Transmission and distribution networks,wind power,renewable energy,power systems

Technical and economic examining of replacement ACSS high capacity conductors rather than ASCR conductors in 20kV overhead networks




Shahram Moradi                                 Ahmad Asghari


Gilan power distribution company




Today, due to increasing energy demand, the development of urban construction is obvious. On the one hand, due to the heavy demand of consumers and increase production capacity, they need to increase their intake Demand. The growths in urban areas, electricity distribution companies are forced to increase the installed capacity to posts and distribution lines. Therefore, to increase the capacity of medium voltage overhead lines up to 20 kV voltage levels will be need to increase the conductor cross section. Most of the electricity distribution network in Iran is ASCR conductors. In order to increase the cross area, they need further mechanical calculations and changes based on end-of angles and equipment. This study compares the technical and economic capacity replacement ACSS conductors instead ASCR without changing the makeup line and just replace the conductor with higher capacity are paid. For this purpose, the MCAL software (Mechanical Calculations) made for the line mechanical calculations have been used



برچسب‌ها: ACSS high capacity conductors, ASCR conductors, 20kV overhead networks
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+ Posted in  Wed 15 Jan 2014 at  5:4 PM  By  shahram moradi  | 


Examining the effect of TOU program on distribution transformators life time


Fatemeh mohammadi .S,  Shahram Moradi,  M.Taghi Mehdizadeh


Gilan power distribution company


This paper studies the effects of time of use program (TOU), which is one of the demand response programs in distribution systems. The objective used in this paper is to increase transformer life time as much as possible. To assess this program, a 250KVA transformer is assumed. At first the life time of the transformer is calculated based on the transformer actual load curve, then the optimal load curve taken from TOU is used to calculate the life time


برچسب‌ها: Distribution systems, time of use program TOU, transformators life time
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+ Posted in  Wed 15 Jan 2014 at  5:3 PM  By  shahram moradi  | 



WHO needs wires? An idea for sending power over long distances via lasers and balloonsMovie Camera could help provide emergency power where it is needed. Stephen Blank of the New York Institute of Technology wants to use aerostats, military-grade balloons, to send hundreds of kilowatts of power over several hundred kilometres. A laser would be sent up to the aerostat through a fibre-optic cable, then beamed through the air to a distant aerostat where the high-energy light is converted into electricity, which streams back down to earth via a tether






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+ Posted in  Mon 16 Dec 2013 at  11:46 AM  By  shahram moradi  | 

2nd International Conference on Energy Systems and Technologies

18 21 Feb. 2013, Cairo, Egypt

 

 



Examining the effect of changes in 20 kV lines configuration to

 

  remove the limits of approach  

 

 

 

Shahram Moradi, M.esmaeel Honarmand

 

 

 

Guilan power distribution company, Iran

 

 

Being positioned in 20 KV line limits of approach is one of the main reason to not sign the supply contract for some residential or commercial consumers. Guilan province’s cities, especially Rasht has gabled roof houses with a slope, and its streets are without a sidewalk or sidewalks are narrow and have trees. In addition the high price of land caused population density in the rurals. Existence of 20 kV overhead lines for the past years in these areas and lack of public awareness of power lines limits of approach rules has resulted in not signing the supply contract with new consumers in these areas. To address this problem, power distribution companies have to make a change to 20 KV lines configuration, which results in operational problems. In this paper the different problems of limits of approach, exact measuring the limits of approach area and examining different ways to remove the limits of approach with practical examples and the change in lines configuration solution is presented. Finally some ideas are suggested to improve their performance.

 

Keywords: first degree limits of approach, second degree limits of approach, removing the limits of approach, 20 kV overhead line


برچسب‌ها: first degree limits of approach, second degree limits of approach, removing the limits of approach, 20 kV overhead line
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+ Posted in  Thu 28 Mar 2013 at  6:11 PM  By  shahram moradi  | 

ePrints@IISc repository collects, preserves and disseminates in digital format the research output created by the IISc research community. It enables the Institute community to deposit their preprints, postprints and other scholarly publications using a web interface, and organizes these publications for easy retrieval. While eprints@IISc can be accessed by anybody, submission of documents to this repository is limited to the IISc research community only. ePrints@IISc repository is running on EPrints open archive software, a freely distributable archive system available from eprints.org. ePrints@IISc complies with the Open Archives Initiative (OAI) framework allowing publications to be easily indexed by web search engines and other indexing services


http://eprints.iisc.ernet.in/

+ Posted in  Fri 17 Jun 2011 at  9:29 AM  By  shahram moradi  | 

The second Iranian Conference on Renewable Energies and Distributed Generation (ICREDG-2012)  at the Faculty of Electrical and Computer Engineering, Univeristy of Tehran, Iran



