Single-Phase DVR with Semi-Z-Source Inverter for Power Distribution Network

A novel topology of single-phase dynamic voltage restorer (DVR) is proposed to compensate the load voltage during voltage sag and voltage swell events. The semi-Z-source converter is utilised in its inverter operating mode for this proposed topology. The reduction in the number of active switches in...

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Bibliographic Details
Published in:Arabian journal for science and engineering (2011) 2018-06, Vol.43 (6), p.3135-3149
Main Authors: Remya, V. K., Parthiban, P., Ansal, V., Nandakumar, Avinash
Format: Article
Language:English
Subjects:
Bridge loads
Converters
Digital video recorders
Electric power distribution
Engineering
Humanities and Social Sciences
multidisciplinary
Science
Switches
Technical Note - Electrical Engineering
Topology
Voltage regulators
Voltage sags
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Summary:A novel topology of single-phase dynamic voltage restorer (DVR) is proposed to compensate the load voltage during voltage sag and voltage swell events. The semi-Z-source converter is utilised in its inverter operating mode for this proposed topology. The reduction in the number of active switches in the inverter and also in the current conduction path without compromising the output voltage range is the merit of the semi-Z-source inverter-based DVR against the commonly used full-bridge inverter-based DVR. The load voltage contains harmonics within the permissible limits when the compensation is performed by the semi-Z-source inverter-based DVR. The need for the filter circuit is eliminated; hence, the magnitude difference and the phase shift in the inverter output voltage due to the filter circuit are not present in the semi-Z-source inverter-based DVR. The proposed topology is cheap compared to the full-bridge inverter-based DVR topology. The simulations performed in MATLAB/Simulink environment are presented to validate the performance of the proposed topology. A comparison between the semi-Z-source inverter-based DVR and full-bridge inverter-based DVR is presented in this paper. The novel topology of DVR using semi-Z-source inverter is proved to be a better solution to the full-bridge inverter-based DVR.
ISSN:2193-567X
1319-8025
2191-4281
DOI:10.1007/s13369-017-2841-3