Methods for achieving target performance specifications for suspension controllers on low-speed Maglev vehicles using linear quadratic (LQ) control are examined. In particular, a technique involving frequency-domain weightings in the performance criterion integral to reach performance targets simultaneously for stochastic and deterministic inputs is investigated. It is shown that good performance is obtained with the added benefit of obviating the vexed problem of estimating criterion integral weightings in conventional LQG control design.
Inspec keywords: linear quadratic control; railways; magnetic levitation; frequency-domain synthesis
Other keywords:
Subjects: Control system analysis and synthesis methods; Optimal control; Other electromagnetic device applications; Rail-traffic system control; Transportation; Optimisation techniques
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