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هندسة القوى الكهربائية - دراسة في توليد ونقل وتوزيع الطاقة الكهربائية
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يقسم الكتاب إلى: الشبكات الكهربائية الموحدة. محطات التوليد الحرارية. القسم الكهربائي في محطات التوليد. محطات التوليد النووية. محطات التوليد المائية. محطات التوليد بالطاقة المتجددة. أساليب نقل الطاقة الكهربائية. الأبراج الهوائية لنقل القوى. عوازل خطوط النقل. تمثيل خطوط النقل. مقدمة عامة عن محطات التحويل. المعدات الرئيسية في محطات التحويل. ترتيبات قضبان التوزيع. تأريض محطات التحويل. الأنظمة المساعدة في محطات التحويل. ملامح تخطيط شبكات التوزيع. أمثلة تطبيقية لتخطيط شبكات الجهد المتوسط. العناصر الأساسية بشبكة التوزيع. أنظمة التغذية في الجهد المتوسط. شبكات الجهد المتوسط الهوائية. دراسات هامة في شبكات التوزيع. المواد المستخدمة في صناعة الكابلات. تركيب الكابلات. الخواص الكهربائية للكابلات. اكتشاف أعطال الكابلات. الهزات العابرة في نظم القوة الكهربائية. استقرار منظومة القوى الكهربائية. التوافقيات في الشبكات الكهربائية.
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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 communicat
ion
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.
High Voltage Direct Current systems have been used for
transporting electrical energy for very long distances, at high
voltages (100- 1000 kv). On utilize thyristorized or transistorized
power converters, one converter is working as rectifier at s
ending
side, and the other is working as inverter at receiving side. Back to
Back Converters are used also where the rectifier and inverter are at
the same station, transmission line has hundreds of meters as long.
In our model we used non controlled three phase rectifier as
sending station and controlled three phase bridge as receiving
station (Graitze).
مبدلات التوتر و التيار
المقومات و العواكس
قدح الثيرستور
دارات توليد النبضات
إشارة التزامن
Voltage and current Converters
Power Transmission using High Voltage Direct Current systems
Rectifiers and Inverters
Thyristor firing
Synchronizing signal
نقل الطاقة الكهربائهة بالتوتر المستمر عالي التوتر
المزيد..
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.
This study concentrates on two basic problems:i)- Increasing of power
efficiency in Industrial premises to reduce the energy needed for product
unit without any impact on the production level .
To achieve this goal, lighting system should be opera
ted in a certain
condition, capacitor banks for power factor improvement should be
installed, and energy losses of distribution transformers should be reduced.
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 .
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