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101. 发明授权

US06617820B2 Auxiliary power conversion by phase-controlled rectification 失效
标题翻译：通过相位控制整流进行辅助电源转换
公开(公告)号：US06617820B2
公开(公告)日：2003-09-09
申请号：US09947294
申请日：2001-09-07
申请人： Douglas S. Carlson , Constantin C. Stancu , James M. Nagashima , Silva Hiti , Khwaja M. Rahman
发明人： Douglas S. Carlson , Constantin C. Stancu , James M. Nagashima , Silva Hiti , Khwaja M. Rahman
IPC分类号： H02P528
CPC分类号： B60L1/003 , B60L11/1803 , B60L11/1887 , B60L15/007 , B60L15/20 , B60L2220/18 , B60L2220/54 , B60L2220/58 , B60L2240/421 , B60L2240/423 , B60L2240/427 , B60L2240/429 , B60L2240/527 , B60L2240/529 , Y02T10/641 , Y02T10/645 , Y02T10/7275 , Y02T90/34
摘要： A method of generating low voltage auxiliary power forms for electric or hybrid vehicle use by tapping power from the traction motor primary winding with a secondary winding and rectifier.
摘要翻译：一种用于通过从具有次级绕组和整流器的牵引电动机初级绕组抽出电力来产生用于电动或混合动力车辆的低压辅助动力形式的方法。

102. 发明授权

US06288515B1 System and method for controlling a surface-mounted permanent magnet synchronous machine drive over a wide speed range using a reference voltage 有权
标题翻译：使用参考电压在宽速度范围内控制表面安装的永磁同步电机驱动的系统和方法
公开(公告)号：US06288515B1
公开(公告)日：2001-09-11
申请号：US09552426
申请日：2000-04-19
申请人： Silva Hiti , Constantin C. Stancu , Dragan S. Maric
发明人： Silva Hiti , Constantin C. Stancu , Dragan S. Maric
IPC分类号： H02P528
CPC分类号： H02P6/085 , H02P21/08
摘要： A surface-mounted permanent magnet synchronous machine drive and a method of controlling the machine drive. Flux weakening and current regulating loops cooperate to provide automatic transition to the flux weakening mode (operation above base speed), regardless of DC bus voltage, load or other operating conditions. The modulation index (d) is used as a condition for automatic start of flux weakening operation is very useful because this point can be easily changed by software when necessary, regardless of the value of DC bus voltage. This feature provides significant performance improvement. No look-up tables are used in the flux weakening loop. The on-set point for flux weakening is automatically adjusted, and may be changed through software. An appropriate d-axis current component is injected over the entire speed range, providing the maximum available torque (which corresponds to the q-axis current component).
摘要翻译：一种表面安装的永磁同步电机驱动器和一种控制机器驱动的方法。磁通弱化和电流调节回路协作，以提供自由过渡到磁通弱化模式（高于基本速度的运行），而不管直流母线电压，负载或其他工作条件如何。使用调制指数（d）作为自动启动磁通弱化操作的条件是非常有用的，因为无论DC总线电压值如何，该点在必要时可以通过软件容易地改变。此功能可显着提升性能。磁通弱化回路中没有使用查找表。磁通弱化的设定点自动调整，可通过软件更改。在整个速度范围内注入适当的d轴电流分量，提供最大可用转矩（对应于q轴电流分量）。

103. 发明授权

US09106177B2 Method and system for sensorless control of an electric motor 有权
标题翻译：电动机无传感器控制的方法和系统
公开(公告)号：US09106177B2
公开(公告)日：2015-08-11
申请号：US13344241
申请日：2012-01-05
申请人： Yo Chan Son , Leah Dunbar , Silva Hiti
发明人： Yo Chan Son , Leah Dunbar , Silva Hiti
IPC分类号： H02P21/00 , H02P21/14 , H02P21/13 , H02P27/06
CPC分类号： H02P21/14 , H02P21/13 , H02P27/06
摘要： Methods and systems for controlling an electric motor are provided. An estimated rotor flux angular position error is generated based on estimated back electromotive force (EMF) values, and based on the estimated rotor flux angular position error, an estimated rotor flux angular position, an estimated electrical synchronous frequency and/or an estimated rotor frequency can be generated.
摘要翻译：提供了用于控制电动机的方法和系统。基于估计的反向电动势（EMF）值产生估计的转子磁通角位置误差，并且基于估计的转子磁通角位置误差，估计的转子磁通角位置，估计的电同步频率和/或估计的转子频率可以生成。

