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71. 发明授权

US07652858B2 Protection for permanent magnet motor control circuits 有权
标题翻译：永磁电机控制电路保护
公开(公告)号：US07652858B2
公开(公告)日：2010-01-26
申请号：US11758974
申请日：2007-06-06
申请人： David Tang , Brian A Welchko , Silva Hiti , Mark L Selogie
发明人： David Tang , Brian A Welchko , Silva Hiti , Mark L Selogie
IPC分类号： H02H7/09
CPC分类号： H02H7/0838
摘要： Methods and apparatus are provided for protecting a motor control circuit in a permanent magnet electric motor system. The permanent magnet electric motor system includes a permanent magnet electric motor having a predetermined number of windings corresponding to the phases of the permanent magnet electric motor and a direct current (DC) bus coupled to a power source for providing operational power for the electric motor system. A motor control circuit is connected to the DC bus for receiving the operational power therefrom and is connected to the windings of the permanent magnet electric motor for controlling the permanent magnet electric motor. A protection circuit is connected to the DC bus for receiving the voltage therefrom for operation of the protection circuit and for detecting predetermined motor control circuit fault conditions from voltage sensed on the DC bus and in response thereto providing protection for the motor control circuit.
摘要翻译：提供了用于保护永磁电动机系统中的电动机控制电路的方法和装置。永磁电动机系统包括具有对应于永磁电动机的相位的预定数量的绕组的永磁电动机和耦合到用于为电动机系统提供动力的电源的直流（DC）母线。电动机控制电路连接到DC总线，用于从其接收操作电力，并连接到用于控制永磁电动机的永磁电动机的绕组。保护电路连接到DC总线，用于从其接收电压用于保护电路的操作，并且用于从DC总线上感测到的电压检测预定的电机控制电路故障状况，并响应于此为电机控制电路提供保护。

72. 发明授权

US07518335B2 Method and apparatus for PWM control of voltage source inverter to minimize current sampling errors in electric drives 有权
标题翻译：用于电压源逆变器PWM控制的方法和装置，以最小化电力驱动器中的电流采样误差
公开(公告)号：US07518335B2
公开(公告)日：2009-04-14
申请号：US11462454
申请日：2006-08-04
申请人： Stephen T. West , Brian Welchko , Steven E. Schulz , Silva Hiti
发明人： Stephen T. West , Brian Welchko , Steven E. Schulz , Silva Hiti
IPC分类号： H02P27/08
CPC分类号： H02P27/08
摘要： A method for controlling an alternating current (AC) motor includes choosing a pulse sequence based on a ripple current in the AC motor at a sampling instant; and providing a voltage to the AC motor based on the pulse sequence.
摘要翻译：一种用于控制交流（AC）电动机的方法包括：在采样时刻根据交流电动机的纹波电流选择脉冲序列; 并且基于脉冲序列向AC电动机提供电压。

73. 发明申请

US20090069142A1 METHOD AND SYSTEM FOR CONTROLLING POWER INVERTERS IN ELECTRIC DRIVES OF VEHICLES WITH TWO-MODE TRANSMISSIONS 有权
标题翻译：用双向传输控制车辆电力驱动的电力逆变器的方法和系统
公开(公告)号：US20090069142A1
公开(公告)日：2009-03-12
申请号：US11853884
申请日：2007-09-12
申请人： Brian A. Welchko , Steven E. Schulz , Silva Hiti
发明人： Brian A. Welchko , Steven E. Schulz , Silva Hiti
IPC分类号： F16H3/66 , B60K1/00 , B60K6/00
CPC分类号： F16H3/728 , B60K6/445 , B60L11/123 , B60L11/14 , B60L15/025 , B60L2200/26 , F16H3/66 , F16H2037/0866 , F16H2037/102 , F16H2037/104 , F16H2037/106 , F16H2200/0043 , F16H2200/201 , F16H2200/2041 , Y02T10/6217 , Y02T10/6239 , Y02T10/643 , Y02T10/646 , Y02T10/7005 , Y02T10/7077 , Y02T10/7258
摘要： Methods and systems for driving an automobile are provided. The system includes a prime mover power source and a two-mode, compound-split, electromechanical transmission, including first and second motors, coupled to the prime mover power source, a power inverter coupled to the first and second motors, and a processor coupled to the first and second motors and the power inverter. The processor is configured to modify a signal controlling the power inverter utilizing a first voltage distortion compensation method if a modulation index of the signal is less than a first modulation index value and modify the signal utilizing a second voltage distortion compensation method if the modulation index is at least equal to the first modulation index value.
摘要翻译：提供了用于驾驶汽车的方法和系统。该系统包括原动机电源和耦合到原动机电源的耦合到原动机电源的第一和第二电动机的双模式，复合分离机电变速器，耦合到第一和第二电动机的电力逆变器，以及耦合到到第一和第二电机和电源逆变器。处理器被配置为如果信号的调制指数小于第一调制指数值，则使用第一电压失真补偿方法来修改控制功率逆变器的信号，并且如果调制指数为至少等于第一调制指数值。

