Improvement study of grid-connected wind-farm using Static Var Compensators (SVC)

Abstract

In order to minimize CO2 emission from power generation a number of countries have recognized the requirement of developing and implementing renewable energy sources. Among the renewable energy sources, wind generation is dominating. Sri Lanka also contributed to this trend by implementing a pilot wind farm project. However, further development of wind generation is delayed due to restrictions imposed by the utility for connecting wind turbines to the grid especially at the medium-voltage level. This paper addresses an application of a Static Var Compensator (SVC) to mitigate some of the concerns utilities are having when connecting wind farm at the medium-voltage level. A combined feed-forward and feedback control was developed. The main function of this control is described in detail with simulations.