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公开(公告)号：US11594881B2
公开(公告)日：2023-02-28
申请号：US16905068
申请日：2020-06-18
发明人： Meir Adest , Lior Handelsman , Yoav Galin , Amir Fishelov , Guy Sella
摘要： 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.
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公开(公告)号：US20230006434A1
公开(公告)日：2023-01-05
申请号：US17939078
申请日：2022-09-07
发明人： Ilan Yoscovich , Guy Sella , Meir Gazit , Yoav Galin , David Braginsky , Lior Handelsman , Meir Adest , Yakir Loewenstern , Tzachi Glovinsky , Nadav Berkovitch , Ron Neuman , Amir Fishelov
摘要： Methods for arc detection in a system including one or more photovoltaic generators, one or more photovoltaic power devices and a system power device and/or a load connectible to the photovoltaic generators and/or the photovoltaic power devices. The methods may measure voltage, current, and/or power delivered to the load or system power device, and the methods may measure voltage noise or current noise within the photovoltaic system. The methods may periodically, and/or in response to detecting noise, reduce an electrical parameter such as current or voltage in order to extinguish an arc. The methods may compare one or more measurements to one or more thresholds to detect arcing, and upon a comparison indicating that arcing is or was present, an alarm condition may be set.
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公开(公告)号：US11489330B2
公开(公告)日：2022-11-01
申请号：US17344436
申请日：2021-06-10
发明人： Ilan Yoscovich , Guy Sella , Meir Gazit , Yoav Galin , David Braginsky , Lior Handelsman , Meir Adest , Yakir Loewenstern , Tzachi Glovinsky , Nadav Berkovitch , Ron Neuman , Amir Fishelov
摘要： Methods for arc detection in a system including one or more photovoltaic generators, one or more photovoltaic power devices and a system power device and/or a load connectible to the photovoltaic generators and/or the photovoltaic power devices. The methods may measure voltage, current, and/or power delivered to the load or system power device, and the methods may measure voltage noise or current noise within the photovoltaic system. The methods may periodically, and/or in response to detecting noise, reduce an electrical parameter such as current or voltage in order to extinguish an arc. The methods may compare one or more measurements to one or more thresholds to detect arcing, and upon a comparison indicating that arcing is or was present, an alarm condition may be set.
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公开(公告)号：US11309832B2
公开(公告)日：2022-04-19
申请号：US15952037
申请日：2018-04-12
发明人： Meir Adest , Lior Handelsman , Yoav Galin , Amir Fishelov , Guy Sella , Meir Gazit , Ilan Yoscovich , Yaron Binder
摘要： A photovoltaic panel with multiple photovoltaic sub-strings including serially-connected photovoltaic cells and having direct current (DC) outputs adapted for interconnection in parallel into a parallel-connected DC power source. A direct current (DC) power converter including input terminals and output terminals is adapted for coupling to the parallel-connected DC power source and for converting an input power received at the input terminals to an output power at the output terminals. The direct current (DC) power converter optionally has a control loop configured to set the input power received at the input terminals according to a previously determined criterion. The control loop may be adapted to receive a feedback signal from the input terminals for maximizing the input power. A bypass diode is typically connected in shunt across the input terminals of the converter. The bypass diode functions by passing current during a failure of any of the sub-strings and/or a partial shading of the sub-strings. The bypass diode may be a single bypass diode connected across the parallel-connected DC power source. The DC power converter may convert the input power at high current to the output power at a lower current. The output terminals may be connectible with wire cables to a load, and the DC power converter is configured to reduce energy loss through the wire cables to the load.
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公开(公告)号：US11043820B2
公开(公告)日：2021-06-22
申请号：US16861893
申请日：2020-04-29
发明人： Meir Adest , Lior Handelsman , Yoav Galin , Amir Fishelov , Guy Sella
摘要： A system and method for digital management and control of power conversion from battery cells. The system utilizes a power management and conversion module that uses a CPU to maintain a high power conversion efficiency over a wide range of loads and to manage charge and discharge operation of the battery cells. The power management and conversion module includes the CPU, a current sense unit, a charge/discharge unit, a DC-to-DC conversion unit, a battery protection unit, a fuel gauge and an internal DC regulation unit. Through intelligent power conversion and charge/discharge operations, a given battery type is given the ability to emulate other battery types by conversion of the output voltage of the battery and adaptation of the charging scheme to suit the battery.
