Multi-working-condition-point collaborative design method and device for variable-speed power turbine

The invention discloses a multi-working-condition-point collaborative design method and device for a variable-speed power turbine, and the method comprises the steps: determining the design requirements and constraints of the variable-speed power turbine; a variable-speed power turbine configuration is selected, and a one-dimensional center line model of a reference turbine is created; determining a design variable of the variable-speed power turbine; determining technical parameters and criteria of the variable-speed power turbine; determining a design point of the variable-speed power turbine; establishing a mapping matrix of the design points and fusing the mapping matrix into the one-dimensional center line model to obtain a first model; constructing an equation set and a constraint relation coupled with the design points according to the first model, and obtaining a multi-working-condition-point coupling model of the variable-speed power turbine; and according to the variable-speed power turbine multi-wo