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公开(公告)号：US10431370B2
公开(公告)日：2019-10-01
申请号：US15943108
申请日：2018-04-02
发明人： Jeff Richter
IPC分类号： H01F27/06 , H05K13/00 , H01F27/08 , H05K5/06 , H05K7/20 , H01F27/02 , H05K5/00 , H05K5/02 , H05K13/04 , H05K3/32
摘要： Embodiments disclosed herein include systems and methods for mounting electrical components in electrical systems. In one example, there is provided a heat-generating electrical component and base assembly configured to be secured to a component wall. The assembly comprises a base including an upper portion having a recess and a lower portion having a floating electrical connector, a heat-generating electrical component secured in the recess of the base and including an electrical lead in electrical communication with the floating electrical connector, and a gasket circumscribing a perimeter of the lower portion.
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公开(公告)号：US09941701B2
公开(公告)日：2018-04-10
申请号：US14870306
申请日：2015-09-30
发明人： Djordje Garabandic
CPC分类号： H02J3/383 , H02J3/46 , H02S40/32 , H02S40/34 , H02S50/00 , Y02E10/563 , Y10T307/724
摘要： A photovoltaic system includes: a photovoltaic generator comprising strings that each includes one or more photovoltaic cells; a power converter; switches; and a controller. The power converter is configured to convert direct current (DC) power provided by the photovoltaic generator into alternating current (AC) power, and to output the AC power. Each switch is associated with one of the strings and is configured to connect the associated string to the power converter when set to a first setting, such that power generated by the first string can flow to the power converter. Each switch is also configured to disconnect the string from the power converter when set to a second setting. The controller is configured to control the power provided by the photovoltaic generator by selectively connecting the strings of the photovoltaic generator to the power converter by controlling the settings of the switches.
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公开(公告)号：US11382242B2
公开(公告)日：2022-07-05
申请号：US16311580
申请日：2017-06-19
发明人： David Plecko
IPC分类号： H05K7/20 , H02S40/34 , H02S40/42 , H01L23/473
摘要： A power electronics system comprising a environmentally sealed electronics compartment for housing power electronics equipment is provided. The system includes a plenum within the sealed electronic compartment for circulating air. A first liquid cooling loop is configured to cool air flowing through the plenum. A second liquid cooling loop configured to directly cool the power electronics equipment. The system includes a controller configured to independently control the flow rate of the first liquid cooling loop and the second liquid cooling loop.
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公开(公告)号：US10305285B2
公开(公告)日：2019-05-28
申请号：US15948377
申请日：2018-04-09
发明人： Djordje Garabandic
摘要： A photovoltaic system includes: a photovoltaic generator comprising strings that each includes one or more photovoltaic cells; a power converter; switches; and a controller. The power converter is configured to convert direct current (DC) power provided by the photovoltaic generator into alternating current (AC) power, and to output the AC power. Each switch is associated with one of the strings and is configured to connect the associated string to the power converter when set to a first setting, such that power generated by the first string can flow to the power converter. Each switch is also configured to disconnect the string from the power converter when set to a second setting. The controller is configured to control the power provided by the photovoltaic generator by selectively connecting the strings of the photovoltaic generator to the power converter by controlling the settings of the switches.
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公开(公告)号：US20160245855A1
公开(公告)日：2016-08-25
申请号：US15026339
申请日：2013-11-06
CPC分类号： G01R31/086 , G01R15/12 , G01R15/14 , G01R27/02 , G01R27/025 , G01R31/025 , G01R31/40 , H02M1/32 , H02M3/156 , H02M3/157 , H02M3/1584
摘要： At least one aspect of the disclosure is directed to a power conversion unit (PCU). The PCU includes a power converter circuit, a safety detection circuit including a plurality of known network impedances and a switch having a first end coupled between two of the plurality of network impedances and a second end coupled to an output terminal, and a controller communicatively coupled to the safety detection circuit and the at least one power converter circuit. The controller may be configured to operate the switch, determine one or more voltage values of the safety detection circuit, and calculate an insulation impedance based at least in part on the one or more voltage values, a position of the switch, and the plurality of known network impedances.
摘要翻译： 本公开的至少一个方面涉及一种功率转换单元（PCU）。 PCU包括功率转换器电路，包括多个已知网络阻抗的安全检测电路和具有耦合在所述多个网络阻抗中的两个之间的第一端和耦合到输出端的第二端的开关，以及通信耦合的控制器 到所述安全检测电路和所述至少一个功率转换器电路。 控制器可以被配置为操作开关，确定安全检测电路的一个或多个电压值，并且至少部分地基于一个或多个电压值，开关的位置和多个电压值来计算绝缘阻抗 已知的网络阻抗。
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公开(公告)号：US08760170B2
公开(公告)日：2014-06-24
申请号：US13015929
申请日：2011-01-28
申请人： Ralph McDiarmid , Zoran Miletic
发明人： Ralph McDiarmid , Zoran Miletic
IPC分类号： G01R31/08 , G01R31/02 , H02H9/00 , H01G2/12 , H01H85/30 , G01R31/327 , H01H9/16 , H02J13/00 , H02H11/00
摘要： Systems, methods, and circuits are disclosed for detecting continuity of a fuse or other current protection device in a circuit. For example, a signal is generated and coupled onto a closed circuit in which the continuity of the fuse closes the circuit. The signal is then coupled from the closed circuit to a signal detector, which detects the presence of the signal and provides an output indicative of the presence of the signal. If the fuse blows, the circuit is opened, prohibiting the signal from being coupled to the signal detector, in which case the signal detector provides an output indicative of the absence of the signal. This example, however, are not exhaustive.
