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公开(公告)号：US20140038456A1
公开(公告)日：2014-02-06
申请号：US13955558
申请日：2013-07-31
发明人： Peng Zhao , Peihuan Yang , Ping Zheng , Xuyang Wang , Ming Cui
IPC分类号： H01R24/38
CPC分类号： H01R24/38 , H01R13/5205 , H01R13/59 , H01R13/622 , H01R2101/00
摘要： Embodiments of the present invention provide a photovoltaic (PV) connector, comprising a first connecting unit and a second connecting unit detachably connected with the first connecting unit, wherein the first connecting unit includes a first conductor, a first stop ring, a first housing and a first conductor core provided inside and detachably connected to the first housing; the first conductor is electrically connected with a pressing end of the first conductor core; the first stop ring is detachably connected with the first housing; the second connecting unit includes a second conductor, a second housing, a second stop ring and a second conductor core provided inside and detachably connected to the second housing; the second conductor is electrically connected with a pressing end of the second conductor core; the second stop ring is detachably connected with the second housing.
摘要翻译： 本发明的实施例提供了一种光伏（PV）连接器，包括第一连接单元和与第一连接单元可拆卸地连接的第二连接单元，其中第一连接单元包括第一导体，第一止动环，第一壳体和 第一导体芯，设置在内部并且可拆卸地连接到第一壳体; 第一导体与第一导体芯的按压端电连接; 所述第一止动环与所述第一壳体可拆卸地连接; 第二连接单元包括设置在内部并可拆卸地连接到第二壳体的第二导体，第二壳体，第二止动环和第二导体芯体; 所述第二导体与所述第二导体芯的按压端电连接; 第二止动环可拆卸地与第二壳体连接。
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公开(公告)号：US20140177299A1
公开(公告)日：2014-06-26
申请号：US14107236
申请日：2013-12-16
发明人： Xuyang Wang , Hangbing Song , Xiaoyan Han , Ming Cui
IPC分类号： H02M7/537
CPC分类号： H02J3/382 , H02M7/48 , H02M2001/007 , Y02E10/563
摘要： An inverter and a grid-connected power generation system are provided to efficiently reduce the electric energy loss due to a DC boosted circuit, improve the efficiency of a PV system, and increase lifetime of the inverter. The inverter comprises: a DC boosted circuit; an inversion circuit connected to a output end of the DC boosted circuit; and a bypass circuit, of which an input end is connected to a positive electrode input end of the DC boosted circuit, and an output end is connected to a positive electrode output end of the DC boosted circuit. When a DC input voltage applied to the DC boosted circuit is higher than a voltage required by the inversion circuit, the bypass circuit is turned on, and the DC input voltage is supplied to the inversion circuit through the bypass circuit; and when the DC input voltage is lower than the voltage required by the inversion circuit, the bypass circuit is turned off, and the DC input voltage is amplified by the DC boosted circuit and then supplied to the inversion circuit.
摘要翻译： 提供逆变器和并网发电系统，以有效降低由直流升压电路引起的电能损耗，提高光伏系统的效率，并增加逆变器的使用寿命。 逆变器包括：直流升压电路; 连接到直流升压电路的输出端的反相电路; 以及旁路电路，其输入端连接到直流升压电路的正极输入端，输出端连接到直流升压电路的正极输出端。 当施加到直流升压电路的直流输入电压高于反相电路所需的电压时，旁路电路导通，通过旁路电路将直流输入电压提供给反相电路; 当直流输入电压低于反相电路所要求的电压时，旁路电路被断开，直流输入电压被直流升压电路放大，然后提供给反相电路。
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公开(公告)号：US09325124B2
公开(公告)日：2016-04-26
申请号：US13955558
申请日：2013-07-31
发明人： Peng Zhao , Peihuan Yang , Ping Zheng , Xuyang Wang , Ming Cui
IPC分类号： H01R4/26 , H01R24/38 , H01R13/59 , H01R13/52 , H01R13/622 , H01R101/00
CPC分类号： H01R24/38 , H01R13/5205 , H01R13/59 , H01R13/622 , H01R2101/00
摘要： Embodiments of the present invention provide a photovoltaic (PV) connector, comprising a first connecting unit and a second connecting unit detachably connected with the first connecting unit, wherein the first connecting unit includes a first conductor, a first stop ring, a first housing and a first conductor core provided inside and detachably connected to the first housing; the first conductor is electrically connected with a pressing end of the first conductor core; the first stop ring is detachably connected with the first housing; the second connecting unit includes a second conductor, a second housing, a second stop ring and a second conductor core provided inside and detachably connected to the second housing; the second conductor is electrically connected with a pressing end of the second conductor core; the second stop ring is detachably connected with the second housing.
摘要翻译： 本发明的实施例提供了一种光伏（PV）连接器，包括第一连接单元和与第一连接单元可拆卸地连接的第二连接单元，其中第一连接单元包括第一导体，第一止动环，第一壳体和 第一导体芯，设置在内部并且可拆卸地连接到第一壳体; 第一导体与第一导体芯的按压端电连接; 所述第一止动环与所述第一壳体可拆卸地连接; 第二连接单元包括设置在内部并可拆卸地连接到第二壳体的第二导体，第二壳体，第二止动环和第二导体芯体; 所述第二导体与所述第二导体芯的按压端电连接; 第二止动环可拆卸地与第二壳体连接。
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公开(公告)号：US09170306B2
公开(公告)日：2015-10-27
申请号：US13876914
申请日：2012-11-06
发明人： Ping Zheng , Ming Cui , Peng Zhao , Xuyang Wang , Peihuan Yang
CPC分类号： G01R31/40 , H02J3/383 , H02J2003/388 , Y02E10/563
摘要： The present invention provides an islanding detection method and an islanding detection system. The method includes: acquiring a voltage signal at a grid-connected node of a power generation system, and extracting phase information of the voltage signal; constructing a slip-mode frequency shift islanding detection curve in the form of a quadratic function according to the phase information; and generating a disturbance signal according to the slip-mode frequency shift islanding detection curve, and sending the disturbance signal to an inverter of the power generation system. The method and system can avoid a non-detection zone, and can perform an inverter islanding detection in a fast and accurate manner under simple control.
摘要翻译： 本发明提供一种孤岛检测方法和孤岛检测系统。 该方法包括：获取发电系统的并网节点处的电压信号，并提取电压信号的相位信息; 根据相位信息构造二次函数形式的滑模式频移孤岛检测曲线; 并根据滑移模式频移孤岛检测曲线产生干扰信号，并将干扰信号发送到发电系统的逆变器。 该方法和系统可以避免非检测区域，并且可以在简单的控制下以快速，准确的方式执行逆变器孤岛检测。
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