74. 发明授权

US07483282B2 PWM method for cycloconverter 失效
标题翻译：循环换流器的PWM方法
公开(公告)号：US07483282B2
公开(公告)日：2009-01-27
申请号：US11468001
申请日：2006-08-29
申请人： Lateef A. Kajouke , Silva Hiti
发明人： Lateef A. Kajouke , Silva Hiti
IPC分类号： H02M7/48 , H02M5/00
CPC分类号： H02M5/297 , H02M7/4807
摘要： A method of using a cycloconverter switches a first switch of the first topology type to an on state after a magnitude of a current through an output inductor becomes less than a predetermined current threshold, and switches a second switch of the first topology type to an off state a first time after switching the first switch to the on state. The cycloconverter includes nodes on a first port, nodes on a second port, a switch pair coupled between a first node of the first port and a first node of the second port, a switch pair coupled between a second node of the first port and a first node of the second port, a switch pair coupled between a first node of the first port and a second node of the second port, and a switch pair coupled between a second node of the first port and a second node of the second port. Each switch pair includes a switch of each topology type.
摘要翻译：在通过输出电感器的电流的大小变得小于预定电流阈值之后，使用循环换流器的方法将第一拓扑类型的第一开关切换到导通状态，并且将第一拓扑类型的第二开关切换到关闭在将第一开关切换到接通状态之后，首先进行状态。循环变换器包括第一端口上的节点，第二端口上的节点，耦合在第一端口的第一节点和第二端口的第一节点之间的交换机对，耦合在第一端口的第二节点和第二端口的第一节点，耦合在第一端口的第一节点和第二端口的第二节点之间的开关对，以及耦合在第一端口的第二节点和第二端口的第二节点之间的开关对。每个交换机对包括每种拓扑类型的交换机。

75. 发明申请

US20080197800A1 REDUCTION OF SUBHARMONIC OSCILLATION AT HIGH FREQUENCY OPERATION OF A POWER INVERTER 有权
标题翻译：降低功率变换器高频运行时的次谐波振荡
公开(公告)号：US20080197800A1
公开(公告)日：2008-08-21
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： H02P27/04
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。

76. 发明申请

US20080094023A1 METHOD AND APPARATUS FOR PWM CONTROL OF VOLTAGE SOURCE INVERTER TO MINIMIZE CURRENT SAMPLING ERRORS IN ELECTRIC DRIVES 有权
标题翻译：用于电压源逆变器的PWM控制以最小化电驱动电流采样误差的方法和装置
公开(公告)号：US20080094023A1
公开(公告)日：2008-04-24
申请号：US11462454
申请日：2006-08-04
申请人： Stephen T. West , Brian Welchko , Steven E. Schulz , Silva Hiti
发明人： Stephen T. West , Brian Welchko , Steven E. Schulz , Silva Hiti
IPC分类号： H02P27/08 , H02P27/00
CPC分类号： H02P27/08
摘要： A method for controlling an alternating current (AC) motor includes choosing a pulse sequence based on a ripple current in the AC motor at a sampling instant; and providing a voltage to the AC motor based on the pulse sequence.
摘要翻译：一种用于控制交流（AC）电动机的方法包括：在采样时刻根据交流电动机的纹波电流选择脉冲序列; 并且基于脉冲序列向AC电动机提供电压。

