A Pole Cancellation Strategy for Stabilising a 3KW Solar Power Platform

J.T. Agee (Botswana), M. de Lazzer (France), and K. Yanev (Botswana)

Keywords

Solar power, PoleZero Cancellation, and Notch Filter Controller

Abstract

The paper investigates the dynamic performance of a locally designed 3KW solar power platform. A poorly damped dominant pole-pair (damping factor 0.0121) was found located near the origin of the s-plane of the transfer function of the open-loop platform system: causing overshoots of up to 96% and a long settling time of 105 seconds. A zero-pole cancelling controller was designed to replace these poorly-damped open-loop poles with a more stable dominant pole-pair. The controller improved the damping to 0.71, reduced the settling time to 2 seconds and the overshoot to 4.3%.

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