By Hans De Keulenaer / Published on Thu, 2008-11-06 09:10
| Dynamic
Current Limitation to Provide Interactive Features of Power-Electronics
Interfaced Distributed Generation
Fainan Hassan and Math Bollen, STRI AB
Overvoltages
due to Wind Power - Hosting Capacity, Deterministic and Statistical Approaches
Math Bollen, STRI AB
Power
Quality Monitoring System—Voltage Dips, Short Interruptions and Flicker
Daniel Kottick, Israel Electric Corporation
Concentration
photovoltaics - Technology (video)
Intelligent
building systems as a tool for monitoring power consumption and quality
in a building
Andrzej Ozadowicz, AGH-UST Cracow
Reduction of Electricity Costs and Investment Expenditures in the Power Supply System of a Lubin Mine
Andrzej Kowal, KGHM Polska Miedz
Jerzy Tenerowicz, Pracownia Projektow Innowayjjnych
Grid Connection Requirements for Wind Turbine Systems in selected Countries - Comparison to Turkey
Bora Alboyaci, The University of Kocaeli
Bahtiyar Dursun, Gebze Institute of Technology
New Power Quality Solutions Custom Designed For Industrial Applications
Francisco Ferrandis, Iberdrola et al
CIGRE/CIRED/UIE JWG C4.110, Voltage dip immunity of equipment in installations
Math Bollen, STRI et al
Some observations regarding leading-edge dimmers
Stefan Fassbinder, DKI
Evolution
of electrical design practice in office buildings
Angelo Baggini, TU Bergamo
Handbook
of Power Quality (book) | 
 |
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By Hans De Keulenaer / Published on Mon, 2008-09-29 09:44
By Math Bollen
This paper introduces methods to quantify the impact of wind power and other types of distributed generation on the overvoltage risk. The so-called hosting capacity approach, introduced in the very first issue of this magazine, is used as the basic approach. Both a deterministic and a statistical approach are introduced. The deterministic approach is suitable for generation with a constant production most of the time. However, it is shown that a deterministic approach could easily result in an unnecessary barrier against the introduction of wind power. For any method used to determine the hosting capacity, a serious discussion is needed about overvoltage indices and objectives.
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By Hans De Keulenaer / Published on Thu, 2008-08-28 14:23
By Daniel Kottick
The Israel Electric corp. deployed a nationwide Power Quality Monitoring System (PQMS). The PQMS monitors the quality of supply of all of its high voltage costumers, as well as a sample of its medium voltage customers. The PQMS monitors both the voltages and the currents. The PQMS has been operational since October 2005. The paper presents preliminary measurement results obtained from the PQMS.
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By Fernando Nuno / Published on Fri, 2008-08-01 17:11
Along with wind power, concentration photovoltaics (CPV) offers one of the most promising utility-scale, renewable energy technology options. CPV has a current system efficiency of 25% and the potential of reaching much higher efficiency. In the right locations, it could provide electricity at cost low enough to be competitive with fossil and nuclear power. Compared to other solar technologies, CPV has the advantage of modularity and very low water needs.
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By Sergio Ferreira / Published on Thu, 2008-06-26 15:54
Power supply systems and power industry in contemporary world are significant, if not the most important, sectors of any company, each country and the entire world economy.
The continuity of power delivery is of fundamental importance for all customers, particularly for the industry and public sector.That's why the issue of on-line monitoring and measuring of power consumption, electric power consumption, and selected power quality parameters becomes more and more important. The information and characteristics contained in this paper depict the capabilities of intelligent building systems.
The presented applications of intelligent building systems have an opportunity of significant development particularly with prospects connecting them with local networks in buildings or industrial facilities (Ethernet network) and global Internet web. That way the data on building power supply can be remotely analyzed, practically throughout the world.
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By Hans De Keulenaer / Published on Wed, 2008-06-11 18:18
The implementation of capacitor reactive power compensation in the Lubin Mine has produced the expected technical and economic effects. One should, however, be aware that compensation could be applied only to the level determined by reactive power demand. Currently this level in the Lubin Mine is 11‑12 MVAr. In case of a significant increase of the concentration of output in the distant areas of the mine, other technical measures will be necessary. The objective of a currently undertaken study is to develop a technically and economically feasible method for power supply of distant production sections, which consists in their electrical separation. All concept studies of the power supply system development should also take into consideration rational management of reactive power in both the supply networks and the loads. The rational management of reactive power should be based upon a continuous monitoring of load and reactive power flow.
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By Bora Alboyaci / Published on Wed, 2008-06-04 11:48
By Bora Alboyaci and Bahtiyar Dursun
The aim of this paper is to review the connection requirements of wind farms to the grid and how grid codes must be adapted in order to integrate wind power generation capacity without affecting the quality and stability of the electricity system. This paper also summarizes the grid codes that have already been modified to incorporate high levels of wind power. Grid connection requirements in selected countries such as Denmark, Germany, Netherlands and Turkey are investigated in detail.
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By Hans De Keulenaer / Published on Mon, 2008-04-07 17:15
By Stefan Fassbinder
The German Federal Minister for the Environment would like to ban the use of incandescent tungsten-filament light bulbs. For instance, one of the issues raised is that of dimming. As most of the dimmers installed are used to control incandescent bulbs, it’s worth taking a closer look at the issues involved.
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By Isabelle Heriakian / Published on Thu, 2008-04-03 20:28
Angelo Baggini, Franco Bua, Francesco Buratti
This paper summarises the outcomes of a European survey, aiming to evaluate typical office building electrical installation design practices in the years 2000 and 2005 in terms of adoption of Power Quality solutions.
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By Angelo Baggini / Published on Mon, 2008-03-17 14:30
Born from the experience of Leonardo's award winning Leonardo Power Quality Initiative, on April 11th, the new Handbook of Power Quality will be available worldwide, published by Wiley.
The book uses the perspectives of both power suppliers and electricity users, with contributions from experts in all aspects of PQ providing a balance of scientific and practical information on:
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