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1. 发明授权

US06552508B1 Apparatus and method for optimally controlling flux in an AC motor 失效
标题翻译：用于最佳控制交流电动机通量的装置和方法
公开(公告)号：US06552508B1
公开(公告)日：2003-04-22
申请号：US09570949
申请日：2000-05-15
申请人： Eddy Ying Yin Ho , Anthony Michael Klodowski
发明人： Eddy Ying Yin Ho , Anthony Michael Klodowski
IPC分类号： H02P318
CPC分类号： H02P21/12
摘要： A method and apparatus for controlling flux in an induction motor. During initial start of an induction motor drive the motor flux has to be charged up. The method provides time optimal flux forcing under limited inverter ampere capability. Command stator flux and current are generated and coordinated through a motor flux model. Charging of the motor flux and flux current are accelerated up to nominal operating values in coordinated manner.
摘要翻译：一种用于控制感应电动机中的磁通的方法和装置。在感应电动机驱动的初始启动期间，电动机通量必须被充电。该方法在有限的逆变器安培能力下提供时间最佳的通量强制。命令定子磁通和电流通过电机通量模型产生和协调。电动机磁通和磁通电流的充电以协调的方式加速到额定工作值。

2. 发明授权

US07652441B2 Method and system for starting a sensorless motor 有权
标题翻译：启动无传感器电机的方法和系统
公开(公告)号：US07652441B2
公开(公告)日：2010-01-26
申请号：US11477185
申请日：2006-06-28
申请人： Eddy Ying Yin Ho
发明人： Eddy Ying Yin Ho
IPC分类号： H02P6/22 , H02P1/00
CPC分类号： F04D27/004 , F05D2260/85 , H02P1/029 , H02P3/22 , H02P21/16 , H02P21/34
摘要： A motor drive system for a sensorless motor includes a catch start sequencer that controls the motor drive system to robustly start the motor in the event the motor rotor is rotating in forward or reverse direction prior to activating the motor drive system. In particular, the catch start sequencer causes the motor drive system to initially find and track the rotor position, and then determines the speed and possibly the direction of rotation of the rotor. If the rotor is rotating in the reverse direction, the catch start sequencer controls the motor drive system to slow the speed of rotation and to then start the rotor rotating in the forward direction.
摘要翻译：用于无传感器电动机的电动机驱动系统包括捕捉启动定序器，其在启动电动机驱动系统之前，在马达转子正向或反向旋转的情况下控制电动机驱动系统以鲁棒地起动电动机。特别地，捕捉启动定序器使电机驱动系统初始地找到并跟踪转子位置，然后确定转子的速度和可能的转动方向。如果转子沿相反方向旋转，则起动起动顺序器控制电动机驱动系统以减慢旋转速度，然后启动转子沿正向旋转。

3. 发明授权

US07299708B2 Rotor angle estimation for permanent magnet synchronous motor drive 有权
标题翻译：永磁同步电机驱动转子角度估计
公开(公告)号：US07299708B2
公开(公告)日：2007-11-27
申请号：US10967596
申请日：2004-10-18
申请人： Eddy Ying Yin Ho
发明人： Eddy Ying Yin Ho
IPC分类号： G01L3/02
CPC分类号： H02P6/085 , H02P6/18
摘要： A method of determining a rotor angle in a drive control for a motor, comprising the steps of (a) determining a rotor magnetic flux in the motor; (b) estimating the rotor angle on the basis of the rotor magnetic flux; and (c) correcting the estimated rotor angle on the basis of reactive power input to the motor. Step (a) may include the step of non-ideal integration of stator voltage and current values.Step (b) may include the step of correcting phase errors caused by said non-ideal integration via a PLL circuit with phase compensation (F). Step (c) may include the steps of (1) calculating a first reactive power input value as 1.5*We*(C_Lq*I*I) and a second reactive power input value as 1.5*(Vq*id−Vd*iq); (2) determining a difference between said first and second reactive power input values; and (3) applying said difference to the rotor angle estimated in step (b) to obtain a corrected rotor angle.
摘要翻译：一种确定电动机的驱动控制中的转子角度的方法，包括以下步骤：（a）确定电动机中的转子磁通量; （b）基于转子磁通量估计转子角度; 和（c）基于输入到电动机的无功功率校正估计的转子角度。步骤（a）可以包括定子电压和电流值非理想集成的步骤。步骤（b）可以包括通过具有相位补偿（F）的PLL电路校正由所述非理想积分引起的相位误差的步骤。步骤（c）可以包括以下步骤：（1）计算第一无功功率输入值为1.5 * We *（C_Lq * I * I），第二无功功率输入值为1.5 *（Vq * id-Vd * iq） ; （2）确定所述第一和第二无功功率输入值之间的差; 和（3）将所述差应用于在步骤（b）中估计的转子角度以获得校正的转子角度。

