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公开(公告)号：US20220260284A1
公开(公告)日：2022-08-18
申请号：US17650210
申请日：2022-02-07
摘要： An air receiver for use in a solar power plant receives sunlight from a plurality of heliostats focused on the air receiver via an aperture of the receiver to heat air in the cavity of the receiver. The heated air is directed out of the receiver via one or more output ports in fluid communication with the cavity. A solar power tower can include one or more receivers (e.g., oriented in different directions) and have outflow conduit(s) in fluid communication with the output ports. The outflow conduit(s) receive heated air from the one or more receivers and direct it toward one or both of a hot thermal storage tank and a heat utilization module (e.g., for use in generating electricity or facilitating an industrial process, such as a chemical reaction).
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公开(公告)号：US20240167729A1
公开(公告)日：2024-05-23
申请号：US18057148
申请日：2022-11-18
IPC分类号： F24S23/70
CPC分类号： F24S23/82 , F24S2023/832
摘要： A heliostat optical panel assembly has a curved optical panel, a curved backing panel spaced from the curved optical panel and multiple spacers interposed between and attached to the curved optical panel and the curved backing panel. The spacers are distributed between the curved optical panel and the curved backing panel in a modular pattern to provide shear stiffness to the optical panel assembly.
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公开(公告)号：US20230236398A1
公开(公告)日：2023-07-27
申请号：US18157386
申请日：2023-01-20
发明人： Steven Edward Schell
CPC分类号： G02B19/0019 , G02B7/183 , G02B19/0042 , G02B26/0816
摘要： A heliostat field layout for a concentrated solar power (CSP) plant includes a plurality of heliostats arranged adjacent each other (e.g., side-by-side) in a first arc spaced from a tower comprising a solar receiver. A second plurality of heliostats are arranged adjacent each other (e.g., side-by-side) in one or more additional arcs spaced from each other and spaced from the first arc, each additional arc spaced from a previous of the additional arcs by a radial distance that defines an aisle, the radial distance between a pair of adj acent arcs being equal to or greater than the radial distance between a previous pair of adjacent arcs in a direction away from the tower. The heliostats are arranged in the arcs in a non-staggered manner.
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4.发明公开公开(公告)号：US20240054599A1
公开(公告)日：2024-02-15
申请号：US17932108
申请日：2022-09-14
CPC分类号： G06T3/0075 , G06T7/60 , G06T7/70 , G06T5/40 , G06V10/25 , G06V10/60 , G06V10/761 , G06T2207/20024 , G06T2207/30204
摘要： A system and method for registering images captured by a camera of heliostats in a heliostat field for use in tracking control of the heliostats is disclosed. The method includes calculating a geographical location of a reflection of the sun on a reflective dome surface of fiducial markers positioned relative to the heliostat field that are in a field of view of the camera, the geographical location calculated based on a location of the sun at a time corresponding to a time-stamp of the captured image, a geographical location and a radius of the reflective dome of the fiducial markers, and a geographical location of the viewing camera. A correct mapping of the fiducial markers in the captured image is identified. Optionally, an affine transform is applied to the captured image via rotation and translation so that pixels in the transformed image for the fiducial markers map to geographical coordinates of the fiducial markers.
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公开(公告)号：US11732928B1
公开(公告)日：2023-08-22
申请号：US17014972
申请日：2020-09-08
发明人： Steven Schell
摘要： A gas receiver configured to heat a working fluid is disclosed. The receiver comprises an aperture, a light absorber, and a pre-heater interposed between the aperture and light absorber. The pre-heater is transparent to visible light and opaque to infrared. The pre-heater in the preferred embodiment comprises quartz in the form of a plurality of quartz plates or quartz tubes, for example, that are oriented substantially parallel to one another. The quartz plates are separated from one another by a gap to permit air to pass into the receiver cavity, while the quartz tubes are hollow to permit air to pass therethrough. The quartz plates or tubes are configured to transmit visible light from the aperture to the light absorber, and to absorb infrared radiation passing from the light absorber toward the aperture. Since the quartz structures absorb infrared, they serve to capture blackbody radiation emitted from the absorber and use that energy to pre-heat air before it passes into the absorber.
