Performance improvement of partially shaded PV array using magic square view topology to mitigate the mismatching power losses

Lahcen El Iysaouy (1) , M’hammed Lahbabi (2) , Abdelmajid Oumnad (1)

1 Mohammadia School Engineering - Department of Electrical Engineering
2 Faculty of Sciences and Techniques Fes saiss, University Sidi Mohammed Ben Abdella - Department of Electrical Engineering

Partial Shading Conditions (PSCs) decreases the output power from Photovoltaic (PV) arrays and represents multiple Maximum Power Points (MPPs) on output characteristics P-V, due to mismatching power losses between the PV panels. The main aim of This paper is to model, simulate, and enhance the performance of two PV array configuration namely Total Cross Tied (TCT) and proposed configuration Magic Square View (MSV) of size 9 ×9 PV array [1]-[4], which is 81 PV modules in the total considered for this study under Short Wide shading patterns in order to extract the maximum power. The investigation of the enhancement of PV array configurations is carried out with regard to the comparison of the Global peak of outlet power (GP) of the proposed topology and TCT configuration. The parameters of the PV array configurations are performed in MATLAB/Simulink software. TCT configuration A 9×9 PV array connected in TCT topology is considered for the study [5]. A TCT configuration is achieved by a simple connection of the PV module to its adjacent PV module. All the PV modules are then cross-connected. The PV array consists of 81 modules with nine columns and nine rows. The PV modules are labelled as pq where p denotes the row and q, the column in which the module is attached. For example, the PV module 99 represents the module located in the nine row and nine columns. Proposed MSV configuration of PV systems The proposed MSV method inspired from a magic square puzzle of order n = 9, is pattern of n 2 numbers, and usually different integers, in a square, such that the n numbers in all rows, all columns, and both diagonals sum to the same constant. in this paper we have used for the study the MSV pattern shown in Figure 1. An MSV includes the positive integers from 1 to n 2. The

Mots clés: Partial shading; Magic Square View (MSV); TCT; Photovoltaic

Domaines: Energie électrique; Electronique; Micro et nanotechnologies/Microélectronique; Ingénierie assistée par ordinateur; Réseau de neurones [cs.NE]

Lahcen El Iysaouy, M’hammed Lahbabi, Abdelmajid Oumnad. Performance improvement of partially shaded PV array using magic square view topology to mitigate the mismatching power losses. International Meeting on Advanced Technologies in Energy and Electrical Engineering (IMAT3E’18), Nov 2018, Fez, Morocco. ⟨hal-01951254⟩