A Review of Maximum Power Point Tracking Techniques for Photovoltaic System

The consumption of electrical energy is increasing and due to limited supply of fossil fuel, the only option left is the renewable energy (RE). In last few years there has been an increase in attention towards the use of solar energy. The power-voltage characteristic of photovoltaic cell is non-linear. To get the maximum output power from photovoltaic system, the maximum power point (MPP) must be continuously tracked. The maximum power point tracking (MPPT) algorithms enhance the efficiency of PV system. The Maximum Power Point (MPP) of a photovoltaic system varies with irradiance, temperature and load connected to the (PV) system. In literature we have found large no. of MPPT algorithms categorized on the basis of complexity, cost,number of sensor required. This paper comprehends the most commonly implemented algorithms such as P&O, Incremental Conductance, Ripple Correlation Control, Current sweep and also some intelligent control algorithm such as ANN & Fuzzy logic. The MPPT algorithms are defined and compared in a tabular form.