公开(公告)号：US07615887B2

公开(公告)日：2009-11-10

申请号：US11684023

申请日：2007-03-09

Applicant: Constantin C. Stancu ,  Daniel L. Kowalewski ,  Robert T. Dawsey

Inventor： Constantin C. Stancu ,  Daniel L. Kowalewski ,  Robert T. Dawsey

IPC: H02J1/12

CPC classification number: H02M3/1582 ,  H02M3/156 ,  Y10T307/511 ,  Y10T307/516

Abstract: A method and system for operating a power converter having an electrical component and a switch coupled to a voltage source are provided. A signal is received that is representative of a desired current flow through the electrical component. A signal is generated that is representative of a difference between the desired current flow and an actual current flow through the electrical component. A duty cycle for the switch is calculated based on the signal representative of the difference and a voltage generated by the voltage source.

Abstract translation: 提供了一种用于操作具有电气部件的功率转换器和耦合到电压源的开关的方法和系统。 接收代表通过电气部件的期望电流的信号。 产生代表期望电流与通过电气部件的实际电流之间的差异的信号。 基于代表差异的信号和由电压源产生的电压来计算开关的占空比。

公开(公告)号：US07609050B2

公开(公告)日：2009-10-27

申请号：US11676576

申请日：2007-02-20

Applicant: Constantin C. Stancu ,  Daniel L. Kowalewski

Inventor： Constantin C. Stancu ,  Daniel L. Kowalewski

IPC: G01N27/416

CPC classification number: G01R19/0092 ,  H02M3/1582

Abstract: A method and system for determining a current flowing through an electrical component are provided. A switch electrically coupled to the electrical component and two voltage sources is activated. The activation of the switch causes current to flow through the electrical component after an amount of time. The amount of time between said activating the switch and the flow of current through the electrical component is determined. The current flowing through the electrical component is measured to determine a measured current value. The measured current value is modified based at least in part on the amount of time between said activating the switch and the flow of current through the electrical component.

Abstract translation: 提供了一种用于确定流过电气部件的电流的方法和系统。 电耦合到电气部件和两个电压源的开关被激活。 在一段时间后，开关的激活导致电流流过电气部件。 确定所述启动开关与通过电气部件的电流之间的时间量。 测量流过电气部件的电流以确定测量的电流值。 至少部分地基于所述启动开关与通过电气部件的电流之间的时间量来修改所测量的电流值。

公开(公告)号：US20080219032A1

公开(公告)日：2008-09-11

申请号：US11684023

申请日：2007-03-09

Applicant: Constantin C. Stancu ,  Daniel L. Kowalewski ,  Robert T. Dawsey

Inventor： Constantin C. Stancu ,  Daniel L. Kowalewski ,  Robert T. Dawsey

IPC: H02M3/335

CPC classification number: H02M3/1582 ,  H02M3/156 ,  Y10T307/511 ,  Y10T307/516

Abstract: A method and system for operating a power converter having an electrical component and a switch coupled to a voltage source are provided. A signal is received that is representative of a desired current flow through the electrical component. A signal is generated that is representative of a difference between the desired current flow and an actual current flow through the electrical component. A duty cycle for the switch is calculated based on the signal representative of the difference and a voltage generated by the voltage source.

Abstract translation: 提供了一种用于操作具有电气部件的功率转换器和耦合到电压源的开关的方法和系统。 接收代表通过电气部件的期望电流的信号。 产生代表期望电流与通过电气部件的实际电流之间的差异的信号。 基于代表差异的信号和由电压源产生的电压来计算开关的占空比。

公开(公告)号：US20080196950A1

公开(公告)日：2008-08-21

申请号：US11676576

申请日：2007-02-20

Applicant: Constantin C. Stancu ,  Daniel L. Kowalewski

Inventor： Constantin C. Stancu ,  Daniel L. Kowalewski

IPC: G01R19/00 ,  B60K1/00

CPC classification number: G01R19/0092 ,  H02M3/1582

Abstract: A method and system for determining a current flowing through an electrical component are provided. A switch electrically coupled to the electrical component and two voltage sources is activated. The activation of the switch causes current to flow through the electrical component after an amount of time. The amount of time between said activating the switch and the flow of current through the electrical component is determined. The current flowing through the electrical component is measured to determine a measured current value. The measured current value is modified based at least in part on the amount of time between said activating the switch and the flow of current through the electrical component.

