Optimal economic dispatching method and system considering thermoelectric demand of multi-source power system

The invention belongs to the technical field of multi-source power systems, and particularly relates to an optimal economic dispatching method and system considering the thermoelectric demand of a multi-source power system, and the method comprises the steps: building an upper-layer optimization model with the total cost of energy production as a target function F1; establishing a lower-layer optimization model by taking maximized electricity and heat benefits as a target function F2; and solving a total objective function by taking the maximized social benefit as the total objective function # imgabs0 # to obtain an optimal economic dispatching scheme. According to the electric power system economic dispatching model based on the double-layer optimization model, the overall economic benefit of the combined heat and power generation system can be improved, the flexibility of the combined heat and power generation system is improved, consumption of wind power and photovoltaic power generation can be promoted,