+ Posted in  Sun 8 May 2011 at  8:10 AM  By  shahram moradi  | 

+ Posted in  Mon 10 Jan 2011 at  2:7 PM  By  shahram moradi  | 

IEEE Std 602, commonly known as the IEEE White Book™, is published by the Institute of Electrical and Electronics Engineers (IEEE) to provide a recommended practice for the design and operation of electric systems in health care facilities. It has been prepared on a voluntary basis by design engineers and health care end users as well as electrical and medical manufacturers functioning as the White Book Working Group within the Power Systems Design Subcommittee of the Power Systems Engineering Subcommittee

 

 

 

 

 

 

 

 

 

 

 

 

This recommended practice will probably be of greatest value to the power oriented engineer with limited health care experience. for health care facilities.


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+ Posted in  Wed 4 Aug 2010 at  8:7 AM  By  shahram moradi  | 


EPRI journal



The EPRI Journal is the flagship publication of the Electric Power Research Institute. It is published for a broad readership and reports on the substance and relevance of EPRI's work, offering insight on issues of importance to the electric power industry and society in general.


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+ Posted in  Tue 3 Aug 2010 at  9:18 AM  By  shahram moradi  | 

Highways basking in the hot sun are wasted energy. Scott Brusaw's solution? Make them out of solar panel


Scott Brusaw's Solar Roadways Kevin Hand


The road ahead is paved with photovoltaics. That’s how Scott Brusaw sees it, anyway. His company, Solar Roadways, is embedding PV cells and LED lights into panels engineered to withstand the forces of traffic. The lights would allow for “smart” roadways and parking lots with changeable signage, while the cells would generate enough energy to power businesses, cities and, eventually, the entire country.


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+ Posted in  Sat 3 Jul 2010 at  12:22 PM  By  shahram moradi  | 

This concept skyscraper could generate enough energy to power 4,000 homes

 

 

 

 

 

 

 

 

Dubai's 10MW Tower Courtesy Robert Ferry/Studied Impact Design


At first glance, the plans for the 10MW Tower have all the trappings of pre-crash Dubai: the improbable height, the flashy facade, the swagger of a newbie in a crowded skyline. On closer inspection, however, it’s an eco-machine. The A-shaped, 1,969-foot concept skyscraper is designed to turn out as much as 10 times the energy it needs, enough to power up to 4,000 nearby homes

Three separate systems make it work. First, a five-megawatt wind turbine in the hollow of the “A” generates energy in the powerful and unpredictable desert gusts. Second, mirrors dot the slanted, south-facing facade, beaming light to a molten-salt-filled collector that hangs off the building like an ultra-tall street lamp. Cooked to 932ºF, the liquefied salt transfers heat to a convection loop that runs a three-megawatt steam turbine. Finally, a two-megawatt solar updraft tower produces additional energy in clear weather. Sunlight warms air in a two-foot-wide gap that runs the length of the southern face. The airflow from rising heat powers an internal wind turbine.

If it were built (at an estimated cost of $400 million), 10MW could pay off its energy debt in 20 years. Extra juice feeds the municipal grid, and other sources in the area would adjust for the tower’s output. The building could house offices or residences or both, says designer Robert Ferry, 35, who helms the Dubai architecture firm Studied Impact with his wife, Elizabeth Monoian. The pair became interested in energy-generating skyscrapers on moving to the United Arab Emirates, where there are superstructures in spades but few that are any greener than their brochures. With the 10MW Tower, they hope to someday create a power plant you can live in. It may sound fantastic, but, Ferry says, “it’s only a matter of time before something like this is built.”

