The Control of Large Wind-Farm-Induced Voltage Fluctuations

The contemplated use of large sources of intermittent generation such as wind in concert with conventional utility generation poses special operational problems. These problems include the propensity of the wind-driven source for upsetting the voltage regulation systems. Related to voltage depression is the often excessive VAR requirements which lead to large network losses if not controlled. This paper explores the use of an AC/DC/AC interface designed to control these voltage related problems. An extinction angle control algorithm is proposed and simulation results are used to show the advantage of such control.