PV Powered Switched-Inductor Embedded DC-link Impedance-source Inverter System
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2015-06-19T05:16:51Z
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Abstract
Background: The traditional embedded impedance-source inverter topology exhibits the disadvantages of low boost factor and higher cost due to additional PV sources. Objective: This research paper deals with the performance improvisation of embedded impedance-source inverter topology called Switched-Inductor DC-link Embedded Zsource Inverter (SL-DC-link EZSI). Switched inductor concept is employed to the reduced source DC-link EZSI to achieve the strong boosting ability in terms of short shoot-through period. Results: Simulation of PV powered SL-DC-EZSI fed induction motor drive is performed. The operating principle and the topological analysis are given. Boost factor performance, capacitor voltage and DC-link voltages as a function of shoot-through ratio of the SL-EZSI system is compared with the proposed SL-DClink
EZSI system and the results are presented. Conclusion: PV powered Switched inductor DC-link EZSI topology is proposed and the results are presented. The propounded topology has the characteristics of high boost ratio, minimum shoot through period, reduced voltage stress and low cost.
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Switched Inductor(SL), SL-DC-link Embedded Z-source Inverter (SL-DClink EZSI), SL-Embedded Z-source Inverter (SL-EZSI), SL-Z-source Inverter(ZSI), PV Powered Switched-Inductor Embedded DC-link Impedance-source Inverter System, Australian Journal of Basic and Applied Sciences, Nisha