公开(公告)号：US20240348205A1

公开(公告)日：2024-10-17

申请号：US18642041

申请日：2024-04-22

申请人： Tigo Energy, Inc.

发明人： Ron Hadar ,  Shmuel Arditi

IPC分类号： H02S50/10 ,  H01L31/02 ,  H01L31/052 ,  H02S40/32 ,  H02S40/34 ,  H02S50/00 ,  H02S50/15

CPC分类号： H02S50/10 ,  H01L31/02021 ,  H01L31/052 ,  H02S40/32 ,  H02S40/34 ,  H02S50/00 ,  H02S50/15 ,  Y02E10/50

摘要： Systems and methods for automatically or remotely rendering a solar array safe during an emergency or maintenance. A watchdog unit is disclosed for monitoring a signal from a central controller. If the signal is lost, interrupted, or becomes irregular, or if a shutdown signal is received, then the watchdog unit can shut down one or more solar modules. Shutting down a solar module can mean disconnecting it from a power bus of the solar array or lowering the solar module voltage to a safe level.

公开(公告)号：US12119652B2

公开(公告)日：2024-10-15

申请号：US18265249

申请日：2020-12-22

申请人： E2Z CO., LTD.

发明人： Ki Taek Song ,  Cheol Song Lee ,  Jun Woo Kim

IPC分类号： H02J3/28 ,  H02S50/10

CPC分类号： H02J3/28 ,  H02S50/10 ,  H02J2300/24

摘要： Proposed is a solar power equalization system, more particularly, a solar power equalization system, wherein connection of an output-reduced string is switched to a power compensation device for fast charging, and after fast charging, compensation for output is performed, thereby minimizing the influence of the reduction in output of a string on the total output and increasing power generation efficiency.

公开(公告)号：US20240313521A1

公开(公告)日：2024-09-19

申请号：US18422579

申请日：2024-01-25

申请人： DCBEL INC.

发明人： Cedric SOMERS ,  Marc-André FORGET

IPC分类号： H02H1/00 ,  H02H3/02 ,  H02S50/10

CPC分类号： H02H1/0015 ,  H02H3/025 ,  H02S50/10

摘要： The present disclosure provides a system, apparatus and method for providing rapid shutdown for photovoltaic power systems and provides a system, apparatus and method for providing arc sensing for photovoltaic power systems. An AC current can be put on the DC bus to control PV panel shutdown. Local mean decomposition can be used to sense arcing on the DC bus.

公开(公告)号：US12088249B2

公开(公告)日：2024-09-10

申请号：US17746040

申请日：2022-05-17

申请人： SMA Solar Technology AG

发明人： Edwin Kiel

IPC分类号： H02S50/10 ,  H02S40/32

CPC分类号： H02S50/10 ,  H02S40/32

摘要： A method and associated system for determining an operating parameter of a PV installation having a plurality of PV modules is disclosed. The PV modules each include a shutdown apparatus connected to a transmission apparatus of the PV installation and has a feed-in operation and a shutdown operation. At least one PV module is equipped with a power-optimizing device which is configured to set an operating point of the PV module in an optimizing operation. The method includes determining a first total electrical power of the PV modules in a non-optimizing operation of the at least one power-optimizing device and in the feed-in operation of the shutdown apparatuses, and determining a second total electrical power of the PV modules in the optimizing operation of all the power-optimizing devices and in the feed-in operation of the shutdown apparatuses. The method also includes determining the operating parameter using a difference between the determined first total electrical power and the determined second total electrical power.

公开(公告)号：US12081168B2

公开(公告)日：2024-09-03

申请号：US17824324

申请日：2022-05-25

申请人： Maxeon Solar Pte. Ltd.

发明人： Katherine Han ,  Jack Stewart ,  Hai-Yue Han

IPC分类号： H02S50/10 ,  G01R31/08 ,  G01R31/11 ,  H02S40/34

CPC分类号： H02S50/10 ,  G01R31/086 ,  G01R31/11 ,  H02S40/34

摘要： Testing to detect intermittent electrical pathways is described. Applied currents may be reversed to fully test all components of a workpiece. Various testing methodologies may be employed. These methodologies may include Time Domain Reflectometry (TDR), mechanical agitation, dark current/voltage testing, (dark IV), i.e., electrical testing of a workpiece using applied electricity, and thermographic imaging, e.g., infra-red thermal imaging. The sensed voltage during agitation may be compared to a benchmark voltage to determine whether or not an intermittent failure exists.

公开(公告)号：US20240291429A1

公开(公告)日：2024-08-29

申请号：US18401803

申请日：2024-01-02

申请人： Solaredge Technologies Ltd.

