The invention discloses a radial
permanent magnet motor multi-objective optimization method and
system considering end
magnetic flux leakage, and the method comprises the steps: constructing a two-dimensional radial
permanent magnet motor model based on a three-dimensional radial
permanent magnet motor model, introducing a magnetic conductance coefficient in a main
magnetic flux leakage region in the two-dimensional radial permanent
magnet motor model, and constructing a two-dimensional
equivalent model; determining an optimization target, a design parameter and a value range of the design parameter according to the obtained two-dimensional
equivalent model; according to the method, the function of performing multi-objective optimization on the radial permanent
magnet motor under the condition of considering the end
magnetic flux leakage is realized, and the two-dimensional
equivalent model is constructed by iteratively calculating the magnetic conductance coefficient through the
radius of each air domain and the division number in the main
magnetic flux leakage region, so that the calculation precision is guaranteed; and by adopting comprehensive
sensitivity analysis to carry out hierarchical optimization on the design parameters, the problems that the precision of the agent model is reduced and an optimization
algorithm is difficult to converge due to a large number of design variables can be solved, the calculation time is shortened, and the method is suitable for being widely popularized and used.