A load-side resource aggregation method based on Minkowski Sum

Abstract

In the context of high penetration of renewable energy in new power systems, load-side resources have good regulation potential to improve system flexibility. In order to fully exploit the regulation potential of load-side resources, the power regulation range and regulation cost of load-side resources need to be aggregated first. Based on the establishment of a unified model of the scheduling feasible region of the load-side resources, the computation of the Minkowski sum of the feasible region of the load-side resources is realized through the linear superposition of the maximally inner-approximated feasible region. The decomposition scheme of the instructions of the aggregator and the computation method of the equivalent cost function of the aggregator are proposed. The effectiveness of the proposed aggregation method is verified by arithmetic simulation.