摘要翻译： 公开了用于检测电路中的保险丝或其它电流保护装置的连续性的系统，方法和电路。 例如，产生信号并耦合到闭合电路，其中保险丝的导通关闭电路。 然后，信号从闭合电路耦合到信号检测器，信号检测器检测信号的存在并提供指示信号存在的输出。 如果保险丝熔断，则断开电路，禁止信号耦合到信号检测器，在这种情况下，信号检测器提供指示信号不存在的输出。 然而，这个例子并不详尽。
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公开(公告)号：US20220272879A1
公开(公告)日：2022-08-25
申请号：US17662855
申请日：2022-05-11
发明人： David Plecko
IPC分类号： H05K7/20
摘要： A power electronics system comprising a environmentally sealed electronics compartment for housing power electronics equipment is provided. The system includes a plenum within the sealed electronic compartment for circulating air. A first liquid cooling loop is configured to cool air flowing through the plenum. A second liquid cooling loop configured to directly cool the power electronics equipment. The system includes a controller configured to independently control the flow rate of the first liquid cooling loop and the second liquid cooling loop.
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公开(公告)号：US10859623B2
公开(公告)日：2020-12-08
申请号：US15026339
申请日：2013-11-06
IPC分类号： G01R31/08 , H02M3/156 , G01R31/40 , G01R27/02 , H02M1/32 , G01R15/12 , G01R15/14 , H02M3/158 , H02M3/157 , G01R31/50
摘要： At least one aspect of the disclosure is directed to a power conversion unit (PCU). The PCU includes a power converter circuit, a safety detection circuit including a plurality of known network impedances and a switch having a first end coupled between two of the plurality of network impedances and a second end coupled to an output terminal, and a controller communicatively coupled to the safety detection circuit and the at least one power converter circuit. The controller may be configured to operate the switch, determine one or more voltage values of the safety detection circuit, and calculate an insulation impedance based at least in part on the one or more voltage values, a position of the switch, and the plurality of known network impedances.
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公开(公告)号：US09343906B2
公开(公告)日：2016-05-17
申请号：US13159396
申请日：2011-06-13
申请人： Karl Kaiser
发明人： Karl Kaiser
CPC分类号： H02J3/383 , H02J3/385 , Y02E10/563 , Y02E10/58
摘要： A method for initializing a power inverter of a photovoltaic system includes: opening an AC mains switch and a DC switch to disconnect the power inverter from an electrical grid and to disconnect a capacitor bank associated with the inverter from a solar cell array; closing the AC mains switch to allow power to flow from an electrical grid to the DC capacitor bank to charge the DC capacitor bank; monitoring the DC capacitor bank until a desired voltage is reached; initiating the operation of the power inverter; stabilizing the DC voltage received from the DC capacitor bank at a predetermined power up voltage for the power inverter; waiting for an inverter initialization period to elapse; and adjusting DC voltage received by the power inverter to a voltage associated with a maximum power output level of the solar cell array.
摘要翻译： 一种用于初始化光伏系统的电力逆变器的方法包括：打开AC电源开关和DC开关以将电力逆变器与电网断开，并将与逆变器相关联的电容器组与太阳能电池阵列断开; 关闭交流电源开关以允许电力从电网流向直流电容器组，以对直流电容器组充电; 监视直流电容器组直到达到所需的电压; 启动电源逆变器的运行; 稳定在电力逆变器的预定上电电压下从直流电容器组接收的直流电压; 等待变频器初始化时间过去; 以及将由所述功率逆变器接收的DC电压调整为与所述太阳能电池阵列的最大功率输出电平相关联的电压。
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公开(公告)号：US09106087B2
公开(公告)日：2015-08-11
申请号：US13250367
申请日：2011-09-30
申请人： Rick West
发明人： Rick West
CPC分类号： H02J9/005 , H01F27/341 , H01F27/42 , H02J2009/007 , Y10T307/297 , Y10T307/469
摘要： The invention is a device and method for eliminating core excitation losses in a distribution transformer when the transformer is not supplying power to loads. The invention consists of sensors, a control circuit, a user interface and a power contactor. The power contactor is connected on the line side of a transformer and is opened or closed automatically based on preprogrammed time or load criteria determined by the control circuit. In one operational mode and when the transformer is disconnected from the line, the control board generates low power pulses at the transformer load connection points in order to “search” for loads. If a load is detected, the transformer is reconnected by way of contactor closure. If the transformer load drops to zero, for a predetermined amount of time, the transformer is again disconnected and the pulsed load search is reestablished.
摘要翻译： 本发明是一种用于在变压器不向负载供电时消除配电变压器中的磁芯励磁损耗的装置和方法。 本发明由传感器，控制电路，用户接口和电力接触器组成。 电源接触器连接在变压器的线路侧，并根据由控制电路确定的预编程时间或负载标准自动打开或关闭。 在一种操作模式下，当变压器与线路断开时，控制板在变压器负载连接点产生低功率脉冲，以便“搜索”负载。 如果检测到负载，变压器通过接触器闭合重新连接。 如果变压器负载下降到零，在预定的时间内，变压器再次断开并且重新建立脉冲负载搜索。
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