Receiving end power grid elasticity improving method based on multi-strategy cooperation

The invention relates to a receiving-end power grid elasticity improvement method based on multi-strategy cooperation, and the method comprises the following steps: determining a power transmission channel reinforcement model, and obtaining the total cost needed by the reinforcement of a power transmission channel; determining an FACTS equipment installation model, and obtaining the investment, operation and maintenance cost of the FACTS equipment; determining a line on-off model, and obtaining the sum of the output cost of the generator set; establishing a receiving-end power grid elastic improvement model based on multi-stage coordination, so that the linear sum of the total cost required for reinforcing a power transmission channel, the investment, operation and maintenance cost of a UPFC, the sum of the output cost of a generator set and the load shedding cost is minimum, and the load shedding capacity of the power grid is minimum; according to the method, typhoon is taken as an extreme event, a power gri