4. 发明授权

US07066034B2 Start-up method and system for permanent magnet synchronous motor drive 有权
标题翻译：永磁同步电机驱动启动方法和系统
公开(公告)号：US07066034B2
公开(公告)日：2006-06-27
申请号：US10828873
申请日：2004-04-20
申请人： Eddy Ying Yin Ho
发明人： Eddy Ying Yin Ho
IPC分类号： G01L3/02
CPC分类号： H02P6/181 , H02P6/085 , H02P6/18 , H02P21/18 , H02P21/32 , H02P21/34 , H02P2203/05
摘要： A method of determining a rotor angle in a drive control for a motor, comprising the steps of (a) determining a rotor magnetic flux in the motor; (b) estimating the rotor angle on the basis of the rotor magnetic flux; and (c) correcting the estimated rotor angle on the basis of reactive power input to the motor. Step (a) may include the step of non-ideal integration of stator voltage and current values. Step (b) may include the step of correcting phase errors caused by said non-ideal integration via a PLL circuit with phase compensation (F). Step (c) may include the steps of (1) calculating a first reactive power input value as 1.5*We*(C_Lq*I*I) and a second reactive power input value as 1.5*(Vq*id−Vd*iq); (2) determining a difference between said first and second reactive power input values; and (3) applying said difference to the rotor angle estimated in step (b) to obtain a corrected rotor angle. At higher motor frequencies, the estimated rotor angle is based on the rotor magnetic flux. At lower frequencies, it is based on a predetermined motor load model which is used in conjunction with a start-up sequencing logic circuit.
摘要翻译：一种确定电动机的驱动控制中的转子角度的方法，包括以下步骤：（a）确定电动机中的转子磁通量; （b）基于转子磁通量估计转子角度; 和（c）基于输入到电动机的无功功率校正估计的转子角度。步骤（a）可以包括定子电压和电流值非理想集成的步骤。步骤（b）可以包括通过具有相位补偿（F）的PLL电路校正由所述非理想积分引起的相位误差的步骤。步骤（c）可以包括以下步骤：（1）计算第一无功功率输入值为1.5 * We *（C_Lq * I * I），第二无功功率输入值为1.5 *（Vq * id-Vd * iq） ; （2）确定所述第一和第二无功功率输入值之间的差; 和（3）将所述差应用于在步骤（b）中估计的转子角度以获得校正的转子角度。在较高的电机频率下，估计的转子角度基于转子磁通量。在较低的频率下，它是基于与启动顺序逻辑电路结合使用的预定电机负载模型。

5. 发明授权

US06777907B2 Current ripple reduction by harmonic current regulation 失效
标题翻译：谐波电流调节的电流纹波降低
公开(公告)号：US06777907B2
公开(公告)日：2004-08-17
申请号：US10285186
申请日：2002-10-31
申请人： Eddy Ying Yin Ho
发明人： Eddy Ying Yin Ho
IPC分类号： H02P534
CPC分类号： H02P21/22 , H02P29/50
摘要： A method and apparatus for regulating a harmonic current component of an inverter fed motor drive system comprises measuring a phase current of the motor, substantially eliminating the fundamental component of the phase current, demodulating the phase current having the fundamental component substantially eliminated to produce a first current signal and providing the first current signal to a PWM control input of an inverter drive of the inverter fed motor drive system to affect the inverter output voltage by driving a first harmonic current of the motor substantially to zero thereby to achieve harmonic current control. More accurate, estimated motor voltages can also be provided by the system.
摘要翻译：用于调节逆变器馈送的电动机驱动系统的谐波电流分量的方法和装置包括测量电动机的相电流，基本上消除相电流的基波分量，解调基本分量基本消除的相电流，以产生第一通过将电动机的一次谐波电流基本上驱动为零来提供第一电流信号给逆变器馈送的电动机驱动系统的逆变器驱动的PWM控制输入，以影响逆变器输出电压，从而实现谐波电流控制。系统也可以提供更准确的估计电机电压。

