Experimental research on accurate compensation of moving-gimbal effects based on simplified FXLMS algorithm in magnetically suspended control moment gyroscope

Magnetically Suspended Control Moment Gyroscope (MSCMG) is a kind of high precision long life torque producing actuator which is usually used in spacecraft. Accurate compensation of moving-gimbal effects is one of the key technologies in high precision MSCMG. But complex model and much higher computation cost has limited its application. Through analyzing object properties, this paper presents a simplified FXLMS algorithm. In this algorithm, the object filter is replaced by constant diagonal matrix. As a result, the computation cost decreases greatly. The simulation and experiment are presented to verify the method. The experimental results indicate that the adaptive control system based on simplified FXLMS algorithm has the property of good convergence, fast response, enough precision and strong robustness.