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Title: A comparative study of full-bridge inverter based DVR and SEMI-Z-source inverter based DVR
Authors: Remya, V.K.
Parthiban, P.
Nandakumar, A.
Issue Date: 2018
Citation: 2018 International Conference on Emerging Trends and Innovations In Engineering And Technological Research, ICETIETR 2018, 2018, Vol., , pp.-
Abstract: There is always a necessity to protect the voltage sensitive industrial systems from Power Quality (PQ) issues to prevent the loss of product quality and revenue. Generally, custom power devices take the responsibility to mitigate these PQ problems, restore the voltage and thus maintain the PQ standards. Dynamic Voltage Restorer (DVR) is one among the custom power devices which offers an economical compensation of load voltage under abnormal supply voltage conditions. The voltage injected in series by the DVR compensates the load profile during PQ events; appropriate voltage injected by the DVR in series with supply protects the load and restores the voltage to pre-defined values. The required injected voltage is generated by the inverter circuit in the DVR system. The most commonly used DVR inverter is the full-bridge inverter which consists of four switches. The Semi-Z-Source (SZS) inverter based DVR which offers same injection capability with only two-switches is compared with the full-bridge inverter. The in-phase compensation technique is employed in both the DVRs for injecting required voltage into the grid. The efficiency, quality of the injected voltage and load voltage are studied. This paper presents simulation results in MATLAB/Simulink environment to validate thecomparison. � 2018 IEEE.
Appears in Collections:2. Conference Papers

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