Some Thoughts about Harmonic Limits in Connection Agreements for Wind Power Plants

Abstract

For the connection of wind power plants into the public grid there are power quality procedures and limits that need to be complied with. The direct aim of those is to ensure a suitable power quality in the grid, but to ultimate aim is to ensure a high probability of electromagnetic compatibility. Each country has different requirements and standards, and with this, different procedures. In this paper, an overview of these methods will be given, together with some of the advantages and disadvantages. Furthermore, a review of the modifications regarding the latest versions of IEEE 519-1992 and IEC 61000-3-6 will be presented.