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公开(公告)号：US11002774B2
公开(公告)日：2021-05-11
申请号：US16823406
申请日：2020-03-19
发明人： Meir Adest , Lior Handelsman , Yoav Galin , Amir Fishelov , Guy Sella
IPC分类号： G01R21/133 , H02J3/38 , G01D4/00 , G01R22/06 , H02J13/00
摘要： A system includes a control circuit and a computer. The control circuit includes a control circuit configured to receive data from at least one solar panel, convert the received data according to a communication protocol, and forward the converted data via the communication protocol. The computer includes software that, when executed by the computer, causes the computer to receive, via the communication protocol, the converted data, detect, based on the received converted data, a problem in the at least one solar panel, and output, to a display and based on the detected problem, a status of the at least one solar panel corresponding to a time at which the data was collected.
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公开(公告)号：US10969412B2
公开(公告)日：2021-04-06
申请号：US15834929
申请日：2017-12-07
发明人： Guy Sella , Meir Adest , Meir Gazit , Lior Handelsman , Ilan Yoscovich , Amir Fishelov , Yaron Binder , Yoav Galin
摘要： A system for generation of electrical power including an inverter connected to a photovoltaic source including a theft prevention and detection feature. A first memory is permanently attached to the photovoltaic source. The first memory is configured to store a first code. A second memory is attached to the inverter. The second memory configured to store a second code. During manufacture or installation of the system, the first code is stored in the first memory attached to the photovoltaic source. The second code based on the first code is stored in the second memory. Prior to operation of the inverter, the first code is compared to the second code and based on the comparison; the generation of the electrical power is enabled or disabled.
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公开(公告)号：US20200217877A1
公开(公告)日：2020-07-09
申请号：US16823406
申请日：2020-03-19
发明人： Meir Adest , Lior Handelsman , Yoav Galin , Amir Fishelov , Guy Sella
IPC分类号： G01R21/133 , G01D4/00 , G01R22/06
摘要： A system includes a control circuit and a computer. The control circuit includes a control circuit configured to receive data from at least one solar panel, convert the received data according to a communication protocol, and forward the converted data via the communication protocol. The computer includes software that, when executed by the computer, causes the computer to receive, via the communication protocol, the converted data, detect, based on the received converted data, a problem in the at least one solar panel, and output, to a display and based on the detected problem, a status of the at least one solar panel corresponding to a time at which the data was collected.
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公开(公告)号：US10673253B2
公开(公告)日：2020-06-02
申请号：US16254014
申请日：2019-01-22
发明人： Meir Adest , Lior Handelsman , Yoav Galin , Amir Fishelov , Guy Sella
IPC分类号： H02J7/00
摘要： A system and method for digital management and control of power conversion from battery cells. The system utilizes a power management and conversion module that uses a CPU to maintain a high power conversion efficiency over a wide range of loads and to manage charge and discharge operation of the battery cells. The power management and conversion module includes the CPU, a current sense unit, a charge/discharge unit, a DC-to-DC conversion unit, a battery protection unit, a fuel gauge and an internal DC regulation unit. Through intelligent power conversion and charge/discharge operations, a given battery type is given the ability to emulate other battery types by conversion of the output voltage of the battery and adaptation of the charging scheme to suit the battery.
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公开(公告)号：US10673229B2
公开(公告)日：2020-06-02
申请号：US15819903
申请日：2017-11-21
发明人： Ilan Yoscovich , Guy Sella , Meir Gazit , Yoav Galin , David Braginsky , Lior Handelsman , Meir Adest , Yakir Loewenstern , Tzachi Glovinsky , Nadav Berkovitch , Ron Neuman , Amir Fishelov
摘要： Methods for arc detection in a system including one or more photovoltaic generators, one or more photovoltaic power devices and a system power device and/or a load connectible to the photovoltaic generators and/or the photovoltaic power devices. The methods may measure voltage, current, and/or power delivered to the load or system power device, and the methods may measure voltage noise or current noise within the photovoltaic system. The methods may periodically, and/or in response to detecting noise, reduce an electrical parameter such as current or voltage in order to extinguish an arc. The methods may compare one or more measurements to one or more thresholds to detect arcing, and upon a comparison indicating that arcing is or was present, an alarm condition may be set.
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