A unit commitment feasible solution calculation method based on system constraint repair contribution

Abstract

The application discloses a kind of based on system constraint repair contribution unit commitment feasible solution calculation method, specifically including solving fixed part start-stop unit commitment system constraint relaxation model, calculating system constraint repair start-stop variable contribution index, updating start-stop variable fixed range;The method identifies system constraint overrun degree by solving unit commitment system constraint relaxation model, and estimates the contribution degree of unit start-stop change to system constraint overrun repair using start-stop variable contribution index, to guide the selection of next iteration optimization start-stop variable, can realize the efficient feasibility repair of system constraint infeasible start-stop solution, quickly obtain high-quality feasible solution of unit commitment, effectively support power system optimization operation.

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