-
公开(公告)号：US10381836B2
公开(公告)日：2019-08-13
申请号：US14570540
申请日：2014-12-15
摘要： Power converter communications, including power converter communication methods and power converters that can communicate information, are disclosed. A control variable of a power converter is modulated, to modulate an output of the power converter for communicating information. Modulation of voltage or current on a circuit path to which the power converter is coupled could be detected, by another power converter, for example. Such modulation could be detected by sensors that are also used in controlling the power converter. Either or both of transmission and reception could therefore be provided without requiring any additional hardware at a power converter.
-
公开(公告)号：US09853443B2
公开(公告)日：2017-12-26
申请号：US14316477
申请日：2014-06-26
CPC分类号： H02H3/46 , H01L31/02021 , H02H1/0015 , H02H7/20 , Y02E10/56
摘要： A first switch for connection in a first circuit path between a PV panel string and an inverter in a power system, and a second switch for connection in a second circuit path across an output of the PV panel string, are normally closed and open, respectively, during non-fault operation of the power system. Both series and parallel arc faults in the power system can be extinguished by further control of the switches. Arc fault detection could be based on probabilistic frequency analysis of current or power flow measurements in the PV panel string, current or power imbalance, interruption in communications with the PV panels, or combinations of these techniques.
-
公开(公告)号：US20160020702A1
公开(公告)日：2016-01-21
申请号：US14798924
申请日：2015-07-14
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , H02M3/33523 , Y02B70/1475
摘要： One or more first switches coupled to one of a primary transformer winding and a secondary transformer winding are controlled based on a first switch control reference clock signal. A reflected voltage across the other of the primary and secondary windings is sensed, and a second switch control reference clock signal is synchronized to the first switch control reference clock signal based on the reflected voltage. One or more second switches coupled to the other of the primary and secondary windings are controlled based on the second switch control reference clock signal. A digital isolator could instead be used to transfer a switch control reference signal across an isolation boundary. Switch control signals for controlling a set of switches on one side of the isolation boundary may be derived from a switch control reference signal that is synchronized with the transferred switch control reference clock signal.
摘要翻译： 基于第一开关控制参考时钟信号来控制耦合到初级变压器绕组和次级变压器绕组中的一个的一个或多个第一开关。 检测到初级和次级绕组中的另一个的反射电压，并且基于反射电压将第二开关控制参考时钟信号同步到第一开关控制参考时钟信号。 耦合到初级和次级绕组中的另一个的一个或多个第二开关基于第二开关控制参考时钟信号来控制。 数字隔离器可以替代地用于在隔离边界上传送开关控制参考信号。 用于控制隔离边界一侧的一组开关的开关控制信号可以从与传送的开关控制基准时钟信号同步的开关控制参考信号导出。
-
公开(公告)号：US09219421B2
公开(公告)日：2015-12-22
申请号：US13657171
申请日：2012-10-22
CPC分类号： H02M3/33546 , H02M3/33584 , H02M3/33592 , H02M2001/0058 , Y02B70/1433 , Y02B70/1475 , Y02B70/1491
摘要： Forward boost power converters, and related methods, are disclosed. In a switching mode power converter coupled between a first terminal pair and a second terminal pair, a first inductance is coupled to a first switch in a first circuit path across the first terminal pair. A capacitance is coupled to a second inductance in a second circuit path, and to the first inductance in a third circuit path. During their respective conduction periods, the first switch couples the first inductance across the first terminal pair, a second switch completes a circuit between the second terminal pair and one of: the second circuit path or the third circuit path, and a third switch completes the other of: the second circuit path and the third circuit path. Energy transfer involves both substantially linearly varying currents and substantially half sinusoidal current pulses.
摘要翻译： 正向升压功率转换器及相关方法。 在耦合在第一端子对和第二端子对之间的开关模式功率转换器中，第一电感耦合到穿过第一端子对的第一电路中的第一开关。 电容耦合到第二电路中的第二电感，并且耦合到第三电路中的第一电感。 在它们各自的导通时段期间，第一开关将第一电感耦合在第一端子对上，第二开关完成第二端子对与第二电路路径或第三电路路径之一的电路，第三开关完成 另一个：第二电路路径和第三电路路径。 能量转移涉及基本线性变化的电流和基本上一半的正弦电流脉冲。
-
公开(公告)号：US20150016153A1
公开(公告)日：2015-01-15
申请号：US13940774
申请日：2013-07-12
IPC分类号： H02M3/335
CPC分类号： H02M3/33538 , Y02B70/1433
摘要： An active clamp circuit includes a clamp capacitance and a clamp switch coupled in a circuit path, and a diode coupled across the clamp switch.
