Circuit for clamping bridge over-voltages in a voltage-fed quasi Z-source converter

J. Kitson, N. McNeill

Research output: Contribution to journal › Article

3 Citations (Scopus)

Abstract

Unlike the voltage source converter, the Z-source converter can boost as well as buck the input voltage. However, the presence of physically large components in the impedance network introduces large parasitic inductances into power device commutation paths. This leads to consequent overvoltages at power device turn-off. A simple circuit for addressing this is presented. Practical results are given for a voltage-fed quasi- Z-source inverter with discontinuous input current.
LanguageEnglish
Pages551-553
Number of pages3
JournalElectronics Letters
Volume52
Issue number7
Early online date3 Mar 2016
DOIs
Publication statusPublished - 1 Apr 2016

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Networks (circuits)
Electric potential
Electric commutation
Inductance

Keywords

  • power convertors
  • bridge circuits
  • impedance network
  • bridge overload clamping
  • discontinuous input current

Cite this

Kitson, J. ; McNeill, N. / Circuit for clamping bridge over-voltages in a voltage-fed quasi Z-source converter. In: Electronics Letters. 2016 ; Vol. 52, No. 7. pp. 551-553.
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Kitson, J & McNeill, N 2016, 'Circuit for clamping bridge over-voltages in a voltage-fed quasi Z-source converter' Electronics Letters, vol. 52, no. 7, pp. 551-553. https://doi.org/10.1049/el.2015.4164

Circuit for clamping bridge over-voltages in a voltage-fed quasi Z-source converter. / Kitson, J.; McNeill, N.

In: Electronics Letters, Vol. 52, No. 7, 01.04.2016, p. 551-553.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Circuit for clamping bridge over-voltages in a voltage-fed quasi Z-source converter

AU - Kitson, J.

AU - McNeill, N.

PY - 2016/4/1

Y1 - 2016/4/1

N2 - Unlike the voltage source converter, the Z-source converter can boost as well as buck the input voltage. However, the presence of physically large components in the impedance network introduces large parasitic inductances into power device commutation paths. This leads to consequent overvoltages at power device turn-off. A simple circuit for addressing this is presented. Practical results are given for a voltage-fed quasi- Z-source inverter with discontinuous input current.

AB - Unlike the voltage source converter, the Z-source converter can boost as well as buck the input voltage. However, the presence of physically large components in the impedance network introduces large parasitic inductances into power device commutation paths. This leads to consequent overvoltages at power device turn-off. A simple circuit for addressing this is presented. Practical results are given for a voltage-fed quasi- Z-source inverter with discontinuous input current.

KW - power convertors

KW - bridge circuits

KW - impedance network

KW - bridge overload clamping

KW - discontinuous input current

U2 - 10.1049/el.2015.4164

DO - 10.1049/el.2015.4164

M3 - Article

VL - 52

SP - 551

EP - 553

JO - Electronics Letters

T2 - Electronics Letters

JF - Electronics Letters

SN - 0013-5194

IS - 7

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Kitson J, McNeill N. Circuit for clamping bridge over-voltages in a voltage-fed quasi Z-source converter. Electronics Letters. 2016 Apr 1;52(7):551-553. https://doi.org/10.1049/el.2015.4164

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