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公开(公告)号：US20230170842A1
公开(公告)日：2023-06-01
申请号：US18160163
申请日：2023-01-26
发明人： Song Wan , Qinwei Liu , Wuben Sun , Yanzhong Zhang , Kai Liu
IPC分类号： H02S20/32 , H02S40/12 , H02S40/30 , G06V10/764 , G06V10/774
CPC分类号： H02S20/32 , H02S40/12 , H02S40/30 , G06V10/764 , G06V10/774
摘要： An image/video capture apparatus is provided, to capture image data of a photovoltaic panel (101) and surroundings, and a controller (502) recognizes a category corresponding to the image data, and generates different instructions to control rotation of a photovoltaic tracker (102), to remove dust or snow accumulating on the photovoltaic panel (101). This does not need continuous heating, but is simple and efficient, saves electric energy, and resolves a technical problem that a conventional snow removal method of heating has low efficiency and wastes electric energy. In addition, a corresponding controller (1200) is further provided.
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公开(公告)号：US12021390B2
公开(公告)日：2024-06-25
申请号：US18145830
申请日：2022-12-22
发明人： Min Liu , Shuchao Wang , Yao Chang , Song Wan
IPC分类号： H02J3/46
CPC分类号： H02J3/466 , H02J2300/26
摘要： This application discloses a photovoltaic station and a power coordination method for a photovoltaic station. Sample inverters are disposed in arrays requiring power adjustment in the photovoltaic station. Real-time active power of sample inverters in each array is obtained. Then, an available active capacity and an available reactive capacity of the array and available active capacities and available reactive capacities of all the arrays requiring power adjustment are obtained based on the real-time active power of the sample inverters. Finally, active power and reactive power of the photovoltaic station are separately allocated to the N arrays based on the available active capacities and the available reactive capacities respectively corresponding to the N arrays. Because the sample inverters come from the arrays requiring power adjustment, differences between inverters and differences between the arrays can be fully exploited, and the available active capacities of the arrays can be more accurately obtained by using the sample inverters. Therefore, a more accurate available power capacity of the photovoltaic station is obtained by using relatively accurate available active capacities.
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3.发明公开公开(公告)号：US20230231518A1
公开(公告)日：2023-07-20
申请号：US18186022
申请日：2023-03-17
申请人： Huawei Digital Power Technologies Co., Ltd. , SPIC Qinghai Photovoltaic Industry Innovation Center Co.,Ltd.
发明人： Jianqiang Wang , Yuandong Meng , Song Wan , Yanzhong Zhang , Feng Chong , Hualong Fan , Jiajia He , Shaopan Hou , Jie Zhang
IPC分类号： H02S50/15
CPC分类号： H02S50/15
摘要： A method and an apparatus (400) for performing fault detection, are provided includes: controlling, by a power station management system in a preset photovoltaic module order by using an inverter connected to a current to-be-detected photovoltaic module, the current to-be-detected photovoltaic module to be in a target status, and when determining that the current to-be-detected photovoltaic module is in the target status, controlling a mobile image capturing terminal to collect image data of the current to-be-detected photovoltaic module (S201), where the image data is used to detect a fault status of the current to-be-detected photovoltaic module; and when determining that the mobile image capturing terminal obtains the image data of the current to-be-detected photovoltaic module through collection, continuing, by the power station management system, to control, in the preset photovoltaic module order by using an inverter connected to a next to-be-detected photovoltaic module.
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公开(公告)号：US11799419B2
公开(公告)日：2023-10-24
申请号：US17533614
申请日：2021-11-23
发明人： Jianqiang Wang , Song Wan , Yanzhong Zhang , Yongbing Gao
摘要： In a detection condition determining method, a control center obtains a working parameter value of a target photovoltaic device in a first time length closest to a current time point, where the working parameter value of the target photovoltaic device may be provided for the control center by a photovoltaic inverter coupled to the target photovoltaic device. The control center detects the target photovoltaic device in response to the control center determining, based on the working parameter value, that an environmental parameter value of the target photovoltaic device meets an environmental parameter threshold. Using the method helps reduce operation and maintenance costs of a photovoltaic power station.
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公开(公告)号：US20230260097A1
公开(公告)日：2023-08-17
申请号：US18305171
申请日：2023-04-21
发明人： Jianqiang Wang , Zhenhuan Shu , Song Wan , Yanzhong Zhang
CPC分类号： G06T7/0002 , G01J5/0859 , B64U10/00 , G01J2005/0077
摘要： A power station inspection system and a power station inspection method are disclosed. A power station inspection system includes an unmanned aerial vehicle, and an unmanned aerial vehicle flight controller, a central controller, and at least two types of data collection terminals that are disposed on the unmanned aerial vehicle. The central controller is configured to control the unmanned aerial vehicle flight controller, so that the unmanned aerial vehicle flight controller controls flight of the unmanned aerial vehicle. The central controller is further configured to control the at least two types of data collection terminals to collect at least two types of component image data of a power station component in a flight process of the unmanned aerial vehicle.
