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公开(公告)号：US20240339960A1
公开(公告)日：2024-10-10
申请号：US18626537
申请日：2024-04-04
申请人： Nextracker LLC
IPC分类号： H02S20/32
CPC分类号： H02S20/32
摘要： A coupling for use with a solar tracker includes an elongate body defining opposed top and bottom surfaces, the bottom surface defining a pair of protuberances disposed in spaced relation along a length of the elongate body and defining a gap therebetween, each of the pair of protuberances including a tab disposed thereon adjacent the gap, wherein the gap is configured to receive a torque tube such that an inner surface of the gap and the tabs of each of the pair of protuberances abut a portion of the torque tube, wherein each tab of the pair of protuberances includes a bore defined therethrough that is configured to receive a fastener to couple the elongate body to a torque tube.
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公开(公告)号：US20240297613A1
公开(公告)日：2024-09-05
申请号：US18661302
申请日：2024-05-10
申请人： Nextracker LLC
摘要： A solar tracker system including a tracker apparatus including a plurality of solar modules, each of the solar modules being spatially configured to face in a normal manner in an on sun position in an incident direction of electromagnetic radiation derived from the sun, wherein the solar modules include a plurality of PV strings, and a tracker controller. The tracker controller includes a processor, a memory, a power supply configured to provide power to the tracker controller, a plurality of power inputs configured to receive a plurality of currents from the plurality of PV strings, a current sensing unit configured to individually monitor the plurality of currents, a DC-DC power converter configured to receive the plurality of power inputs powered from the plurality of PV strings to supply power to the power supply, and a motor controller, wherein the tracker controller is configured to track the sun position.
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公开(公告)号：US20240195351A1
公开(公告)日：2024-06-13
申请号：US18588584
申请日：2024-02-27
申请人： Nextracker LLC
CPC分类号： H02S30/10 , F16M11/2021 , H02S20/32
摘要： A pier for a solar tracking system includes a bearing housing assembly, a frame, the frame defining an A-profile having a pair of legs and a crown at a center portion thereof, and a mounting bracket, the mounting bracket coupled to a portion of the crown of the frame at a first portion thereof and coupled to a portion of the bearing housing assembly at a second portion thereof.
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公开(公告)号：US12009776B2
公开(公告)日：2024-06-11
申请号：US17404577
申请日：2021-08-17
申请人： Nextracker Inc.
摘要： A solar tracker bearing and a solar tracker incorporating the bearing, the bearing including at least one rotatable part, the rotatable part including a notch for receiving a torque tube, a slot, formed in the rotatable part and extending below the notch, the slot defining an arc having multiple radii, at least one engagement member configured to be received in the slot, and at least one base configured to secure the engagement member in the slot and to secure the bearing to a pier.
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公开(公告)号：US20240154568A1
公开(公告)日：2024-05-09
申请号：US18415294
申请日：2024-01-17
申请人： Nextracker LLC
IPC分类号： H02S20/32 , F24S30/425 , G05D3/10
CPC分类号： H02S20/32 , F24S30/425 , G05D3/105 , F24S2050/25
摘要： Solar array (1) comprising solar modules (3) distributed in rows (10), each solar module comprising solar collector (5) carried by a single-axis solar tracker (4), a reference solar power plant (2) comprising a central reference solar module and at least one secondary reference solar module, and a piloting unit (7) adapted for:
piloting the angular orientation of the central reference module according to a central reference orientation setpoint corresponding to an initial orientation setpoint,
piloting the orientation of each secondary reference module according to a secondary reference orientation setpoint corresponding to the initial orientation setpoint shifted by a predefined offset angle;
receiving an energy production value from each reference module;
piloting the orientation of the modules, except for the reference modules, by applying the reference orientation setpoint associated to the reference module having the highest production value.-
6.发明公开公开(公告)号：US20240072720A1
公开(公告)日：2024-02-29
申请号：US18454599
申请日：2023-08-23
申请人： Nextracker LLC
发明人： Tushar Guha , Abhimanyu Sable , Asher Dakarapu , Jacob Mark Morin
IPC分类号： H02S20/32 , F24S30/425
CPC分类号： H02S20/32 , F24S30/425 , F24S2030/19
摘要： A solar tracking system includes a first solar tracking row and a second solar tracking row, each of the first and second solar tracking rows including a plurality of support piers, a torque tube rotatably supported on the plurality of support piers, a plurality of solar modules coupled to the torque tube, and at least one damper coupled to the plurality of support piers at a first end and coupled to a portion of the torque tube at a second, opposite end, and a connecting rod coupled to a portion of each torque tube of the first and second solar trackers such that rotation of the torque tube of the first solar tracker row effectuates movement of the connecting rod, which in turn, effectuates rotation of the torque tube of the second solar tracking row.
