Frequency-modulation control of a DC/DC current-source parallel-resonant converter
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessOpen Access
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ProjectGESTION Y CONTROL DE MICRORREDES DE CORRIENTE ALTERNA E INTERCONEXION CON BUSES DE CONTINUA EN MICRORREDES HIBRIDAS (MINECO-ENE2015-64087-C2-1-R)
This paper proposes a frequency-modulation control scheme for a dc/dc current-source parallel-resonant converter with two possible configurations. The basic configuration comprises an external voltage loop, an internal current loop, and a frequency modulator: the voltage loop is responsible for regulating the output voltage, the current loop makes the system controllable and limits the input current, and the modulator provides robustness against variations in resonant component values. The enhanced configuration introduces the output inductor current as a feed-forward term and clearly improves the transient response to fast load changes. The theoretical design of these control schemes is performed systematically by first deriving their small-signal models and second using Bode diagram analysis. The actual performance of the proposed control schemes is experimentally validated by testing on a laboratory prototype.
CitationMoradi, M., Castilla, M., Momeneh, A., Miret, J., Garcia de Vicuña, J. Frequency-modulation control of a DC/DC current-source parallel-resonant converter. "IEEE transactions on industrial electronics", 1 Juliol 2017, vol. 64, núm. 7, p. 5392-5402.
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