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公开(公告)号：US20240146069A1
公开(公告)日：2024-05-02
申请号：US18410092
申请日：2024-01-11
发明人： Yanzhong Zhang , Song Wan , Hongmiao Fang
CPC分类号： H02J3/388 , H02J3/0012 , H02J3/381 , H02J2300/24
摘要： A power supply system includes at least one group of power supply modules. The power supply module includes a first string, a first residual current detection circuit, an inverter circuit, and a first controller. The first residual current detection circuit is connected between the first string and an input end of the inverter circuit, and an output end of the inverter circuit is connected to an alternating current power grid. When a first residual current value detected by the first residual current detection circuit is greater than a first preset residual current threshold, the first controller controls the first string to be disconnected from the inverter circuit, or controls the inverter circuit to be disconnected from the alternating current power grid.
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公开(公告)号：US20230208147A1
公开(公告)日：2023-06-29
申请号：US18145830
申请日：2022-12-22
发明人： Min Liu , Shuchao Wang , Yao Chang , Song Wan
IPC分类号： H02J3/46
CPC分类号： H02J3/466 , H02J2300/26
摘要： This application discloses a photovoltaic station and a power coordination method for a photovoltaic station. Sample inverters are disposed in arrays requiring power adjustment in the photovoltaic station. Real-time active power of sample inverters in each array is obtained. Then, an available active capacity and an available reactive capacity of the array and available active capacities and available reactive capacities of all the arrays requiring power adjustment are obtained based on the real-time active power of the sample inverters. Finally, active power and reactive power of the photovoltaic station are separately allocated to the N arrays based on the available active capacities and the available reactive capacities respectively corresponding to the N arrays. Because the sample inverters come from the arrays requiring power adjustment, differences between inverters and differences between the arrays can be fully exploited, and the available active capacities of the arrays can be more accurately obtained by using the sample inverters. Therefore, a more accurate available power capacity of the photovoltaic station is obtained by using relatively accurate available active capacities.
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公开(公告)号：US12009783B2
公开(公告)日：2024-06-11
申请号：US17473534
申请日：2021-09-13
发明人： Jianqiang Wang , Song Wan , Yanzhong Zhang , Yongbing Gao , Xinyu Yu
CPC分类号： H02S50/15 , H02H1/0007 , H02H7/20
摘要： A fault detection apparatus includes an image capture module and a detection module, and the fault detection apparatus is configured to capturing an image of the photovoltaic module in a light emitting state, and performing fault detection on the photovoltaic module based on the image when a signal-to-noise ratio of the image is maximized, to identify a fault type of the photovoltaic module.
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公开(公告)号：US20230421098A1
公开(公告)日：2023-12-28
申请号：US18454211
申请日：2023-08-23
发明人： Xinyu Yu , Jianqiang Wang , Song Wan , Kai Xin
CPC分类号： H02S50/15 , H02J2300/26 , H02J3/381
摘要： A photovoltaic cell detection method includes determining a first output power working at a first voltage and a second output power working at a second voltage, where a difference between the first output power and the second output power is less than a power difference threshold, and where both the first output power and the second output power are greater than 0; controlling the photovoltaic cell to work at the first voltage, and obtaining first infrared image information of the photovoltaic cell; and controlling the photovoltaic cell to work at the second voltage, and obtaining second infrared image information of the photovoltaic cell, where both the first infrared image information and the second infrared image information are used to jointly detect whether the photovoltaic cell is faulty.
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公开(公告)号：US20220407456A1
公开(公告)日：2022-12-22
申请号：US17896730
申请日：2022-08-26
发明人： Song Wan , Yongbing Gao , Xun Wang , Yanzhong Zhang , Zhipeng Wu
摘要： A linkage protection system includes an inverter, an anti-potential-induced degradation (PID) apparatus, and an insulation-monitoring apparatus. The anti-PID apparatus is configured to inject a voltage into an input end or an output end of the inverter, to increase or decrease a voltage-to-earth of a photovoltaic system. The insulation-monitoring apparatus is configured to inject an insulation-monitoring voltage into a direct current (DC) side or an alternating current (AC) side of the inverter. The anti-PID apparatus and the insulation-monitoring apparatus directly or indirectly communicate with each other, to learn of information about whether a peer apparatus is operating, and perform linkage control. The anti-PID apparatus and the insulation-monitoring apparatus operate in different time periods.
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