Abstract
In medical devices, permanent magnet direct current (PMDC) motor plays an important role, especially for infusion pumps. This paper makes an attempt to find the suitable parameters of PMDC motor. To attain the required speed for PMDC, the selection of parameters, for instance, rotor inertia, armature resistance, inductance and back electromotive force constant are essential. The work proposed utilizes linear quadratic regulator (LQR) control algorithm to evaluate the parameters. In order to achieve this, LQR parameters are simulated. The simulation results are carried out for medical grade; PMDC motor and the parameters chosen are able to achieve the required speed with quick rise time till 2.45 s.KeywordsLQRDC motorInfusion pumpOptimal control
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