Asynchronous motor semi-physical modeling method considering temperature change

The invention belongs to the technical field of simulation model construction of an asynchronous motor control system, particularly relates to an asynchronous motor semi-physical modeling method considering temperature change, and solves the technical problems in the background technology. The method comprises the following steps: respectively establishing a stator winding temperature thermal network model, a rotor winding temperature thermal network model and an asynchronous motor electrical characteristic model, discretizing the models, selecting a thermal model discretization operation step length as h1, selecting an electrical characteristic model discretization step length as h2, and putting the stator and rotor thermal network models into a CPU for operation. And the electrical characteristic model is put into the FPGA to operate, so that data interaction and synchronization between the CPU and the FPGA are realized. According to the method, the thermal resistance and thermal capacitance parallel model