Construction method of magnetic suspension motorized spindle rotor vibration suppression controller

• Main Authors: ZHU QIU, SHEN LINFENG
• Format: Patent
• Language: Chinese; English
• Published: 17.05.2024
• Subjects: CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING

The invention discloses a construction method of a magnetic suspension motorized spindle rotor vibration suppression controller, which comprises the following steps of: inputting a reference input signal with the same frequency as the rotating speed of a rotor into two novel vibration suppression controllers, when a displacement error is greater than an error threshold value, obtaining a step length factor by an LMS (Least Mean Square) algorithm module by adopting an inverse hyperbolic tangent function model; the weight coefficient of the current moment is adjusted based on the step length factor, the displacement error of the previous moment and the reference input signal of the previous moment, the weighted summator obtains compensation values, the four compensation values and the four displacement difference values are subtracted in a one-to-one correspondence mode, and the displacement error of the current moment is updated; radial four-degree-of-freedom vibration signals are suppressed at the same time t