This study aims to develop a high–performance Maximum Power Point Tracking (MPPT) strategy for Photovoltaic (PV) systems, with the objective of achieving fast convergence, minimal oscillations, and stable operation under rapidly changing irradiance. The nonlinear behavior of PV systems poses a significant challenge to meeting these goals and maximizing harvested energy. To address this, the paper presents a dynamic MPPT strategy that leverages PV characteristics through an Artificial Neural Network (ANN) trained using graph–based data processing methods to estimate the reference voltage. The neural estimator is integrated with a dynamic recurrent neurocontroller, which is trained via the Real–Time Recurrent Learning (RTRL) algorithm. To ensure system stability, a Lyapunov–based adaptive learning rate is applied to dynamic ANN–RTRL. Simulation studies were first performed to assess the effectiveness and robustness of the proposed ANN under varying meteorological conditions, and the results were subsequently validated experimentally using a Chroma PV emulator and a dSPACE 1202 MicroLabBox. The ANN performance was also compared with conventional, advanced, optimization, and intelligent algorithms under severe environmental fluctuations. The proposed ANN–RTRL was experimentally benchmarked against two reference methods: an ANN using the Least Mean Squares (ANN–LMS) algorithm and a conventional Perturb and Observe (P&O) with a Proportional–Integral (PI) controller. Results under both standard and rapidly varying irradiance conditions show that ANN–RTRL and ANN–LMS achieve tracking efficiencies above 99%, with reduced oscillations and improved precision. Notably, ANN–RTRL exhibits superior robustness and reaches the Maximum Power Point (MPP) 58% faster than ANN–LMS and 5% faster than P&O–PI, confirming its suitability for high–performance, real–time PV MPPT applications.
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