Comparison of Efficiency and Failure Rate of SEPIC, Cuk and Zeta Converter for Application to Stand Alone PV System

Rao, Ms Bharathi; Pius, Pinto; Shet, M Satyendra Kumar

doi:10.1109/c2i454156.2021.9689428

Cited by 3 publications

(2 citation statements)

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“…To compute the MTBF, failure rate equations and stress factors assumed for individual components are referred from MILHDBK [23] as in Table 1. To obtain the stress factor due to temperature, for the MOSFET,…”

Section: Methodsmentioning

confidence: 99%

“…where, 𝑇𝑎 is ambient temperature: 30⁰C; 𝜃𝑗𝑎 is ambient and junction thermal resistance of the device: 1⁰C/w; 𝜃𝑗𝑐 is junction and case thermal resistance: 0.95 (for switch): 1.6 (for diode), (from data sheets); 𝑃𝑙𝑜𝑠𝑠 is power loss of semiconductor device. Data sheet specifications of IRFP150N MOSFET is considered for computation of power loss [23]- [25].…”

Section: Methodsmentioning

confidence: 99%

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Reliability analysis of single phase quazi Z source inverter for standalone photovoltaic system

Rao¹,

Kumar²

2022

Bulletin EEI

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Quazi Z source inverter has an advantage that it can boost or buck voltage to be given to an inverter. Operation of a QZSI is similar to a Z source inverter (ZSI). A conventional photovoltaic application uses a two-stage topology of boost converter and an inverter. A QZSI can be replaced for a two-stage topology to serve the purpose. A 3 KW single phase QZSI is designed and simulated for a standalone photovoltaic system in this paper. The results for total harmonic distortion (THD) of output voltage and mean time between failure (MTBF) of the overall system is compared with a conventional ZSI and two-stage topology for the same rating. MTBF of the overall system is computed using reliability block diagram method. Reliability curve is also plotted for all the three considered topologies.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%