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The electrical energy consumption continues to grow and more applications are based on electricity. We can expect that more 60% of all energy consumption will be converted and used as electricity. Therefore, it is a demand that production, distribution and use of electrical energy are done as efficient as possible. Further, the emerging climate changes is arguing to find sustainable future solutions...
In the field of wind energy, electrical generator solutions have converged on a small number of technologies for specific technical and economic reasons. This paper investigates whether a similar rationale exists within the field of oscillating water column, wave energy converters. The suitability or otherwise of the various generator options in the offshore marine environment is examined in detail...
The global electrical energy consumption is still rising and there is a steady demand to increase the power capacity. It is expected that it has to be doubled within 20 years. The production, distribution and use of the energy should be as technological efficient as possible and incentives to save energy at the end-user should be set up. Deregulation of energy has lowered the investment in larger...
With the increased use of wind energy for the power generation several TSO have increasing difficulties for congestion forecasting due to the unpredictable nature of the energy source. An actual method used to deal with days-ahead congestion planning is based on an order of disconnection of the generation of the type ldquolast generation installed, first generation limitedrdquo. This paper proposes...
The focus of this paper is wind power smoothing using super capacitors. Due to increasing penetration of the wind power in power system, the quality of the wind power has become a major concern to keep the stability of the power grid. One of the major problems of wind turbines is power fluctuations because of the wind speed oscillations. This paper studies the pros and cons of the integration of the...
This paper deals with fuzzy logic control of induction generator in wind turbine application in order to extract maximum power from the wind. Fully-controlled wind turbine consists of induction generator and back-to-back converter which is used to maximize the power output and enhance system performance. The advantages of using fuzzy controller are universal control algorithm, fast converging, parameter...
The electric power supply for the isolated systems constitutes a problem with difficult solution, because small scale systems present high costs and countless logistics difficulties regarding fuels supply for local generation. Besides, there may be severe physical isolation conditions, resulting on the impossibility of a transmission system due to very high costs. The power generation through wind...
A new circuit topology is introduced, to build up a power electronic rectifier for applications foreseeing electrical power generation from marine currents. The new power converter seems able to guarantee both DC-side voltages with very low ripple and sinusoidal generator currents. The proposed circuit topology is intended for applications in which, for each power generation unit, two turbines (and...
The global electrical energy consumption is still rising and there is an urgent demand to increase the power capacity. It is expected that the power capacity has to be doubled within 20 years. The production, distribution and use of energy should be as efficient as possible and incentives to save energy at the end-user should also be set up. Deregulation of energy has in the past lowered the investment...
Small-scale wind turbines commonly use AC/DC converters such as rectifiers, switched mode rectifiers (SMRs) and inverters. Another power converter, the semi-bridge SMR has been researched for automotive applications, and is utilised by a number of small-scale wind turbine manufacturers. This paper applies a novel modulation technique developed for automotive applications of the semi-bridge SMR for...
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