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41. 发明授权

US07576500B2 Method and system for operating a motor to reduce noise in an electric vehicle 有权
标题翻译：用于操作电动机以减少电动车辆噪声的方法和系统
公开(公告)号：US07576500B2
公开(公告)日：2009-08-18
申请号：US11756349
申请日：2007-05-31
申请人： Nitinkumar R. Patel , Mohammad N. Anwar , Silva Hiti , Brian A Welchko , Steven E. Schulz , Lisa M. Talarico
发明人： Nitinkumar R. Patel , Mohammad N. Anwar , Silva Hiti , Brian A Welchko , Steven E. Schulz , Lisa M. Talarico
IPC分类号： H02P1/00
CPC分类号： H02P27/08 , B60L2270/142 , H02M1/14 , Y02T10/642
摘要： Methods and systems for operating a motor coupled to an electrical bus in a vehicle are provided. Selected resonant frequencies of the electrical bus are determined. The selected resonant frequencies include a low resonant frequency and a high resonant frequency. Power is provided to the motor through at least one switch operating at a switching frequency. The switching frequency is controlled as a function of a rate of operation of the motor. The function is characterized by one of a first substantially linear portion having a first slope when the switching frequency is less than or equal to a selected switching frequency and a second substantially linear portion having a second slope if the switching frequency is greater than the selected frequency, the selected switching frequency being greater than the low resonant frequency and a substantially linear portion having a y-intercept being greater than the low resonant frequency.
摘要翻译：提供了用于操作耦合到车辆中的电气总线的马达的方法和系统。确定电气总线的选定谐振频率。所选择的谐振频率包括低谐振频率和高谐振频率。通过至少一个以开关频率工作的开关将电力提供给电动机。开关频率根据电机的运行速度进行控制。该功能的特征在于当开关频率小于或等于所选择的开关频率时具有第一斜率的第一基本线性部分中的一个以及具有第二斜率的第二基本线性部分，如果开关频率大于所选择的频率，所选择的开关频率大于低谐振频率，并且具有大于低谐振频率的y截距的基本线性部分。

42. 发明申请

US20090066163A1 TWO-SOURCE SERIES INVERTER 有权
标题翻译：双源系列逆变器
公开(公告)号：US20090066163A1
公开(公告)日：2009-03-12
申请号：US11853202
申请日：2007-09-11
申请人： Gabriel Gallegos-Lopez , Milun Perisic , George John , Gregory S. Smith , Silva Hiti
发明人： Gabriel Gallegos-Lopez , Milun Perisic , George John , Gregory S. Smith , Silva Hiti
IPC分类号： H02J3/00
CPC分类号： H02M1/10 , B60L11/1868 , B60L2200/26 , H02M7/48 , H02P2201/07 , Y02T10/642 , Y02T10/7005 , Y02T10/7066 , Y10T307/50 , Y10T307/615 , Y10T307/729
摘要： Systems and methods are disclosed for a two-source series inverter. The systems and methods combine operation of a first voltage source and a second voltage source in series powering a novel voltage combining arrangement and a conventional inverter via a switch configuration to power a load. The switch configuration is controlled by a plurality of control signals generated by a controller based on a variety of control modes, and feedback signals.
摘要翻译：公开了用于双源串联逆变器的系统和方法。所述系统和方法将通过开关配置串联供电的新型电压组合装置和常规逆变器的第一电压源和第二电压源的操作相结合以对负载供电。开关配置由控制器基于各种控制模式和反馈信号产生的多个控制信号来控制。

43. 发明申请

US20090033274A1 SYSTEM FOR USING A MULTI-PHASE MOTOR WITH A DOUBLE-ENDED INVERTER SYSTEM 有权
标题翻译：使用具有双端逆变器系统的多相电动机的系统
公开(公告)号：US20090033274A1
公开(公告)日：2009-02-05
申请号：US12110946
申请日：2008-04-28
申请人： Milun PERISIC , Silva HITI , Brian A. WELCHKO , Sibaprasad CHAKRABARTI , James M. NAGASHIMA , Gregory S. SMITH , George JOHN
发明人： Milun PERISIC , Silva HITI , Brian A. WELCHKO , Sibaprasad CHAKRABARTI , James M. NAGASHIMA , Gregory S. SMITH , George JOHN
IPC分类号： H02P27/06 , H02P4/00
CPC分类号： H02P4/00 , B60L3/0046 , B60L11/005 , B60L11/14 , B60L11/1803 , B60L11/1868 , B60L11/1887 , B60L2210/40 , B60L2210/46 , B60L2220/58 , H02P25/22 , Y02T10/641 , Y02T10/642 , Y02T10/70 , Y02T10/7022 , Y02T10/7066 , Y02T10/7077 , Y02T10/7241 , Y02T90/34
摘要： Systems and apparatus are provided for an inverter system for use in a vehicle having a first energy source and a second energy source. The inverter system comprises an electric motor having a first set of windings and a second set of windings. The inverter system further comprises a first inverter coupled to the first energy source and adapted to drive the electric motor, wherein the first set of windings are coupled to the first inverter. The inverter system also comprises a second inverter coupled to the second energy source and adapted to drive the electric motor, wherein the second set of windings are coupled to the second inverter. A controller is coupled to the first inverter and the second inverter to achieve desired power flow between the first energy source, the second energy source, and the electric motor.
摘要翻译：为具有第一能量源和第二能量源的车辆中使用的逆变器系统提供系统和装置。逆变器系统包括具有第一组绕组和第二组绕组的电动机。逆变器系统还包括耦合到第一能量源并适于驱动电动机的第一逆变器，其中第一组绕组耦合到第一逆变器。逆变器系统还包括耦合到第二能量源并适于驱动电动机的第二逆变器，其中第二组绕组耦合到第二逆变器。控制器耦合到第一逆变器和第二逆变器，以在第一能量源，第二能量源和电动机之间实现期望的功率流。

