pvperfsolar performance modeling

Reference / Tracker field shading tables

Model option

Every degree

The table at the timestep's whole degree of rotation, over the neighbours across the axis

Inputs used: Tracker field shading tables, Row-to-row shading geometry, Rotation limit (symmetric), Placements

Method

At each timestep the diffuse and albedo factors are the integrals of the field's shading-factor table with every tracker at the timestep's rotation rounded to the whole degree (page step.near_shading.pvsyst_table, equations 4 and 5). Each whole degree is computed once. The tables read each tracker's neighbours across its axis. The angular-response factors of the diffuse and ground-reflected light take the rows model's mask every 5° of rotation, read by linear interpolation (page step.diffuse_iam.conditioned_integral).

API

array.scene_tracker_tables = every_degree