System reliability evaluation considering parameter variations of a single-phase inverter with integrated active power decoupling
| Autor: | Erjie Qi, Dingjun Zeng, Jing Zhang, Haoran Wang, Kan Zhong, Mingxuan Qi, Guorong Zhu |
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| Rok vydání: | 2017 |
| Předmět: |
Electrolytic capacitor
Computer science 020208 electrical & electronic engineering 05 social sciences Active power decoupling 02 engineering and technology Insulated-gate bipolar transistor Decoupling capacitor Capacitance Active devices law.invention Capacitor System reliability Reliability (semiconductor) Control theory law Single-phase system 0202 electrical engineering electronic engineering information engineering Inverter Weibull distribution 0501 psychology and cognitive sciences lifetime estimation 050107 human factors Electronic circuit |
| Zdroj: | IECON Qi, E, Qi, M, Zeng, D, Wang, H, Zhu, G, Zhang, J & Zhong, K 2017, System reliability evaluation considering parameter variations of a single-phase inverter with integrated active power decoupling . in Proceedings IECON 2017-43rd Annual Conference of the IEEE Industrial Electronics Society . vol. 2017-January, IEEE, pp. 7974-7979, 43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017, Beijing, China, 29/10/2017 . https://doi.org/10.1109/IECON.2017.8217398 |
| DOI: | 10.1109/iecon.2017.8217398 |
| Popis: | Electrolytic Capacitor (E-cap) is one of the lifetime bottlenecks in power electronic converters. In the last two decades, various active power decoupling circuits have been proposed to improve the reliability of the DC link by eliminating the DC-link E-caps. However, additional active devices could change the stresses of the existing converters, whether the system reliability is improving or not is still an open question. This paper investigates the reliability of the single-phase H-bridge inverter with active power decoupling circuit. The parameter variations in IGBT lifetime model are considered. The Weibull distribution of the key components is obtained from Monte Carlo analysis, and the reliability of the whole system is estimated by the system Reliability Block Diagram (RBD) method. As a case study, 2 kW single-phase H-bridge inverter with passive E-caps and active power decoupling circuits are presented. It is shown that the active power decoupling method is applied to H bridge inverter, and the lifetime of decoupling capacitor can be improved significantly, but it has different effects on system reliability in different applications. In addition, the difference on system reliability of fixed parameter and parameter variations is shown in conclusions. |
| Databáze: | OpenAIRE |
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