 

 

 

 

Reflective: The facade directs light to a power-producing salt-cooker.  Courtesy Robert Ferry/Studied Impact Design


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+ Posted in  Sat 3 Jul 2010 at  11:6 AM  By  shahram moradi  | 

The EPRI Journal is the flagship publication of the Electric Power Research Institute

 

 

 

 

 

 

Download


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+ Posted in  Fri 18 Jun 2010 at  7:59 PM  By  shahram moradi  | 

Power Distribution Planning Reference Book, 

(Power Engineering, 23): H. Lee Willis

 

 

 

 

 

 




 



Download






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+ Posted in  Tue 13 Apr 2010 at  6:25 PM  By  shahram moradi  | 

My paper in The First Iranian Conference on Renewable Energies and Distributed Generation ICREDG 2010

 

A REVIEW OF WIND TURBINE PLANT WITE THE ENERGY

 STORAGE  SYSTEMS

 

 

Shahram moradi                   M.E  Honarmand

 

 Gilan Electric Power Distribution company

 

 Abstract - During recent years, producing electricity by wind turbines has increased. Different forms of new turbines connected to the network and the passive network and the production of scattered power systems are used. Consequences of drought reduced production last year and Hydropower, leading to the power plants was increased again, was the most electricity distribution companies through different methods to pay load shedding. Electricity production by the wind turbines can be very useful in peak hours, but the Conversely on this topic may also apply, when the peak hours, electricity is not effective and economic. Considering that wind power plants in Iran and Binalood, Manjil areas like other countries is entrusted to the private sector, produce an effective economic talk of peak hours is considered important. Various methods of storage on the electricity there. Method to compress the air in wind power new and important subjects which will be used today. This article reviews the methods used are paid at the time of peak

 

+ Posted in  Mon 1 Mar 2010 at  2:4 PM  By  shahram moradi  | 

The EPRI Journal is the flagship publication of the Electric Power Research Institute. It is published for a broad readership and reports on the substance and relevance of EPRI's work, offering insight on issues of importance to the electric power industry and society in general

 

 

 

 

 

 

Download


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+ Posted in  Sun 3 Jan 2010 at  12:35 PM  By  shahram moradi  | 

Solar Cell Technology and Applications By A. R. Jha
Publisher: AUERBACH 2009-10-14 | 304 Pages | ISBN: 1420081772 | PDF | 5.5 MB

 

 

 

 

 

 

Complete Coverage of the Latest Advances In the Field
Energy experts predict that wholesale electricity prices could easily rise 35 to 65 percent by 2015. Add to this the growing need for energy independence and the need to reduce carbon emissions and it is very clear that the development of low-cost renewable energy, such as solar energy, is essential for our economy and our national security. With the potential for low-cost, renewable energy that can create jobs while reducing our dependency on foreign oil, solar cell technology provides a very attractive and plausible option

 


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+ Posted in  Wed 23 Dec 2009 at  7:40 AM  By  shahram moradi  | 

Butterworth-Heinemann | ISBN: 0750680350 | November 30, 2007 | 1056 pages | PDF | 7 MB
Safety at Work is widely accepted as the most authoritative guide to safety and health in the workplace

 

 

 

 

 

 

Download


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+ Posted in  Sat 19 Dec 2009 at  9:39 AM  By  shahram moradi  | 

WindSight magazine is the official quarterly publication of the Canadian Wind Energy Association. As the voice of this dynamic industry, WindSight is distributed to 3,000 readers who are the industry’s key leaders and decision makers

 

 

 

 

 

 

 

 


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+ Posted in  Wed 16 Dec 2009 at  8:25 PM  By  shahram moradi  | 

The first annual PEDSTC conference (Power Electronic & Drive Systems and Technology Conference) will provide a forum to exchange ideas, discuss best practices, raise awareness, and share experiences among researchers and practitioners in the field of Power Electronics and Drives. PEDSTC grew out of the Power Electronics Society of Iran, in order to create an event that focuses on the important and exciting topics of Power Electronics and Drives

 

 

 

 

 

 

 

 

Design, analysis, modeling and control of power electronic systems, power converters, motor drives


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+ Posted in  Thu 10 Dec 2009 at  12:19 PM  By  shahram moradi  | 

Asia-Pacific Power and Energy Engineering Conference ( APPEEC ) is sponsored by IEEE Power & Energy Society (PES), State Grid of China, Sichuan University, Chongqing University and Wuhan University. All papers accepted will be indexed by Ei Compendex and ISTP. This conference will be held in Chengdu where "The Land of Abundance" is located

 

 

 

 

 

Link

http://www.scirp.org/conf/appeec2010/


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+ Posted in  Sat 5 Dec 2009 at  1:16 PM  By  shahram moradi  | 

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