Fault Diagnosis of Photovoltaic Panels Using Dynamic Current–Voltage Characteristics

A fault diagnosis technique for photovoltaic (PV) panels is presented. While a PV system is sampling the terminal voltage and current of its connected panel for tracking the maximum power point of the panels, the proposed technique utilizes the sampled data to estimate the intrinsic parameters of the panel simultaneously. Compared with the prior-art approach of using the static current-voltage characteristics, the proposed technique utilizes the...