Virtual flux oriented sensorless direct power control of qzs inverter connected to grid for solar pv applications

Mohammad Meraj, Syed Rahman, Atif Iqbal, Lazhar Ben-Brahim, Rashid Alammari, Haitham Abu-Rub

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

Abstract

Impedance source inverters (Z-source and Quazi-Z-source (QZS)) are the promising converter topologies in the future generation because of the buck, boost and buck-boost modes of operation. In this paper, three phase voltage sensorless grid connected QZS inverter is proposed to inject Maximum Direct Power. The new system uses the Virtual Flux Oriented Control (VFOC) algorithm for current control and virtual Flux (VF) estimation method for grid voltage. The complete Virtual Flux direct Power control (VFOC-DPC) exemplify the performance and operation of the proposed system compared to the conventional DPC algorithm is presented. Proposed strategy is also investigated under predistorted and unbalance grid conditions. VFOC-DPC provides numerous benefits mainly providing balanced sinusoidal line currents when the supply voltage is unbalanced. Simulation results are presented under unbalanced and pre-existing harmonic content in the grid voltage to verify the VF estimation of grid voltage. Tracking of active- reactive power is accurately done with current control loops providing good steady state and transient response to step change in reference.

Original languageEnglish
Title of host publicationProceedings - 2019 IEEE International Conference on Industrial Technology, ICIT 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1417-1422
Number of pages6
ISBN (Electronic)9781538663769
DOIs
Publication statusPublished - 1 Feb 2019
Event2019 IEEE International Conference on Industrial Technology, ICIT 2019 - Melbourne, Australia
Duration: 13 Feb 201915 Feb 2019

Publication series

NameProceedings of the IEEE International Conference on Industrial Technology
Volume2019-February

Conference

Conference2019 IEEE International Conference on Industrial Technology, ICIT 2019
CountryAustralia
CityMelbourne
Period13/2/1915/2/19

Fingerprint

Power control
Fluxes
Electric potential
Electric current control
Reactive power
Transient analysis
Topology

Keywords

  • Active current
  • Direct Power Control
  • Feed forward compensation
  • Quasi Impedance Source Inverters
  • Reactive current
  • Sensorless
  • Shoot through duty
  • Solar PV Inverters
  • Virtual flux Oriented Control

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering

Cite this

Meraj, M., Rahman, S., Iqbal, A., Ben-Brahim, L., Alammari, R., & Abu-Rub, H. (2019). Virtual flux oriented sensorless direct power control of qzs inverter connected to grid for solar pv applications. In Proceedings - 2019 IEEE International Conference on Industrial Technology, ICIT 2019 (pp. 1417-1422). [8755055] (Proceedings of the IEEE International Conference on Industrial Technology; Vol. 2019-February). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICIT.2019.8755055

Virtual flux oriented sensorless direct power control of qzs inverter connected to grid for solar pv applications. / Meraj, Mohammad; Rahman, Syed; Iqbal, Atif; Ben-Brahim, Lazhar; Alammari, Rashid; Abu-Rub, Haitham.

Proceedings - 2019 IEEE International Conference on Industrial Technology, ICIT 2019. Institute of Electrical and Electronics Engineers Inc., 2019. p. 1417-1422 8755055 (Proceedings of the IEEE International Conference on Industrial Technology; Vol. 2019-February).

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

Meraj, M, Rahman, S, Iqbal, A, Ben-Brahim, L, Alammari, R & Abu-Rub, H 2019, Virtual flux oriented sensorless direct power control of qzs inverter connected to grid for solar pv applications. in Proceedings - 2019 IEEE International Conference on Industrial Technology, ICIT 2019., 8755055, Proceedings of the IEEE International Conference on Industrial Technology, vol. 2019-February, Institute of Electrical and Electronics Engineers Inc., pp. 1417-1422, 2019 IEEE International Conference on Industrial Technology, ICIT 2019, Melbourne, Australia, 13/2/19. https://doi.org/10.1109/ICIT.2019.8755055
Meraj M, Rahman S, Iqbal A, Ben-Brahim L, Alammari R, Abu-Rub H. Virtual flux oriented sensorless direct power control of qzs inverter connected to grid for solar pv applications. In Proceedings - 2019 IEEE International Conference on Industrial Technology, ICIT 2019. Institute of Electrical and Electronics Engineers Inc. 2019. p. 1417-1422. 8755055. (Proceedings of the IEEE International Conference on Industrial Technology). https://doi.org/10.1109/ICIT.2019.8755055
Meraj, Mohammad ; Rahman, Syed ; Iqbal, Atif ; Ben-Brahim, Lazhar ; Alammari, Rashid ; Abu-Rub, Haitham. / Virtual flux oriented sensorless direct power control of qzs inverter connected to grid for solar pv applications. Proceedings - 2019 IEEE International Conference on Industrial Technology, ICIT 2019. Institute of Electrical and Electronics Engineers Inc., 2019. pp. 1417-1422 (Proceedings of the IEEE International Conference on Industrial Technology).
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