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RELIABILITY ESTIMATION FOR COMPONENTS OF PHOTOVOLTAIC SYSTEMS

机译：光伏系统组件的可靠性估计

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摘要

In this study, a reliability estimation method was used to predict the probability of success of various components of photovoltaic (PV) systems. Various methods of reliability improvement, to improve the probability of success of the PV system for the least annualised cost, are discussed. This paper mathematically estimates and analyses the reliability estimation of the battery voltage regulators (BVRs) that are generally used in PV systems. Therefore, this can be of vital help to a PV system designer for improving the reliability of the BVRs. The paper also describes different reliability engineering techniques for improving the probability of success of PV system components. In the case study, those BVRs whose probability of success is 18% in the laboratory condition, were actually found to have less than 1% probability of success if subjected to tropical field conditions for the expected life period of 10 yr. For the same BVR, the probability of success increases to 99% for the same period if proper reliability-related design considerations are incorporated.
机译：在这项研究中，使用可靠性估计方法来预测光伏（PV）系统各个组件成功的可能性。讨论了各种可靠性改进方法，以最低的年化成本提高光伏系统的成功率。本文通过数学方法估算并分析了光伏系统中常用的电池稳压器（BVR）的可靠性。因此，这对于提高BVR的可靠性对光伏系统设计人员而言至关重要。本文还介绍了用于提高光伏系统组件成功概率的各种可靠性工程技术。在案例研究中，那些在实验室条件下成功概率为18％的BVR实际上被发现，如果在10年的预期寿命内经受热带野外条件，则成功概率小于1％。对于相同的BVR，如果结合适当的可靠性相关设计考虑因素，则在同一时期成功的概率将增加到99％。

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