44. 发明申请

US20090026895A1 ELECTRIC MOTOR SYSTEMS 有权
标题翻译：电动马达系统
公开(公告)号：US20090026895A1
公开(公告)日：2009-01-29
申请号：US11829275
申请日：2007-07-27
申请人： Sibaprasad Chakrabarti , Silva Hiti
发明人： Sibaprasad Chakrabarti , Silva Hiti
IPC分类号： H02K3/28 , H02K11/00
CPC分类号： H02K3/28 , H02K11/33 , Y02T10/7258
摘要： Electric motor systems are provided for use in vehicles. In an embodiment, by way of example only, the system includes a first inverter, a second inverter, and a motor electrically coupled to the first and the second inverters. The motor includes a stator including a plurality of slots formed therein and a plurality of windings. The plurality of windings is disposed at least partially in the slots, and each winding includes a first coil and a second coil. The first coil has a first number of turns, and the second coil has a second number of turns that is unequal to the first number of turns. The first coil of each winding is electrically coupled to the first inverter, and the second coil of each winding is electrically coupled to the second inverter.
摘要翻译：提供电动机系统用于车辆。在一个实施例中，仅作为示例，该系统包括电耦合到第一和第二逆变器的第一逆变器，第二逆变器和电动机。电动机包括定子，其包括形成在其中的多个槽和多个绕组。多个绕组至少部分地设置在槽中，并且每个绕组包括第一线圈和第二线圈。第一线圈具有第一圈数，并且第二线圈具有不等于第一圈数的第二圈数。每个绕组的第一线圈电耦合到第一反相器，并且每个绕组的第二线圈电耦合到第二反相器。

45. 发明授权

US07471526B2 Method and apparatus to reduce PWM voltage distortion in electric drives 有权
标题翻译：减少电力驱动器中PWM电压失真的方法和装置
公开(公告)号：US07471526B2
公开(公告)日：2008-12-30
申请号：US11676574
申请日：2007-02-20
申请人： Brian A Welchko , Bonho Bae , Steven E. Schulz , Silva Hiti
发明人： Brian A Welchko , Bonho Bae , Steven E. Schulz , Silva Hiti
IPC分类号： H02M7/537 , H02P23/00
CPC分类号： H03K3/017 , H02M7/5395 , H02M2001/0025 , H02P27/06
摘要： Methods and apparatus are provided for reducing voltage distortion effects at low speed operation in electric drives. The method comprises receiving a first signal having a duty cycle with a range between minimum and maximum achievable duty cycles, producing a second duty cycle based on the minimum achievable duty cycle if the duty cycle is within a distortion range and less than a first clipping value, producing a second duty cycle based on the closer of minimum and maximum pulse widths if the duty cycle is within the distortion range and between the first and a second clipping value, producing a second duty cycle based on the maximum achievable duty cycle if the duty cycle is within the distortion range and greater than the second clipping value, and transmitting a second signal to the voltage source inverter having the second duty cycle.
摘要翻译：提供了用于在电驱动器中降低低速运行时的电压失真效应的方法和装置。该方法包括接收具有在最小和最大可实现占空比之间的范围的占空比的第一信号，如果占空比在失真范围内并小于第一限幅值，则基于最小可实现占空比产生第二占空比如果占空比在失真范围内，并且在第一和第二限幅值之间，则基于更小的最小和最大脉冲宽度产生第二占空比，如果占空比基于最大可实现的占空比，则产生第二占空比循环处于失真范围内并且大于第二限幅值，并且将第二信号发送到具有第二占空比的电压源逆变器。

