4TH International Congress on Technology - Engineering & SCIENCE - Kuala Lumpur - Malaysia (2017-08-05)

Synergetic Power Optimization Control Of Photovoltaic Systems
A synergetic control (SC) technique is applied to develop a new maximum power point tracking (MPPT) control strategy for stand-alone photovoltaic (PV) systems through measuring PV array outputs and changing DC/DC converter control signal’s duty cycle. The closed loop system stability is guaranteed using Lyapunov’s method. This control strategy is simple and robust to irradiance and temperature variations. Simulation results are compared to those obtained using Hill Climbing method and then served to test the control robustness of the developed system. High performances under environmental parameter variations have demonstrated synergetic control usefulness.
Keywords: Synergetic control, Maximum power point tracking, Photovoltaic system, DC/DC converter, Hill Climbing, Stability
HADJIRA ATTOUI, FARID KHABER, HAMIMI CHEMALI, AIDA CHERIF