DC-Link Voltage Coordinated-Proportional Control for Cascaded Converter with Zero Steady-State Error and Reduced System Type

Hdl Handle:
http://hdl.handle.net/10034/581965
Title:
DC-Link Voltage Coordinated-Proportional Control for Cascaded Converter with Zero Steady-State Error and Reduced System Type
Authors:
Tian, Yanjun; Loh, Poh C.; Deng, Fujin; Chen, Zhe; Hu, Yanting
Abstract:
Cascaded converter is formed by connecting two sub-converters together, sharing a common intermediate DC-link voltage. Regulation of this DC-link voltage is frequently realized with a Proportional-Integral (PI) controller, whose high gain at DC helps to force a zero steady-state tracking error. Such precise tracking is however at the expense of increasing the system type, caused by the extra pole at the origin introduced by the PI controller. The overall system may hence be tougher to control. To reduce the system type while preserving precise DC-link voltage tracking, this paper proposes a coordinated control scheme for the cascaded converter, which uses only a proportional DC-link voltage regulator. The resulting converter is thus dynamically faster, and when compared with the conventional PI-controlled converter, it is less affected by impedance interaction between its two sub-converters. The proposed scheme can be used with either unidirectional or bidirectional power flow, and has been verified by simulation and experimental results presented in the paper.
Affiliation:
1. Department of Energy Technology, Aalborg University, Denmark; 2. Faculty of Science and Engineering, University of Chester, UK
Citation:
Tian, Y., Loh, P. C., Deng, F., Chen, Z., & Hu, Y. (2016). DC-Link Voltage Coordinated-Proportional Control for Cascaded Converter With Zero Steady-State Error and Reduced System Type. IEEE Transactions on Power Electronics, 31(4), 3177-3188. doi: 10.1109/TPEL.2015.2444386
Publisher:
IEEE
Journal:
IEEE Transactions on Power Electronics
Publication Date:
11-Jun-2015
URI:
http://hdl.handle.net/10034/581965
DOI:
10.1109/TPEL.2015.2444386
Additional Links:
http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=7122361
Type:
Working Paper
Language:
en
Description:
copyright 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
ISSN:
0885-8993; 1941-0107
Appears in Collections:
Electronic and Electrical Engineering

Full metadata record

DC FieldValue Language
dc.contributor.authorTian, Yanjunen
dc.contributor.authorLoh, Poh C.en
dc.contributor.authorDeng, Fujinen
dc.contributor.authorChen, Zheen
dc.contributor.authorHu, Yantingen
dc.date.accessioned2015-11-10T09:30:11Zen
dc.date.available2015-11-10T09:30:11Zen
dc.date.issued2015-06-11en
dc.identifier.citationTian, Y., Loh, P. C., Deng, F., Chen, Z., & Hu, Y. (2016). DC-Link Voltage Coordinated-Proportional Control for Cascaded Converter With Zero Steady-State Error and Reduced System Type. IEEE Transactions on Power Electronics, 31(4), 3177-3188. doi: 10.1109/TPEL.2015.2444386en
dc.identifier.issn0885-8993en
dc.identifier.issn1941-0107en
dc.identifier.doi10.1109/TPEL.2015.2444386en
dc.identifier.urihttp://hdl.handle.net/10034/581965en
dc.descriptioncopyright 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.en
dc.description.abstractCascaded converter is formed by connecting two sub-converters together, sharing a common intermediate DC-link voltage. Regulation of this DC-link voltage is frequently realized with a Proportional-Integral (PI) controller, whose high gain at DC helps to force a zero steady-state tracking error. Such precise tracking is however at the expense of increasing the system type, caused by the extra pole at the origin introduced by the PI controller. The overall system may hence be tougher to control. To reduce the system type while preserving precise DC-link voltage tracking, this paper proposes a coordinated control scheme for the cascaded converter, which uses only a proportional DC-link voltage regulator. The resulting converter is thus dynamically faster, and when compared with the conventional PI-controlled converter, it is less affected by impedance interaction between its two sub-converters. The proposed scheme can be used with either unidirectional or bidirectional power flow, and has been verified by simulation and experimental results presented in the paper.en
dc.language.isoenen
dc.publisherIEEEen
dc.relation.urlhttp://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=7122361en
dc.rightsArchived with thanks to IEEE Transactions on Power Electronicsen
dc.subjectCascaded Converteren
dc.subjectDual Active Bridgeen
dc.subjectImpedance Matchingen
dc.subjectProportional Controlen
dc.subjectCoordinated Controlen
dc.titleDC-Link Voltage Coordinated-Proportional Control for Cascaded Converter with Zero Steady-State Error and Reduced System Typeen
dc.typeWorking Paperen
dc.contributor.department1. Department of Energy Technology, Aalborg University, Denmark; 2. Faculty of Science and Engineering, University of Chester, UKen
dc.identifier.journalIEEE Transactions on Power Electronicsen
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