INTELLIGENT CONTROL OF MIMO ACTIVE MAGNETIC SUSPENSION SYSTEM OF HIGH-PRECISION INERTIAL GUIDANCE GYROSCOPE

摘要

Magnetic suspension of floater could enhance well the accuracy and reliability of liquid-floated gyroscopes. This paper studies the design and implement of intelligent Active Magnetic Suspension (AMS) system matching with high-precision inertial instruments. The rule-based control algorithm is presented, in which the decoupling, stiffness-changing and period-varying control effects are involved. A new design index and approach of AMS electromagnetic devices is brought forth, and the practical system circuits of AMS are developed. The empirical results show that the intelligent control method achieves a lot of advantages and the accuracy improvement of gyros.