Arbaoui, Abdelaziz (2006) Decision support for the definition of wind turbine systems : adequacy to site specificities and weak electrical networks. PhD thesis Mécanique, ENSAM 2006ENAM0027 p.133.
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Abstract
A decision support system for the definition of wind turbine systems is developed by taking into account the wind and site characteristics, the wind turbine components and the electrical network properties close to the site. The approach is based on functional analysis, on the investigation of the functional fluxes and on the definition of a model suitable for supporting decision at the preliminary stages of wind turbine design. The complete set of solutions derived from the model is determined using a Constraint Satisfaction Problem solver. The intrinsic capability of the model to support decision is
derived from the investigation of the model parsimony, precision, exactness and specialisation. The model takes into
account performance criteria resulting from knowledge of manufacturers, distributors and investors. These criteria are used to discriminate design alternatives. Design alternatives correspond to choices of site (wind, electric network) and wind turbine architectures (related to 7 design variables). Performance criteria are the cost of electric kWh, the amount of energy being produced and the discounted total cost of the project. Electric network connection to wind turbines is taken into account through slow variations of the voltage and Flickers phenomenon. First, the maximal rate of penetration of the wind turbine energy production is determined. Next, two design alternatives have been investigated to improve wind turbine system integration in electric distribution networks. These alternatives are a reactive power control system and an inertial energy storage system. Inertial storage systems seem to be more expensive than reactive power control systems for this type of application. The influence of site specificities on decision making process has been established through three different sites (a Mediterranean site and two sites located in northern Europe). Profits relative to the cost of kWh appear to be high for Mediterranean sites. Most of the design variables defining wind turbine architectures have a great influence on this cost.
Investigations corroborate the necessity to adapt technological choices to the requirements of electric distribution network. Penetration rates may be greatly improved for the sites characterized by high “X/R” ratios using variable speed systems.
| Item Type: | PhD Thesis (PhD) |
|---|---|
| PhD Supervisor: | Nadeau, Jean-Pierre |
| Date: | 02 October 2006 |
| Board of examiners: | Mimet, A. and Bennis, F. and Robyns, B. and Nadeau, Jean-Pierre and Sebastian, P. |
| Ecole Doctorale: | ED 432 ECOLE DOCTORALE SCIENCES DES METIERS DE L'INGENIEUR |
| Discipline: | Mécanique |
| Collection (Fonds): | Arts et Métiers ParisTech (ENSAM) |
| Institution: | ENSAM |
| Subjects: | 5. Fluid Mechanics and Energy |
| Uncontrolled Keywords: | Systèmes éoliens, Spécificité du site, Réseau faible, Aide à la décision, Stockage inertiel, Modélisation et programmation par contraintes, Wind turbine systems, Sites specificities, Weak electrical networks, Decision support, Inertial storage, Modelling, Constraint programming |
| ID Code: | 2722 |
| Deposited By: | Ramesh Prisca |
| Deposited On: | 10 July 2007 |
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