104. 发明授权

US08228016B2 Gain adjustment to improve torque linearity in a field weakening region 有权
标题翻译：增益调整，以提高弱磁区域的扭矩线性度
公开(公告)号：US08228016B2
公开(公告)日：2012-07-24
申请号：US12510042
申请日：2009-07-27
申请人： Gabriel Gallegos-Lopez , Milun Perisic , Silva Hiti
发明人： Gabriel Gallegos-Lopez , Milun Perisic , Silva Hiti
IPC分类号： G05B11/36
CPC分类号： H02P21/06 , B60L15/025 , B60L2200/26 , B60L2220/14 , H02P6/08 , H02P21/0003 , H02P21/0089 , Y02T10/643
摘要： Systems and methods are disclosed to improve torque linearity of an electric machine when operating in a field-weakening region. The systems and methods adjust the q-axis and the d-axis components of the stator current commands of the electric machine using a flux weakening control loop and a torque linearity control loop such that torque linearity is maintained when the machine operates in a field weakening region of operation.
摘要翻译：公开了系统和方法，以在电场弱化区域中操作时改善电机的扭矩线性度。系统和方法使用磁通弱化控制回路和扭矩线性控制回路调整电机的定子电流指令的q轴和d轴分量，使得当机器在弱磁场中运行时，保持扭矩线性度经营区域

105. 发明授权

US08115430B2 Methods, systems and apparatus for controlling operation of two alternating current (AC) machines 有权
标题翻译：用于控制两台交流（AC）机器的操作的方法，系统和装置
公开(公告)号：US08115430B2
公开(公告)日：2012-02-14
申请号：US12473964
申请日：2009-05-28
申请人： Gabriel Gallegos-Lopez , James M. Nagashima , Milun Perisic , Silva Hiti
发明人： Gabriel Gallegos-Lopez , James M. Nagashima , Milun Perisic , Silva Hiti
IPC分类号： H02P21/00 , H02P27/00
CPC分类号： H02P5/74 , B60L15/007 , B60L15/08 , B60L2200/26 , B60L2210/46 , H02P21/22 , Y02T10/643 , Y02T10/645 , Y02T10/7241
摘要： A system is provided for controlling two AC machines. The system comprises a DC input voltage source that provides a DC input voltage, a voltage boost command control module (VBCCM), a five-phase PWM inverter module coupled to the two AC machines, and a boost converter coupled to the inverter module and the DC input voltage source. The boost converter is designed to supply a new DC input voltage to the inverter module having a value that is greater than or equal to a value of the DC input voltage. The VBCCM generates a boost command signal (BCS) based on modulation indexes from the two AC machines. The BCS controls the boost converter such that the boost converter generates the new DC input voltage in response to the BCS. When the two AC machines require additional voltage that exceeds the DC input voltage required to meet a combined target mechanical power required by the two AC machines, the BCS controls the boost converter to drive the new DC input voltage generated by the boost converter to a value greater than the DC input voltage.
摘要翻译：提供一种用于控制两台交流电机的系统。该系统包括提供DC输入电压的DC输入电压源，升压指令控制模块（VBCCM），耦合到两个AC电机的五相PWM逆变器模块，以及耦合到逆变器模块和直流输入电压源。升压转换器被设计为向逆变器模块提供具有大于或等于直流输入电压值的新的直流输入电压。 VBCCM基于来自两台交流电机的调制指数生成升压指令信号（BCS）。 BCS控制升压转换器，使升压转换器响应于BCS产生新的直流输入电压。当两台交流电机需要超过满足两台交流电机所需的组合目标机械功率所需的直流输入电压的额外电压时，BCS控制升压转换器将升压转换器产生的新的直流输入电压驱动到一个值大于直流输入电压。