发明人： Yury Kosharovsky ,  Sharon Haver ,  Yaron Binder ,  Lior Handelsman

IPC分类号： H02S50/10 ,  G01R19/165 ,  G06F11/32 ,  H02S50/00

CPC分类号： H02S50/10 ,  G01R19/16528 ,  G01R19/16538 ,  G06F11/327 ,  H02S50/00 ,  Y02E10/50 ,  Y04S10/52

摘要： A fault identification may be triggered by a component of a power generation system (PGS), such as a hardware component, a controller of a hardware component, a device of the PGS, a computer connected to the PGS, a computer configured to monitor the PGS, and/or the like. The fault identification may be the result of a failure of a component of the PGS, a future failure of a component of the PGS, a routine maintenance of the PGS, and/or the like. The fault is converted to a notification on a user interface using a mapping of faults, root-causes, notification rules, and/or the like. The conversion may use one or more lookup tables and/or formulas for determining the impact of the fault on the PGS, and/or the like.

公开(公告)号：US20240290900A1

公开(公告)日：2024-08-29

申请号：US18650924

申请日：2024-04-30

申请人： Ohio University

发明人： John Adams Staser

IPC分类号： H01L31/055 ,  H01L31/028 ,  H01L31/0352 ,  H02S50/10

CPC分类号： H01L31/055 ,  H01L31/028 ,  H01L31/035218 ,  H02S50/10

摘要： A photoelectrode (12) for use in a photocell (10) comprises a graphene substrate (22) functionalized with carbon quantum dots (CQDs) (20). A photocell (10) comprises a photoelectrode (12), a counter electrode (14), and an electrolyte (26). The electrolyte (26) may be a solid polymer electrolyte. The photocell (10) may be an electrochemical UV sensor. A method for sensing UV radiation comprises quantifying a power density of UV radiation using an electrochemical UV (10) sensor comprising CQDs (20) as a photoactive material. The CQDs (20) may be nitrogen-doped CQDs.

公开(公告)号：US20240275332A1

公开(公告)日：2024-08-15

申请号：US18637455

申请日：2024-04-17

申请人： KYOCERA CORPORATION

发明人： Koichiro NIIRA ,  Shinsuke UCHIDA ,  Takuya KUROSE ,  Shinji YADA ,  Kyosuke FUJIWARA ,  Hidetaka TAKATO ,  Katsuhiko SHIRASAWA ,  Yuji INO

IPC分类号： H02S50/10 ,  H02S40/40

CPC分类号： H02S50/10 ,  H02S40/40

摘要： An apparatus for predicting useful life of a photovoltaic module includes an input and an output. The input receives first information indicating an amount of hygrothermal stress that a photovoltaic module undergoes from a start until an end of a period during which the photovoltaic module outputs predetermined electric power. The input further receives second information indicating an amount of hygrothermal stress that the photovoltaic module undergoes per a predetermined time in a field where the photovoltaic module is deployed. The second information is generated based on information about daily maximum temperatures of the photovoltaic module in the field where the photovoltaic module is deployed. The output outputs result information about a predicted period during which the photovoltaic module is expected to output the predetermined electric power when the photovoltaic module is deployed in the field.

公开(公告)号：US20240258969A1

公开(公告)日：2024-08-01

申请号：US18560908

申请日：2022-05-30

申请人： Sungrow Power Supply Co., Ltd.

发明人： Yanfei Yu ,  Liu Su ,  Fenglei Wu ,  Xiaoxun Li

IPC分类号： H02S50/10 ,  G01R13/00 ,  H02J3/00 ,  H02J3/38

CPC分类号： H02S50/10 ,  G01R13/00 ,  H02J3/0012 ,  H02J3/38 ,  H02J2300/24

摘要： An inverter and a method for identifying a fault on an alternating current side of a photovoltaic system are provided. A controller records a waveform of a preset parameter of the photovoltaic system, and then transmits the recorded waveform to an external device. The external device that performs relatively excellently in data storage and processing stores the waveform and performs subsequent processing, to accurately recognize the fault on the alternating current side of the inverter. Further, the fine waveform can be seen from the external device, so that the accuracy of system monitoring is greatly improved. Moreover, the external device analyzes the waveform and generates a control instruction to accurately control the inverter due to advantages of storage capacity, big data, and computing power. In addition, system performance can be optimized in cooperation with a local control unit.

公开(公告)号：US20240258967A1

公开(公告)日：2024-08-01

申请号：US18293232

申请日：2021-12-01

申请人： Hangzhou Lianxintong Semiconductor Co.,Ltd.

发明人： HAO-SHUN CHANG ,  HSIN-HSIEN LI

IPC分类号： H02S50/10

CPC分类号： H02S50/10

摘要： An installation test circuit for a photovoltaic (PV) system with rapid shutdown includes a voltage generator, which is coupled to a solar panel in the PV system, and generates a first output voltage and a second output voltage according to a first control signal, a second control signal and a voltage source outputted by the solar panel. A voltage difference between the first output voltage and the second output voltage is less than or equal to the voltage source. The first control signal and the second control signal control the voltage generator to determine the first output voltage and the second output voltage. A test output voltage can be generated for solar panel using a minimum number of circuit components, ranging from 0.6V to 1V. This makes it easier to determine the correct installation of the photovoltaic system by measuring a lower output voltage compared to existing technologies.