Novel improved three-level Z-source inverter

Saravanan, V.; Ramanujam, R.; Arumugam, M.

doi:10.7158/e14-026.2015.12.2

Cited by 5 publications

(2 citation statements)

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“…DVR is the key component used to compensate long duration voltage events such as voltage sags and voltage swells [12][13][14][15]. Generally, the DVRs consists of voltage source inverter based DVR (VSI-DVR), current source inverter based DVR (CSI-DVR) [16] and impedance source inverter based DVR (ZSI-DVR) [17][18][19][20][21]. The limitation of VSI-DVR is their buck (step-down) type output voltage characteristics thereby the maximum output voltage is limited by DC link voltage.…”

Section: Introductionmentioning

confidence: 99%

“…That is, the ZSI is a buck-boost inverter that has a wide range of obtainable voltage. Unlike a VSI and CSI, the shoot-through state is not harmful and actually has been utilized in ZSI [17][18][19][20][21].In this paper, three different inverter configurations based on DVR such as VSI-DVR, CSI-DVR, and ZSI-DVR are discussed and compared. The VSI-DVR, CSI-DVR and ZSI-DVR is simulated using MATLAB\SIMULINK platform for mitigation of commonly occur voltage events such as voltage sags and voltage swells under nonlinear load condition.…”

Section: Introductionmentioning

confidence: 99%

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Performance Evaluation of Three Different Inverter Configurations of DVR for Mitigation of Voltage Events

Prasad

Akella

2016

IJEEI

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The voltage events namely voltage sags and voltage swells represent the most common, frequent and important power quality events in today's power system. Dynamic voltage restorer (DVR) is one of the key components used to mitigate the supply voltage quality disturbances in terms of voltage sags and swells in the distribution system. It consists of an energy storage unit, a voltage source inverter, a filter, a coupling transformer and the control system. This paper presents three different inverter configurations of dynamic voltage restorer (DVR) for mitigation of voltage events such as voltage sags and swells with sudden addition or removal of the nonlinear load. These three configurations are voltage source inverter based DVR (VSI-DVR), current source inverter based DVR (CSI-DVR) and impedance or Z-source inverter based DVR (ZSI-DVR). The d-q control technique is used to control the operation of the DVR. The response of ZSI-DVR for mitigation of voltage sags and swells are investigated and compared with VSI-DVR and CSI-DVR using MATLAB/SIMULINK environment.

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