Impact of large wind power generation on frequency stability

This paper explores the available control options for enabling wind power generation plants to participate on the maintenance of system frequency following a major power imbalance. Taking the currently employed control structures for wind generators as the baseline case, possible expansions and additional features have been discussed. The options include voltage or alternatively frequency dependent active power control. The responses of these control schemes vis-a-vis their frequency supporting capability in a power system contingency situation have been simulated and with one another compared. It was found out that at the conceptual level there are indeed a range of options which would place wind generating plants in a position to support system frequency in an emergency situation