A High-performance global maximum power point tracker of PV system for rapidly changing partial shading conditions
Document Type
Article
Publication Date
3-1-2021
Abstract
This article proposes a fast and efficient maximum power point tracker (MPPT) for photovoltaic (PV) systems under rapidly changing partial shading conditions. An intelligent mechanism is adopted to systematically schedule the search for the global maximum power point (GMPP) on the P-V curve. As a result, the voltage track, i.e., the path length that the operating point traverses along the voltage axis of the curve (until it converges to GMPP), is reduced. The search region is further minimized using a novel skipping scheme, where the voltage section that does not contain GMPP is discarded. The superiority of the proposed scheme is evaluated against two recent algorithms, namely, the maximum power trapezium and the flower pollination MPPT. The performance is analyzed in terms of convergence time, voltage track, and transient efficiency. The MATLAB simulation is verified experimentally using a PV array simulator, in conjunction with a buck-boost converter. The competing MPPT algorithms are implemented using the TMS320F240 DSP on the dSPACE DS1104 platform. The results indicate that under the same operating and shading conditions, the proposed scheme is the fastest and most reliable and exhibits the highest overall transient efficiency.
Keywords
Maximum power point trackers, Convergence, Tracking, Transient analysis, Algorithms, Flowcharts, Photovoltaic systems, Global maximum power point (GMPP), maximum power point tracker (MPPT), partial shading, photovoltaic (PV) system
Divisions
fac_eng
Funders
Ministry of Higher Education (MoHE) Algeria[PNE16-17],Ministry of Education (MoE) Malaysia under the Rising Star Grant Award[R.J130000.7823.4F919]
Publication Title
IEEE Transactions on Industrial Electronics
Volume
68
Issue
3
Publisher
IEEE-Inst Electrical Electronics Engineers Inc
Publisher Location
445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA