Added Value of Power Control in Improving the Integration of Wind Turbines in Weak Grid Conditions

Abdelaziz Arbaoui, Mohamed Asbik, Khalid Loudiyi, Khalid Benhamou

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DOI: 10.4236/epe.2010.24034                

Abstract

For economical reasons, wind turbine systems must be located in favourable sites generating a higher pro- ductivity. These are often located in areas with weak electric grid infrastructures. The constraints related to this type of grids limit the penetration levels of wind energy. These constraints are mainly related to power quality in the grid as well as the economical aspects of the project. In this study, we take into account the slow voltage variations and the flicker phenomenon. The models used are based on the development of a set of relations derived from engineering knowledge related to both technical and economical points of view. The maximal penetration level of a fixed speed wind turbine system is determined for a given grid. The power control has been investigated to improve wind turbine system integration. Obtained results show the necessity to adapt technological choices to the requirements of weaker grids. Penetration levels and wind turbine cost may be greatly improved using variable speed systems.

Keywords

Wind Turbine, Power Quality, Power Control, Weak Grid, Cost Modeling

Conflicts of Interest

The authors declare no conflicts of interest.

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