Guidelines for the design and control of electrical generator systems for new grid connected wind turbine generators

The planning and operation of the electric power supply system should be affected by large penetration of wind power systems connected to it. This paper begins with a discussion about the main technical issues that can appear in networks with high level of penetration of wind systems, and shows how the variable speed wind generators could be a useful tool to resolve most of these issues, due to its capability to regulate the electromagnetic torque, and the active and reactive power delivered from each of these systems. The paper continues with a review of the most important technologies used today in variable speed wind generator systems, focusing the attention in the main operation issues of each of them. The paper concludes with the presentation of developments that are being done in our department in order to resolve these problems in future designs.