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Easy current slope detection for low cost implementation of the direct adaptive current control for DC-DC-converters

Liske, Andreas 1; Stamer, Fabian 1; Braun, Michael 1
1 Elektrotechnisches Institut (ETI), Karlsruher Institut für Technologie (KIT)


"Direct Adaptive Current Control" (DACC) is a completely adaptive current control scheme with excellent control quality and high dynamics. It is based on the detection of the current slopes during each switching state of the utilized inverter and identifies the system within one period. No control path parameters are needed for setup. One method to measure the current slopes is fast oversampling of the current followed by a least squares estimator to filter the noise. This is well-proven but is difficult at high switching frequencies and implies the use of powerful hardware. In this paper a new algorithm for the detection of the current slopes in DC/DC-Converters is presented that does not need oversampling or a complex filter. Its simplicity allows for easy implementation in low-cost microcontrollers and yet be operated at high switching frequencies. The presented algorithm enables the implementation of the DACC as a low-cost, high dynamic and completely adaptive current controller for fast-switching DC/DC-Converters.

Postprint §
DOI: 10.5445/IR/1000117520
Veröffentlicht am 04.03.2020
DOI: 10.1109/ECCE.2015.7309686
Zitationen: 9
Zitationen: 9
Cover der Publikation
Zugehörige Institution(en) am KIT Elektrotechnisches Institut (ETI)
Publikationstyp Proceedingsbeitrag
Publikationsdatum 20.09.2015
Sprache Englisch
Identifikator ISBN: 978-1-4673-7151-3
KITopen-ID: 1000117520
Erschienen in 2015 IEEE Energy Conversion Congress and Exposition (ECCE), 20-24 September 2015, Montreal, Canada
Veranstaltung IEEE Energy Conversion Congress and Exposition (ECCE 2015), Montreal, Kanada, 20.09.2015 – 24.09.2015
Verlag Institute of Electrical and Electronics Engineers (IEEE)
Seiten 180–186
Schlagwörter Switches, Current measurement, Pulse width modulation, Switching frequency, Hardware, Mathematical model, adaptive control, DC-DC power converters, electric current control, switching converters, easy current slope detection, direct adaptive current control, DC-DC converters, low cost microcontroller, fast switching converter
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