6. 发明授权

US07602139B2 Signal conditioning apparatus and method for determination of permanent magnet motor rotor position 有权
标题翻译：用于确定永磁电机转子位置的信号调节装置和方法
公开(公告)号：US07602139B2
公开(公告)日：2009-10-13
申请号：US11776943
申请日：2007-07-12
申请人： Eddy Ying Yin Ho
发明人： Eddy Ying Yin Ho
IPC分类号： H02P21/00
CPC分类号： H02P6/185
摘要： An apparatus and method for estimating rotor angle information for the control of permanent magnet AC motors having sinusoidal current excitation. The disclosed motor drive can provide full load operation at very low speeds including zero speed without the use of a shaft position sensing device. The rotor angle is estimated through injection of high frequency current, and rotor angle is extracted by a signal-conditioning algorithm, which utilizes current amplitude differential to discriminate the rotor angle. Rotor angle magnetic axis orientation (North or South pole) at startup is detected by comparing time average current ripple (at signal injection frequency) content between two different levels of d-axis current injection.
摘要翻译：用于估计用于控制具有正弦电流激励的永磁体AC电动机的转子角度信息的装置和方法。所公开的电机驱动器可以以非常低的速度提供满载运行，包括零速度，而不使用轴位置检测装置。通过注入高频电流来估算转子角度，通过信号调节算法提取转子角，利用电流幅度差分来确定转子角度。通过比较两个不同水平的d轴电流注入之间的时间平均电流纹波（信号注入频率）的含量来检测启动时的转子角轴方向（北极或南极）。

7. 发明授权

US07274241B2 Global closed loop control system with DV/DT control and EMI/switching loss reduction 有权
标题翻译：具有DV / DT控制和EMI /开关损耗降低的全局闭环控制系统
公开(公告)号：US07274241B2
公开(公告)日：2007-09-25
申请号：US11398449
申请日：2006-04-05
申请人： Eddy Ying Yin Ho , Yong Li , Jun Honda , David C Tam , Toshio Takahashi
发明人： Eddy Ying Yin Ho , Yong Li , Jun Honda , David C Tam , Toshio Takahashi
IPC分类号： H03K17/16
CPC分类号： H02M1/44 , H02M5/458 , H02M2001/0029 , H02M2001/123 , H03K17/163 , H03K17/168
摘要： A gate driver for a power switch, comprising a gate drive circuit coupled to the gate of the power switch for at least one of turning on and turning off the power switch; a gate voltage control circuit in the gate drive circuit for controlling a voltage applied to the gate of the power switch during at least one of turning on and turning off the power switch; and a signal supplied to the gate voltage control circuit indicative of a voltage rate of change per unit time to be applied in at least one of turning on and turning off the power switch.
摘要翻译：一种用于电源开关的栅极驱动器，包括耦合到电源开关的栅极的栅极驱动电路，用于打开和关闭电源开关中的至少一个; 栅极驱动电路中的栅极电压控制电路，用于在打开和关闭电源开关的至少一个期间控制施加到电源开关的栅极的电压; 以及提供给栅极电压控制电路的信号，其指示在打开和关闭电源开关中的至少一个中施加每单位时间的电压变化率。