Abstract translation: 提供了一种用于确定流过电气部件的电流的方法和系统。 电耦合到电气部件和两个电压源的开关被激活。 在一段时间后，开关的激活导致电流流经电气部件。 确定所述启动开关与通过电气部件的电流之间的时间量。 测量流过电气部件的电流以确定测量的电流值。 至少部分地基于所述启动开关与通过电气部件的电流之间的时间量来修改所测量的电流值。

公开(公告)号：US20080198633A1

公开(公告)日：2008-08-21

申请号：US11675203

申请日：2007-02-15

Applicant: Constantin C. Stancu ,  Daniel L. Kowalewski ,  Robert T. Dawsey

Inventor： Constantin C. Stancu ,  Daniel L. Kowalewski ,  Robert T. Dawsey

IPC: H02M3/335

CPC classification number: H02M3/00

Abstract: A method and system for operating a power converter having an electrical component and a switch coupled to a voltage source are provided. A signal is received that is representative of a desired current flow through the electrical component. A signal is generated that is representative of a difference between the desired current flow and an actual current flow through the electrical component. A duty cycle for the switch is calculated based on the signal representative of the difference and a voltage generated by the voltage source.

Abstract translation: 提供了一种用于操作具有电气部件的功率转换器和耦合到电压源的开关的方法和系统。 接收代表通过电气部件的期望电流的信号。 产生代表期望电流与通过电气部件的实际电流之间的差异的信号。 基于代表差异的信号和由电压源产生的电压来计算开关的占空比。

公开(公告)号：US07675192B2

公开(公告)日：2010-03-09

申请号：US11153171

申请日：2005-06-15

Applicant: David Tang ,  Silva Hiti ,  Constantin C. Stancu ,  Gregory S. Smith

Inventor： David Tang ,  Silva Hiti ,  Constantin C. Stancu ,  Gregory S. Smith

IPC: B60L1/00 ,  B60L3/00 ,  H02G3/00

CPC classification number: B60L11/1887 ,  H02P6/10 ,  H02P25/098 ,  Y02T10/642 ,  Y02T90/16 ,  Y02T90/34

Abstract: A control system for a vehicle powered by a fuel cell includes a voltage conversion device that communicates with the fuel cell through a voltage bus and a propulsion system that is selectively powered by the fuel cell through the voltage bus and that selectively generates a ripple current in the voltage bus. The voltage conversion device is regulated to selectively generate a counter-ripple current that reduces the ripple current.

Abstract translation: 用于由燃料电池供电的车辆的控制系统包括电压转换装置，其通过电压总线和推进系统与燃料电池连通，该推进系统由燃料电池通过电压总线选择性供电，并且选择性地产生纹波电流 电压总线。 调节电压转换器件以选择性地产生减小纹波电流的反纹波电流。

公开(公告)号：US20090278405A1

公开(公告)日：2009-11-12

申请号：US12117543

申请日：2008-05-08

Applicant: Constantin C. Stancu ,  Robert T. Dawsey ,  Mark L. Selogie

Inventor： Constantin C. Stancu ,  Robert T. Dawsey ,  Mark L. Selogie

IPC: B60L1/00 ,  H02J1/00 ,  H01S4/00 ,  H02J3/00

CPC classification number: H02M1/10 ,  Y10T29/49002 ,  Y10T307/658 ,  Y10T307/675

Abstract: An embodiment of a system for multiple source power conversion is implemented in a vehicle that includes an alternating current (AC) power source and first and second direct current (DC) power sources. The system includes an inverter, a DC-to-DC converter, and a controller. The controller receives external commands, inverter feedback signals, and DC-to-DC converter feedback signals, and executes and inverter control algorithm and DC-to-DC converter control algorithm. An embodiment of a method for multiple source power conversion between an AC power source, and first and second DC power sources includes receiving external commands from a remote source, inverter feedback signals from an inverter, and DC-to-DC converter feedback signals from a DC-to-DC converter. The method also includes executing an inverter control algorithm and a DC-to-DC converter control algorithm to generate drive signals for the inverter and DC-to-DC converter, respectively, based on the received commands and feedback signals.

Abstract translation: 用于多源功率转换的系统的实施例在包括交流（AC）电源和第一和第二直流（DC）电源的车辆中实现。 该系统包括逆变器，DC-DC转换器和控制器。 控制器接收外部命令，逆变器反馈信号和DC-DC转换器反馈信号，并执行逆变器控制算法和DC-DC转换器控制算法。 一种用于在AC电源和第一和第二DC电源之间进行多源电力转换的方法的实施例包括从远程源接收外部命令，来自逆变器的逆变器反馈信号和来自逆变器的DC-DC转换器反馈信号 直流到直流转换器。 该方法还包括执行逆变器控制算法和DC-DC转换器控制算法，以分别基于接收到的命令和反馈信号来产生逆变器和DC-DC转换器的驱动信号。

公开(公告)号：US20080179980A1

公开(公告)日：2008-07-31

申请号：US11668910

申请日：2007-01-30

Applicant: ROBERT T. DAWSEY ,  Constantin C. Stancu ,  Eric R. Ostrom ,  Young Doo

