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Solar array module system with passive switching

專利號(hào)
US10868204B2
公開(kāi)日期
2020-12-15
申請(qǐng)人
SOLARWAT LTD（IL Even Yehuda）
發(fā)明人
Boris Vatelmacher; Alexander Schuster
IPC分類
H01L31/05; H01L31/042; H01F27/28; H01L31/02; H02M3/02
技術(shù)領(lǐng)域
solar,cells,row,physical,side,yl,rows,in,xt,module
地域： Even Yehuda

摘要

A solar array module system for generating electric-power, preconfigured to prevent electric blockage of the module when a physical row of solar cells malfunctions. The module includes a matrix of X physical rows and Y columns of solar cells, electrically interconnected in a plain criss-cross matrix. The columns of the physical matrix are divided into a first side, numbering YL columns, and a second side, numbering Y-YL columns. The first side includes cells that are physically inverted relative to the cells of the second side. The negative side of the cell in the 1+nth physical row of column YL is electrically connected to the negative side of the cell in the X-nth physical row of column YL+1 (0≤n

說(shuō)明書(shū)

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a national stage entry of PCT/IL2016/050957 filed Sep. 1, 2016, which claims convention priority from Israeli patent application 241029 filed on Sep. 1, 2015, the contents each of which are hereby incorporated by reference in their entirety.

FIELD OF THE INVENTION

The present in, relates to a solar array module system for generating electric-power and more particularly, to a solar array module system facilitated to maximize the power generation from a solar module, configured to maximize the power generation from a plurality of solar cells, interconnected in a matrix configuration in a light obstruction situation.

BACKGROUND OF THE INVENTION

Photovoltaic cells have been widely used in a variety of applications to generate convenient electricity. Typically, a single solar cell produces an output voltage of around 0.5V, and a plurality of solar cells, typically, with no limitations, that are Silicon based, is conventionally connected in series to provide higher voltage levels.

A solar array system includes solar array modules, wherein each solar array module includes a multiplicity of solar cells. The solar modules are typically tilted towards the sun. However, when the angle of the sun is very low and a front module may cast a shadow on a portion of a neighboring module that is positioned behind the front module, typically on the lower rows of solar cells of the solar-array module. Light may also be blocked or obstructed due to snow, buildings, billboards that typically cast a shadow on one side of the solar-array module. Thereby, the light obstruction causes a substantial reduction in the production yield of the module.

權(quán)利要求

1
What is claimed is:1. A non-reconfigurable solar array module, pre-configured to prevent electric blockage of the module when at least one physical row of solar cells malfunctions, the solar array module comprising a matrix of X physical rows and Y columns of solar cells;wherein said columns are divided into a first side numbering YL columns and a second side numbering Y-YL columns;wherein Y≥4;wherein the first side comprises at least 2 columns and the second side comprises at least 2 columns;wherein YL columns on said first side comprise solar cells that are physically inverted, polarity-wise, relative to the solar cells on said second side;wherein the solar cells in each of said columns are connected in series;wherein solar cells in each of said physical rows on said first side are electrically connected in parallel;wherein solar cells in each of said physical rows on said second side are electrically connected in parallel;wherein the negative side of the solar cell in the 1+nth physical row of column YL is electrically connected to the negative side of the solar cell in the X-nth physical row of column YL+1, where n is an integer and 0≤n<X; andwherein the positive side of the solar cell in the Xth physical row of column YL is electrically connected to the positive side of the solar cell in the 1st physical row of column YL+1.2. The module of claim 1 further comprising a power converter connected to the positive side of physical row 1 on said second side, and the negative side of physical row X on said second side.3. The module of claim 1 further comprising a power converter connected to the positive side of physical row X on said first side, and the negative side of physical row 1 on said first side.4. The module of claim 3, wherein said power converter is selected from the group consisting of: a DC/DC power converter; a DC/DC transformer and a combination thereof.5. The module of claim 4, wherein said power converter comprises a plurality of transistors for alternately connecting said power converter to said matrix of solar cells, wherein the operational duty cycle of the transistors is constant and there is a dead time for preventing said transistors from conducting simultaneously between the switching time ON to OFF or OFF to ON of the transistor.6. The module of claim 5, wherein said dead time is less than 8% of the duty cycle.7. The module of claim 1, wherein at least one of said solar cells in a column of solar cells is further electrically connected in series to at least one additional said solar cell in the same column, to form a serial unit.
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