8. 发明授权

US07239103B2 Synchronous motor startup lock detection circuit and method 有权
标题翻译：同步电机启动锁定检测电路及方法
公开(公告)号：US07239103B2
公开(公告)日：2007-07-03
申请号：US11066690
申请日：2005-02-25
申请人： Eddy Ying Yin Ho
发明人： Eddy Ying Yin Ho
IPC分类号： H02P21/06
CPC分类号： H02P21/141 , H02P6/21 , H02P21/34 , Y10S388/903
摘要： A startup failure detection system provides an indication of motor startup failure based on a flux amplitude signal value. The flux amplitude signal is derived from motor flux estimations in combination with a rotor angle estimation. The flux amplitude signal value is compared to an upper and lower threshold value, and a startup failure is indicated if the flux amplitude signal value is outside the range determined by the upper and lower threshold value. The motor drive system can be set to attempt a restart when a motor drive startup failure is detected, with the retrial current, duration and the total number of retrials being user selectable.
摘要翻译：启动故障检测系统基于通量幅度信号值提供电动机启动故障的指示。磁通振幅信号是通过与转子角度估计相结合的电机磁通估计得出的。将通量幅度信号值与上限阈值和下限阈值进行比较，如果磁通振幅信号值超出由上限阈值和下限阈值确定的范围，则指示启动故障。当检测到电动机驱动器启动失败时，电机驱动系统可以设置为重新启动，重试电流，持续时间和用户可选择的重试总数。

9. 发明授权

US06559654B2 Method and system for automatic determination of inductance 有权
公开(公告)号：US06559654B2
公开(公告)日：2003-05-06
申请号：US09681404
申请日：2001-03-29
申请人： Eddy Ying Yin Ho , Craig William Moyer , Luis Jose Garces Rivera
发明人： Eddy Ying Yin Ho , Craig William Moyer , Luis Jose Garces Rivera
IPC分类号： G01R2320
CPC分类号： G01R27/2611
摘要： A method and system for determining an inductance value of an inductive element are presented. The method includes energizing the inductive element using an N-pulse AC to DC converter in electrical communication with the inductive element and an AC source. The method further includes determining at each of a plurality of periodic time intervals an inductive element voltage value, an inductive element current value, and an equivalent source phase angle. An Nth harmonic impedance squared value is then determined for the inductive element using the inductive element voltage and current values and the equivalent source phase angles. The inductive element inductance value is then calculated using the Nth harmonic impedance squared value and an AC source frequency value.

10. 发明申请

US20090039817A1 AUDIBLE NOISE REDUCTION FOR SINGLE CURRENT SHUNT PLATFORM 有权
标题翻译：用于单流电平平台的可听噪声减少
公开(公告)号：US20090039817A1
公开(公告)日：2009-02-12
申请号：US12051484
申请日：2008-03-19
申请人： Eddy Ying Yin Ho
发明人： Eddy Ying Yin Ho
IPC分类号： H02P27/08
CPC分类号： H02P29/50 , H02M2001/0009
摘要： A method for reducing audible motor noise in a motor drive, wherein the motor drive includes a motor controller driving a PWM space vector modulator providing gating pulses to an inverter providing phase currents to the phase windings of the motor, and wherein phase currents of the motor are determined by taking samples of the DC link current in a DC link powering the inverter. The method comprises determining the speed of the motor and comparing the speed to a preset threshold, the preset threshold defining a speed at which audible noise is generated by the motor due to a minimum pulse constraint being imposed on the motor phase currents in order to reliably sample the DC link current to measure the phase current. If the speed is below the threshold, the DC link current in the DC link is sampled using a reduced number of current samples for a PWM cycle of the PWM space vector modulator to reduce audible motor noise.
摘要翻译：一种用于减小电动机驱动器中的可听见的电动机噪声的方法，其中所述电动机驱动器包括驱动PWM空间矢量调制器的电动机控制器，PWM空间矢量调制器向向所述电动机的相绕组提供相电流的逆变器提供门控脉冲，并且其中所述电动机通过在逆变器供电的DC链路中获取DC链路电流的样本来确定。该方法包括确定电动机的速度并将速度与预设阈值进行比较，该预设阈值定义了由于施加在电动机相电流上的最小脉冲约束而由电动机产生可听见噪声的速度，以便可靠地对直流链路电流进行采样以测量相电流。如果速度低于阈值，则使用PWM空间矢量调制器的PWM周期的减少数量的当前采样来对DC链路中的DC链路电流进行采样，以减少可听见的电机噪声。

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