摘要:
Angle mapping logic for a solar array of a two-axis tracker mechanism for the concentrated photovoltaic system is configured to facilitate a remotely initiated angle mapping process and then remotely diagnose movement and other pointing errors in the solar array on the two-axis solar tracker mechanism. Deviations in power produced in a set of test points of the angle mapping process and shapes of the plotted information provide diagnostics to indicate error locations and types of pointing errors present in the equipment in the solar array and in the two-axis tracker mechanism. Information from the angle mapping process is sent over a network to a remote server for analysis. The test can be initiated from the remote server.
摘要:
A system may include determination of whether solar tracking of a first period of time is to be performed in a first region of sky or in a second region of sky, determination of a target tracker position in a first coordinate system if the solar tracking of the first period of time is to be performed in the first region of sky, and determination of the target tracker position in a second coordinate system if the solar tracking of the first period of time is to be performed in the second region of sky. In some aspects, determination of the target tracker position in the second coordinate system includes subtracting 360° from an azimuth angle in the first coordinate system if the azimuth angle in the first coordinate system is between +180° and +360°, wherein the azimuth angle in the second coordinate system is determined to be equal to the azimuth angle in the first coordinate system if the azimuth angle in the first coordinate system is between 0 and +180°.
摘要:
Methods, systems, and apparatus, are provided for wireless networking In some implementations, a self-configuring wireless system includes at least one wireless network device; and an access point device; wherein the access point device and the at least one wireless network device are preconfigured with a common key so as to enable the access point device to establish a secure wireless network with the at least one network device using the common key upon powering up the access point device and the at least one wireless network device at a user site.
摘要:
A hybrid solar tracking algorithm is implemented in a two-axis solar tracker mechanism for a concentrated photovoltaic (CPV) system in order to control the movement of the two-axis solar tracker mechanism. The hybrid solar tracking algorithm uses both 1) an Ephemeris calculation and 2) an offset value from a matrix to determine the angular coordinates for the CPV cells contained in the two-axis solar tracker mechanism to be moved to in order to achieve a highest power out of the CPV cells. The matrix populates with data from periodic calibration measurements of actual power being generated by the solar tracker and the tracking algorithm applies Kalman filtering to those measurements over time of the operation of the solar tracking mechanism to create the offset value being applied to the Ephemeris calculation to determine the angular coordinates for the CPV cells.