Concentrating photovoltaic cell array
Apparatus for the industrial wiring and final testing of photovoltaic concentrator modules, consisting of a module frame, a lens disc, a sensor carrier disc and an electrical line routing arrangement, comprising the following features: a) a laser contact-making device for the contactless connection of connecting lines between the individual sensors and of connecting elements and of collective contact plates, wherein the line routing arrangement on the sensor carrier disc as basic structure has, in each case, five CPV sensors connected in parallel, and these parallel circuits are connected in series, b) a device for testing electrical properties, wherein a specific voltage is applied to CPV sensors themselves, and the light emitted by them via the lenses is detected and assessed, c) a device for testing tightness of finished concentrator modules, wherein compressed air is applied to the modules in the interior and the emission of compressed air is checked.
1. A concentrating photovoltaic (CPV) module, comprising:
a lens disc comprising at least one lens for concentrating radiation; and
a sensor carrier disc including at least one solar cell array having a plurality of solar cell assemblies (SCAs), each SCA of the plurality comprising at least a solar cell and a cooling and contact plate, the solar cell having a first contact pole of a first polarity and a second contact pole of an opposite second polarity, the solar cell mounted to the cooling and contact plate such that the second contact pole is in electrical contact with the cooling and contact plate;
wherein the SCAs of the plurality are interconnected with each other to form a combination of parallel and serial connections, and wherein an indirect parallel connection between the first contact poles of the same polarity of a first SCA and a second SCA of the plurality is achieved via a third SCA and a fourth SCA of the plurality, the indirect parallel connection comprising:
a first conductive element extending between the first contact pole of the first polarity of the first SCA and the second contact pole of the opposite second polarity of the third SCA of the plurality and providing a serial connection between the first SCA and the third SCA;
a second conductive element extending between the second contact pole of the opposite second polarity of the third SCA and the second contact pole of the opposite second polarity of the fourth SCA of the plurality and providing a parallel connection between the third SCA and the fourth SCA; and
a third conductive element extending between the second contact pole of the opposite second polarity of the fourth SCA and the first contact pole of the first polarity of the second SCA of the plurality and providing a serial connection between the fourth SCA and the second SCA.
2. The CPV module of claim 1 , wherein the parallel connection between the second contact pole of the third SCA and the second contact pole of the fourth SCA of the plurality comprises an electrical conductor extending between the cooling and contact plate of the third SCA and the cooling and contact plate of the fourth SCA.
3. The CPV module of claim 2 , wherein the SCAs of the plurality are arranged in a plurality of groups, each of the groups including two or more SCAs of the plurality of SCAs electrically interconnected in parallel, the groups electrically interconnected in series, one group of the plurality of groups comprising the first SCA and the second SCA, another group of the plurality of groups comprising the third SCA and the fourth SCA, each group of the plurality of groups comprising at least one bypass diode.
4. The CPV module of claim 3 , wherein each of the groups comprises at least five SCAs of the plurality of SCAs.
5. The CPV module of claim 4 , wherein the plurality of groups comprises at least thirty-eight groups.
6. The CPV module of claim 1 , wherein the SCAs of the plurality are arranged in a plurality of groups, each of the groups including two or more SCAs of the plurality of SCAs electrically interconnected in parallel, the groups electrically interconnected in series, one group of the plurality of groups comprising the first SCA and the second SCA, another group of the plurality of groups comprising the third SCA and the fourth SCA, each group of the plurality of groups comprising at least one bypass diode.
7. The CPV module of claim 6 , wherein each of the groups comprises at least five SCAs of the plurality of SCAs.
8. The CPV module of claim 7 , wherein the plurality of groups comprises at least thirty-eight groups.
9. The CPV module of claim 1 , wherein five SCAs of the plurality are connected in indirect parallel.
10. The CPV module of claim 1 , wherein the SCAs of the plurality are arranged in at least thirty-eight groups, each of the groups including two or more SCAs of the plurality of SCAs electrically interconnected in parallel, the at least thirty-eight groups electrically interconnected in series, one group of the at least thirty-eight groups comprising the first SCA and the second SCA, another group of the at least thirty-eight groups comprising the third SCA and the fourth SCA.
11. The CPV module of claim 10 , wherein the at least thirty-eight groups comprise a first set of nineteen of the groups of SCAs and a second set of nineteen of the groups, the first set and the second set positioned next to each other and connected in series on a first side of the solar cell array, the solar cell array further comprising collective contact plates of first and second polarity acting as terminals on a second side of the solar cell array opposite the first side of the solar cell array.
12. The CPV module of claim 1 , wherein the sensor carrier disc comprises twelve solar cell arrays arranged in two rows of six solar cell arrays, and wherein a first group of six neighboring solar cell arrays of the twelve solar cell arrays are arranged in two rows of three solar cell arrays and connected in series, and wherein a second group of six neighboring solar cell arrays of the twelve solar cell arrays are arranged in two rows of three solar cell arrays and connected in series.
13. The CPV module of claim 12 , wherein terminals of each of the twelve solar cell arrays face toward a central web.
14. The CPV module of claim 13 , wherein terminals of the CPV module are located on one side of the CPV module at an extremity of the central web.
15. The CPV module of claim 14 , further comprising collecting lines connecting the terminals of the solar cell arrays of at least one of the first and second groups of six solar cell arrays with the terminals of the CPV module, and wherein the collecting lines carry current supplied from the at least one of the first and second groups of six solar cell arrays substantially from a geometrical center of the CPV module.