Study on Exploiting Thermostatically Controlled Loads to Reduce Wind Power Curtailment

摘要

Thermostatically controlled loads (TCLs) are widely studied as a promising way to provide flexibility for power system operations with uncertain wind integration. In this paper, a group of TCLs is aggregated as an aggregate battery to reduce the wind power curtailment. Considering the uncertainty of wind power, a rolling robust economic dispatch (ED) model based on two-stage optimization is adopted, where the first-stage dispatch optimizes the current schedule and the second-stage optimizes the schedule over a period of future. The simulation results demonstrate that aggregate TCLs provide system with additional flexibility to accommodate more wind energy. Moreover, incentivizing TCL owners to enlarge the temperature dead-bands and improving the prediction accuracy of wind power can further enhance the performance of TCLs in the system dispatch process.