CVaR-Constrained Robust Unit Commitment for Power System with Concentrating Solar Power

A conditional value-at-risk (CVaR) constrained robust unit commitment model with concentrating solar power (CSP) is proposed to address the uncertainties arising from large-scale renewable energy integration. Firstly, the principle of CSP is analyzed, and the mathematical model of CSP in steady-state is established. Secondly, CVaR is introduced to measure the risk of loss caused by wind power uncertainty. Then, a CVaR-constrained robust unit commitment model for power system with CSP is formulated, and a multidimensional uncertainty set is used to tradeoff between the robustness and the conservatism of the model. The model is transformed into a mixed integer linear programming model by linearization and solved using the column and constraint generation (C&CG) algorithm. Finally, the effectiveness of the proposed model is verified on the IEEE 6-bus system and IEEE 118-bus system.