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公开(公告)号：US11588425B1
公开(公告)日：2023-02-21
申请号：US16874113
申请日：2020-05-14
发明人： Jason Blair
摘要： A system and method for reducing power consumption and increasing reliability in a solar tracking system is disclosed. The solar tracker comprises a panel, at least one actuator configured to control the orientation of the panel, and a tracking controller. The tracking controller is configured to determine a minimum operating current for the at least one actuator based on a range of motion of the panel, and energize the at least one actuator based on the minimum operating current. The tracking controller determines the minimum operating current based on the range of motion of the panel, specifically the minimum current need to drive the panel through a measured range of motion equal to or substantial similar to the full mechanical range of motion of the panel. Based on the minimum operating current, solar tracker may generate messages to repair or replace an actuator or gearbox, for example.
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公开(公告)号：US20230349594A1
公开(公告)日：2023-11-02
申请号：US18295395
申请日：2023-04-04
IPC分类号： F24S25/13
CPC分类号： F24S25/13
摘要： A lightweight and rigid stand for supporting a heliostat includes multiple legs that extend between a lower end and upper end. A bracket or knuckle couples to an upper end of the legs and can support a heliostat thereon so that the bracket or knuckle is disposed between the upper end of the legs and the heliostat. A dimensional spacing or angular orientation between the legs is maintained by the backet or knuckle and/or bridge portions that extend between linear portions of the legs. Lower ends of the legs can be embedded in a ballast mass.
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公开(公告)号：US11689130B2
公开(公告)日：2023-06-27
申请号：US17446816
申请日：2021-09-02
CPC分类号： H02P9/305 , F01D15/10 , F02C1/02 , F05D2220/32 , F05D2220/76
摘要： A supercritical CO2 turbo-generator system includes multiple turbine generator units, a direct current bus, a plurality of active rectifiers, and a voltage controller. Each turbine generator unit includes a turbine with a supercritical CO2 input and a supercritical CO2 output, a generator with an electrical input and power output, a shaft connecting the turbine and generator, and a speed sensor for sensing shaft speed. The turbine generator units are connected in a cascading series with the input of a first turbine generator unit connected to a heated supercritical CO2 source and the input of each subsequent turbine generator unit is connected to the output of a prior turbine generator unit. The voltage controller monitors the speed sensor of the turbine generator units and varies the load on each generator to control shaft speed. Each active rectifier converts the power output of a generator to direct current, and the power from multiple active rectifiers is combined by the direct current bus.
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公开(公告)号：US20230058254A1
公开(公告)日：2023-02-23
申请号：US17820052
申请日：2022-08-16
摘要： A particle receiver includes an inlet, an outlet and multiple tubes rotatably coupled to the inlet and the outlet. The tubes receive particles via the inlet, the particles passing along a passageway of each of the tubes to the outlet. The tubes receive a solar flux as they rotate to heat the particles passing through the tubes. A heat transfer coefficient of the particles is increased by increased mixing via air flowing in the tubes, fins used to mix the particles or via channels via which the particles pass through that increase turnover and mixing of the particles.
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公开(公告)号：US11554035B2
公开(公告)日：2023-01-17
申请号：US17329959
申请日：2021-05-25
发明人： Alexander Sonn
摘要： A system and method for tracking the sun with a heliostat mirror is disclosed. The solar tracking system comprises: a camera configured to capture high dynamic range images of the sky, a plurality of cameras configured to capture images of the heliostat mirror, and a tracking controller. The images of the heliostat mirror include reflections of the sky. The tracking controller is configured to generate a circumsolar radiance map characterizing the brightness of at least a portion of the sky with the high dynamic range images. During tracking operations, the tracking controller is configured to estimate an orientation of the heliostat mirror; calculate coordinates of the portions of sky in the reflections in the heliostat mirror; estimate brightness levels of portions of sky in the reflections of the heliostat mirror based on the calculated coordinates and the radiance model; determine brightness levels of portions of sky in the reflections of the heliostat mirror based on the images from the plurality of cameras; generate an error measurement characterizing a difference between the brightness level estimated from the radiance model and the brightness level determined from the images of the heliostat mirror; search for an orientation angle of the at least one mirror that minimizes the error measurement; and re-orient the at least one mirror based on the orientation angle that minimizes the error measurement.
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