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公开(公告)号：US10992257B2
公开(公告)日：2021-04-27
申请号：US15461295
申请日：2017-03-16
发明人： Sandeep Narla
摘要： A method of monitoring state of health for an energy generation system includes receiving a measurement of a parameter of an electrical component in the PV energy generation system at an instance in time, referencing a look-up table containing several values of the parameter representing an expected degradation trend across a progression of time for the electrical component, comparing the measurement to an expected value of the expected degradation trend for a period of time corresponding to the instance in time, and initiating a preventative measure based upon the comparison between the measurement and the expected value of the expected degradation trend.
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公开(公告)号：US10305286B2
公开(公告)日：2019-05-28
申请号：US15161104
申请日：2016-05-20
发明人： Sandeep Narla
IPC分类号： H02J3/00 , H02J3/32 , H02J3/38 , H02J7/00 , H02J7/35 , H02M1/00 , H02M7/00 , H02M7/44 , H02M7/537
摘要： A power control system includes a first inverter power control system and a second inverter power control system coupled in a parallel configuration with the first inverter power control system. Both first and second inverter power control systems may each include an input configured to receive direct current (DC) power; a DC to alternating current (AC) inverter stage configured to receive the DC power input; an anti-islanding relay coupled to the output of the DC/AC inverter stage; and a transition relay coupled to the anti-islanding relay. The transition relay may be configured to route an output of the inverter power control system between one or more onsite back-up loads and an AC grid. The first inverter power control system may be designated as a master that is configured to control the operation of the second inverter power control system designated as a slave.
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公开(公告)号：US20190135116A1
公开(公告)日：2019-05-09
申请号：US16235967
申请日：2018-12-28
发明人： Sandeep Narla
摘要： A system for energy conversion with electric vehicle (EV) charging capability includes a hybrid inverter comprising a DC/DC converter stage for receiving power from a photovoltaic array, a capacitor bank, and a DC-AC inverter coupled to the capacitor bank. The DC-AC inverter includes a battery pack connection for supplying energy to or receiving energy from a battery pack, an AC grid connection for supplying power to or receiving power from an AC grid, a connection for supplying power to a load, and an EV connection for supplying power to or receiving power from an EV battery. The system also includes a controller for generating control signals to control the flow of power within the hybrid inverter, which converts power received from at least one of the photovoltaic array and the battery pack and provides the converted power to charge the EV battery via the EV connection.
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公开(公告)号：US10097005B2
公开(公告)日：2018-10-09
申请号：US14828048
申请日：2015-08-17
发明人： Sandeep Narla , Alex Mayer , Brett Alten
摘要： Methods and apparatus for controlling an energy-generation device may be provided. Sockets of the device may be configured to electrically couple to respective energy-generation modules. In some examples, the device may include a connector, memory, and a processor configured to execute instructions for managing the electrical configuration of the sockets.
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5.发明申请公开(公告)号：US20160190798A1
公开(公告)日：2016-06-30
申请号：US14681705
申请日：2015-04-08
发明人： Sandeep Narla , Alex Mayer , Soren Jensen
摘要： A solid state circuit for performing rapid shutdown of a photovoltaic power generation system includes a pair of high voltage power transistors connected between a photovoltaic array and a pair of high voltage lines that function to supply power generated by the photovoltaic array to a DC to AC inverter. The solid state circuit further includes a control circuit configured so that when the photovoltaic power generation system operates under normal conditions, the control circuit maintains the pair of high voltage power transistors in the on state so that power produced by the photovoltaic array can be transmitted to the DC to AC inverter through the pair of high voltage lines. The control circuit is further configured so that upon receiving a rapid shutdown command, the control circuit turns off the pair of high voltage power transistors to thereby electrically disconnect the photovoltaic array from the pair of power lines.
摘要翻译： 用于执行光伏发电系统的快速关闭的固态电路包括连接在光伏阵列和一对高压线路之间的一对高压功率晶体管，其功能是将由光伏阵列产生的功率提供给DC至AC逆变器 。 固态电路还包括控制电路，其被配置为使得当光伏发电系统在正常条件下工作时，控制电路将该对高压功率晶体管保持在导通状态，使得由光伏阵列产生的功率可以传输到 直流到交流逆变器通过一对高压线路。 控制电路还被配置为使得在接收到快速关断命令时，控制电路关闭该对高压功率晶体管，从而使光电阵列与一对电力线电连接。
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6.发明授权公开(公告)号：US10381838B2
公开(公告)日：2019-08-13
申请号：US15151367
申请日：2016-05-10
发明人： Sandeep Narla
摘要： A programmable microcontroller and a non-volatile memory are coupled to monitor and store operating parameters associated with operation of a power control system for a power generation system. The microcontroller is programmed to respond to a fault event (i.e., an anomalous condition that exceeds a threshold value) by storing the operating parameters before, during and after the fault event in the non-volatile memory.
