MODELING &amp; ANALYSIS OF STANDALONE PHOTOVOLTAIC SYSTEM

., Sankalp Verma

doi:10.15623/ijret.2013.0211039

Cited by 11 publications

References 9 publications

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Performance Improvement of Perturb and Observe Maximum Power Point Tracking Technique for Solar PV Applications

Anya

Saha

Ahmed

et al. 2019

Modern Maximum Power Point Tracking Techniques for Photovoltaic Energy Systems

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Perturb and Observe Maximum Power Point Tracking (MPPT) is extensively used in charge controllers for extracting maximum power from photovoltaic (PV) module irrespective of irradiance, temperature and load variation. The MPPT technique is mainly used for obtaining the maximum power from the solar PV module and conversion circuit to the load and improving the power quality of PV power generation for grid connection. There are several MPPT methods for example; Perturb and Observe (P&O) method, Incremental Conductance (IC) method, constant voltage method, etc. The standard P&O MPPT technique has drawbacks bordering on fast convergence time to maximum power point, poor system response to fast-changing irradiance and steady-state oscillation with fixed step size. This chapter discusses the detailed operation and implementation of an improved P&O algorithm technique to resolve the various challenges of the standard P&O algorithm. This technique segments the operational region of the PV array into four operating sectors and based on the sector location from the maximum power point (MPP), step size modifications are implemented. Furthermore, critical comparison is made between the new P&O method and the standard P&O method. Finally, both MPPT algorithms have been implemented in hardware to evaluate their performance and efficiency. The measured results show that the average efficiency of the proposed system is 96.89% which is more than 4% higher than the standard system.

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