A novel hybrid MPPT algorithm using linear Extrapolation

Owing to the non-linear characteristics of the Photovoltaic (PV) Module, Maximum Power Point Tracking (MPPT) algorithms to obtain the maximum power out of a PV module are gaining popularity over the years. This paper proposes a novel hybrid MPPT algorithm, which uses a combination of linear extrapolation and perturb and observe algorithm to determine the maximum power point of a PV module. Since the traditional perturb and observe (P&O) MPPT algorithm has the disadvantages of being slow, inaccurate and incorrect response to rapidly varying environmental conditions, the proposed algorithm is proven to be faster and more accurate in tracking MPP than the former. A C-program was coded to validate the proposed algorithm and the results are compared with P&O method.