An active filter method to eliminate dc-side low-frequency power for single-phase quasi-Z source inverter

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Citations (Scopus)

Abstract

Second harmonic pulsating power flows through the dc side of the single-phase quasi-Z-source inverter (qZSI). This requires bulky capacitor banks and inductors to suppress the second harmonic ripple of dc-link voltage and inductor currents. However, the resultant qZS network seriously deteriorates the system reliability, efficiency, volume, weight, and cost. This paper proposes an active filter integrated single-phase qZSI topology to transfer the low-frequency (second harmonic) power ripple directly from the ac load to the active filter ac capacitor. Thus low-frequency power ripple will not be present at the dc side, and constant inductor current and constant capacitor voltage are ensured. The qZS impedance is small because only high frequency switching ripple is present and the active filter supports ac voltage (large ripple) enabling small values of capacitance - both of these characteristics result in low size and low weight. This paper investigates the analysis, modeling, parameter design method of qZS network and active filter, as well as control strategy of the proposed topology. Comparative evaluation and experimental results verify the proposed new topology system.

Original languageEnglish
Title of host publicationAPEC 2015 - 30th Annual IEEE Applied Power Electronics Conference and Exposition
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages827-832
Number of pages6
Volume2015-May
EditionMay
DOIs
Publication statusPublished - 8 May 2015
Event30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015 - Charlotte, United States
Duration: 15 Mar 201519 Mar 2015

Other

Other30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015
CountryUnited States
CityCharlotte
Period15/3/1519/3/15

Fingerprint

Active filters
Capacitors
Topology
Electric potential
Switching frequency
Capacitance
Costs

Keywords

  • Active filter
  • Quasi-Z source inverter
  • Second harmonic pulsating power
  • Single-phase system

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Ge, B., Abu-Rub, H., Liu, Y., & Balog, R. (2015). An active filter method to eliminate dc-side low-frequency power for single-phase quasi-Z source inverter. In APEC 2015 - 30th Annual IEEE Applied Power Electronics Conference and Exposition (May ed., Vol. 2015-May, pp. 827-832). [7104445] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APEC.2015.7104445

An active filter method to eliminate dc-side low-frequency power for single-phase quasi-Z source inverter. / Ge, Baoming; Abu-Rub, Haitham; Liu, Yushan; Balog, Robert.

APEC 2015 - 30th Annual IEEE Applied Power Electronics Conference and Exposition. Vol. 2015-May May. ed. Institute of Electrical and Electronics Engineers Inc., 2015. p. 827-832 7104445.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ge, B, Abu-Rub, H, Liu, Y & Balog, R 2015, An active filter method to eliminate dc-side low-frequency power for single-phase quasi-Z source inverter. in APEC 2015 - 30th Annual IEEE Applied Power Electronics Conference and Exposition. May edn, vol. 2015-May, 7104445, Institute of Electrical and Electronics Engineers Inc., pp. 827-832, 30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015, Charlotte, United States, 15/3/15. https://doi.org/10.1109/APEC.2015.7104445
Ge B, Abu-Rub H, Liu Y, Balog R. An active filter method to eliminate dc-side low-frequency power for single-phase quasi-Z source inverter. In APEC 2015 - 30th Annual IEEE Applied Power Electronics Conference and Exposition. May ed. Vol. 2015-May. Institute of Electrical and Electronics Engineers Inc. 2015. p. 827-832. 7104445 https://doi.org/10.1109/APEC.2015.7104445
Ge, Baoming ; Abu-Rub, Haitham ; Liu, Yushan ; Balog, Robert. / An active filter method to eliminate dc-side low-frequency power for single-phase quasi-Z source inverter. APEC 2015 - 30th Annual IEEE Applied Power Electronics Conference and Exposition. Vol. 2015-May May. ed. Institute of Electrical and Electronics Engineers Inc., 2015. pp. 827-832
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abstract = "Second harmonic pulsating power flows through the dc side of the single-phase quasi-Z-source inverter (qZSI). This requires bulky capacitor banks and inductors to suppress the second harmonic ripple of dc-link voltage and inductor currents. However, the resultant qZS network seriously deteriorates the system reliability, efficiency, volume, weight, and cost. This paper proposes an active filter integrated single-phase qZSI topology to transfer the low-frequency (second harmonic) power ripple directly from the ac load to the active filter ac capacitor. Thus low-frequency power ripple will not be present at the dc side, and constant inductor current and constant capacitor voltage are ensured. The qZS impedance is small because only high frequency switching ripple is present and the active filter supports ac voltage (large ripple) enabling small values of capacitance - both of these characteristics result in low size and low weight. This paper investigates the analysis, modeling, parameter design method of qZS network and active filter, as well as control strategy of the proposed topology. Comparative evaluation and experimental results verify the proposed new topology system.",
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AB - Second harmonic pulsating power flows through the dc side of the single-phase quasi-Z-source inverter (qZSI). This requires bulky capacitor banks and inductors to suppress the second harmonic ripple of dc-link voltage and inductor currents. However, the resultant qZS network seriously deteriorates the system reliability, efficiency, volume, weight, and cost. This paper proposes an active filter integrated single-phase qZSI topology to transfer the low-frequency (second harmonic) power ripple directly from the ac load to the active filter ac capacitor. Thus low-frequency power ripple will not be present at the dc side, and constant inductor current and constant capacitor voltage are ensured. The qZS impedance is small because only high frequency switching ripple is present and the active filter supports ac voltage (large ripple) enabling small values of capacitance - both of these characteristics result in low size and low weight. This paper investigates the analysis, modeling, parameter design method of qZS network and active filter, as well as control strategy of the proposed topology. Comparative evaluation and experimental results verify the proposed new topology system.

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