公开(公告)号：WO2016140963A1

公开(公告)日：2016-09-09

申请号：PCT/US2016/020252

申请日：2016-03-01

申请人： NEC ENERGY SOLUTIONS, INC.

发明人： TREMELLING, Gregory ,  KERBEL, Oleg ,  MALTSEV, Yevgeny ,  AMIT, Ron

IPC分类号： H02J7/00 ,  H02J7/04

CPC分类号： H02J7/0026 ,  H02J7/0021 ,  H02J7/0029 ,  H02J7/0031 ,  H02J7/007 ,  H02J2007/0098

摘要： In an embodiment, an energy storage system includes one or more storage cells, charge/discharge circuitry, and charger wakeup circuitry. After the storage cells become depleted below an energy level threshold, the charge/discharge circuitry disconnects the storage cells from a main circuit associated with the storage system. The charger wakeup circuitry allows a limited amount of current to bypass the charge/discharge circuitry in order to present a current-limited voltage from the storage cells at the terminals. The voltage presented at the terminals is pulsed on and off when an external device is connected across the terminals. The voltage presented to the terminals is detected by the external device. After detecting the voltage, the external device performs an operation in response to detecting the condition.

摘要翻译： 在一个实施例中，能量存储系统包括一个或多个存储单元，充电/放电电路和充电器唤醒电路。 在存储单元耗尽低于能量水平阈值之后，充电/放电电路将存储单元与与存储系统相关联的主电路断开。 充电器唤醒电路允许有限量的电流绕过充电/放电电路，以便在端子处存储来自存储单元的限流电压。 当外部设备连接在端子上时，端子上呈现的电压被脉冲打开和关闭。 通过外部设备检测端子电压。 在检测到电压之后，外部设备响应于检测到状况而进行操作。

公开(公告)号：WO2016149440A1

公开(公告)日：2016-09-22

申请号：PCT/US2016/022744

申请日：2016-03-17

申请人： NEC ENERGY SOLUTIONS, INC.

发明人： MALTSEV, Yevgeny ,  TREMELLING, Gregory

IPC分类号： H02J7/02 ,  H02J7/00 ,  H02M3/335

CPC分类号： H02J7/0021 ,  H02J7/0013 ,  H02J7/0016 ,  H02J7/0019 ,  H02J7/0047 ,  H02J7/0073 ,  H02J7/0077

摘要： Systems and methods of pre-charging battery cells that can pre-charge battery cells included in a plurality of series-connected battery modules. The systems and methods monitor a value of a pre-charge current provided to the series-connected battery modules, and monitor a voltage level of the battery cells within each battery module. The systems and methods switchingly interrupt the pre-charge current within each battery module once it has reached a predetermined threshold current value or the battery cells within the battery module have been charged to a UVP level, causing a flyback current to flow into the battery cells of each battery module that have not yet been charged to the UVP level. Once the battery cells within each battery module have been charged to the UVP level, the systems and methods can provide a full-charge current to the series-connected battery modules.

摘要翻译： 对可以预先对包含在多个串联电池模块中的电池单元进行预充电的电池单元进行预充电的系统和方法。 系统和方法监测提供给串联电池模块的预充电电流的值，并监视每个电池模块内的电池单元的电压电平。 一旦系统和方法已经达到预定的阈值电流值，或者电池模块中的电池单元已被充电到UVP电平，交换地中断每个电池模块内的预充电电流，导致反激电流流入电池单元 的每个电池模块尚未充电到UVP级别。 一旦每个电池模块中的电池单元已充电到UVP电平，系统和方法可以为串联电池模块提供满充电流。

公开(公告)号：WO2016134205A1

公开(公告)日：2016-08-25

申请号：PCT/US2016/018580

申请日：2016-02-19

申请人： NEC ENERGY SOLUTIONS, INC.

发明人： WEISS, Harold ,  TREMELLING, Gregory

IPC分类号： G01R31/02 ,  H03J3/12 ,  H03J3/32

CPC分类号： G01R31/025 ,  G01R31/40 ,  G01R31/42

摘要： Systems and methods of detecting ground faults in energy storage and/or generation systems. The systems and methods can monitor levels of DC voltages and amplitudes of AC voltages occurring on the positive and negative side of a DC bus with respect to ground on the DC side of the energy storage and/or generation system, and process the monitored DC voltage levels and AC voltage amplitudes to detect a ground fault. Having detected such a ground fault, the systems and methods can generate a warning signal and/or shutdown at least part of the system, for example, by disconnecting a DC energy system from the DC bus, and/or by disabling a DC-to-AC bidirectional inverter included in the system.

摘要翻译： 检测能量储存和/或发电系统中的接地故障的系统和方法。 这些系统和方法可以监视在能量存储和/或发电系统的直流侧相对于直流母线相对于正面和负极侧出现的交流电压的电平和幅度，以及处理所监视的直流电压 电平和交流电压幅度来检测接地故障。 在检测到这样的接地故障之后，系统和方法可以产生警告信号和/或关闭系统的至少一部分，例如通过将DC能量系统与DC总线断开，和/或通过禁用DC-到 -AC双向逆变器包括在系统中。