公开(公告)号：US07777367B2

公开(公告)日：2010-08-17

申请号：US12099376

申请日：2008-04-08

申请人： Winnie W. Choy ,  Ich D. Ngo

发明人： Winnie W. Choy ,  Ich D. Ngo

IPC分类号： H02J1/04 ,  G05F1/00

CPC分类号： H02M1/14 ,  B64G1/428 ,  B64G1/44 ,  H02J1/102 ,  H02M3/1584 ,  Y02E10/56 ,  Y10T307/593

摘要： A current controller for a spacecraft comprises ripple regulators and a pulse width modulated regulator. Ripple regulators receive current from associated current sources and pass current to or shunts current away from the bus. The pulse width modulated regulator receives current from another current source and passes a portion of the current to the bus. This regulator varies its set point to float between ripple regulators passing current and the ripple regulators shunting current and adjusts a portion of current that is shunted away from the bus. The current shunted by the regulators form a total shunt current. The variable set point of the pulse width modulated regulator varies as the total shunt current varies. The ripple regulator set points do not vary in this manner. An error generation circuit generates an error that adjusts the ripple regulator and the pulse width modulated regulator to a desired bus voltage level.

摘要翻译： 用于航天器的电流控制器包括纹波调节器和脉宽调制调节器。 纹波稳压器从相关的电流源接收电流，并将电流传递到或远离总线的电流分流。 脉冲宽度调制调节器从另一电流源接收电流，并将电流的一部分传递到总线。 该调节器将脉动调节器通过电流和纹波调节器分流电流之间的浮点数设置为浮动，并调节一部分从母线分流的电流。 由调节器分流的电流形成总分流电流。 脉宽调制调节器的可变设定点随总分流电流的变化而变化。 纹波调节器设定点不会以这种方式变化。 误差产生电路产生将纹波调节器和脉宽调制调节器调整到所需总线电压电平的误差。

公开(公告)号：US20090251004A1

公开(公告)日：2009-10-08

申请号：US12099376

申请日：2008-04-08

申请人： Winnie W. Choy ,  Ich D. Ngo

发明人： Winnie W. Choy ,  Ich D. Ngo

IPC分类号： H02J1/04

CPC分类号： H02M1/14 ,  B64G1/428 ,  B64G1/44 ,  H02J1/102 ,  H02M3/1584 ,  Y02E10/56 ,  Y10T307/593

摘要： A current controller for a spacecraft comprises ripple regulators and a pulse width modulated regulator. Ripple regulators receive current from associated current sources and pass current to or shunts current away from the bus. The pulse width modulated regulator receives current from another current source and passes a portion of the current to the bus. This regulator varies its set point to float between ripple regulators passing current and the ripple regulators shunting current and adjusts a portion of current that is shunted away from the bus. The current shunted by the regulators form a total shunt current. The variable set point of the pulse width modulated regulator varies as the total shunt current varies. The ripple regulator set points do not vary in this manner. An error generation circuit generates an error that adjusts the ripple regulator and the pulse width modulated regulator to a desired bus voltage level.

摘要翻译： 用于航天器的电流控制器包括纹波调节器和脉宽调制调节器。 纹波稳压器从相关的电流源接收电流，并将电流传递到或远离总线的电流分流。 脉冲宽度调制调节器从另一电流源接收电流，并将电流的一部分传递到总线。 该调节器将脉动调节器通过电流和纹波调节器分流电流之间的浮点数设置为浮动，并调节一部分从母线分流的电流。 由调节器分流的电流形成总分流电流。 脉宽调制调节器的可变设定点随总分流电流的变化而变化。 纹波调节器设定点不会以这种方式变化。 误差产生电路产生将纹波调节器和脉宽调制调节器调整到所需总线电压电平的误差。

公开(公告)号：US20090310391A1

公开(公告)日：2009-12-17

申请号：US12140978

申请日：2008-06-17

申请人： Craig H. Becker-Irvin ,  Winnie W. Choy

发明人： Craig H. Becker-Irvin ,  Winnie W. Choy

IPC分类号： H02M3/156

CPC分类号： B64G1/428 ,  B64G1/425 ,  B64G1/443 ,  H01L31/02021 ,  H02J1/14 ,  Y02E10/50

摘要： Apparatuses and methods for optimizing power generation of a solar array are disclosed. The bus voltage is regulated with a regulator controlled through one or more reference signals. When the power bus is being used by electrical systems that are tolerant of a higher variable voltage range, the bus voltage can be temporarily set higher by a commanded reference signal to allow additional solar array power to supply to the power bus. The peak power point may be identified through an established relationship with the solar array performance as a function of temperature, season and/or the age of the solar array. In addition, a reference signal controlled by one or more temperature sensors on the solar array may also modify the bus voltage set-point. Improved solar array power may be extracted from spacecraft beginning-of-life to end-of-life operations due to low insertion loss of a direct energy transfer scheme.

