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Application of artificial bee colony algorithm to auto-tuning of state feedback controller for DC-DC power converter

Tarczewski T., Niewiara Ł. J., Grzesiak L M.

Power Electronics and Drives

2016

Vol. 1 (36), No. 2

83--96

The article presents an auto-tuning method of state feedback voltage controller for DC-DC power converter. The penalty matrices employed for calculation of controller’s coefficients were obtained by using nature-inspired artificial bee colony (ABC) optimization algorithm. This overcomes the main drawback of state feedback control related to time-consuming trial-and-error tuning procedure. The optimization algorithm takes into account constraints of selected state and control variables of DC-DC power converter. In order to meet all control objectives (i.e., fast voltage response and chattering-free control signal) an appropriate performance index is proposed. Proper selection of state feedback controller (SFC) coefficients is proven by simulation and experimental tests of DC-DC power converter.

Comparision of Buck-Converter parameters quality depending on coil selection

Pragłowska-Ryłko N.

Acta Innovations

2015

no. 17

22--29

Buck-Converters belong to DC/DC converters group. One of the main problems during the design stage of DC/DC converter is the proper component selection. The aim of this article is to describe selection of the optimal inductor for the Buck-Converter, enabling to minimize the device output overvoltage, while getting possibly high device efficiency. In order to verify the quality parameters, author made an efficiency comparison of the buck converter, depending on used inductor. Conclusions from this paper allow for optimal selection of coils for the Buck-Converter depending on given criteria.