Modeling method of equivalent magnetic circuit model of double-rotor double-stator permanent magnet synchronous motor

The invention discloses a modeling method for an equivalent magnetic circuit model of a double-rotor double-stator permanent magnet synchronous motor. The method comprises the following steps: obtaining a first equivalent magnetic resistance calculation formula based on motor related data and a division result of a motor region; obtaining a second equivalent magnetic resistance calculation formula based on the classification division result of the internal and external motor magnetic circuit coupling region; based on a first equivalent magnetic resistance calculation formula and a second equivalent magnetic resistance calculation formula, solving a magnetic flux density result of each partial region in the equivalent magnetic circuit model, and based on the number of pole slots, establishing a unit motor finite element model to solve and obtain finite element analysis magnetic flux density distribution; and obtaining an equivalent magnetic resistance correction coefficient of an internal and external motor ma