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公开(公告)号：US20240014751A1
公开(公告)日：2024-01-11
申请号：US18349577
申请日：2023-07-10
申请人： NEXTRACKER LLC
发明人： Matthias Preindl , Yang Liu , Alexander W. AU
IPC分类号： H02M7/5395 , H02J3/38 , H02M1/12
CPC分类号： H02M7/5395 , H02J3/381 , H02M1/123 , H02J2300/26
摘要： A parallel inverter system for solar tracker systems minimizes circulating currents, mitigates ripple, and increases efficiency. The parallel inverter system includes inverters coupled together in parallel, a common DC bus coupled between a DC load and inputs of the inverters, a common AC bus coupled between outputs of the inverters and an electrical power grid, and a common-mode filter coupled to the output of each of the inverters. The parallel inverter system also includes controllers coupled to the inverters, respectively, the controllers configured to generate interleaved pulse width modulation (PWM) signals, respectively. The PWM signals are synchronized with each other. The PWM signals may be synchronized with each other via the EtherCAT protocol.
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公开(公告)号：US20230283226A1
公开(公告)日：2023-09-07
申请号：US18196301
申请日：2023-05-11
申请人： Nextracker LLC
发明人： David E. Kresse , Samuel Heller
IPC分类号： H02S20/32 , F16H57/038 , F16H37/04 , H02S20/10 , F16H48/08
CPC分类号： H02S20/32 , F16H57/038 , F16H37/04 , H02S20/10 , F16H48/08 , F16H2037/049 , F16H2048/082
摘要： A solar tracking system is provided and includes a solar array, a support structure configured to support the solar array, a base configured to rotatably support the support structure, and an articulation system configured to articulate the support structure relative to the base. The articulation system includes a gearbox that is coupled to the support structure and an actuator that is configured to extend and retract. The actuator includes a first end portion and a second, opposite end portion, wherein the first end portion is rotatably coupled to the base and the second end portion is coupled to the gearbox. Extension of the actuator causes the support structure to rotate about the base in a first direction and retraction of the actuator causes the support structure to rotate about the based in a second, opposite direction.
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公开(公告)号：US11722000B2
公开(公告)日：2023-08-08
申请号：US17437037
申请日：2020-02-25
申请人： NEXTracker Inc.
IPC分类号： H02M3/158 , H02M3/06 , G05F1/70 , G05F1/56 , G05F1/59 , H02M1/088 , H02J7/35 , H02S20/32 , H02P27/08 , H02S40/38 , H02S40/32 , G05F1/595 , H02M1/00 , H02M3/00 , H02M3/335
CPC分类号： H02J7/35 , H02M3/1582 , H02S20/32 , G05F1/56 , G05F1/59 , G05F1/595 , G05F1/70 , H02M1/0043 , H02M1/088 , H02M3/01 , H02M3/06 , H02M3/158 , H02M3/33571 , H02P27/08 , H02S40/32 , H02S40/38
摘要： A power converter converts a medium-voltage output from a solar module to an appropriate voltage to power a solar tracker system. The power converter includes a voltage divider having at least two legs, a first semiconductor switch subassembly coupled in parallel with a first leg of the voltage divider, and a second semiconductor switch subassembly coupled in parallel with a second leg of the voltage divider. The power converter may be a unidirectional or a bidirectional power converter. In implementations, the signals for driving the semiconductor switches of the first and second semiconductor switch subassemblies may be shifted out of phase from each other. In implementations, if the bus voltages to the semiconductor switches are not balanced, the pulse width of the driving signal of the semiconductor switch supplied with the higher bus voltage is decreased for at least one cycle.
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公开(公告)号：US20230246589A1
公开(公告)日：2023-08-03
申请号：US18093590
申请日：2023-01-05
申请人： Nextracker LLC
摘要： A coupling system for use with a solar tracker includes a support rail defining a channel for receipt of a solar module therein, the support rail including an aperture defined therein that is in open communication with the channel and a clamp assembly selectively coupled to the support rail, a first portion of the clamp assembly configured to receive a portion of a torque tube therein and a second portion of the clamp assembly configured to selectively extend through the aperture of the support rail when the clamp assembly is transitioned from a first, unlocked position, to a second, locked position.
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