Uncertain set description method and system for supporting operation flexibility evaluation of power system

The invention relates to the technical field of comprehensive energy systems, and discloses an uncertain set description method and system for supporting operation flexibility evaluation of a power system, and the method comprises the steps: constructing a function with the minimum operation cost of the power system and the maximum uncertain set envelope as an objective function; constructing constraint conditions including basic constraints meeting normal operation requirements in the basic scene and uncertain constraints meeting the normal operation requirements in the uncertain scene; according to the objective function and the constraint condition, constructing a power system operation flexibility evaluation model; the power system operation flexibility evaluation model is processed to obtain a maximum uncertain set, the maximum uncertain set is used for supporting power system operation flexibility evaluation, and the technical problem of economically optimal uncertain set description in a power system u