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Authors
Affiliations
1 Research Scholar, Dept. of Electrical Engg., NIT Warangal, TS - 506004, IN
2 Execute trainee, Power Grid Corporation of India Ltd.(POWERGRID), Delhi, IN
3 Assistant Professor, Dept. of Electrical Engg., NIT Warangal, TS - 506004, IN
Source
Power Research, Vol 12, No 4 (2016), Pagination: 797-805
Abstract
The performance of a photovoltaic (PV) module is affected by irradiance and temperature. Often, it is also affected by partially or completely shaded conditions by passing clouds. This paper presents a MATLAB/SimulinkTM based model to study the I–V and P–V characteristics of a PV panel under partially shaded and non-shaded conditions. And also, Maximum Power Point Tracking (MPPT) of PV module by DC-DC boost converter is explained. The design of boost converter parameters and its affect on power tracking of the PV module are explained. The perturbation and observation (P&O) method is implemented for maximum power extracting from PV panel, because of its easy implementation. The P&O algorithm tune the dc-dc boost converter duty cycle to ensure that PV system operates at MPPT. A 100 W Photovoltaic (PV) panel with dc-dc boost converter is implemented practically for experimental validation. This work is extended for tracking of MPPT during shading conditions also. The P and O algorithm is implemented in DSpace, in which the output power of PV panel compared for every sampled time by varying the duty cycle in small steps.
Keywords
Boost converter, Maximum Power Point Tracking (MPPT), Perturb and Observe (P&O), PV panel
