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- W2898861491 abstract "Recently, introducing grid-tied PV systems is recommended in many countries. The inverter lifetime in PV applications is affected by their operating conditions. That is affected by the thermal loading of the power devices and capacitors. Especially, the lifetime of electrolytic capacitors at the DC-link to compensate the power ripple decreases when the ambient temperature increases. To improve the lifetime, a micro-inverter with an active buffer at the DC-link is introduced in this paper. In this micro- inverter, the DC-link electrolytic capacitor is replaced with a ceramic capacitor that has small capacitance. However, the reliability performance of the entire micro-inverter has not been evaluated. This paper thus assesses the lifetime of the micro-inverter considering the operational conditions (i.e., ambient temperature and solar irradiance, also referred to as mission profiles). A comparison between the proposed circuit with an active buffer and the conventional circuit based on a boost chopper is performed in this paper. It is revealed that the lifetime of the micro-inverter is very long. This is due to the over-designed power devices." @default.
- W2898861491 created "2018-11-09" @default.
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- W2898861491 date "2018-05-01" @default.
- W2898861491 modified "2023-09-26" @default.
- W2898861491 title "The Lifetime Assessment of a Micro-Inverter for PV Applications" @default.
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- W2898861491 doi "https://doi.org/10.23919/ipec.2018.8507701" @default.
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