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91. 发明授权

US06222335B1 Method of controlling a voltage-fed induction machine 有权
标题翻译：控制电压感应电机的方法
公开(公告)号：US06222335B1
公开(公告)日：2001-04-24
申请号：US09492662
申请日：2000-01-27
申请人： Silva Hiti , Constantin C. Stancu
发明人： Silva Hiti , Constantin C. Stancu
IPC分类号： H02P700
CPC分类号： B60L15/2045 , B60L11/1803 , B60L15/025 , B60L2220/12 , H02P21/22 , Y02T10/643 , Y02T10/7005 , Y02T10/7283
摘要： 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.
摘要翻译：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。

92. 发明授权

US09240744B2 Methods, systems and apparatus for adjusting current and/or torque commands used to control operation of an asynchronous machine 有权
标题翻译：用于调节用于控制异步机的操作的电流和/或转矩指令的方法，系统和装置
公开(公告)号：US09240744B2
公开(公告)日：2016-01-19
申请号：US13547938
申请日：2012-07-12
申请人： Jihoon Jang , Bon Ho Bae , Silva Hiti
发明人： Jihoon Jang , Bon Ho Bae , Silva Hiti
IPC分类号： H02P1/04 , H02P21/06
CPC分类号： H02P21/06 , H02P2207/01
摘要： Embodiments of the present disclosure relate to methods, systems and apparatus for adjusting current and/or torque commands used to control operation of an asynchronous machine based on rotor flux of the asynchronous machine.
摘要翻译：本公开的实施例涉及用于基于异步机的转子通量来调整用于控制异步机的操作的电流和/或转矩指令的方法，系统和装置。

93. 发明授权

US08664901B2 Method and system for estimating electrical angular speed of a permanent magnet machine 有权
标题翻译：用于估计永磁机器电角速度的方法和系统
公开(公告)号：US08664901B2
公开(公告)日：2014-03-04
申请号：US13397463
申请日：2012-02-15
申请人： Milun Perisic , Yo Chan Son , Gabriel Gallegos-Lopez , Silva Hiti
发明人： Milun Perisic , Yo Chan Son , Gabriel Gallegos-Lopez , Silva Hiti
IPC分类号： H02H7/08
CPC分类号： H02P21/18 , H02P21/24
摘要： Methods, systems and apparatus are provided for estimating electrical angular speed of a permanent magnet machine based on two-phase stationary reference frame feedback stator current samples, and a dimensionless gain (K) that is computed based on a sampling time (T) and machine parameters.
摘要翻译：提供了用于估计基于两相静止参考系反馈定子电流样本的永磁体机器电角速度的方法，系统和装置，以及基于采样时间（T）和机器计算的无量纲增益（K）参数。

94. 发明授权

US08203236B2 Dual voltage-source inverter system and method 有权
标题翻译：双电源逆变器系统及方法
公开(公告)号：US08203236B2
公开(公告)日：2012-06-19
申请号：US12621173
申请日：2009-11-18
申请人： Gabriel Gallegos-Lopez , Milun Perisic , Silva Hiti , George John , Gregory S. Smith , Khiet Le , Duc Q. Phan
发明人： Gabriel Gallegos-Lopez , Milun Perisic , Silva Hiti , George John , Gregory S. Smith , Khiet Le , Duc Q. Phan
IPC分类号： H02J9/00
CPC分类号： H02M1/10 , H02M7/48 , Y10T307/549 , Y10T307/615 , Y10T307/729
摘要： Systems and methods are disclosed for a dual voltage-source inverter system. The systems and methods selectively couple a first voltage source and a second voltage source to an inverter via a controllable switch.
摘要翻译：公开了用于双电压源逆变器系统的系统和方法。系统和方法通过可控开关选择性地将第一电压源和第二电压源耦合到逆变器。

95. 发明授权

US07923953B2 Linearity for field weakening in an interior permanent magnet machine 有权
标题翻译：内部永久磁铁机械场弱化的线性度
公开(公告)号：US07923953B2
公开(公告)日：2011-04-12
申请号：US12786104
申请日：2010-05-24
申请人： Gabriel Gallegos-Lopez , Yo Chan Son , Milun Perisic , Silva Hiti
发明人： Gabriel Gallegos-Lopez , Yo Chan Son , Milun Perisic , Silva Hiti
IPC分类号： H03K5/00
CPC分类号： B60L15/025 , B60L2200/26 , B60L2220/14 , H02P21/0089 , H02P21/06 , Y02T10/643
摘要： Systems and methods are disclosed to provide torque linearity in the field-weakening region for an electric (e.g., IPM) machine. The systems and methods implement a field weakening and a torque linearity control loop for linearizing torque generated by an electric machine. As a result, torque linearity is maintained when the electric machine operates in the field weakening region.
摘要翻译：公开了系统和方法以在电动（例如，IPM）机器的弱磁区域中提供扭矩线性度。该系统和方法实现了减弱电磁场和扭矩线性控制回路，用于线性化电机产生的转矩。结果，当电机在弱磁区域中运行时，扭矩线性度得以保持。

