Sliding Mode Control with Inductor Current Observer for Interleaved DC-DC Converters

Marc Kanzian; Matteo Agostinelli; Mario Huemer

doi:10.1109/COMPEL.2017.8013382

Sliding Mode Control with Inductor Current Observer for Interleaved DC-DC Converters

Marc Kanzian
, Matteo Agostinelli
, Mario Huemer

Institute of Signal Processing

Research output: Chapter in Book/Report/Conference proceeding › Conference proceedings › peer-review

Abstract

Due to their switching behavior, DC-DC converters are inherently variable structure systems. Control laws based on sliding mode theory are therefore widely used, because of their discontinuous nature. Although offering good performance, the downsides of sliding mode control are the requirement of full state information and a variable switching frequency. This paper presents a digital sliding mode controller for a two-phase interleaved buck converter. Rather than a direct current measurement, a sliding mode observer is proposed to digitally reconstruct the inductor currents. Moreover, a constant switching frequency is achieved by synchronizing the pulse-width modulation (PWM) signals to a clock. Simulation and experimental results are provided to demonstrate the functionality and performance of the proposed control scheme and observer.

Original language	English
Title of host publication	Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL 2017)
Publisher	IEEE
Number of pages	7
ISBN (Electronic)	9781509053261
ISBN (Print)	978-1-5090-5326-1
DOIs	https://doi.org/10.1109/COMPEL.2017.8013382
Publication status	Published - Jul 2017

Fields of science

202 Electrical Engineering, Electronics, Information Engineering
202015 Electronics
202022 Information technology
202023 Integrated circuits
202025 Power electronics
202028 Microelectronics
202034 Control engineering

JKU Focus areas

Computation in Informatics and Mathematics
Mechatronics and Information Processing

Access to Document

10.1109/COMPEL.2017.8013382

Cite this

@inproceedings{af5082727f704e6a8542b5a13501ea33,

title = "Sliding Mode Control with Inductor Current Observer for Interleaved DC-DC Converters",

abstract = "Due to their switching behavior, DC-DC converters are inherently variable structure systems. Control laws based on sliding mode theory are therefore widely used, because of their discontinuous nature. Although offering good performance, the downsides of sliding mode control are the requirement of full state information and a variable switching frequency. This paper presents a digital sliding mode controller for a two-phase interleaved buck converter. Rather than a direct current measurement, a sliding mode observer is proposed to digitally reconstruct the inductor currents. Moreover, a constant switching frequency is achieved by synchronizing the pulse-width modulation (PWM) signals to a clock. Simulation and experimental results are provided to demonstrate the functionality and performance of the proposed control scheme and observer.",

author = "Marc Kanzian and Matteo Agostinelli and Mario Huemer",

year = "2017",

month = jul,

doi = "10.1109/COMPEL.2017.8013382",

language = "English",

isbn = "978-1-5090-5326-1",

booktitle = "Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL 2017)",

publisher = "IEEE",

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TY - GEN

T1 - Sliding Mode Control with Inductor Current Observer for Interleaved DC-DC Converters

AU - Kanzian, Marc

AU - Agostinelli, Matteo

AU - Huemer, Mario

PY - 2017/7

Y1 - 2017/7

N2 - Due to their switching behavior, DC-DC converters are inherently variable structure systems. Control laws based on sliding mode theory are therefore widely used, because of their discontinuous nature. Although offering good performance, the downsides of sliding mode control are the requirement of full state information and a variable switching frequency. This paper presents a digital sliding mode controller for a two-phase interleaved buck converter. Rather than a direct current measurement, a sliding mode observer is proposed to digitally reconstruct the inductor currents. Moreover, a constant switching frequency is achieved by synchronizing the pulse-width modulation (PWM) signals to a clock. Simulation and experimental results are provided to demonstrate the functionality and performance of the proposed control scheme and observer.

AB - Due to their switching behavior, DC-DC converters are inherently variable structure systems. Control laws based on sliding mode theory are therefore widely used, because of their discontinuous nature. Although offering good performance, the downsides of sliding mode control are the requirement of full state information and a variable switching frequency. This paper presents a digital sliding mode controller for a two-phase interleaved buck converter. Rather than a direct current measurement, a sliding mode observer is proposed to digitally reconstruct the inductor currents. Moreover, a constant switching frequency is achieved by synchronizing the pulse-width modulation (PWM) signals to a clock. Simulation and experimental results are provided to demonstrate the functionality and performance of the proposed control scheme and observer.

UR - http://ieeexplore.ieee.org/document/8013382/

U2 - 10.1109/COMPEL.2017.8013382

DO - 10.1109/COMPEL.2017.8013382

M3 - Conference proceedings

SN - 978-1-5090-5326-1

BT - Proceedings of the IEEE Workshop on Control and Modeling for Power Electronics (COMPEL 2017)

PB - IEEE

ER -

Sliding Mode Control with Inductor Current Observer for Interleaved DC-DC Converters

Abstract

Fields of science

JKU Focus areas

Access to Document

Other files and links

Multi-phase DC/DC converters for automotive microcontroller applications

Cite this

Sliding Mode Control with Inductor Current Observer for Interleaved DC-DC Converters

Abstract

Fields of science

JKU Focus areas

Access to Document

Other files and links

Projects

Multi-phase DC/DC converters for automotive microcontroller applications

Cite this