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How often do AC capacitors need to be replaced?

Reliability (semiconductor)

Solar micro-inverter

Electrolytic capacitor

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Journal Article•DOI Advanced DC-Link Voltage Regulation and Capacitor Optimization for Three-Phase Microinverters Seyed Milad Tayebi, Haibing Hu, Issa Batarseh - Show less +2 more 03 Oct 2019-IEEE Transactions on Industrial Electronics 17 Citations	Therefore, the microinverter reliability can be significantly increased by replacing electrolytic capacitors with film capacitors.
Proceedings Article•DOI Accelerated capacitor degradation due to nonsinusoidal voltage supply and reliability of insulation systems Andrea Cavallini, I. Ghinello, G. Maszanti, G.C. Montanari - Show less +3 more 14 Oct 1998 7 Citations	The model enables failure rate, thus reliability, to be estimated for power capacitors.
Open access•Journal Article•DOI Towards A Model-based Prognostics Methodology for Electrolytic Capacitors: A Case Study Based on Electrical Overstress Accelerated Aging Jose R. Celaya, Chetan S. Kulkarni, Gautam Biswas, Kai Goebel - Show less +3 more 18 Oct 2020 1 Citations	This preliminary remaining life prediction algorithm serves as a demonstration of how prognostics methodologies could be used for electrolytic capacitors.
Journal Article•DOI Study on Self-Healing and Lifetime Characteristics of Metallized-Film Capacitor Under High Electric Field Yaohong Chen, Hua Li, Fuchang Lin, Fei Lv, Miao Zhang, Li Zhiyuan, De Liu - Show less +6 more 20 Jun 2012-IEEE Transactions on Plasma Science 41 Citations	In order to increase the reliability of the power source equipment, the lifetime of capacitors must be lengthened.
Journal Article•DOI Single-Phase Input Variable-Speed AC Motor System Based on an Electrolytic Capacitor-Less Single-Stage Boost Three-Phase Inverter Yufei Zhou, Wenxin Huang, Feng Hong - Show less +2 more 01 Oct 2016-IEEE Transactions on Power Electronics 32 Citations	By using electrolytic capacitors-less topology, the lifetime can be greatly increased.
Proceedings Article•DOI Distribution system efficiency improvement by reconfiguration and capacitor placement using a modified particle swarm optimization algorithm Pooya Rezaei, Mehdi Vakilian - Show less +1 more 01 Aug 2010 17 Citations	On the other hand, if capacitors are already available in a network, optimum capacitors setting and network reconfiguration should be performed for power loss minimization.

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