Comparison between Different Control Strategies of a Z-Source Inverter Based Dynamic Voltage Restorer

In this paper, dynamic voltage restorer (DVR) compensation methods are compared to each other for the load side connected shunt converter topology of z-source inverter based DVR to choose the best method. Four different topologies are recognized for DVR that two of them have energy storage devices,...

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Bibliographic Details
Published in:Advances in electrical and electronic engineering 2013-06, Vol.11 (3), p.174-185
Main Authors: Kazemdehdashti, Abolfazl, Seifi, Ali Reza, Haghighi, Amin Shabanpoor
Format: Article
Language:English
Subjects:
close loop control
Compensation
compensation methods
Digital
dynamic voltage restorer
Electric potential
Inverters
Mathematical analysis
Matlab
Topology
z-source inverter
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Summary:In this paper, dynamic voltage restorer (DVR) compensation methods are compared to each other for the load side connected shunt converter topology of z-source inverter based DVR to choose the best method. Four different topologies are recognized for DVR that two of them have energy storage devices, and two topologies have no energy storage that take ener\-gy from the grid during the period of compensation. Here the load side connected shunt converter topology that takes necessary energy from the grid is used. Pre-sag compensation, in-phase compensation, energy-optimized methods are the three DVR compensation methods that studied and compared. A deep analysis through different diagrams would show the advantages or disadvantages of each compensation method. Equations for all methods are derived and the characteristics of algorithms are compared with each other. The simulation results done by SIMULINK/ MATLAB shows compensating by this topology based on the compensation methods.
ISSN:1336-1376
1804-3119
DOI:10.15598/aeee.v11i3.782