Abstract
The main objective of this article is to design, implement, and test a feedback controller for a boost-type DC-DC converter employing the artificial immune system technique. When a boost-type DC-DC converter is operated in a closed-loop mode with a traditionally designed controller, the dynamic response is observed to be dissimilar at different operating points of the converter system. Hence, the feedback controller design is formulated as an optimization problem, and controller parameters are estimated through an artificial immune system based algorithm. Extensive simulation and corresponding experimental work are then carried out on the DC-DC converter with the artificial immune system based feedback controller. Comparison of the converter dynamic response with the proposed scheme to the one obtained through a conventional method as well as a genetic algorithm based approach shows that the new method gives a robust controller structure that yields very good dynamic response at all operating points. Computed and measured results are supplied.