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公开(公告)号：US11557916B2
公开(公告)日：2023-01-17
申请号：US17542707
申请日：2021-12-06
发明人： Itay Sherman , Elieser Mach , Neri Naveh
摘要： A wireless photovoltaic power system is provided. The wireless photovoltaic power system includes photovoltaic cell units that provide power. Each of the photovoltaic cell units include a photovoltaic cell. The wireless photovoltaic power system includes a first wireless power device that receives the power. The first wireless power device includes a coil that provides a magnetic field to wirelessly transfer the power to a second wireless power device. The first wireless power device provides a combinational implementation of a maximum power point tracking of the photovoltaic cell units and a power control of a load.
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公开(公告)号：US11524599B2
公开(公告)日：2022-12-13
申请号：US16815516
申请日：2020-03-11
发明人： Makoto Ogawa
摘要： A control apparatus comprises: a first acquisition unit configured to acquire information indicating charging and discharging performance of an electric power device and environmental information on the electric power device; a second acquisition unit configured to acquire information indicating a characteristic of operation of charging and discharging the electric power device; a correction unit configured to correct the information indicating the charging and discharging performance of the electric power device on the basis of the environmental information; and a control unit configured to control the operation of charging and discharging the electric power device according to a management plan, the management plan being based on the information indicating the charging and discharging performance corrected by the correction unit and the information indicating the characteristic of the operation of charging and discharging the electric power device.
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公开(公告)号：US11515709B2
公开(公告)日：2022-11-29
申请号：US16889520
申请日：2020-06-01
发明人： Xiaolin Mao , Heping Dai , Dianbo Fu , Huibin Zhu
摘要： System, device and method for exporting power are provided including at least one AC optimizer with plurality of DC inputs each connecting with respective one of plurality of DC sources, and independent maximum power point tracking (MPPT) performed for each respective DC source to extract power from each DC source for output and coupling to AC grid. When multiple AC optimizers are employed, with each AC optimizer having multiple DC inputs, each DC input can be connected to PV module with independent MPPT function. Since, each AC optimizer can serve multiple PV modules, significant cost saving and efficiencies can be achieved. Optionally, on PV sub-module level, each of the multiple DC inputs can be used as an independent MPPT channel for a PV sub-module cell string.
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公开(公告)号：US11382193B1
公开(公告)日：2022-07-05
申请号：US16869325
申请日：2020-05-07
发明人： Neal R. Verfuerth
IPC分类号： H05B45/10 , H05B47/105 , G05F1/67 , F21V23/00 , F21Y105/10 , F21Y115/10
摘要： A light fixture and a lighting system including the light fixture is disclosed. The light fixture can include a first light emitting diode (LED) on a printed circuit board (PCB) sized and configured to receive direct current power directly from a photovoltaic (PV) panel and sized to accommodate a maximum voltage output from the PV panel. The lighting system can include the PV panel and the light fixture with the first light emitting diode (LED) on the PCB.
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公开(公告)号：US11334104B2
公开(公告)日：2022-05-17
申请号：US16899107
申请日：2020-06-11
发明人： Meir Adest , Ilan Yoscovich , Yoav Galin , Elad Sity
摘要： Controlling a power converter circuit for a direct current (DC) power source is disclosed. The power converter may be operative to convert input power received from the DC power source to an output power and to perform maximum power point tracking of the power source. The power converter is adapted to provide the output power to a load that also performs maximum power point tracking.
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公开(公告)号：US20220147091A1
公开(公告)日：2022-05-12
申请号：US17601921
申请日：2020-05-04
申请人： NEXTracker Inc.