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公开(公告)号：US10263430B2
公开(公告)日：2019-04-16
申请号：US15161127
申请日：2016-05-20
发明人： Sandeep Narla
IPC分类号： H02J3/00 , H02J3/32 , H02J3/38 , H02J7/00 , H02J7/35 , H02M7/00 , H02M1/00 , H02M7/44 , H02M7/537
摘要： An energy generation system includes a plurality of energy generation devices for generating DC power, a plurality of energy storage devices for storing the generated DC power and discharging stored DC power, a plurality of single-phase inverters coupled to respective energy generation devices and energy storage devices. Each single-phase inverter of the plurality of single-phase inverters is configured to convert generated DC power or stored DC power to AC power so that the converted AC power of each single-phase inverter is offset by a phase from one another.
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公开(公告)号：US10183583B2
公开(公告)日：2019-01-22
申请号：US15288906
申请日：2016-10-07
发明人： Sandeep Narla
IPC分类号： H01M10/46 , B60L11/18 , B60L8/00 , H02J3/38 , H02J9/06 , H02M3/04 , H02M7/44 , H02J7/35 , B60K1/04
摘要： An inverter includes a battery pack connection for supplying energy to or receiving energy from a photovoltaic string, a battery pack, an AC grid connection for supplying power to or receiving power from an AC grid, a connection for supplying power to a home back-up load, an electric vehicle connection for supplying to and receiving power from an electric vehicle (EV) battery, and a control input configured to receive one or more control signals for controlling the flow of power within the inverter. The inverter, under the control of the one or more control signals, converts power received from one of different power sources and provides the converted power to charge a battery of the EV.
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公开(公告)号：US09923379B2
公开(公告)日：2018-03-20
申请号：US15203770
申请日：2016-07-06
IPC分类号： H02J1/10 , H02J4/00 , H02J7/02 , H02J3/38 , H02S40/38 , H02S40/32 , H02J7/34 , H02J7/00 , G05F1/67 , H02J7/35
CPC分类号： H02J4/00 , G05F1/67 , H02J3/385 , H02J7/007 , H02J7/022 , H02J7/34 , H02J7/35 , H02J7/355 , H02S40/32 , H02S40/38 , Y02E10/56 , Y02E10/563 , Y02E10/566 , Y02E10/58 , Y04S20/525
摘要： A string inverter for use with a photovoltaic array includes at least one string-level DC input channel for receiving DC power from the photovoltaic array, and at least one input-output channel for connecting the string inverter to a battery pack. The string inverter also includes a DC to AC inverter having an AC output, and a switch configured to control a flow of power through the string inverter. When the switch is in a first state, AC power can flow from the string inverter to a load side of a customer utility meter and one or more back-up loads, in a second state, power can flow from the load side of a customer utility meter to the one or more back-up loads bypassing the string inverter, and in a third state, all circuits coupled to the output of the string inverter are electrically disconnected from the string inverter.
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公开(公告)号：US20170054406A1
公开(公告)日：2017-02-23
申请号：US14828048
申请日：2015-08-17
发明人： Sandeep Narla , Alex Mayer , Brett Alten
CPC分类号： H02J3/383 , G05B15/02 , H01R29/00 , H02J3/386 , H02S10/00 , Y02E10/563 , Y02E10/763
摘要： Methods and apparatus for controlling an energy-generation device may be provided. Sockets of the device may be configured to electrically couple to respective energy-generation modules. In some examples, the device may include a connector, memory, and a processor configured to execute instructions for managing the electrical configuration of the sockets.
摘要翻译： 可以提供用于控制能量产生装置的方法和装置。 设备的插座可以被配置为电耦合到相应的能量发生模块。 在一些示例中，设备可以包括连接器，存储器和被配置为执行用于管理插座的电气配置的指令的处理器。
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