摘要翻译： 有源钳位电路包括钳位电容和耦合在电路路径中的钳位开关和耦合在钳位开关上的二极管。
-
公开(公告)号：US09697961B2
公开(公告)日：2017-07-04
申请号：US13840627
申请日：2013-03-15
CPC分类号： H01H9/00 , H01L31/02021 , H02S50/00 , Y02E10/50 , Y10T307/696 , Y10T307/766 , Y10T307/858
摘要： A PhotoVoltaic (PV) panel bypass switching arrangement includes first and second switches. The first switch is to be coupled between a power system and a first end of a circuit path of the PV panel in which PV cells are connected, and is controllable to connect the first end of the circuit path to a power system and to disconnect the first end of the circuit path from the power system. The second switch is to be coupled between (i) a point between the first switch and the power system and (ii) a point between a second end of the circuit path and the power system, and is controllable to open and close a bypass circuit path that bypasses the circuit path. The first and second switches are controlled based on a determination as to whether the circuit path of the PV panel is to be bypassed.
-
公开(公告)号：US09673721B2
公开(公告)日：2017-06-06
申请号：US14798924
申请日：2015-07-14
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , H02M3/33523 , Y02B70/1475
摘要： One or more first switches coupled to one of a primary transformer winding and a secondary transformer winding are controlled based on a first switch control reference clock signal. A reflected voltage across the other of the primary and secondary windings is sensed, and a second switch control reference clock signal is synchronized to the first switch control reference clock signal based on the reflected voltage. One or more second switches coupled to the other of the primary and secondary windings are controlled based on the second switch control reference clock signal. A digital isolator could instead be used to transfer a switch control reference signal across an isolation boundary. Switch control signals for controlling a set of switches on one side of the isolation boundary may be derived from a switch control reference signal that is synchronized with the transferred switch control reference clock signal.
-
公开(公告)号：US20140368058A1
公开(公告)日：2014-12-18
申请号：US14286076
申请日：2014-05-23
IPC分类号： H02J4/00
CPC分类号： H01L31/02021 , H02J3/383 , Y02E10/563 , Y10T307/76
摘要： A PhotoVoltaic (PV) panel switching arrangement includes a first switch and a second switch, which in some embodiments are in a DC converter. The first switch is to be coupled between a power system and a first end of a circuit path of the PV panel, and the second switch is to be coupled between (i) a point between the first switch and the power system and (ii) a point between a second end of the circuit path and the power system. The switches are controlled for DC conversion of PV panel output where the circuit path of the PV panel is not to be bypassed, and to disconnect the first end of the circuit path from the power system and to close a bypass circuit path that bypasses the circuit path on a determination that the circuit path of the PV panel is to be bypassed.
摘要翻译： PhotoVoltaic（PV）面板切换装置包括第一开关和第二开关，其在一些实施例中是DC转换器。 第一开关将耦合在电力系统和PV面板的电路路径的第一端之间，并且第二开关将耦合在（i）第一开关和电力系统之间的点之间，以及（ii） 电路路径的第二端和电力系统之间的点。 这些开关被控制用于PV面板输出的直流转换，其中PV面板的电路路径不被旁路，并且将电路路径的第一端与电力系统断开并闭合旁路电路 确定PV面板的电路路径将被旁路的路径。
-
公开(公告)号：US20140265638A1
公开(公告)日：2014-09-18
申请号：US13840162
申请日：2013-03-15
IPC分类号： H01H9/00
CPC分类号： H02S50/00 , H01H9/00 , H01L31/02021 , H02J3/383 , H02J3/40 , H02J3/46 , H02S40/36 , H02S50/10 , Y02E10/50 , Y10T307/766 , Y10T307/865
摘要： Intelligent safety disconnect switching methods and arrangements for PhotoVoltaic (PV) panels are disclosed. A determination is made as to whether a reconnect condition, for reconnecting a PV panel to a power system from which the PV panel is disconnected, is satisfied. The PV panel is automatically reconnected to the power system responsive to determining that the reconnect condition is satisfied. A determination is then made as to whether a power system operating condition is satisfied on reconnection of the PV panel, and the PV panel is automatically disconnected from the power system responsive to determining that the power system operating condition is not satisfied on reconnection of the PV panel.
摘要翻译： 公开了用于PhotoVoltaic（PV）面板的智能安全断开切换方法和布置。 确定是否满足用于将PV面板重新连接到PV面板断开的电力系统的重新连接状态。 响应于确定重新连接条件是否满足，PV面板自动重新连接到电力系统。 然后，确定在重新连接PV面板时是否满足电力系统运行条件，并且响应于确定在重新连接PV时电力系统运行条件不满足，PV面板自动从电力系统断开 面板。
-
公开(公告)号：US11031905B2
公开(公告)日：2021-06-08
申请号：US15366488
申请日：2016-12-01
摘要： Intelligent safety disconnect switching methods and arrangements for PhotoVoltaic (PV) panels are disclosed. A switching device that is connected between a PV panel and a PV panel string detects a low current condition or an arc fault condition in the PV panel string. The switching device is automatically controlled to disconnect the
PV panel from the PV panel string responsive to detection of the low current condition or the arc fault condition. Switching device control could also be responsive to a disconnect command. For example, such a command could be generated by a grid sensor responsive to determining that an inverter, to which the PV panel string is connected, is not connected to an electrical grid.
-
-
-
-
-
-
-
-
-
搜索结果
28 条记录 (耗时 0.02 秒)
