Security-Constrained Unit Commitment Considering Wind Power Uncertainty Subject to Cyber Attacks

摘要

The increasing penetration level of wind power will impose a huge barrier on how to effectively accommodate wind power use its predicted value. To address this issue, we propose an uncertain security-constrained unit commitment model considering the uncertainty of wind power subject to cyber attacks. First, two uncertainty sets of wind power are constructed based on the wind power forecast and its probability distribution, and are added into the traditional security-constrained unit commitment model. Then, under the premise of the slacked line power flow constraints and these uncertainty sets, the safe consumption interval of wind power the power system is obtained to solve this unit commitment problem. Additionally, the constrained wind power consumption interval by line power flow can not only ensure the safety of the power system, but also effectively restrain the attackable range of wind power forecast. The simulation results based on modified IEEE 6-bus, IEEE 30-bus and IEEE118-bus systems verify the effectiveness of the proposed model under different wind power scenarios.