96. 发明授权

US07616466B2 Three phase inverter with improved loss distribution 有权
标题翻译：三相逆变器具有改善的损耗分布
公开(公告)号：US07616466B2
公开(公告)日：2009-11-10
申请号：US11853873
申请日：2007-09-12
申请人： Sibaprasad Chakrabarti , Silva Hiti , George John , Gregory S. Smith , Milun Perisic , Gholamreza Esmaili
发明人： Sibaprasad Chakrabarti , Silva Hiti , George John , Gregory S. Smith , Milun Perisic , Gholamreza Esmaili
IPC分类号： H02M7/5387 , H02P27/04
CPC分类号： H02M7/5395
摘要： An inverter circuit couples a DC voltage source having a primary side and a reference side to an electric motor or other AC machine having multiple electrical phases. An inverter circuit includes switches, diodes and a controller. For each of the electrical phases, a first switch couples the electrical phase to the primary side of the DC voltage source and a second switch couples the electrical phase with the reference side of the DC voltage source. For each of the first and second switches, an associated anti-parallel diode is configured to provide an electrical path when the switch associated with the diode is inactive. The controller is coupled to the switching inputs of each of the first and second switches and is configured to provide a control signal thereto, wherein the control signal provided to each switch comprises, in a low frequency mode, a first portion and a second portion, wherein the first portion comprises a first pulse width modulation scheme and the second portion comprises a second pulse width modulation scheme different from the first modulation scheme.
摘要翻译：逆变器电路将具有初级侧和参考侧的DC电压源耦合到具有多个电相的电动机或其它AC电机。逆变器电路包括开关，二极管和控制器。对于每个电相，第一开关将电相耦合到DC电压源的初级侧，而第二开关将电相与DC电压源的参考侧耦合。对于第一和第二开关中的每一个，相关联的反并联二极管被配置为当与二极管相关联的开关不活动时提供电路径。控制器耦合到第一和第二开关中的每一个的开关输入，并且被配置为向其提供控制信号，其中提供给每个开关的控制信号在低频模式下包括第一部分和第二部分，其中所述第一部分包括第一脉冲宽度调制方案，并且所述第二部分包括不同于所述第一调制方案的第二脉冲宽度调制方案。

97. 发明申请

US20090072770A1 POWER INVERTER MODULE THERMAL MANAGEMENT 有权
标题翻译：电力逆变器模块热管理
公开(公告)号：US20090072770A1
公开(公告)日：2009-03-19
申请号：US11853862
申请日：2007-09-12
申请人： Yo Chan Son , Gabriel Gallegos-Lopez , Silva Hiti , Michael Milani , Milun Perisic
发明人： Yo Chan Son , Gabriel Gallegos-Lopez , Silva Hiti , Michael Milani , Milun Perisic
IPC分类号： H02H7/08 , H02P23/14 , B60L11/00 , H02P29/02
CPC分类号： B60L3/12 , B60L3/06 , B60L2240/525 , H02P29/68 , Y02T10/642
摘要： According to an example embodiment, a method is provided for limiting an operational temperature of a motor. The method includes generating a maximum allowable current I*S(max) for a motor based on a temperature difference between a temperature reference T* of a power inverter module and a semiconductor device temperature T of the power inverter module. The method further includes generating a maximum allowable torque T*e(max) based on the maximum allowable current I*S(max) and a maximum allowable flux Ψ*S(max), and using the maximum allowable torque T*e(max) to limit the torque command T*e in order to suppress the semiconductor device temperature T to below the temperature reference T*.
摘要翻译：根据示例性实施例，提供了一种用于限制电动机的工作温度的方法。该方法包括基于电力逆变器模块的温度参考值T *和功率逆变器模块的半导体器件温度T之间的温差产生电动机的最大允许电流I * S（max）。该方法还包括基于最大允许电流I * S（max）和最大允许通量Psi * S（max）产生最大允许转矩T * e（max），并使用最大允许转矩T * e ）以限制转矩指令T * e，以便将半导体器件温度T抑制到低于温度参考值T *。

98. 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。

99. 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。

100. 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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