Electronics Optics & Control, Volume. 20, Issue 12, 31(2013)
Affine Design of Subspace Predictive Control Under Fault Estimatio
A new direct design method was used based on closed loop inputoutput measured data for fault estimationand controllers were designed without setting up a state space model for the fault and system.An inputoutput relationship of the closed loop system was used to parameterize a least square problem for fault estimation.When imposing the lower and upper bounds constrain conditions on the faultsthe fast gradient method was applied to solve it.On basis of the fault estimationsa concept of the subspace predictive control was introduced to consider how to design the controller when the control inputs have the affine forms.The mutually iterative steepest descent method was used to obtain some affine terms and gain termsaccording to the separable principle.Finally the effectiveness of the method was demonstrated by an example of helicopter in hovering state.
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nWANG Jianhong. Affine Design of Subspace Predictive Control Under Fault Estimatio[J]. Electronics Optics & Control, 2013, 20(12): 31
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Received: Jan. 8, 2013
Accepted: --
Published Online: Dec. 17, 2013
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