An Optimal Method to Design a Trap-CL Filter for a PV AC-Module based on Flyback Inverter

Noh, Yign; Choi, Bong-Yeon; Lee, Soon-Ryung; Eom, Ju-Kyoung; Won, Chung-Yuen

doi:10.1109/tia.2015.2501763

Cited by 4 publications

(2 citation statements)

References 21 publications

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“…For the L filter design, the inductor L f is considered a series inductance with a parasitic resistance. The L filter represents a first-order low-pass filter with a cutoff frequency of ω L = R/L [19].…”

Section: Power Stage and Designmentioning

confidence: 99%

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L vs. LCL Filter for Photovoltaic Grid-Connected Inverter: A Reliability Study

Martínez

Vázquez

Vaquero

et al. 2020

International Journal of Photoenergy

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The increasing use of photovoltaic systems entails the use of new technologies to improve the efficiency and power quality of the grid. System performance is constantly increasing, but its reliability decreases due to factors such as the uncontrolled operation, the quality of the design and quantity of components, and the use of nonlinear loads that may lead to distortion in the signal, which directly affects the life of the system globally. This article presents an analysis of the reliability of a single-phase full-bridge inverter for active power injection into the grid, which considers the inverter stage with its coupling stage. A comparison between an L filter and an LCL filter, which comprise the coupling stage, is made. Reliability prediction is based on metrics, failure rate, mean time between failures, and total harmonic distortion. The analysis and numerical simulation are performed. Finally, filter considerations are suggested to extend the reliability of the inverter in a photovoltaic system.

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Section: Power Stage and Designmentioning

confidence: 99%

“…where Δ iL f1 is the current ripple in the inductor and f sw is the switching frequency. To obtain L f2 , the next equation is used [8,19]:…”

mentioning

confidence: 99%