Output regulation based integral model reference adaptive control with bounded switching gain for space inertial sensor
Output regulation based multivariable Model Reference Adaptive Control(MRAC)is applied to solve the stable output reference tracking problem when the system state cannot be directly obtained.In the electrostatic suspension control of the inertial sensor inside the space gravitational wave detection spacecraft,considering its stable requirement as the inertial reference of the spacecraft platform,the complex discontinuous disturbance effect in dual-mass dynamics,and the instantaneous response to different working modes,an integral output tracking MRAC is proposed in this paper for space inertial sensor,and a bounded switching adaptive gain is introduced for anti-input saturation,transient suppression in the case of system discontinuity.The Lyapunov analysis based on the Filippov set and the generalized gradient proves the convergence of each closed-loop signal under the scheme,and for the sample space gravitational wave detection spacecraft,the numerical simulation verifies the good suppression effect of the non-sensitive axis DOF of the dual-mass space inertial sensor against displacement noise,residual acceleration and mode-switching transients as the key payload in the detection spacecraft.
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维普