77. 发明申请

US20080030155A1 GEARLESS WHEEL MOTOR DRIVE SYSTEM 有权
标题翻译：无齿轮电机驱动系统
公开(公告)号：US20080030155A1
公开(公告)日：2008-02-07
申请号：US11845469
申请日：2007-08-27
申请人： Nitinkumar Patel , Silva Hiti , Khwaja Rahman
发明人： Nitinkumar Patel , Silva Hiti , Khwaja Rahman
IPC分类号： H02P21/00
CPC分类号： H02K1/2793 , B60K6/26 , B60K7/0007 , B60K2007/0038 , B60K2007/0092 , B60L1/02 , B60L3/003 , B60L3/0046 , B60L3/0061 , B60L7/14 , B60L11/1803 , B60L11/1881 , B60L15/025 , B60L15/06 , B60L15/08 , B60L15/20 , B60L15/2009 , B60L2210/40 , B60L2220/14 , B60L2220/16 , B60L2220/44 , B60L2220/50 , B60L2240/36 , B60L2240/421 , B60L2240/423 , B60L2240/425 , B60L2240/427 , B60L2240/429 , B60L2240/526 , B60L2240/527 , B60L2240/529 , B60L2240/547 , B60L2250/26 , B60L2270/145 , H02K7/14 , H02K21/24 , H02K29/03 , H02P21/06 , Y02T10/641 , Y02T10/643 , Y02T10/644 , Y02T10/7241 , Y02T10/7275 , Y02T90/34
摘要： Methods and apparatus are provided for an electric vehicle embodying an axial flux traction motor directly coupled to a wheel thereof. The traction motor comprises a stator having coils for producing a magnetic field, an annular rotor magnetically coupled to the stator and mechanically to an output shaft. Permanent magnets of alternating polarity are mounted on the annular rotor. Magnetic shunts bridge a portion of the stator slots above the coils. The magnets are arranged in groups with group-to-group spacing exceeding magnet-to-magnet spacing. Adjacent edges of the magnets diverge. The method comprises, looking up d- and q-axis currents to provide the requested torque and motor speed for the available DC voltage, combining at least one of the d- and q-axis currents with a field weakening correction term, converting the result from synchronous to stationary frame and operating an inverter therewith to provide current to the coils of the motor.
摘要翻译：提供了一种实现轴向通量牵引电动机的电动车辆的方法和装置，其直接联接到其车轮。牵引电动机包括具有用于产生磁场的线圈的定子，与定子磁耦合并机械地连接到输出轴的环形转子。交替极性的永磁体安装在环形转子上。磁分路桥接线圈上方的定子槽的一部分。磁体以组间距离超过磁体与磁体的间距分组排列。磁体的相邻边缘发散。该方法包括：查找d轴和q轴电流以为可用的直流电压提供所要求的转矩和电动机速度，将d轴和q轴电流中的至少一个与弱磁修正项组合，转换结果从同步到静止的框架并且与其一起操作逆变器以向电动机的线圈提供电流。

78. 发明授权

US07307401B2 Method and apparatus for PWM control of voltage source inverter 有权
公开(公告)号：US07307401B2
公开(公告)日：2007-12-11
申请号：US11376915
申请日：2006-03-16
申请人： Slobodan Gataric , Brian Welchko , Steven E. Schulz , Silva Hiti , Steve T. West
发明人： Slobodan Gataric , Brian Welchko , Steven E. Schulz , Silva Hiti , Steve T. West
IPC分类号： H02P23/00
CPC分类号： H02P27/12 , H02M7/5387 , H02M2007/53876
摘要： PWM methods and apparatus are provided for loss minimized control of AC motors taking into consideration inverter non-linear limitations. The method comprises providing a voltage to the AC motor based on a switching cycle, adding a duty cycle of a zero vector to each phase leg of the switching cycle when a duty cycle of a first phase leg of the switching cycle is less than a minimum duty cycle, and subtracting the duty cycle of the zero vector from each phase leg of the switching cycle when a second duty cycle of a second phase leg is greater than a maximum duty cycle. The minimum duty cycle and maximum duty cycle indicate distortion regions.

