tailieunhanh - Fundamental and Advanced Topics in Wind Power Part 11

Tham khảo tài liệu 'fundamental and advanced topics in wind power part 11', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Part 3 Wind Turbine Control and System Integration 13 Advanced Control of Wind Turbines Abdellatif Khamlichi Brahim Ayyat Mohammed Bezzazi and Carlos Vivas University Abdelmalek Essaâdi Morocco 1. Introduction Wind energy technology has experienced huge progress during the last decade. This was encouraged by the need to develop ambient friendly clean and renewable forms of energy and the continuously rise of oil price. Sophisticated designs of wind turbines were performed. Large-size wind turbine farms are nowadays producing electricity at great scale throughout the world. Wind energy represents actually the most growing renewable energy the rate of growth reaches actually 30 in Europe. The cost of wind energy was not always cheaper than that of the other energy resources if the impact on environment and the risk linked to the classical forms of energy is not considered. The cost has however experienced a regular drop since the early 1970s. Cost reduction continues to constitute a main concern in the field of wind energy and research and development programs are considering it as a top priority. The objective is to extract optimal electric energy from wind with high quality specifications and with reduced installation and servicing expenses Ackermann Soder 2002 Gardner et al. 2003 Sahin 2004 AWEA 2005 . Among the most important issues that allow to deal with cost reduction and its stabilisation in the field of wind turbines one finds controller design for these installations. The objective is to deserve better use of the available energy in wind by providing through intelligent control its optimal extraction. Three main goals are generally pursued during designing of wind turbine controllers. The first one is to optimize use of the wind turbine capacity optimal extraction of electric energy from the kinetic energy contained in the incident wind . The second is to alleviate mechanical loads in order to increase life of wind turbine components fatigue loads should be