106. 再颁专利

USRE42200E1 Fault handling of inverter driven PM motor drives 有权
标题翻译：变频器驱动的PM电机驱动的故障处理
公开(公告)号：USRE42200E1
公开(公告)日：2011-03-08
申请号：US11962370
申请日：2007-12-21
申请人： Brian Welchko , Jonathan B. Huse , Silva Hiti , Brendan M. Conlon , Constantin C. Stancu , Khwaja M. Rahman , David Tang , William R. Cawthorne
发明人： Brian Welchko , Jonathan B. Huse , Silva Hiti , Brendan M. Conlon , Constantin C. Stancu , Khwaja M. Rahman , David Tang , William R. Cawthorne
IPC分类号： G05B9/02
CPC分类号： G05B9/02 , B60L3/0061 , B60L3/0069 , B60L3/04 , B60L15/2009 , Y02T10/645 , Y02T10/72 , Y02T10/7275
摘要： An apparatus includes a multi-phase inverter, a fault detector to indicate a detection of a fault, a sensor to provide a speed signal indicative of whether a speed of a PM motor is greater than a transition speed, and a controller. The controller is operable to apply either an open-circuit response or a short-circuit response to the multi-phase inverter. The open-circuit response is applied when the speed of the PM motor is greater less than the transition speed and a fault is detected. The short-circuit response is applied when the speed of the PM motor is less greater than the transition speed and the fault is detected. The transition speed is either a fixed predetermined speed or an adjusted predetermined speed.
摘要翻译：一种装置包括多相逆变器，用于指示故障检测的故障检测器，提供指示PM电动机的速度是否大于转换速度的速度信号的传感器以及控制器。控制器可操作地对多相逆变器施加开路响应或短路响应。当PM电机的转速大于转换速度并且检测到故障时，应用开路响应。当PM电机的速度小于转换速度并检测到故障时，应用短路响应。过渡速度是固定的预定速度或调整的预定速度。

107. 发明授权

US07759886B2 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：US07759886B2
公开(公告)日：2010-07-20
申请号：US11829298
申请日：2007-07-27
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 IPM machine. The systems and methods adjust the q-axis and the d-axis components of the stator current commands of the IPM machine using a flux weakening and a torque linearity control loop respectively. Thereby, torque linearity is maintained during the field weakening region of operation of the IPM machine.
摘要翻译：公开了系统和方法以在IPM机器的弱磁区域中提供扭矩线性度。系统和方法分别使用磁通弱化和扭矩线性控制回路来调整IPM机床的定子电流指令的q轴和d轴分量。因此，在IPM机器的操作的弱磁区域期间保持扭矩线性度。

108. 发明申请

US20090067203A1 THREE PHASE INVERTER WITH IMPROVED LOSS DISTRIBUTION 有权
标题翻译：具有改进的丢失分配的三相逆变器
公开(公告)号：US20090067203A1
公开(公告)日：2009-03-12
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： H02M7/537 , H02M7/44 , H02P23/00
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。

109. 发明申请

US20080055938A1 PWM METHOD FOR CYCLOCONVERTER 失效
标题翻译：循环切换器的PWM方法
公开(公告)号：US20080055938A1
公开(公告)日：2008-03-06
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： H02M7/00
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。

110. 发明申请

US20070216341A1 Method and apparatus for PWM control of voltage source inverter 有权
标题翻译：电压源逆变器PWM控制方法及装置
公开(公告)号：US20070216341A1
公开(公告)日：2007-09-20
申请号：US11376915
申请日：2006-03-16
申请人： Slobodan Gataric , Brian Welchko , Steven Schulz , Silva Hiti , Steve West
发明人： Slobodan Gataric , Brian Welchko , Steven Schulz , Silva Hiti , Steve West
IPC分类号： H02P27/04
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.
摘要翻译：考虑到逆变器非线性限制，PWM方法和装置用于交流电机的损耗最小化控制。该方法包括：基于开关周期向AC电动机提供电压，当开关周期的第一相支路的占空比小于最小值时，将零矢量的占空比加到开关周期的每个相位支路上并且当第二相位脚的第二占空比大于最大占空比时，从开关周期的每个相位段减去零矢量的占空比。最小占空比和最大占空比表示失真区域。

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