Inventor： ROBERT T. DAWSEY ,  Constantin C. Stancu ,  Eric R. Ostrom ,  Young Doo

IPC: H02K1/27

CPC classification number: H02K1/2766

Abstract: A rotor for an interior permanent magnet machine has a rotor body having an output shaft and a first cavity filled with magnetic material. Second cavities are disposed inboard of the first cavities and are not filled with magnetic material. Non-magnetic rods extend through the second cavities and protrude beyond end faces of the rotor body. The rods are press-fit in blind bores formed in non-magnetic end plates disposed adjacent the end faces of the rotor body. Shrink disks are shrunk around projecting ends of the output shaft in abutting relation with the end plates. In order to prevent induced voltage from generating current in the cage formed by the rods and end plates, an oxide layer is disposed between the rods and blind bores in the end plates.

公开(公告)号：US06984960B2

公开(公告)日：2006-01-10

申请号：US10634528

申请日：2003-08-05

Applicant: Constantin C. Stancu ,  Silva Hiti

Inventor： Constantin C. Stancu ,  Silva Hiti

IPC: H02P5/34 ,  H02P7/42 ,  G05B11/01

CPC classification number: H02M1/12 ,  H02M7/53873 ,  H02M2007/53876 ,  H02P21/0089 ,  H02P21/50 ,  H02P29/50

Abstract: A drive system that is suitable for high bandwidth current control of a three-phase voltage source inverter in the overmodulation region includes a feedback path that has a harmonic decoupling block that subtracts selected harmonic components from signals representative of a corresponding motor phase current signal. The harmonic decoupling block thereby generates corrected feedback signals. The drive system also includes subtractor blocks that subtract the corrected feedback signals from signals representative of open-loop magnetizing reference currents to generate difference signals. Also included is a modulation block that utilizes the difference signals to produce signals to drive a three-phase voltage source inverter in an overmodulated six-step mode.

Abstract translation: 适用于过调制区域中三相电压源逆变器的高带宽电流控制的驱动系统包括具有谐波去耦块的反馈路径，该谐波去耦块从代表对应的电动机相电流信号的信号中减去所选谐波分量。 因此，谐波去耦块产生校正的反馈信号。 驱动系统还包括从代表开环磁化参考电流的信号中减去经校正的反馈信号以产生差分信号的减法器块。 还包括利用差分信号产生信号以以过调制的六步模式驱动三相电压源逆变器的调制块。

公开(公告)号：US06222335B1

公开(公告)日：2001-04-24

申请号：US09492662

申请日：2000-01-27

Applicant: Silva Hiti ,  Constantin C. Stancu

Inventor： Silva Hiti ,  Constantin C. Stancu

IPC: H02P700

CPC classification number: B60L15/2045 ,  B60L11/1803 ,  B60L15/025 ,  B60L2220/12 ,  H02P21/22 ,  Y02T10/643 ,  Y02T10/7005 ,  Y02T10/7283

Abstract: A control algorithm or method for use in controlling a voltage-fed induction machine. The control algorithm includes the following steps. The DC link voltage supplied to an inverter driving the induction machine is monitored. When the DC link voltage is high enough, the algorithm controls the amount of current supplied to the induction machine to provide current controlled operation of the induction machine. When the DC link voltage is not high enough to control the current under transient conditions, the induction machine is controlled by imposing the maximum possible phase voltage and optimal slip angle on the machine to provide maximal torque per ampere operation of the induction machine. The maximal torque per ampere operation is performed when either of the following conditions is met: a) the torque level required by the induction machine is such that efficiency optimization cannot be performed, or b) current regulators approach saturation. The current controlled operation is performed when a) the torque level required by the induction machine is at a level that allows efficiency optimization, and b) the current regulators are not near saturation. The efficiency optimization in the current controlled mode is performed by using a single constant over the whole operating range.

Abstract translation: 一种用于控制电压感应电机的控制算法或方法。 控制算法包括以下步骤。 监控提供给驱动感应电机的变频器的直流母线电压。 当DC链路电压足够高时，算法控制提供给感应电机的电流量，以提供感应电机的电流控制操作。 当直流母线电压不足以在瞬态条件下控制电流时，通过在机器上施加最大可能的相电压和最佳滑移角来控制感应电机，以提供感应电机的每安培运行的最大扭矩。 当满足以下任一条件时，执行每安培运行的最大扭矩：a）感应电机所需的转矩水平使得不能执行效率优化，或b）电流调节器接近饱和。 当a）感应电机所需的转矩水平处于允许效率优化的水平，以及b）电流调节器不接近饱和时，执行电流控制操作。 通过在整个工作范围内使用单个常数来执行电流控制模式下的效率优化。