LQR-based control of parallel-connected boost dc-dc converters: a comparison with classical current-mode control
by M.R.D. Al-Mothafar; S.M. Radaideh; M.A. Abdullah
International Journal of Computer Applications in Technology (IJCAT), Vol. 45, No. 1, 2012

Abstract: This work investigates the application of the Linear Quadratic Regulator (LQR) technique to a two-module parallel-connected Current-Mode-Controlled (CMC) Pulse-Width-Modulated (PWM) dc-dc boost converter operating in the continuous conduction mode. New feedback controllers are designed for the modular step-up converter under two different control schemes. The dynamic responses are compared with those obtained using the classical control approach. The role of LQR-based control in providing equal-current sharing among the constituent modules is addressed. Cycle-by-cycle simulations are carried out to validate the analysis.

Online publication date: Tue, 30-Oct-2012

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