Thermal power flexibility retrofit planning considering the operational risk of the power system
Because of the strong randomness and poor controllability of new energy output,large-scale grid connection will definitely bring risks and challenges to the safe operation of the power system.This paper establishes a technical and economic model of flexible thermal power based on thermal power-flexibility transformation technology,and quantifies the operational risk of power systems containing new energy based on the conditional value-at-risk theory.Finally,a thermal power unit flexibility transformation-planning model that takes into account the operational risk cost of the system is constructed.Simulation based on example system shows that the flexibility transformation of thermal power units can reduce the operational risk of the system,and the model can take into account the costs of all aspects to ensure the validity and rationality of the planning results.
thermal power flexibilitythermal power unit retrofitconditional value-at-riskrisk measure
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