发明人： Yang Liu , Alexander W. AU , Fei Gu
摘要： Solar power systems and methods utilize DC power transmission and centralized power inversion. The solar power systems include a photovoltaic (PV) bus system and a fixed bus system. The PV system utilizes a control mode handoff control method, which includes determining that a local maximum power point tracking (MPPT) control is enabled; in response to determining that the local MPPT control is enabled, starting an MPPT mode timer; performing local MPPT; determining that the MPPT mode timer is greater than a predetermined period; and, in response to determining that the MPPT mode timer is greater than a predetermined period, handing off MPPT control to the next MPPT controller. The distributed MPPT control method may include sequential MPPT control, adaptive ΔV MPPT control, and/or power limiting control. The fixed bus system includes PV string-level MPPT controllers and a fixed DC input central inverter or multiple fixed DC modular inverters.
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公开(公告)号：US20220107661A1
公开(公告)日：2022-04-07
申请号：US17200017
申请日：2021-03-12
发明人： Chisung BAE , Hyungmin GI , Yeohoon YOON , Yoonmyung LEE
摘要： An apparatus and method for tracking maximum power are disclosed. The apparatus is configured to track a maximum power at a certain node of an electronic circuit, adjust an impedance of the electronic circuit such that power at the node is maximal, and adjust an impedance of the electronic circuit by comparing power at two points in time to increase power. The apparatus for tracking a maximum power, includes a charge sharing capacitor connected to an initial capacitor in parallel, a first switch disposed between the initial capacitor and an energy harvesting power supply, a second switch disposed between the initial capacitor and the charge sharing capacitor, a third switch disposed between the energy harvesting power supply and a comparator, and a switched-capacitor power converting circuit configured to control the initial capacitor.
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8.发明申请公开(公告)号：US20220102983A1
公开(公告)日：2022-03-31
申请号：US17542222
申请日：2021-12-03
申请人： Optivolt Labs, Inc.
发明人： Linda Irish
摘要： A system for balancing voltages in solar substrings in a first solar panel includes an inductive balancer circuit. The inductive balancer circuit includes a first power level pair and a second power level pair each coupled to the solar substring, and including: a pair of switches arranged in series; a pair of capacitors arranged in series and connected in parallel to the first pair of switches; and an inductor arranged between the first pair of switches and the first pair of capacitors. The system further includes a controller coupled to the inductive balancer circuit and configured to: oscillate states of the pair of switches at a duty cycle; balance voltages across the first power level pair and the second power level pair; and generate a total voltage output that is a multiple of a nominal operating voltage of a most-illuminated solar substring.
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9.发明申请公开(公告)号：US20220102981A1
公开(公告)日：2022-03-31
申请号：US17484615
申请日：2021-09-24
申请人： Optivolt Labs, Inc.
发明人： Linda Irish
摘要： A system for balancing voltages in solar substrings in a first solar panel includes an inductive balancer circuit. The inductive balancer circuit includes a first power level pair and a second power level pair each coupled to the solar substring, and including: a pair of switches arranged in series; a pair of capacitors arranged in series and connected in parallel to the first pair of switches; and an inductor arranged between the first pair of switches and the first pair of capacitors. The system further includes a controller coupled to the inductive balancer circuit and configured to: oscillate states of the pair of switches at a duty cycle; balance voltages across the first power level pair and the second power level pair; and generate a total voltage output that is a multiple of a nominal operating voltage of a most-illuminated solar substring.
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公开(公告)号：US11249502B2
公开(公告)日：2022-02-15
申请号：US16338702
申请日：2016-10-03
申请人： IKS CO., LTD. , JGC CORPORATION
发明人： Shinji Takahashi , Go Iritani , Takashi Imai
IPC分类号： G05F1/67
摘要： Provided are a power control device and control method employed therein. The power control device is provided with: a storage battery connected between the solar cell and the power conditioner; a converter, which is disposed between the storage battery and the solar cell, and which charges the storage battery with output power of the solar cell; and a control unit which controls the converter such that the converter charges the storage battery with differential power between the output power of the solar cell and the output power of the power conditioner in the cases where it is determined that the output of the solar cell will be larger than the outputtable power of the power conditioner.
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