Analytic determination of conduction power losses in flying capacitor multicell power converter

Vahid Dargahi, Arash Khoshkbar-Sadigh, Keith Corzine

Research output: Contribution to conferencePaper

6 Citations (Scopus)

Abstract

Multilevel converters are mainly used in the medium-voltage high-power applications. Flying capacitor multicell (FCM) converter is one of the well-known categories of multilevel power converters. Since conduction power loss investigation can be very advantageous in the design step of multilevel converters, this paper presents an analytic approach in order to calculate and investigate the conduction power loss in FCM converters. First, the rms and average currents of the insulated gate bipolar transistors (IGBTs) and anti-parallel diodes are analytically calculated by considering the associated duty cycle of each IGBT and anti-parallel diode, power converter modulation index, load current, and load power factor. Numerical results of the obtained analytical equations to calculate the rms and average currents of the IGBTs/diodes are compared against the simulation results whereas matching well and confirming accuracy of the derived formula. Afterwards, the obtained equations for the rms and average currents computation are used to calculate conduction power losses in a 12.25MVA 3.3kV 9-level (line-to-line) FCM power converter. A 2.5kV 1.5kA IGBT module from ABB is considered as power switches for FCM converter in performed case study.

Original languageEnglish (US)
Pages2358-2364
Number of pages7
DOIs
StatePublished - May 8 2015
Event30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015 - Charlotte, United States
Duration: Mar 15 2015Mar 19 2015

Conference

Conference30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015
CountryUnited States
CityCharlotte
Period3/15/153/19/15

Fingerprint

Insulated gate bipolar transistors (IGBT)
Power converters
Capacitors
Diodes
Switches
Modulation
Electric potential

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Dargahi, V., Khoshkbar-Sadigh, A., & Corzine, K. (2015). Analytic determination of conduction power losses in flying capacitor multicell power converter. 2358-2364. Paper presented at 30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015, Charlotte, United States. https://doi.org/10.1109/APEC.2015.7104678
Dargahi, Vahid ; Khoshkbar-Sadigh, Arash ; Corzine, Keith. / Analytic determination of conduction power losses in flying capacitor multicell power converter. Paper presented at 30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015, Charlotte, United States.7 p.
@conference{d5849fe6cf8c4f1597d35f71fbbb923c,
title = "Analytic determination of conduction power losses in flying capacitor multicell power converter",
abstract = "Multilevel converters are mainly used in the medium-voltage high-power applications. Flying capacitor multicell (FCM) converter is one of the well-known categories of multilevel power converters. Since conduction power loss investigation can be very advantageous in the design step of multilevel converters, this paper presents an analytic approach in order to calculate and investigate the conduction power loss in FCM converters. First, the rms and average currents of the insulated gate bipolar transistors (IGBTs) and anti-parallel diodes are analytically calculated by considering the associated duty cycle of each IGBT and anti-parallel diode, power converter modulation index, load current, and load power factor. Numerical results of the obtained analytical equations to calculate the rms and average currents of the IGBTs/diodes are compared against the simulation results whereas matching well and confirming accuracy of the derived formula. Afterwards, the obtained equations for the rms and average currents computation are used to calculate conduction power losses in a 12.25MVA 3.3kV 9-level (line-to-line) FCM power converter. A 2.5kV 1.5kA IGBT module from ABB is considered as power switches for FCM converter in performed case study.",
author = "Vahid Dargahi and Arash Khoshkbar-Sadigh and Keith Corzine",
year = "2015",
month = "5",
day = "8",
doi = "10.1109/APEC.2015.7104678",
language = "English (US)",
pages = "2358--2364",
note = "30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015 ; Conference date: 15-03-2015 Through 19-03-2015",

}

Dargahi, V, Khoshkbar-Sadigh, A & Corzine, K 2015, 'Analytic determination of conduction power losses in flying capacitor multicell power converter' Paper presented at 30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015, Charlotte, United States, 3/15/15 - 3/19/15, pp. 2358-2364. https://doi.org/10.1109/APEC.2015.7104678

Analytic determination of conduction power losses in flying capacitor multicell power converter. / Dargahi, Vahid; Khoshkbar-Sadigh, Arash; Corzine, Keith.

2015. 2358-2364 Paper presented at 30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015, Charlotte, United States.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Analytic determination of conduction power losses in flying capacitor multicell power converter

AU - Dargahi, Vahid

AU - Khoshkbar-Sadigh, Arash

AU - Corzine, Keith

PY - 2015/5/8

Y1 - 2015/5/8

N2 - Multilevel converters are mainly used in the medium-voltage high-power applications. Flying capacitor multicell (FCM) converter is one of the well-known categories of multilevel power converters. Since conduction power loss investigation can be very advantageous in the design step of multilevel converters, this paper presents an analytic approach in order to calculate and investigate the conduction power loss in FCM converters. First, the rms and average currents of the insulated gate bipolar transistors (IGBTs) and anti-parallel diodes are analytically calculated by considering the associated duty cycle of each IGBT and anti-parallel diode, power converter modulation index, load current, and load power factor. Numerical results of the obtained analytical equations to calculate the rms and average currents of the IGBTs/diodes are compared against the simulation results whereas matching well and confirming accuracy of the derived formula. Afterwards, the obtained equations for the rms and average currents computation are used to calculate conduction power losses in a 12.25MVA 3.3kV 9-level (line-to-line) FCM power converter. A 2.5kV 1.5kA IGBT module from ABB is considered as power switches for FCM converter in performed case study.

AB - Multilevel converters are mainly used in the medium-voltage high-power applications. Flying capacitor multicell (FCM) converter is one of the well-known categories of multilevel power converters. Since conduction power loss investigation can be very advantageous in the design step of multilevel converters, this paper presents an analytic approach in order to calculate and investigate the conduction power loss in FCM converters. First, the rms and average currents of the insulated gate bipolar transistors (IGBTs) and anti-parallel diodes are analytically calculated by considering the associated duty cycle of each IGBT and anti-parallel diode, power converter modulation index, load current, and load power factor. Numerical results of the obtained analytical equations to calculate the rms and average currents of the IGBTs/diodes are compared against the simulation results whereas matching well and confirming accuracy of the derived formula. Afterwards, the obtained equations for the rms and average currents computation are used to calculate conduction power losses in a 12.25MVA 3.3kV 9-level (line-to-line) FCM power converter. A 2.5kV 1.5kA IGBT module from ABB is considered as power switches for FCM converter in performed case study.

UR - http://www.scopus.com/inward/record.url?scp=84937910630&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84937910630&partnerID=8YFLogxK

U2 - 10.1109/APEC.2015.7104678

DO - 10.1109/APEC.2015.7104678

M3 - Paper

AN - SCOPUS:84937910630

SP - 2358

EP - 2364

ER -

Dargahi V, Khoshkbar-Sadigh A, Corzine K. Analytic determination of conduction power losses in flying capacitor multicell power converter. 2015. Paper presented at 30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015, Charlotte, United States. https://doi.org/10.1109/APEC.2015.7104678