Fatma A. Khera
Integrating a Single Z-Source Network with a Modular Multilevel Converter for Voltage Boosting
Khera, Fatma A.; Wheeler, Pat W.; Klumpner, Christian
Authors
PATRICK WHEELER pat.wheeler@nottingham.ac.uk
Professor of Power Electronic Systems
Dr CHRISTIAN KLUMPNER CHRISTIAN.KLUMPNER@NOTTINGHAM.AC.UK
Associate Professor
Abstract
This paper proposes the integration of a Z-source network with the modular multilevel converter (MMC) to add voltage boosting capability to a voltage step down converter. To limit the increase in complexity, the proposed Z-source modular multilevel converter uses a single Z-source network that is interconnected between the corresponding terminals of the DC-input source and the DC-link terminals of the MMC. The authors previously presented a modulation technique for quasi Z-source MMC (qZS-MMC) referred to as the reduced inserted cells (RICs) PWM but a large size inductor for the two quasi Z-source networks were needed. This paper shows that utilising the RICs scheme with the-source MMC is more advantageous compared with the qZS-MMC. The operation principle of the Z-source MMC using RICs scheme and the derivation of key design parameters is presented in this paper by analysing the relevant current and voltage waveforms. The simulation results verify the operation and showcase the excellent waveform performance of the proposed topology.
Citation
Khera, F. A., Wheeler, P. W., & Klumpner, C. (2019). Integrating a Single Z-Source Network with a Modular Multilevel Converter for Voltage Boosting
Conference Name | 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC 2019) |
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Start Date | Dec 1, 2019 |
End Date | Dec 4, 2019 |
Acceptance Date | Aug 1, 2019 |
Online Publication Date | Dec 4, 2019 |
Publication Date | Dec 4, 2019 |
Deposit Date | Feb 6, 2020 |
Publicly Available Date | Mar 28, 2024 |
Keywords | Z-source modular multilevel converter; quasi Z- source MMC; reduced inserted cells |
Public URL | https://nottingham-repository.worktribe.com/output/3908884 |
Related Public URLs | https://r9.ieee.org/event/5th-ieee-southern-power-electronics-conference/ https://www.aconf.org/conf_161358 |
Additional Information | © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, 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 component of this work in other works. |
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