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State Feedback Control of Multilevel Inverters for DSTATCOM Applications

Shukla, Anshuman, Ghosh, Arindam, & Joshi, Avinash (2007) State Feedback Control of Multilevel Inverters for DSTATCOM Applications. IEEE Transactions on Power Delivery, 22(4), pp. 2409-2418.

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Abstract

In this paper, load compensation using multilevel inverter-based distribution static compensator (DSTATCOM) is presented. The DSTATCOM is connected to a three-phase four-wire (3p4w) distribution system. Two different multilevel inverter topologies are used to realize the DSTATCOM. They are diode-clamped multilevel inverter (DCMLI) and flying capacitor multilevel inverter (FCMLI). A compensating technique has been derived, which uses the state feedback control to the multilevel inverters-based DSTATCOMs. A switching strategy for the multilevel inverters that ensures utilization of all output voltage states of the inverter for efficient tracking of references has been proposed. The schemes of dc-link capacitor voltage control for DCMLI and flying capacitor voltage control for FCMLI have been discussed. Comparative studies of performances of the two DSTATCOM topologies are performed. The simulation studies are performed using PSCAD/EMTDC to validate the efficacy of the proposed control scheme.

Impact and interest:

16 citations in Scopus
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11 citations in Web of Science®

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ID Code: 14134
Item Type: Journal Article
Keywords: invertors, power capacitors, power distribution control, state feedback, static VAr compensators, voltage control
DOI: 10.1109/TPWRD.2007.905271
ISSN: 0885-8977
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Power and Energy Systems Engineering (excl. Renewable Power) (090607)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2007 IEEE
Copyright Statement: Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Deposited On: 23 Jul 2008
Last Modified: 29 Feb 2012 23:35

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