ANFIS COA History of engineering & technology LSTM cell MPPT algorithm PV fleet PV power prediction PVs power output forecasting Solar cell parameters adaptive neuro-fuzzy inference systems artificial neural network artificial neural networks clear sky irradiance clustering-based PV fault detection complex network analysis data fusion deterioration deterministic optimization algorithm diffractive grating diffractive optical element double flames generation (DFG) strategy duty cycle environmental parameters fault prognosis feed-forward neural networks finite difference time domain genetic algorithm global horizontal irradiance global optimization gradient descent