-
公开(公告)号：US20240275285A1
公开(公告)日：2024-08-15
申请号：US18444954
申请日：2024-02-19
Applicant: Solaredge Technologies Ltd.
Inventor： Meir Adest , Lior Handelsman , Yoav Galin , Amir Fishelov , Guy Sella
CPC classification number: H02M3/1582 , H02J3/18 , H02J3/38 , H02J3/381 , H02M7/44 , H02J2300/26 , H02J2300/30 , H02M1/007 , H02M1/0077 , Y02E10/56
Abstract: A system and method for combining power from DC power sources. Each power source is coupled to a converter. Each converter converts input power to output power by monitoring and maintaining the input power at a maximum power point. Substantially all input power is converted to the output power, and the controlling is performed by allowing output voltage of the converter to vary. The converters are coupled in series. An inverter is connected in parallel with the series connection of the converters and inverts a DC input to the inverter from the converters into an AC output. The inverter maintains the voltage at the inverter input at a desirable voltage by varying the amount of the series current drawn from the converters. The series current and the output power of the converters, determine the output voltage at each converter.
-
公开(公告)号：US12057514B2
公开(公告)日：2024-08-06
申请号：US17321329
申请日：2021-05-14
Applicant: AMPT, LLC
Inventor： Anatoli Ledenev
CPC classification number: H01L31/02008 , H02J1/102 , H02J3/38 , H02J3/381 , H02J3/46 , H02S40/30 , H02J2300/24 , H02M1/0067 , H02M1/0077 , Y02E10/56
Abstract: A high efficiency solar power system combining photovoltaic sources of power (1) can be converted by a base phase DC-DC photovoltaic converter (6) and an altered phase DC-DC photovoltaic converter (8) that have outputs combined through low energy storage combiner circuitry (9). The converters can be synchronously controlled through a synchronous phase control (11) that synchronously operates switches to provide a conversion combined photovoltaic DC output (10). Converters can be provided for individual source conversion or phased operational modes, the latter presenting a combined low photovoltaic energy storage DC-DC photovoltaic converter (15) at string or individual panel levels.
-
3.发明公开公开(公告)号：US20240235209A1
公开(公告)日：2024-07-11
申请号：US18460433
申请日：2023-09-01
Applicant: Generac Power Systems, Inc.
Inventor： Christopher Richard Jones , Alexandre Rudolf Kral
CPC classification number: H02J3/381 , H02J3/38 , H02M1/12 , H02M1/44 , H02M7/537 , H02J3/46 , H02J2300/24 , H02J2300/26 , Y02E10/56
Abstract: Various enhancements to grid-interactive inverters in accordance with embodiments of the invention are disclosed. One embodiment includes input terminals configured to receive a direct current, output terminals configured to provide an alternating output current to the utility grid, a controller, an output current sensor, and a DC-AC inverter stage comprising a plurality of switches controlled by control signals generated by the controller. In addition, the controller is configured to: generate control signals that cause the switches in the DC-AC inverter stage to switch a direct current in a bidirectional manner; measure the alternating output current; perform frequency decomposition of the output current; and generate control signals that cause the switches in the DC-AC inverter stage to switch current in a way that the magnitude of a plurality of unwanted current components is subtracted from the resulting output current.
-
公开(公告)号：US12034087B2
公开(公告)日：2024-07-09
申请号：US17866793
申请日：2022-07-18
Applicant: AMPT, LLC
Inventor： Anatoli Ledenev , Robert M. Porter
IPC: H01L31/02 , G05F1/67 , H02J3/38 , H02J3/46 , H02M3/08 , H02M3/155 , H02M7/44 , H02S40/32 , H02S40/36
CPC classification number: H01L31/02021 , H02J3/38 , H02J3/381 , H02J3/388 , H02J3/46 , H02M3/08 , H02M3/155 , H02M7/44 , G05F1/67 , H02J2300/24 , H02J2300/26 , H02S40/32 , H02S40/36 , Y02E10/56
Abstract: The inventive technology, in certain embodiments, may be generally described as a solar power generation system with a converter, which may potentially include two or more sub-converters, established intermediately of one or more strings of solar panels. Particular embodiments may involve sweet spot operation in order to achieve improvements in efficiency, and bucking of open circuit voltages by the converter in order that more panels may be placed on an individual string or substring, reducing the number of strings required for a given design, and achieving overall system and array manufacture savings.
-
5.发明授权公开(公告)号：US12027867B2
公开(公告)日：2024-07-02
申请号：US17537116
申请日：2021-11-29
Applicant: AMPT, LLC
Inventor： Robert Porter , Anatoli Ledenev
CPC classification number: H02J3/381 , H02J3/00 , H02J3/38 , H02J3/388 , H02J13/00 , H02J2300/26 , H02M1/0077 , Y02E10/56 , Y02E40/70 , Y02P80/20 , Y04S10/123 , Y10S136/293
Abstract: Renewable electrical energy is provided with aspects and circuitry that can harvest maximum power from an alternative electrical energy source (1) such as a string of solar panels (11) for a power grid (10). Aspects include: i) controlling electrical power creation from photovoltaic DC-AC inverter (5), ii) operating photovoltaic DC-AC inverter (5) at maximal efficiency even when MPP would not be, iii) protecting DC-AC inverter (5) so input can vary over a range of insolation and temperature, and iv) providing dynamically reactive capability to react and assure operation, to permit differing components, to achieve code compliant dynamically reactive photovoltaic power control circuitry (41). With previously explained converters, inverter control circuitry (38) or photovoltaic power converter functionality control circuitry (8) configured as inverter sweet spot converter control circuitry (46) can achieve extraordinary efficiencies with substantially power isomorphic photovoltaic capability at 99.2% efficiency or even only wire transmission losses.
