission line loading in such case that the spare loads of electrical station are not
covering the important and necessary loads at failures.
The most of laws related to electrical power systems design indicated to proper ratio of
real time of electrical power system equipment along with characteristics of probability
distributed functions in addition to statistics methods which give a high possibility to
reduce the real time of considered loads; so; this leads to the requested solutions which
reduce the damage of failures at any time.
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