Control oriented modeling of DCDC converters

Simon Schmidt; Max Richter; Jens Martin Oberrath; Paolo Mercorelli

doi:10.1016/j.ifacol.2018.03.057

Control oriented modeling of DCDC converters

Simon Schmidt
, Max Richter
, Jens Martin Oberrath
, Paolo Mercorelli

Professorship of Control and Drive Systems

Panasonic Industrial Devices Europe GmbH

Research output: Journal contributions › Journal articles › Research › peer-review

5 Citations (Scopus)

Abstract

DCDC converters are widely used in different fields of applications to interface between DC voltage buses. A common structure of such converters is based on a resonant topology in which the working frequency of the converter should be close to the concerning resonance frequency. Therefore, a control scheme with a suitable model to design a controller is needed. Within this manuscript a nonlinear model of a CLLC DCDC converter is derived by means of the extended describing function method and a dq decomposition. Afterwards, this model is linearized to allow for a small signal analysis of the system. Both models are compared to a simulation of the DCDC converter in MATLAB Simscape and show good agreement.

Original language	English
Journal	IFAC-PapersOnLine
Volume	51
Issue number	2
Pages (from-to)	331-336
Number of pages	6
ISSN	2405-8971
DOIs	https://doi.org/10.1016/j.ifacol.2018.03.057
Publication status	Published - 01.01.2018

Research areas and keywords

circuit models
circuit simulation
control nonlinearities
Control oriented models
control system analysis
describing functions
differential equations
dq decomposition
Engineering

ASJC Scopus Subject Areas

Control and Systems Engineering

Access to Document

10.1016/j.ifacol.2018.03.057

Power electronics for applications in automotive industries
Mercorelli, P. (Project manager, academic), Oberrath, J. (Project manager, academic) & Schmidt, S. (Project staff)
Panasonic Industrial Devices Europe GmbH
01.11.16 → 31.12.21
Project: Research

Cite this

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title = "Control oriented modeling of DCDC converters",

abstract = "DCDC converters are widely used in different fields of applications to interface between DC voltage buses. A common structure of such converters is based on a resonant topology in which the working frequency of the converter should be close to the concerning resonance frequency. Therefore, a control scheme with a suitable model to design a controller is needed. Within this manuscript a nonlinear model of a CLLC DCDC converter is derived by means of the extended describing function method and a dq decomposition. Afterwards, this model is linearized to allow for a small signal analysis of the system. Both models are compared to a simulation of the DCDC converter in MATLAB Simscape and show good agreement.",

keywords = "circuit models, circuit simulation, control nonlinearities, Control oriented models, control system analysis, describing functions, differential equations, dq decomposition, Engineering",

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year = "2018",

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AU - Schmidt, Simon

AU - Richter, Max

AU - Oberrath, Jens Martin

AU - Mercorelli, Paolo

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N2 - DCDC converters are widely used in different fields of applications to interface between DC voltage buses. A common structure of such converters is based on a resonant topology in which the working frequency of the converter should be close to the concerning resonance frequency. Therefore, a control scheme with a suitable model to design a controller is needed. Within this manuscript a nonlinear model of a CLLC DCDC converter is derived by means of the extended describing function method and a dq decomposition. Afterwards, this model is linearized to allow for a small signal analysis of the system. Both models are compared to a simulation of the DCDC converter in MATLAB Simscape and show good agreement.

AB - DCDC converters are widely used in different fields of applications to interface between DC voltage buses. A common structure of such converters is based on a resonant topology in which the working frequency of the converter should be close to the concerning resonance frequency. Therefore, a control scheme with a suitable model to design a controller is needed. Within this manuscript a nonlinear model of a CLLC DCDC converter is derived by means of the extended describing function method and a dq decomposition. Afterwards, this model is linearized to allow for a small signal analysis of the system. Both models are compared to a simulation of the DCDC converter in MATLAB Simscape and show good agreement.

KW - circuit models

KW - circuit simulation

KW - control nonlinearities

KW - Control oriented models

KW - control system analysis

KW - describing functions

KW - differential equations

KW - dq decomposition

KW - Engineering

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DO - 10.1016/j.ifacol.2018.03.057

M3 - Journal articles

AN - SCOPUS:85046665698

SN - 2405-8971

VL - 51

SP - 331

EP - 336

JO - IFAC-PapersOnLine

JF - IFAC-PapersOnLine

IS - 2

ER -

Control oriented modeling of DCDC converters

Abstract

Research areas and keywords

ASJC Scopus Subject Areas

Access to Document

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Projects

Power electronics for applications in automotive industries

Cite this