Magnetic suspension high-speed energy storage flywheel rotor vibration suppression method based on reduced order LESO

The invention provides a reduced order LESO algorithm which is used for realizing stable suspension of a magnetic suspension high-speed energy storage flywheel rotor and vibration suppression in a full rotation speed range. The method comprises the following steps: firstly, establishing a second-order mathematical model of a magnetic suspension high-speed energy storage flywheel rotor system considering a gyroscopic effect and unbalanced force; coupling between different degrees of freedom in the second-order mathematical model of each degree of freedom and the influence of unbalanced force are used as external disturbance, information of the degree of freedom is used as internal disturbance, and reduced-order LESO is designed to estimate the total disturbance including the external disturbance and the internal disturbance in real time; and finally, an LSEF is established to generate a control signal, and total disturbance is compensated. Simulation results show that the method realizes effective decoupling a