Graph partitioning-based zonal reserve allocation for congestion management in power systems with wind resources

摘要: Real-time actuation of scheduled reserve capacity in power system operations with high penetration wind is prone to failure on account unexpected shortcomings network transfer capability. In this paper, a graph partitioning-based zoning method incorporated into the security-constrained unit commitment improve deliverability operating reserves zone and mitigate possible congestions caused by uncertain power. A representation proposed which edge weights are quantified likelihood secure transmission utilization for each line. The probability distribution line flows characterized uncertainty multiple correlated farm output forecasts as well credible outage contingencies reflected using factors. minimum k-cut problem Gomory-Hu equivalent tree addressed simple efficient solve NP-complete partitioning problem. resultant zones can assure reduced risk congested conditions thus, provide new approach management intra-zonal congestions.