Cyber intrusion of wind farm SCADA system and its impact analysis

The increased and concentrated penetration of wind power makes the power network more dependent on, and vulnerable to, the wind energy production. The dynamic performance of power system can be affected by the wind farm operations. Cyber attacks on the cyber systems of wind farm present a potential threat for power system dynamics. The cyber security for the SCADA system of a wind farm is studied in this paper by incorporating the impact on the power system dynamics. The vulnerabilities of a wind farm SCADA system are identified. Credible attack scenarios are developed consequently. The simulation results show that cyber attacks can cause major problems for a power system, including economy loss, overspeed of a wind turbine, and equipment damage.