Skip to main content

Research Repository

Advanced Search

Integrating a Single Z-Source Network with a Modular Multilevel Converter for Voltage Boosting

Khera, Fatma A.; Wheeler, Pat W.; Klumpner, Christian

Integrating a Single Z-Source Network with a Modular Multilevel Converter for Voltage Boosting Thumbnail


Authors

Fatma A. Khera

Profile Image

PATRICK WHEELER pat.wheeler@nottingham.ac.uk
Professor of Power Electronic Systems



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)
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.

Files




You might also like



Downloadable Citations