Output plane analysis of load-sharing in multiple-module converter systems

Glaser, John; Witulski, A.F.

doi:10.1109/63.285492

Cited by 64 publications

(24 citation statements)

References 11 publications

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“…When the load suddenly changes, it doesn't have the problem of frequent replacement of the main module [7]. What's more, current sharing information is passed via the CAN bus communication.…”

Section: A Current-sharing Methodsmentioning

confidence: 99%

Study on digital controller of multi-task interleaving parallel BUCK modules

Li¹,

Zhou²,

Jianbo³

et al. 2012

26th International Conference on Electrical Contacts (ICEC 2012)

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Take three parallel Buck modules for example. By adopting master-slave current sharing technology, a digital controller is designed on the basis of DSP56F807 and C/OS operating system. As the key parts of the research, interleaving parallel technology and current sharing strategy, as well as the scheduling and division of the task modules, is introduced in detail. The parallel power system and the design of real-time multi-task software play a significance role for the improvement of the reliability of the system.

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Section: A Current-sharing Methodsmentioning

confidence: 99%

Study on digital controller of multi-task interleaving parallel BUCK modules

Li¹,

Zhou²,

Jianbo³

et al. 2012

26th International Conference on Electrical Contacts (ICEC 2012)

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“…However, the absence of a current-sharing loop imposes some specific requirements on the individual branches in order to provide natural current sharing [16,17]. This has been commonly known as the droop method [18,19].…”

Section: Without Current-sharing Loopmentioning

confidence: 99%

Circuit theory of paralleling switching converters

Huang

Tse

2008

Circuit Theory & Apps

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SUMMARYThis paper studies the various paralleling styles for dc-dc switching converters from a circuit theoretic viewpoint. The study begins with a systematic classification of the types of parallel-connected dc-dc converters. In the classification, converters are modeled as current sources or voltage sources. From Kirchhoff's laws, the possible connection styles for paralleling current sources and voltage sources are derived, leading to the identification of three types of configurations for paralleling dc-dc converters. Then, control arrangements are classified according to the presence of current-sharing and voltage-regulation loops. Moreover, detailed operating principles with and without a current-sharing loop for the three basic paralleling connections to obtain both current sharing and voltage regulation are given. Applying smallsignal analysis to the practical circuits, the inherent characteristics of each scheme are expounded. The roles of the current-sharing loop and origins of current-sharing errors are highlighted. Characteristics for all the schemes are obtained in terms of their performances in current sharing and voltage regulation. Finally, an experiment prototype is built to validate the analysis. The results clearly show the properties of the various paralleling schemes.

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“…The control of the system ensures equal input current and output voltage sharing among modules in [5]. Latest research about the control and application of IPOS structure in high power and high gain application are discussed in [7,8]. The IPOP connection has been driven by the requirement of low voltage and high current applications or the reduction of EMI filters and ripples by applying interleaving technologies.…”

Section: Introductionmentioning

confidence: 99%

Control of input-series and output-independent power converter building block system based on buck converter topology

Han

2015

2015 IEEE Applied Power Electronics Conference and Exposition (APEC)

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A modularized battery system made up of integrated battery building blocks has been brought into sight recently. The battery building block system has advantages such as no external equalizers, no centralized converters, reduced power and voltage stresses, easy reconfiguration and customization, control of thermal distribution, etc. However, the control of charging the building block system faces challenges in stabilizing the system while distributing different power to different modules. This paper recognizes the battery building block system as a single-input and multiple-output system (SIMO). The system features an input-series and outputindependent (ISOI) architecture, where the inputs of the converters are connected in series while the output of each converter is independently supplying different load. The modeling and control of the ISOI system are demonstrated. A two-level supervised distributed control method is proposed and analyzed to achieve the stable power distribution control with simulation and experiment validation.

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Output plane analysis of load-sharing in multiple-module converter systems

Cited by 64 publications

References 11 publications

Study on digital controller of multi-task interleaving parallel BUCK modules

Study on digital controller of multi-task interleaving parallel BUCK modules

Circuit theory of paralleling switching converters

Control of input-series and output-independent power converter building block system based on buck converter topology

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