A Power Loss Model for a Solar String with Mixed Cell Types (具有混合电池类型的太阳能系统断电模型)

Wei Huang
Wei Huang received the M.S. degree in Reliability & Quality Engineering, and the Ph.D. degree in Systems & Industrial Engineering from the University of Arizona, USA, in 1998, and 2002, respectively; and the B.S., M.S., and Ph.D. degrees in Mechanical Engineering from Nanjing University of Science and Technology, P. R. China in 1982, 1985, and 1988, respectively. He has been a Senior Engi...read more



Details

Critical equipment in various industries depends on solar power systems to provide electrical power for remote, off grid operation. Failure of solar cells reduces power generated by a solar power system. This presentation concerns a solar string consisting of mixed type of cells in terms of failure probability values. A general description on how to determine a solar cell-level failure probability is provided, to account for competing failure modes. The correlation of a string’s power loss to the number of cell failures is discussed. Then, a more comprehensive power loss model is developed for a solar string with two different types of cells. An example of a hypothetical solar string with 60 cells is presented and the results are discussed.


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