Decentralized Interleaving of Paralleled Dc-Dc Buck Converters: Preprint

Brian Johnson; Mohit Sinha; Sairaj Dhople; Jason Poon; Miguel Rodriguez

Decentralized Interleaving of Paralleled Dc-Dc Buck Converters: Preprint

Brian Johnson, Mohit Sinha, Sairaj Dhople, Jason Poon, Miguel Rodriguez

Power Systems Engineering

Research output: Contribution to conference › Paper

Abstract

We present a decentralized control strategy that yields switch interleaving among parallel connected dc-dc buck converters without communication. The proposed method is based on the digital implementation of the dynamics of a nonlinear oscillator circuit as the controller. Each controller is fully decentralized, i.e., it only requires the locally measured output current to synthesize the pulse width modulation (PWM) carrier waveform. By virtue of the intrinsic electrical coupling between converters, the nonlinear oscillator-based controllers converge to an interleaved state with uniform phase-spacing across PWM carriers. To the knowledge of the authors, this work represents the first fully decentralized strategy for switch interleaving of paralleled dc-dc buck converters.

Original language	American English
Number of pages	8
State	Published - 2017
Event	2017 IEEE 18th Workshop on Control and Modeling for Power Electronics (COMPEL) - Stanford, California Duration: 9 Jul 2017 → 12 Jul 2017

Conference

Conference	2017 IEEE 18th Workshop on Control and Modeling for Power Electronics (COMPEL)
City	Stanford, California
Period	9/07/17 → 12/07/17

Bibliographical note

See NREL/CP-5D00-70299 for paper as published in IEEE proceedings

NREL Publication Number

NREL/CP-5D00-68307

Keywords

buck converter
carrier waveform
controller
dc dc converter
nonlinear oscillator
pulse width modulation

Access to Document

https://www.nrel.gov/docs/fy17osti/68307.pdf

Cite this

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title = "Decentralized Interleaving of Paralleled Dc-Dc Buck Converters: Preprint",

abstract = "We present a decentralized control strategy that yields switch interleaving among parallel connected dc-dc buck converters without communication. The proposed method is based on the digital implementation of the dynamics of a nonlinear oscillator circuit as the controller. Each controller is fully decentralized, i.e., it only requires the locally measured output current to synthesize the pulse width modulation (PWM) carrier waveform. By virtue of the intrinsic electrical coupling between converters, the nonlinear oscillator-based controllers converge to an interleaved state with uniform phase-spacing across PWM carriers. To the knowledge of the authors, this work represents the first fully decentralized strategy for switch interleaving of paralleled dc-dc buck converters.",

keywords = "buck converter, carrier waveform, controller, dc dc converter, nonlinear oscillator, pulse width modulation",

author = "Brian Johnson and Mohit Sinha and Sairaj Dhople and Jason Poon and Miguel Rodriguez",

note = "See NREL/CP-5D00-70299 for paper as published in IEEE proceedings; 2017 IEEE 18th Workshop on Control and Modeling for Power Electronics (COMPEL) ; Conference date: 09-07-2017 Through 12-07-2017",

year = "2017",

language = "American English",

}

TY - CONF

T1 - Decentralized Interleaving of Paralleled Dc-Dc Buck Converters: Preprint

AU - Johnson, Brian

AU - Sinha, Mohit

AU - Dhople, Sairaj

AU - Poon, Jason

AU - Rodriguez, Miguel

N1 - See NREL/CP-5D00-70299 for paper as published in IEEE proceedings

PY - 2017

Y1 - 2017

N2 - We present a decentralized control strategy that yields switch interleaving among parallel connected dc-dc buck converters without communication. The proposed method is based on the digital implementation of the dynamics of a nonlinear oscillator circuit as the controller. Each controller is fully decentralized, i.e., it only requires the locally measured output current to synthesize the pulse width modulation (PWM) carrier waveform. By virtue of the intrinsic electrical coupling between converters, the nonlinear oscillator-based controllers converge to an interleaved state with uniform phase-spacing across PWM carriers. To the knowledge of the authors, this work represents the first fully decentralized strategy for switch interleaving of paralleled dc-dc buck converters.

AB - We present a decentralized control strategy that yields switch interleaving among parallel connected dc-dc buck converters without communication. The proposed method is based on the digital implementation of the dynamics of a nonlinear oscillator circuit as the controller. Each controller is fully decentralized, i.e., it only requires the locally measured output current to synthesize the pulse width modulation (PWM) carrier waveform. By virtue of the intrinsic electrical coupling between converters, the nonlinear oscillator-based controllers converge to an interleaved state with uniform phase-spacing across PWM carriers. To the knowledge of the authors, this work represents the first fully decentralized strategy for switch interleaving of paralleled dc-dc buck converters.

KW - buck converter

KW - carrier waveform

KW - controller

KW - dc dc converter

KW - nonlinear oscillator

KW - pulse width modulation

M3 - Paper

T2 - 2017 IEEE 18th Workshop on Control and Modeling for Power Electronics (COMPEL)

Y2 - 9 July 2017 through 12 July 2017

ER -

Decentralized Interleaving of Paralleled Dc-Dc Buck Converters: Preprint

Abstract

Conference

Bibliographical note

NREL Publication Number

Keywords

Access to Document

Fingerprint

Cite this