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This paper focuses on the estimation of series
resistance changes for flat silicone PV panels or arrays during
operation, without moving the operating point far away from
the Maximum Power Point1. The method is based on the
measurement of the slope of the IV curve at a current level that
differs from the short-circuit current with a fixed value,
regardless of irradiance conditions. The method causes less
power loss and power ripple due to measurements and it is easily
integrated in a hill-climbing MPPT algorithm.
CitationSera, D. [et al.]. A low-disturbance diagnostic function integrated in the PV arrays' MPPT algorithm. A: IEEE International Conference on Industrial Electronics. "IECON 2011 - IEEE Industrial Electronics Conference". Melbourne: IEEE, 2011, p. 2456-2460.
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