Optimised phase disposition pulse-width modulation strategy for hybrid-clamped multilevel inverters using switching state sequences

Mingyao Ma, Xiangning He, Wenping Cao, Xueguan Song, Bing Ji

Research output: Contribution to journalArticle

Abstract

This study describes an optimised modulation strategy based on switching state sequences for the hybrid-clamped multilevel converter. Two key control variables defined as 'phase shift angle' and 'switching state change' for a five-level hybrid-clamped inverter are proposed to improve all switches' operation, and by changing their values, different control methods can be obtained for modulation optimisation purposes. Two example methods can solve the voltage imbalance problem of the dc-link capacitors and furthermore avoid two switches' simultaneous switching transitions and improve the inverter's performance as compared with the traditional phase disposition pulse-width modulation strategy. A 6 kW prototype inverter is developed and a range of simulation and experiments are carried out for validation. It is found that simulation and experimental results are in a good agreement and the proposed modulation strategy is verified in terms of low-order harmonic reduction.
Original languageEnglish
Pages (from-to)1095-1103
Number of pages9
JournalIET Power Electronics
Volume8
Issue number7
Early online date6 May 2015
DOIs
Publication statusPublished - 31 Jul 2015

Fingerprint

Pulse width modulation
Modulation
Switches
Phase shift
Capacitors
Electric potential
Experiments

Bibliographical note

© 2015 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.

Cite this

@article{16c22f925ad14d288c44613254089fcf,
title = "Optimised phase disposition pulse-width modulation strategy for hybrid-clamped multilevel inverters using switching state sequences",
abstract = "This study describes an optimised modulation strategy based on switching state sequences for the hybrid-clamped multilevel converter. Two key control variables defined as 'phase shift angle' and 'switching state change' for a five-level hybrid-clamped inverter are proposed to improve all switches' operation, and by changing their values, different control methods can be obtained for modulation optimisation purposes. Two example methods can solve the voltage imbalance problem of the dc-link capacitors and furthermore avoid two switches' simultaneous switching transitions and improve the inverter's performance as compared with the traditional phase disposition pulse-width modulation strategy. A 6 kW prototype inverter is developed and a range of simulation and experiments are carried out for validation. It is found that simulation and experimental results are in a good agreement and the proposed modulation strategy is verified in terms of low-order harmonic reduction.",
author = "Mingyao Ma and Xiangning He and Wenping Cao and Xueguan Song and Bing Ji",
note = "{\circledC} 2015 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.",
year = "2015",
month = "7",
day = "31",
doi = "10.1049/iet-pel.2014.0748",
language = "English",
volume = "8",
pages = "1095--1103",
journal = "IET Power Electronics",
issn = "1755-4535",
publisher = "IET",
number = "7",

}

Optimised phase disposition pulse-width modulation strategy for hybrid-clamped multilevel inverters using switching state sequences. / Ma, Mingyao; He, Xiangning; Cao, Wenping; Song, Xueguan; Ji, Bing.

In: IET Power Electronics, Vol. 8, No. 7, 31.07.2015, p. 1095-1103.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Optimised phase disposition pulse-width modulation strategy for hybrid-clamped multilevel inverters using switching state sequences

AU - Ma, Mingyao

AU - He, Xiangning

AU - Cao, Wenping

AU - Song, Xueguan

AU - Ji, Bing

N1 - © 2015 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.

PY - 2015/7/31

Y1 - 2015/7/31

N2 - This study describes an optimised modulation strategy based on switching state sequences for the hybrid-clamped multilevel converter. Two key control variables defined as 'phase shift angle' and 'switching state change' for a five-level hybrid-clamped inverter are proposed to improve all switches' operation, and by changing their values, different control methods can be obtained for modulation optimisation purposes. Two example methods can solve the voltage imbalance problem of the dc-link capacitors and furthermore avoid two switches' simultaneous switching transitions and improve the inverter's performance as compared with the traditional phase disposition pulse-width modulation strategy. A 6 kW prototype inverter is developed and a range of simulation and experiments are carried out for validation. It is found that simulation and experimental results are in a good agreement and the proposed modulation strategy is verified in terms of low-order harmonic reduction.

AB - This study describes an optimised modulation strategy based on switching state sequences for the hybrid-clamped multilevel converter. Two key control variables defined as 'phase shift angle' and 'switching state change' for a five-level hybrid-clamped inverter are proposed to improve all switches' operation, and by changing their values, different control methods can be obtained for modulation optimisation purposes. Two example methods can solve the voltage imbalance problem of the dc-link capacitors and furthermore avoid two switches' simultaneous switching transitions and improve the inverter's performance as compared with the traditional phase disposition pulse-width modulation strategy. A 6 kW prototype inverter is developed and a range of simulation and experiments are carried out for validation. It is found that simulation and experimental results are in a good agreement and the proposed modulation strategy is verified in terms of low-order harmonic reduction.

U2 - 10.1049/iet-pel.2014.0748

DO - 10.1049/iet-pel.2014.0748

M3 - Article

VL - 8

SP - 1095

EP - 1103

JO - IET Power Electronics

JF - IET Power Electronics

SN - 1755-4535

IS - 7

ER -