Design of an Open Source CubeSat Solar Module with a Built in Variable Step Incremental Conductance Maximum Power Point Tracker

2021 ◽  
Author(s):  
David A. Lay ◽  
Grace Semerjian
Keyword(s):  
Open Source ◽  
Maximum Power ◽  
Maximum Power Point ◽  
Solar Module ◽  
Maximum Power Point Tracker ◽  
Incremental Conductance ◽  
Variable Step ◽  
Power Point

scholarly journals Modified Variable Step-Size Incremental Conductance MPPT Technique for Photovoltaic Systems

Electronics ◽  
2021 ◽  
Vol 10 (19) ◽  
pp. 2331
Author(s):  
Isaac Owusu-Nyarko ◽  
Mohamed A. Elgenedy ◽  
Ibrahim Abdelsalam ◽  
Khaled H. Ahmed
Keyword(s):  
Slope Angle ◽  
Scaling Factor ◽  
Maximum Power ◽  
Variable Step Size ◽  
Step Size ◽  
Maximum Power Point ◽  
Angle Variation ◽  
Incremental Conductance ◽  
Variable Step ◽  
Power Point

A highly efficient photovoltaic (PV) system requires a maximum power point tracker to extract peak power from PV modules. The conventional variable step-size incremental conductance (INC) maximum power point tracking (MPPT) technique has two main drawbacks. First, it uses a pre-set scaling factor, which requires manual tuning under different irradiance levels. Second, it adapts the slope of the PV characteristics curve to vary the step-size, which means any small changes in PV module voltage will significantly increase the overall step-size. Subsequently, it deviates the operating point away from the actual reference. In this paper, a new modified variable step-size INC algorithm is proposed to address the aforementioned problems. The proposed algorithm consists of two parts, namely autonomous scaling factor and slope angle variation algorithm. The autonomous scaling factor continuously adjusts the step-size without using a pre-set constant to control the trade-off between convergence speed and tracking precision. The slope angle variation algorithm mitigates the impact of PV voltage change, especially during variable irradiance conditions to improve the MPPT efficiency. The theoretical investigations of the new technique are carried out while its practicability is confirmed by simulation and experimental results.

An Improved Multistage Variable-Step MPPT Algorithm for Photovoltaic System

2013 ◽  
Vol 347-350 ◽  
pp. 1833-1838
Author(s):  
Ping Wang ◽  
Zhe Zhou ◽  
Meng Meng Cai ◽  
Jing Bin Zhang
Keyword(s):  
Steady State ◽  
Maximum Power ◽  
Photovoltaic System ◽  
Maximum Power Point ◽  
Incremental Conductance ◽  
Conductance Method ◽  
Variable Step ◽  
Power Point ◽  
Steady State Performance ◽  
Improved Algorithm

This paper presents an improved multistage variable-step incremental conductance method to achieve the maximum power point tracking (MPPT). Compared with the traditional variable-step incremental conductance method, this improved algorithm optimizes the selection of the step size so that the tracking of the maximum power point is more quickly and the steady-state performance is better. Furthermore, the algorithm can still guarantee the quickness and accuracy of MPPT when the environmental conditions change suddenly and tremendously. At last, matlab simulation was applied to compare the characteristics of multistage variable-step algorithm with that of the other. And the simulation results verified that the improved algorithm has better dynamic and steady-state performance.

scholarly journals Design and Development of Maximum Power Point Tracker for Solar Module Using Microcontroller

OALib ◽  
2017 ◽  
Vol 04 (05) ◽  
pp. 1-12
Author(s):  
M. Tabassum ◽  
M. A. Aziz Jahan ◽  
N. Jahan ◽  
M. M. Rahman ◽  
M. N. Sadik
Keyword(s):  
Maximum Power ◽  
Design And Development ◽  
Maximum Power Point ◽  
Solar Module ◽  
Maximum Power Point Tracker ◽  
Power Point
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