## 1 Introduction
### Related Works  
Static reconfiguration methods are basically based on the principle of physically swapping shaded and unshaded modules. Since these methods do not require switching circuits, the control algorithms are not complex. Different static reconfiguration methods have been presented in the literature. The SuDoKu method, which is one of the most used methods, has been applied to 9 \(\times\) 9 PV arrays with TCT connections [5; 6; 7; 8]. The modulesin this array are numbered and divided into 3 \(\times\) 3 matrices. The modules in the rows of each matrix are distributed in the array in such a way that their irradiance levels are close to each other. Thus, the power efficiency of the array can be increased. However, a laborer and long electrical cables are needed for the relocation of these modules. In the optimal SuDoKu method, which is made to reduce cable costs and losses, a certain matrix section of the array is kept fixed [9; 10]. However, it is a disadvantage that the array performance cannot be increased sufficiently in the event of shadowing in this fixed section. The Futoshiki method is applied to the 5 \(\times\) 5 PV array and aims to distribute the shaded modules to the array [11]. In this method, only the physical displacement is made without changing the electrical connection between the modules. The magic square and dominant square methods are also static methods used in square PV arrays in the mxm structure, which physically displace the shaded modules by distributing them in the array. The zig-zag method, on the other hand, works with a similar logic to the methods explained above, but it can be applied to arrays in the mxm structure [12]. Dynamic reconfiguration methods aim to increase the performance of the array by changing the electrical connection structure of the modules in the PV array. This electrical change can be made by changing all or a certain group of modules. With the help of the switching circuit and the control algorithm, PV modules can be dynamically switched according to the partial shading condition. The general aim here is to place the modules with similar irradiance intensities in the same rows of the array. In the electrical array reconfiguration (EAR) method, PV modules in the array are reconfigured using radiant intensity and line current information [13; 14]. This information is processed in control circuits such as DSP or FPGA and serial/parallel relocation is performed within the array by means of signals sent to switching circuits [15; 16; 17]. Based on this method, some methods derived from this method have been developed. For instance, Methods that divide the array into two different groups and use shading degrees with the fuzzy control method and reconfigure using short circuit and open circuit information instead of shading information, again with the FLC control method, have been presented in the literature [18; 19]. However, the reconfiguration of all or two modules in these methods brings about a significant control complexity. The irradiation equalization reconfiguration (IER) method is based on equalizing the radiant intensities of PV panels in the rows of the array [20; 21; 22; 23]. In this method, shaded panels are connected to the line containing unshaded panels to reduce current mismatch between the panels. In this way, the effect of bypass diodes is reduced and a higher efficiency is obtained from the array. In this method applied to the TCT structured array, a switching structure is designed so that each PV panel can be connected to different rows of the array. The irradiance intensities of the panels are measured, and these switches are controlled by a controller, and the power produced by the array can be increased. This method also requires the use of a large number of switching elements and the losses of the switching elements and the control complexity should be taken into consideration. In order to eliminate this disadvantage in the method, a proposal such as semi-reconfiguration has been presented, and its effects have been shown [24].