A DLQR designed by means of a genetic algorithm for DC-DC boost converters

In this work, a genetic algorithm is employed to design a discrete linear quadratic regulator (DLQR) for a boost converter subject to switched loads. The model of the converter takes into account a parasitic resistance, a delay from digital control signal implementation and an integral action over t...

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Bibliographic Details
Published inXI Brazilian Power Electronics Conference pp. 74 - 78
Main Authors Montagner, V. F., Maccari, L. A., Dupont, F. H., Pinheiro, H.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2011
Subjects
Biological cells
Boost Converter
Discrete Linear Quadratic Regulator
Genetic Algorithm
Genetic algorithms
Optimal Control
Optimization
Power electronics
Switches
Vectors
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ISBN9781457716447
1457716445
ISSN2165-0454
DOI10.1109/COBEP.2011.6085202

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Summary:In this work, a genetic algorithm is employed to design a discrete linear quadratic regulator (DLQR) for a boost converter subject to switched loads. The model of the converter takes into account a parasitic resistance, a delay from digital control signal implementation and an integral action over the error. A genetic algorithm is used to search and provide an optimal choice for the weighting matrices of the DLQR. The objective function of the algorithm is evaluated using data from a standard circuit simulator, allowing to easily include nonlinearities as quantization and saturation. The control law is implemented using a digital signal processor leading to goods experimental results, which are also superior to those from a conventionally designed DLQR.
ISBN:9781457716447
1457716445
ISSN:2165-0454
DOI:10.1109/COBEP.2011.6085202