Objective
To set up a wind turbine using a direct generator (low speed, directly coupled generator) thereby avoiding the use of a gearbox. Such a system would reduce the cost (investment, maintenance) significantly in the long run, thereby increasing the penetration of wind energy in general. The new system allows larger power design in a reasonably small volume, especially interesting for installation in remote areas and offshore applications.
The following design goals are as follows :
- modular component layout : easy integration of Jeumont Industrie generator into supplied components, easy change of suppliers, assembly of major components on site, reduction of hydraulics, easy maintenance.
- up scaling possible.
- grid supporting : necessary for large machines in countries with high requirement on grid quality.
1. INNOVATIVE TECHNOLOGY :
The innovative characteristics of the project mainly consists of the following :
- the permanent magnet discoid generator which allows compactness, and easy transportation and erection. It allows also the cancellation of the gearbox and so lower maintenance costs. The discoid topology brings the modularity and so makes possible the up scaling for future power development by using additional rotor and stator discs.
- the electronic converter which bring the variable speed running, and which allows the soft connection of the wind turbine on all types of grid. These use for the Pulse Width Modulation control rectifier allows the limitation of torque pulsations on the main shaft. The variable speed running on the stall regulated rotor which allows an additional saving of 5% energy in comparison with conventional technologies.
2. THE CONTEXT OF THE TECHNOLOGY :
The equipment consists in a 750 kW wind turbine on a 53 meters tower; Nevertheless the concept and design are completely different from previous existing wind turbine designs.
Avoiding the use of a gearbox and replacing it with an AC/DC/AC conversion system would solve many problems which all wind turbine manufacturers have had in the past. For that reason, Jeumont Industrie and Aerpac are considering the direct driver generator directly connected to the rotor (mechanical) and through an inverter, to the grid (electrical). this solution is the most advantageous when maintenance cost, reliability and efficiency are compared. The use of the inverter allows the use of the wind turbine in a large speed range which results in an increase of the supplied power.
3. ECONOMIC ASPECTS :
The variable speed running allows an additional saving of 5% energy compared with conventional technologies. The overcost of the wind turbine is evaluated at 5% at the moment and in serial production. However, this overcost may be reduced in future through cost optimization and technology improvement.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques.
- natural sciencesmathematicspure mathematicstopology
- engineering and technologyenvironmental engineeringenergy and fuelsrenewable energywind power
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Topic(s)
Call for proposal
Data not availableFunding Scheme
DEM - Demonstration contractsCoordinator
59573 JEUMONT CEDEX
France