IMPLEMENTATION OF FUZZY LOGIC CONTROLLER BASED VOLTAGE EQUIVALIZER FOR PV POWER GENERATION UNDER PARTIAL SHADING
Keywords:
Partial shaded photo voltaic system, Voltage equalizer, Fuzzy logic controller, MMPP, PV arrayAbstract
Photovoltaic (PV) systems have been developed into mature technology that has been used in specialized
applications. Partially shaded photovoltaic system result in reduction of power generation and produces multiple
maximum power points (MMPP) in the characteristics. In this project, voltage equalizer is employed to solve this issue.
voltage equalizer is designed by incorporating inductor, capacitor, diode and filters in DC- DC converter. This equalizer
receives the unbalanced voltages from PV array and makes it balanced by Converter operation itself. Small amount of
power generated is transferred from the un-shaded PV to shaded PV so that the entire PV array is operating at the same
voltage. It is observed that voltage imbalance is slowly eliminated by this equalizer.