源荷置信度水平下光伏光热耦合热电联产系统的调度优化

To enhance the installation capacity of solar energy at the user side，promote the integration of solar photovoltaic and thermal energy，a combined heat and power system based on solar photovoltaic and solar thermal cooperation is proposed. By introducing the concept of energy salesmen and establishing a master-slave game theory based on energy salesmen-users-system，the thermal and electrical balance between the user side and the system side at different confidence levels is optimized with the purchase and sale prices as the decision variables. Case studies demonstrate the effectiveness of the proposed method. At a 0.9 confidence level，demand response reduces the user′s electricity consumption during peak price periods by an average of 763 kWh，while increasing consumption during low price periods by 564 kWh. The gas turbine outputs a maximum of 2.2 MWh at 09:00，and the photovoltaic system reaches a peak of 2.4 MWh at 14：00. Additionally，the user′s thermal demand is reduced by 31.6% at 14: 00. By optimizing system-side equipment output and user-side energy consumption，the system achieves more efficient production and economic energy use，maximizing the profits of all participants.