摘要:
A drive can include a positional sensor within an outer housing of the drive so as to provide an output indicative of a position of the drive. The positional sensor can be an inclinometer. The inclinometer can be used for feedback control of an inclination of the drive. The drive can further include control electronics within the same housing, so as to provide feedback control of a motor of the drive. The control electronics can include an input for receiving a requested inclination and can be configured to drive the motor until the inclinometer outputs a signal indicative of the requested angle.
摘要:
Adherence to flux or resultant measurable parameter limits, ranges, or patterns can be achieved by directing heliostat mounted mirrors to focus on aiming points designated on the surface of a solar receiver. Different heliostats can be directed to different aiming points, and a heliostat can be directed to different aiming points at different times. The cumulative flux distribution resulting from directing a plurality of heliostats to any aiming point on a receiver surface can be predicted by using statistical methods to calculate the expected beam projection for each individual heliostat or alternatively for a group of heliostats. Control of the heliostats in a solar power system can include designating aiming points on a receiver from time to time and assigning heliostats to aiming points from time to time in accordance with an optimization goal.
摘要:
A solar concentrating system includes a heliostat having an actuator that adjusts a reflecting direction of a mirror reflector. An anemometer measures wind direction and wind speed. A controller generates and outputs a target angle command to the actuator in order to control the actuator. The controller generates the target angle command based on the current position of the sun and on the wind direction and the wind speed measured by the anemometer.
摘要:
The invention relates to a tower-type system (11) for concentrating and capturing thermosolar energy, comprising a tower (13) having a fixed part (81) and a movable part (82), wherein the movable part ascends or descends along a shaft of the tower (13) and is provided with a gondola (83) that can perform azimuthal rotation, and wherein an assembly of heliostats (12) that can move around the tower (13) direct the solar radiation toward a panel.
摘要:
The present invention provides an apparatus and method for solar tracking. The solar tracking sensor array and method so disclosed can be used with any device that requires a specific orientation to the sun for optimal operation. The system relies upon a sun tracking mechanism which includes a plurality of phototransistors configured in a particular manner. The apparatus can further be used with an analog sensor circuit which is also disclosed herein. Although the device and method are disclosed in conjunction with a solar tracking device, which includes the analog sensor circuit, a drive assembly, and a power source, these components may be used independently of one another.
摘要:
A solar generator unit for converting sunlight, having a mirror array, a light converter, support designed to hold the mirror array, and a tracking unit for causing the mirror array to track the sun position. The light converter is arranged above the mirror array and the concentrated light strikes a receiver surface of the light converter. The support has an essentially horizontal first shaft with a first radial bearing point and a second radial bearing point arranged on mutually opposite sides of the mirror array. A third radial bearing point accommodates a second shaft that is essentially perpendicular to the first shaft is flange-mounted between the first bearing point and the second bearing point so that the axis of rotation of the second shaft is pivoted along with a rotation of the first shaft, and the mirror array is connected in a non-positive way to the second shaft.
摘要:
A method is provided for controlling the alignment of a heliostat with respect to a receiver, wherein an image sensor device is arranged on a mirror device of the heliostat, wherein the heliostat is aligned by the image sensor device using image recognition in such a way that a first angle of a first vector pointing towards the sun, relative to a prescribed vector of the mirror device, and a second angle of a second vector pointing towards a prescribed target area of the receiver, relative to the prescribed vector, are in a relationship to each other which is dependent upon the prescribed vector of the mirror device, and wherein images of the sun and the prescribed target area and their position relative to the prescribed vector are determined.
摘要:
Photovoltaic systems with managed output and methods for managing variability of output from photovoltaic systems are described. A system includes a plurality of photovoltaic modules configured to receive and convert solar energy. The system also includes a sensor configured to determine an orientation for each of the plurality of photovoltaic modules, the orientations based on a maximum output from the photovoltaic system. The system also includes an orientation system configured to alter the orientation of one or more of the plurality of photovoltaic modules to provide a reduced output from the photovoltaic system, the reduced output less than the maximum output.
摘要:
A solar energy power generation system generates AC electrical power from solar radiation through the use of parabolic troughs to capture the energy and a fluid turbine to convert the solar energy to mechanical energy. The turbine is directly coupled to a generator to produce AC electrical power.
摘要:
A solar tracking apparatus comprises an array frame assembly adapted to support at least one solar collecting product, rotation means to enable the array frame assembly to rotate to at least track the sun from east to west over a fixed primary axis of rotation, and adjustment means to enable the array frame assembly to be adjusted relative to the primary axis of rotation to allow for seasonal changes in the sun's elevation and changes in the sun's declination throughout each day.