Robust optimization method of power system multi resource reserve allocation considering wind power frequency regulation potential

Abstract

With the large-scale grid integration of wind turbines, the traditional power system active standby capacity can no longer meet the frequency safe operation requirements. In order to further improve the rationality of power system active standby configuration, this paper proposes a power system multi-resource standby robust optimisation strategy considering the WP FR potential. Firstly, a frequency response model is derived for the WP integrated power system. Subsequently, a two-stage multi-resource reserve robust configuration model is constructed while acknowledging frequency constraints. Secondly, an uncertainty modeling method considering the temporal error correlation is proposed to accurately characterize the uncertainty of WP, and the original problem is transformed into a master-subproblem iteration solution by column and constraint generation algorithm. Finally, the efficiency of the proposed model is supported through the adjusted IEEE RTS-79 test system. The results indicate that the proposed model efficiently capitalizes on FR potential of WP and shows the flexibility of multi-resource control while guaranteeing system frequency stability and encouraging WP participation in reserve configuration. Additionally, the proposed uncertainty modeling method can enhance operational efficiency while maintaining robustness of resource allocation.