46. 发明申请

US20080298785A1 METHOD AND SYSTEM FOR OPERATING A MOTOR TO REDUCE NOISE IN AN ELECTRIC VEHICLE 有权
标题翻译：用于操作电动机以减少电动车噪声的方法和系统
公开(公告)号：US20080298785A1
公开(公告)日：2008-12-04
申请号：US11756349
申请日：2007-05-31
申请人： Nitinkumar R. Patel , Mohammad N. Anwar , Silva Hiti , Brian A. Welchko , Steven E. Schulz , Lisa M. Talarico
发明人： Nitinkumar R. Patel , Mohammad N. Anwar , Silva Hiti , Brian A. Welchko , Steven E. Schulz , Lisa M. Talarico
IPC分类号： H02P7/285
CPC分类号： H02P27/08 , B60L2270/142 , H02M1/14 , Y02T10/642
摘要： Methods and systems for operating a motor coupled to an electrical bus in a vehicle are provided. Selected resonant frequencies of the electrical bus are determined. The selected resonant frequencies include a low resonant frequency and a high resonant frequency. Power is provided to the motor through at least one switch operating at a switching frequency. The switching frequency is controlled as a function of a rate of operation of the motor. The function is characterized by one of a first substantially linear portion having a first slope when the switching frequency is less than or equal to a selected switching frequency and a second substantially linear portion having a second slope if the switching frequency is greater than the selected frequency, the selected switching frequency being greater than the low resonant frequency and a substantially linear portion having a y-intercept being greater than the low resonant frequency.
摘要翻译：提供了用于操作耦合到车辆中的电气总线的马达的方法和系统。确定电气总线的选定谐振频率。所选择的谐振频率包括低谐振频率和高谐振频率。通过至少一个以开关频率工作的开关将电力提供给电动机。开关频率根据电机的运行速度进行控制。该功能的特征在于当开关频率小于或等于所选择的开关频率时具有第一斜率的第一基本线性部分中的一个以及具有第二斜率的第二基本线性部分，如果开关频率大于所选择的频率，所选择的开关频率大于低谐振频率，并且具有大于低谐振频率的y截距的基本线性部分。

47. 发明申请

US20080297100A1 APPARATUS, SYSTEMS, AND METHODS FOR REDUCING VOLTAGE SOURCE INVERTER LOSSES 有权
标题翻译：降低电压源逆变器损耗的装置，系统和方法
公开(公告)号：US20080297100A1
公开(公告)日：2008-12-04
申请号：US11756421
申请日：2007-05-31
申请人： Silva Hiti , Steven E. Schulz , Brian A. Welchko
发明人： Silva Hiti , Steven E. Schulz , Brian A. Welchko
IPC分类号： H02P27/04
CPC分类号： H02M7/53875 , B60L15/025 , B60L2210/42 , B60L2240/70 , H02M2001/0054 , H02M2007/53876 , Y02T10/643 , Y02T10/7241 , Y02T10/7291 , Y02T90/16
摘要： Apparatus, systems, and methods are provided for reducing voltage source inverter losses. One apparatus includes a sensor couplable to the motor and configured to sense an operating frequency of the motor and an amount of torque produced by the motor. The apparatus also includes a controller coupled to the sensor, the controller configured to determine a zero vector modulation (ZVM) based on the sensed frequency and torque. A system includes means for sensing a threshold output frequency of the motor and means for sensing a threshold torque of the motor. The system also includes means for determining a ZVM for the inverter based on the sensed threshold frequency and threshold torque. One method includes sensing that a motor is operating below a threshold frequency and is producing torque above a threshold torque amount. The method also includes determining a ZVM for the inverter based on the sensed frequency and torque.
摘要翻译：提供了用于减少电压源逆变器损耗的装置，系统和方法。一种装置包括可耦合到电动机并且被配置为感测电动机的工作频率和由电动机产生的转矩的量的传感器。该装置还包括耦合到传感器的控制器，该控制器被配置成基于感测到的频率和转矩来确定零矢量调制（ZVM）。系统包括用于感测电动机的阈值输出频率的装置和用于感测电动机的阈值转矩的装置。该系统还包括用于基于感测的阈值频率和阈值扭矩来确定用于逆变器的ZVM的装置。一种方法包括检测电动机工作在阈值频率以下并且产生高于阈值扭矩量的转矩。该方法还包括基于感测的频率和转矩来确定逆变器的ZVM。

