New Framework for Optimal Current Sharing of Nonidentical Parallel Buck Converters

Delpoux, Romain; Trégouët, Jean-François; Gauthier, Jean-Paul; Lacombe, Cyril

doi:10.1109/tcst.2017.2787117

Cited by 7 publications

(23 citation statements)

References 9 publications

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“…[4], [5]) and active-sharing categories (e.g. [1], [3], [6]- [13]). The droop methods are based on a virtual resistance added to the output characteristic of the individual converters.…”

Section: A Literature Review On Parallel Dc-dc Convertersmentioning

confidence: 99%

A Distributed Control Strategy for Parallel DC-DC Converters

Sadabadi

2021

IEEE Control Syst. Lett.

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This letter addresses the problem of voltage regulation and balanced current sharing in a parallel connection of heterogeneous DC-DC converters sharing a common ZIP (constant impedance, constant current, and constant power) load. To this end, a distributed dynamic control approach is developed. The proposed control approach does not rely on the load profile and the number of active converters. The paper describes theoretical aspects in rigorous Lyapunov-based stability analysis, loadindependent characteristic, scalability, and plug-and-play feature of the control design, and verifies the performance of the proposed control mechanism via simulation case studies in MATLAB/Simscape Electrical environment.

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“…[4], [5]) and active-sharing categories (e.g. [1], [3], [6]- [13]). The droop methods are based on a virtual resistance added to the output characteristic of the individual converters.…”

Section: A Literature Review On Parallel Dc-dc Convertersmentioning

confidence: 99%

A Distributed Control Strategy for Parallel DC-DC Converters

Sadabadi

2021

IEEE Control Syst. Lett.

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“…This structure benefits from several advantages as a consequence of the distribution of the load current on multiple converters. Thereby, it is possible to improve the reliability [4], increase the ease of repair, improve the thermal management [5], reduce the output ripple by interleaving phases of the pulse-width modulation (PWM) [6], and increase the system efficiency [7].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, [7,12,13,14] propose control methods for the parallel interconnection of buck converters that achieve simultaneously the two control objectives, i.e. the voltage regulation and the current distribution.…”

Section: Introductionmentioning

confidence: 99%

“…For the dynamic approach, dynamical actua-tors can be taken into account (see [23,24] and also [7] for the case of parallel interconnection of converters) in a way that the total effort distribution converges slowly to the optimal value. Even though [23] deals with input constraints, incorporating state constraints is still an open problem.…”

Section: Introductionmentioning

confidence: 99%

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Optimal control allocation for the parallel interconnection of buck converters

Kreiss

Bodson²,

Delpoux³

et al. 2021

Control Engineering Practice

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“…The charging module of the DC charging pile is mainly constructed by the front-stage rectifier part and the back-stage DC/DC converter part. Among them, the power output of the charging module mainly involves the control of the downstream DC/DC converter [5]- [6].…”

Section: Introductionmentioning

confidence: 99%

Study on Parallel Current Sharing Technology of Power Module in DC Charging Pile for Electric Vehicle

Song¹,

Zhang²,

Jin³

et al. 2021

dtmse

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In order to meet the changing requirements of multiple types of electric vehicles, the layout and development of quick charging and DC charging piles are rapid. The modularized DC charging pile becomes the popular research field. Due to the differences in the parameters of each module in the charging pile, the current assumed by each module in parallel may not be the same, leading to the premature aging and damage of some modules and affecting the service life of the charging pile. In this paper, the isolated full-bridge DC/DC converter is taken as the power module topology, and the parallel current-sharing technology is studied. Two control methods are designed, one is the double-closed-loop cascade control of the voltage outer loop and the current inner loop, and the other is the adaptive double-loop based on charging mode. The current-sharing loop is added in the two controllers and the averaging-current method is adopted and the simulation verification of two-module and four-module in parallel is carried out. Through the comparison of load switching, the advantages of the he adaptive double-loop control method in the multimodule parallel connection, such as large stability margin and fast response speed, are validated.

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New Framework for Optimal Current Sharing of Nonidentical Parallel Buck Converters

Cited by 7 publications

References 9 publications

A Distributed Control Strategy for Parallel DC-DC Converters

A Distributed Control Strategy for Parallel DC-DC Converters

Optimal control allocation for the parallel interconnection of buck converters

Study on Parallel Current Sharing Technology of Power Module in DC Charging Pile for Electric Vehicle

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