Equivalent Storage Homogenization of Thermostatically Controlled Loads via Dynamic Programming

Homogenization is crucial for the integration of thermostatically controlled loads (TCLs) and other distributed flexible resources in power system operations, yet existing approaches are mainly optimization-based and impose a high computation cost. This letter proposes a novel dynamic programming method to homogenize TCLs into equivalent storage models, which is optimization-free and therefore computationally efficient. We further analyze error patterns of the homogenization to identify its application boundaries. Simulations based on real-world data validate the proposed method.