Suntrack Backtracking System
Backtracking algorithm main specifications are:
1.- Avoids shadowing among panels/trackers
2.- Embedded in Suntrack controllers.
3.- Fully automatic during tracker lifetime. No manual or time adjustments.
4.- 2 axis or 1 axis backtracking option.
5.- South orientation offset configurable.
6.- Easy to configure with Suntrack Configuring PC software
7.- Increases power thrughput.
8.- Improves power plant lay-out (land area/watt)
Backtracking Algorithm Eficiency. Basic info for study
1.- Location: Latitude: 38º (for example Spain)
2.- Panels size: 50mx 2m
3.- Fix panel optimal inclination: 36º
4.- Fix panel row oriented : South. East-West row
5.- 1 axis row: North-south oriented. East ->West movement
Backtracking Algorithm concept
Example:Backtracking Efficiency 5 meter gap
Backtracking Algorithm Efficiency OPTIMIZER
We could calculate the best lay-out of your tracker for maximize the global efficiency (land area and production). Example: tracker with and without backtracking algorithm and delta_y = rows separation in meters:
| Backtrack | delta_y | Effic. summer |
Effic. equinox |
Effic. winter |
Year effic. |
Effic. improvmentt |
|---|---|---|---|---|---|---|
| No | 2,5 | 0,3822 | 0,2591 | 0,1256 | 0,2562 | - |
| No | 3 | 0,4222 | 0,2903 | 0,1442 | 0,2865 | - |
| No | 3,5 | 0,4495 | 0,3128 | 0,1583 | 0,3081 | - |
| No | 4 | 0,4696 | 0,3297 | 0,1694 | 0,3245 | - |
| No | 4,5 | 0,4847 | 0,343 | 0,1785 | 0,3372 | - |
| Yes | 2,5 | 0,4545 | 0,3218 | 0,1635 | 0,3154 | 23,1 % |
| Yes | 3 | 0,4795 | 0,3429 | 0,1766 | 0,3355 | 17,1 % |
| Yes | 3,5 | 0,4968 | 0,358 | 0,1865 | 0,3498 | 13,5 % |
| Yes | 4 | 0,5094 | 0,3695 | 0,1942 | 0,3607 | 11,2 % |
| Yes | 4,5 | 0,5190 | 0,3784 | 0,2004 | 0,3691 | 9,5 % |
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