A voltage regulation strategy through the control of reactive power on wind farms

摘要

The growing demand for energy sources with low environmental impact have intensified the importance of wind farms in many countries. However, due to the operational characteristics of these complexes, which are reflected in a variability of the produced energy and the use of electronic converters, the interaction between wind power plants and connecting electrical networks is shown to be an area of strong investigative interest. In fact, among the various phenomena that exist, steady state voltage variations constitute a topic that comes under the constant attention of agencies responsible for the power systems operation. In this context, the present paper is directed towards the analysis of a strategy based on wind generation systems with synchronous machines and full converters. Using such arrangement with specific control strategy, the paper is focused at providing wind farm additional features related to voltage regulation process at the grid connection busbar. By means of computational simulations on the ATP/EMTP platform, results are presented that attest the efficiency of the proposed strategy.