公开(公告)号：US09455580B2

公开(公告)日：2016-09-27

申请号：US14321935

申请日：2014-07-02

Applicant: General Electric Company

Inventor： Saijun Mao ,  Huiqing Wu ,  Herman Lucas Norbert Wiegman ,  Qunjian Huang ,  Ying Mei

IPC: H02J7/00

CPC classification number: H02J7/0014 ,  H02J7/0016 ,  H02J7/0019 ,  Y02T10/7055

Abstract: A battery system has a battery module including a number M of series-connected batteries. The battery system is further provided with a number N (1

Abstract translation: 电池系统具有包括M个串联电池的电池模块。 电池系统还设置有数个N（1≤N≤M）的电荷均衡器，每个电荷均一次连接到电池，使得电池被充电和/或放电以实现电荷均衡。 控制装置被配置为基于电池的充电状态（SOC）来确定每个电池是否需要充电均衡，比较需要电荷均衡的电池数量L和数量M，并且基于比较结果 导致关闭电池系统，或者要求电荷均衡的一个或多个电池连接到相应的电荷均衡器。 选择开关模块用于将需要电荷均衡的一个或多个电池分别连接到相应的电荷均衡器。

公开(公告)号：US20160218400A1

公开(公告)日：2016-07-28

申请号：US14606068

申请日：2015-01-27

Applicant: General Electric Company

Inventor： Jiucai Zhang ,  Charles Clarence Hicks,, JR. ,  Sam T. Liu ,  Robert A. Kaucic ,  Leng Mao ,  David E. James ,  Herman Lucas Norbert Wiegman ,  Mert Geveci

IPC: H01M10/42 ,  H01M10/48

CPC classification number: G01R31/362 ,  G01R31/3651 ,  H01M10/48

Abstract: The present disclosure is directed to a system and method for controlling an energy storage device by more accurately detecting an end-of-discharge voltage of the energy storage device. More specifically, in one embodiment, the method includes determining an end-of-discharge voltage threshold for the energy storage device. Another step includes filtering the end-of-discharge voltage threshold via a filter. The method also includes adjusting a time constant of the filter based on at least one voltage-current condition. Still a further step includes comparing the filtered end-of-discharge voltage threshold and a terminal voltage of the energy storage device. Based on the comparison, the method includes determining a change of state of the energy storage device. Thus, the energy storage device can be controlled based on the change of state.

Abstract translation: 本公开涉及一种用于通过更准确地检测能量存储装置的放电终止电压来控制能量存储装置的系统和方法。 更具体地，在一个实施例中，该方法包括确定能量存储装置的放电终止电压阈值。 另一步包括通过滤波器过滤放电终止电压阈值。 该方法还包括基于至少一个电压 - 电流条件调整滤波器的时间常数。 还有一个步骤包括比较滤波的放电后电压阈值和能量存储装置的端电压。 基于该比较，该方法包括确定能量存储装置的状态变化。 因此，可以基于状态的变化来控制能量存储装置。

公开(公告)号：US20150211512A1

公开(公告)日：2015-07-30

申请号：US14166991

申请日：2014-01-29

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Herman Lucas Norbert Wiegman ,  Paul Robert Gemin ,  Benjamin Earl Ross ,  Stephen Duane Sanborn ,  Robert Earl McDowell

IPC: F04B49/20 ,  F04B23/06

CPC classification number: F04B49/20 ,  F04B23/06

Abstract: A converterless motor-driven pump system includes an off-grid prime mover. The prime mover includes a rotational driveshaft that operates in response to a throttle or fuel input controller to control a rotation speed of the prime mover driveshaft. Operation of the throttle or fuel input controller is based on desired output characteristics of a pumping load. One or more electric power generators are driven by the off-grid prime mover to generate AC or DC power on an electrical bus shared by a plurality of variable speed electric motors. A plurality of pumps is connected to a common manifold shared by the plurality of pumps. The plurality of pumps is driven by the plurality of variable speed electric motors to generate a desired wellhead pressure or pumping load flow rate via the shared common manifold.

Abstract translation: 无转矩电动泵系统包括离网原动机。 原动机包括旋转驱动轴，其响应于节气门或燃料输入控制器操作以控制原动机驱动轴的转速。 节气门或燃料输入控制器的操作基于泵送负载的期望的输出特性。 一个或多个发电机由离网原动机驱动，以在由多个变速电动机共享的电气总线上产生AC或DC电力。 多个泵连接到由多个泵共用的公共歧管。 多个泵由多个变速电动机驱动，以经由共用公共歧管产生期望的井口压力或泵送负载流量。