摘要翻译： 公开了一种用于优化太阳能电池阵列发电的装置和方法。 总线电压通过一个或多个参考信号控制的调节器进行调节。 当电力总线被容纳在更高可变电压范围的电气系统使用时，总线电压可以通过指令的参考信号临时设置得更高，以允许额外的太阳能阵列电力供应到电力总线。 可以通过与太阳能阵列性能的确定关系来确定峰值功率点，作为太阳能阵列的温度，季节和/或年龄的函数。 此外，由太阳能电池阵列上的一个或多个温度传感器控制的参考信号也可以修改总线电压设定点。 由于直接能量转移方案的低插入损耗，改进的太阳能阵列功率可以从航天器的寿命开始到寿命终止操作。

公开(公告)号：US06377024B1

公开(公告)日：2002-04-23

申请号：US09816980

申请日：2001-03-23

申请人： Winnie W. Choy

发明人： Winnie W. Choy

IPC分类号： H02J700

CPC分类号： H02J7/0018

摘要： A system (10) and method (100) for charge and discharge equalization of a lithium-ion battery having a plurality of cells (12) in series. A central charge controller (16) and a central discharge controller (22) command a rate of charge to individual charge controllers (14) associated with each cell (12) of the battery for maintaining equalized charge at each cell (12) of the battery. The charging and discharging is initiated upon sensing a predetermined maximum charge threshold voltage (104) and a predetermined minimum discharge threshold voltage (114) at each cell in the series of cells.

摘要翻译： 一种串联具有多个电池（12）的锂离子电池的充放电均衡的系统（10）和方法（100）。 中央充电控制器（16）和中央放电控制器（22）向与电池的每个电池单元（12）相关联的各个充电控制器（14）指示充电速率，以在电池的每个电池（12）处保持均衡的电荷 。 在一系列单元中的每个单元处感测到预定的最大充电阈值电压（104）和预定的最小放电阈值电压（114）时，开始充电和放电。

公开(公告)号：US08152108B2

公开(公告)日：2012-04-10

申请号：US12140978

申请日：2008-06-17

申请人： Craig H. Becker-Irvin ,  Winnie W. Choy

发明人： Craig H. Becker-Irvin ,  Winnie W. Choy

IPC分类号： B64G1/42

CPC分类号： B64G1/428 ,  B64G1/425 ,  B64G1/443 ,  H01L31/02021 ,  H02J1/14 ,  Y02E10/50

摘要： Apparatuses and methods for optimizing power generation of a solar array are disclosed. The bus voltage is regulated with a regulator controlled through one or more reference signals. When the power bus is being used by electrical systems that are tolerant of a higher variable voltage range, the bus voltage can be temporarily set higher by a commanded reference signal to allow additional solar array power to supply to the power bus. The peak power point may be identified through an established relationship with the solar array performance as a function of temperature, season and/or the age of the solar array. In addition, a reference signal controlled by one or more temperature sensors on the solar array may also modify the bus voltage set-point. Improved solar array power may be extracted from spacecraft beginning-of-life to end-of-life operations due to low insertion loss of a direct energy transfer scheme.

摘要翻译： 公开了一种用于优化太阳能电池阵列发电的装置和方法。 总线电压通过一个或多个参考信号控制的调节器进行调节。 当电力总线被容纳在更高可变电压范围的电气系统使用时，总线电压可以通过指令的参考信号临时设置得更高，以允许额外的太阳能阵列电力供应到电力总线。 可以通过与太阳能阵列性能的确定关系来确定峰值功率点，作为太阳能阵列的温度，季节和/或年龄的函数。 此外，由太阳能电池阵列上的一个或多个温度传感器控制的参考信号也可以修改总线电压设定点。 由于直接能量转移方案的低插入损耗，改进的太阳能阵列功率可以从航天器的寿命开始到寿命终止操作。

公开(公告)号：US06177784B1

公开(公告)日：2001-01-23

申请号：US09377439

申请日：1999-08-19

申请人： Winnie W. Choy

发明人： Winnie W. Choy

IPC分类号： G05F156

CPC分类号： G05F1/67

摘要： A diode-resistor network for modifying the gain/bandwidth of the feedback loop. The feedback loop gain modifier circuit comprises two (2) diodes and a resistor coupled and parallel with a resistor in the AC feedback path of an amplifier. The diodes are connected such that one diode conducts on a voltage bus overshoot and the other diode conducts on a voltage bus undershoot. In this manner, during large step load transients, one of the gain modifier circuits diodes conducts thereby coupling the resistors in parallel resulting in a modified the gain/bandwidth of the feedback loop. In this way, the feedback gain modifier circuit does not affect the small signal feedback loop stability because it is only activated when a large transient is present.

摘要翻译： 用于修改反馈回路的增益/带宽的二极管 - 电阻网络。 反馈环路增益调节器电路包括两个（2）二极管和与放大器的AC反馈路径中的电阻器并联的电阻器。 二极管连接使得一个二极管在电压总线过冲上导通，另一个二极管在电压总线下冲导通。 以这种方式，在大的阶跃负载瞬变期间，增益调节器电路二极管中的一个导通，从而并联耦合电阻器，从而改变反馈回路​​的增益/带宽。 以这种方式，反馈增益调节器电路不会影响小信号反馈环路的稳定性，因为它仅在存在大的瞬变时被激活。