Author, as appears in the article.: González-Castaño C; Restrepo C; Giral R; Vidal-Idiarte E; Calvente J

Department: Enginyeria Electrònica, Elèctrica i Automàtica

URV's Author/s: Calvente Calvo, Francisco Javier / Giral Castillon, Roberto / Vidal Idiarte, Enric

Keywords: Switching frequency Resolution Quantization-induced perturbations (qip) Multisampled average current control (macc) Limit-cycle oscillation (lco) Digital control Dc-dc power converter Current-mode controller

Abstract: © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This paper analyzes the presence of undesired quantization-induced perturbations (QIP) in a dc-dc buck-boost converter using a two-loop digital current control. This work introduces design conditions regarding control laws gains and signal quantization to avoid the quantization effects due to the addition of the outer voltage loop in a digital current controlled converter. The two-loop controller is composed of a multisampled average current control (MACC) in the inner current-programmed loop and a proportional-integrator compensator at the external loop. QIP conditions have been evaluated through simulations and experiments using a digitally controlled pulse width modulation (DPWM) buck-boost converter. A 400 V 1.6 kW proof-of-concept converter has been used to illustrate the presence of QIP and verify the design conditions. The controller is programmed in a digital signal controller (DSC) TMS320F28377S with a DPWM with 8.96-bit equivalent resolution, a 12-bit ADC for current sampling, and a 12-bit ADC for voltage sampling or a 16-bit ADC for voltage error sampling.

Thematic Areas: Química Process chemistry and technology Physics, applied Materials science, multidisciplinary Materials science (miscellaneous) Materials science (all) Materiais Instrumentation General materials science General engineering Fluid flow and transfer processes Engineering, multidisciplinary Engineering (miscellaneous) Engineering (all) Engenharias ii Engenharias i Computer science applications Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências agrárias i Ciência de alimentos Chemistry, multidisciplinary Biodiversidade Astronomia / física

licence for use: https://creativecommons.org/licenses/by/3.0/es/

Author's mail: enric.vidal@urv.cat javier.calvente@urv.cat roberto.giral@urv.cat

Author identifier: 0000-0002-6016-4096 0000-0001-8012-1889 0000-0001-6582-6741

Record's date: 2023-02-19

Papper version: info:eu-repo/semantics/publishedVersion

Link to the original source: https://www.mdpi.com/2076-3417/10/20/7179

Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/

Papper original source: Applied Sciences-Basel. 10 (20): 1-15

APA: González-Castaño C; Restrepo C; Giral R; Vidal-Idiarte E; Calvente J (2020). Adc quantization effects in two-loop digital current controlled dc-dc power converters: Analysis and design guidelines. Applied Sciences-Basel, 10(20), 1-15. DOI: 10.3390/app10207179

Article's DOI: 10.3390/app10207179

Entity: Universitat Rovira i Virgili

Journal publication year: 2020

Publication Type: Journal Publications