79. 发明授权

US07286375B1 Dead-time compensation method for electric drives 有权
标题翻译：电驱动器的死区补偿方法
公开(公告)号：US07286375B1
公开(公告)日：2007-10-23
申请号：US11625962
申请日：2007-01-23
申请人： Brian A Welchko , Silva Hiti , Steven E. Schulz
发明人： Brian A Welchko , Silva Hiti , Steven E. Schulz
IPC分类号： H02M1/12 , H02M7/68 , H02M7/44
CPC分类号： H02M7/53803 , H02M2001/385
摘要： Methods and apparatus are provided for compensating for a deviation in voltage output of a phase leg inverter when dead-time periods are inserted to prevent shoot-through failures. The method includes determining a pulse width for an input signal to the inverter such that the inverter voltage output is a desired amount. The pulse width is based on the non-inverted or inverted pulse sequences of two carrier signals and the polarity of current through the inverter. An amount of pulse width is added to the input signal when the current is positive, and an amount of pulse width is subtracted from the input signal when the current is negative. An additional amount of pulse width is added to or subtracted from the input signal depending on whether the carrier signal sequence changes from a non-inverted signal to an inverted signal or changes from an inverted signal to a non-inverted signal, respectively.
摘要翻译：提供了方法和装置，用于在插入死区时间时补偿相位臂逆变器的电压输出偏差，以防止直通故障。该方法包括：确定用于反相器的输入信号的脉冲宽度，使得逆变器电压输出为期望的量。脉冲宽度基于两个载波信号的非反相或反相脉冲序列以及通过反相器的电流极性。当电流为正时，将一定量的脉冲宽度加到输入信号上，当电流为负时，从输入信号中减去一定量的脉冲宽度。根据载波信号序列是否从非反相信号改变为反相信号，或分别从反相信号改变为非反相信号，将附加量的脉冲宽度加到输入信号或从输入信号中减去。

80. 发明申请

US20050110450A1 Decoupling a harmonic signal from a signal path 失效
标题翻译：从信号路径去耦合一个谐波信号
公开(公告)号：US20050110450A1
公开(公告)日：2005-05-26
申请号：US10720626
申请日：2003-11-24
申请人： Constantin Stancu , Silva Hiti , Steven Schulz , Nitinkumar Patel
发明人： Constantin Stancu , Silva Hiti , Steven Schulz , Nitinkumar Patel
IPC分类号： G05B11/36 , H02P6/18 , H02P21/14 , H04B20060101
CPC分类号： H02P6/185 , H02P6/183 , H02P21/18 , H02P2203/11 , H02P2207/01
摘要： A method for decoupling a harmonic signal from an input signal wherein the harmonic signal is harmonic relative to a signal other than the input signal. An angular position of the other signal is multiplied by a value representing the harmonic to obtain an angular position multiple. A harmonic decoupling block uses the angular position multiple to obtain correction signals representing the harmonic signal, and subtracts the correction signals from the input current to decouple the harmonic signal from the input signal. This method is useful for decoupling unwanted harmonics from currents into which high-frequency signals have been injected for control of electric motors.
摘要翻译：一种用于将谐波信号与输入信号去耦的方法，其中谐波信号是相对于输入信号以外的信号的谐波。将另一信号的角位置乘以表示谐波的值，以获得角位置倍数。谐波去耦块使用角位置倍数来获得表示谐波信号的校正信号，并从输入电流中减去校正信号，以将谐波信号与输入信号去耦。该方法对于将不想要的谐波与已注入高频信号的电流去耦以控制电动机是有用的。

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