48. 发明授权

US07449859B2 Reduction of subharmonic oscillation at high frequency operation of a power inverter 有权
标题翻译：降低变频器高频运行时的次谐波振荡
公开(公告)号：US07449859B2
公开(公告)日：2008-11-11
申请号：US11676527
申请日：2007-02-20
申请人： Bonho Bae , Nitinkumar R. Patel , Steven E. Schulz , Silva Hiti
发明人： Bonho Bae , Nitinkumar R. Patel , Steven E. Schulz , Silva Hiti
IPC分类号： H02P23/00
CPC分类号： B60L15/025 , B60L11/1803 , B60L15/20 , B60L2210/20 , B60L2220/14 , H02P21/04 , Y02T10/643 , Y02T10/7005 , Y02T10/725 , Y02T10/7275
摘要： A control architecture for an electrical inverter includes a synchronous frame current regulator and a stationary frame current regulator. The stationary frame current regulator receives input currents that represent filtered versions of stationary frame currents that correspond to the inverter output currents. The control architecture employs an adaptive filter module that filters the stationary frame currents to remove the fundamental motor frequency component (and its related harmonics), thus extracting any low frequency harmonic components. The stationary frame current regulator processes the low frequency components, while the synchronous frame current regulator processes the fundamental frequency component, resulting in suppression of low frequency oscillations in the inverter output.
摘要翻译：用于电力逆变器的控制架构包括同步电流调节器和静止电流调节器。静态框架电流调节器接收表示对应于逆变器输出电流的静态框电流的滤波版本的输入电流。控制架构采用自适应滤波器模块，对固定电流进行滤波，去除基波电机频率分量（及其相关谐波），从而提取任何低频谐波分量。静态电流调节器处理低频分量，而同步电流调节器处理基频分量，从而抑制逆变器输出中的低频振荡。

49. 发明授权

US07432683B2 PWM pattern sequence to reduce losses in voltage source inverters 有权
标题翻译： PWM模式序列，以减少电压源逆变器的损耗
公开(公告)号：US07432683B2
公开(公告)日：2008-10-07
申请号：US11561513
申请日：2006-11-20
申请人： Brian Welchko , Steven E. Schulz , Silva Hiti , Stephen T. West
发明人： Brian Welchko , Steven E. Schulz , Silva Hiti , Stephen T. West
IPC分类号： H02P5/34
CPC分类号： H02P27/06 , H02M7/53875 , H02M2007/53876 , H02P21/00
摘要： A method for controlling an inverter uses sequences of predetermined states where each state uniquely corresponding to a set of control signals provided to the inverter that is coupled to a motor. The method includes repeatedly applying a first center null timing sequence of the states while monitoring a zero crossing condition and then changing the repeated application of the first center null timing sequence of the states into a repeated application of a second center null timing sequence of states when the monitoring detects a zero crossing condition. The repeated application of the first center null timing sequence sequentially provides the inverter with a first predetermined sequence of sets of control signals. The monitoring of a zero crossing condition monitors for a zero crossing condition in an electrical current flowing between the inverter and a terminal of the motor. The second center null timing sequence defines a second predetermined sequence of sets of control signals.
摘要翻译：用于控制逆变器的方法使用预定状态的序列，其中每个状态唯一对应于提供给耦合到电动机的逆变器的一组控制信号。该方法包括在监视过零状态的同时重复地应用状态的第一中心零点定时序列，然后将状态的第一中心零点定时序列的重复应用改变为重复应用第二中心零点定时时序序列，监控检测到过零状态。重复应用第一中心零点定时序列顺序地向逆变器提供第一预定的一组控制信号。过零状态的监视监视在逆变器和电动机的端子之间流动的电流中的过零状态。第二中心零点定时序列定义了控制信号组的第二预定序列。

50. 发明申请

US20080224649A1 ANTI-WINDUP CONTROL FOR A CURRENT REGULATOR OF A PULSE WIDTH MODULATION INVERTER 有权
标题翻译：脉冲宽度调制逆变器的电流调节器的反向控制
公开(公告)号：US20080224649A1
公开(公告)日：2008-09-18
申请号：US11685729
申请日：2007-03-13
申请人： Bonho Bae , Steven E. Schulz , Silva Hiti , Nitinkumar R. Patel
发明人： Bonho Bae , Steven E. Schulz , Silva Hiti , Nitinkumar R. Patel
IPC分类号： H02P27/04
CPC分类号： H02P21/22
摘要： A control architecture for an electrical inverter includes a command limiter that is realized as a circular voltage limiter. The command limiter includes a Cartesian-to-polar converter coupled to a command source such as a synchronous frame current regulator. The Cartesian-to-polar converter provides magnitude and phase components for d-q command voltages. The command limiter further includes a magnitude limiter that limits the magnitude component to the maximum fundamental voltage component of the inverter, and a polar-to-Cartesian converter that converts the limited magnitude component and the phase component into modified d-q command voltages.
摘要翻译：用于逆变器的控制结构包括实现为圆形电压限制器的指令限制器。命令限制器包括耦合到诸如同步帧电流调节器的命令源的笛卡尔到极化转换器。笛卡尔到极化转换器为d-q指令电压提供幅度和相位分量。命令限制器还包括限幅器，其将幅度分量限制到逆变器的最大基波电压分量;以及极限到笛卡尔转换器，其将受限幅度分量和相位分量转换为修改的d-q指令电压。

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