Improved Social Ski Driver-Based MPPT for Partial Shading Conditions Hybridized With Constant Voltage Method for Fast Response to Load Variations

Abstract

In this paper, an Improved Social Ski Driver based MPPT algorithm (ISSD-MPPT) has been proposed. Single dynamic tuning parameter making the algorithm implementation simpler as compared to the others. Besides, the ISSD-MPPT also increased the convergence speed (CS) by 38.75% compared to the conventional Social Ski Driver algorithm (SSD). Then, a new approach to increase the response speed during load variations, which is applicable in any conventional dc-dc converter, has been proposed. Different complex Partial Shading Conditions (PSCs) were tested on a buck-boost converter with an average tracking time less than 1s and a tracking efficiency of 99.8%. The MPPT rating through rating computation technique proved the proposed method consists of a higher number of features, with fast CS for irradiance and load variations, along with the low power fluctuations during the tracking state.