-
Patent Agency Ranking
公开(公告)号：US12009665B2
公开(公告)日：2024-06-11
申请号：US17825108
申请日：2022-05-26
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Xiaofeng Yao , Yanzhong Zhang , Guilei Gu
CPC classification number: H02J3/381 , H02S40/30 , H02J2300/24 , Y02E10/56
Abstract: A photovoltaic system, an optimizer, a controller, a computer program product, a computer-readable storage medium, a chip, and a method for adjusting a working state of an optimizer are provided. The photovoltaic system includes a photovoltaic panel and an optimizer. The optimizer includes a controller, a first output port, and a second output port. The controller is configured to detect an electrical signal parameter between the first output port and the second output port. The controller is configured to adjust a working state of the optimizer from a no-output state or a limited-output state to an unlimited-output state when the electrical signal parameter changes. In the photovoltaic system, the working state can be adjusted without using an unlocking apparatus, so that an implementation is simple, and costs are reduced.
-
公开(公告)号：US11973349B2
公开(公告)日：2024-04-30
申请号：US17374297
申请日：2021-07-13
Applicant: SUNGROW POWER SUPPLY CO., LTD.
Inventor： Yanfei Yu , Hua Ni , Zongjun Yang , Shangfang Dai
CPC classification number: H02J3/38 , H01F38/42 , H02J3/381 , H02M3/005 , H02M3/24 , H02M3/335 , H02M7/00 , H02M7/06 , H02M7/217 , H02J2300/24 , Y02E10/56
Abstract: Provided are a device for suppressing potential induced degradation and a system. The device includes a rectification circuit, a non-isolated voltage conversion circuit and at least one capacitor. An input terminal of the rectification circuit is connected to an output terminal of a converter, the rectification circuit is configured to rectify an alternating current outputted by the converter into a direct current, the non-isolated voltage conversion circuit is configured to perform voltage conversion on the direct current outputted by the rectification circuit, and the voltage conversion is boost conversion or voltage reverse conversion. The capacitor is connected in parallel with an output terminal of the direct current, and either a positive electrode or a negative electrode of the capacitor is grounded.
-
公开(公告)号：US11961922B2
公开(公告)日：2024-04-16
申请号：US18312755
申请日：2023-05-05
Applicant: Solaredge Technologies Ltd.
Inventor： Guy Sella , Lior Handelsman , Yoav Galin , Amir Fishelov , Meir Adest
IPC: H01L31/02 , H01R13/514 , H02J1/10 , H02J3/38 , H02J3/46 , H02J7/00 , H02J7/35 , H02M7/44 , H02S40/34
CPC classification number: H01L31/02021 , H01R13/514 , H02J1/102 , H02J3/38 , H02J3/381 , H02J3/388 , H02J3/46 , H02J7/0068 , H02J7/35 , H02M7/44 , H02S40/34 , H02J2300/24 , Y02B10/10 , Y02E10/56 , Y10T29/49117
Abstract: A distributed power harvesting system including multiple direct current (DC) power sources with respective DC outputs adapted for interconnection into an interconnected DC power source output. A converter includes input terminals adapted for coupling to the interconnected DC power source output. A circuit loop sets the voltage and current at the input terminals of the converter according to predetermined criteria. A power conversion portion converts the power received at the input terminals to an output power at the output terminals. A power supplier is coupled to the output terminals. The power supplier includes a control part for maintaining the input to the power supplier at a predetermined value. The control part maintains the input voltage and/or input current to the power supplier at a predetermined value.
-
公开(公告)号：US11848643B2
公开(公告)日：2023-12-19
申请号：US18053405
申请日：2022-11-08
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Il Han Kim , Xiaolin Lu
CPC classification number: H02S50/00 , H02J3/38 , H02J3/381 , H02J3/388 , H02J3/466 , H02S40/32 , H02S40/34 , H02J2300/26 , Y02E10/56
Abstract: A photovoltaic system with an inverter, at least one solar panel for providing electrical power, and electrical wiring for coupling electrical power from the at least one solar panel to the inverter. Also included is a transmitter for transmitting a messaging protocol along the electrical wiring, where the protocol includes a multibit wireline signal. Also included is circuitry for selectively connecting the electrical power from the at least one solar panel along the electrical wiring to the inverter in response to the messaging protocol.
-
公开(公告)号：US20230369851A1
公开(公告)日：2023-11-16
申请号：US18360748
申请日：2023-07-27
Applicant: Tigo Energy, Inc.
Inventor： Shmuel Arditi , Ron Hadar
CPC classification number: H02J1/10 , H02J3/38 , H02J13/00 , H02J13/00007 , H02J3/381 , Y04S10/123 , Y02E10/56 , Y02E40/70 , H02J2300/24 , H02J2300/26
Abstract: A photovoltaic system, including: a plurality of photovoltaic panels having outputs connected in series as a string to provide a string output; a converter coupled to the string to receive the string output as an input and generate a direct current output from the input; a series connection of the string output and the direct current output; and a bus powered at least in part by the series connection of the string output and the direct current output.
-
-
-
-
-
-
-
-
-
Search Results
487
records
(took 0.027 seconds)
