Load flow calculation method, device and equipment for multi-energy coupling system

The invention provides a load flow calculation method, device and equipment for a multi-energy coupling system, and relates to the technical field of energy management, and the method comprises the steps: constructing a natural gas network model, a heat supply network model, a power network model and a coupling equipment model; obtaining a steady-state model of the multi-energy coupling system according to the natural gas network model, the heat supply network model, the power network model and the coupling equipment model; obtaining a nonlinear algebraic equation of the multi-energy coupling system according to the steady-state model of the multi-energy coupling system; obtaining a fifth-order precision solution and a fourth-order precision solution of the multi-energy coupling system according to the nonlinear algebraic equation and a continuous Newton method; and obtaining the power flow of the multi-energy coupling system according to the fifth-order precision solution and the fourth-order precision solut