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    • 1. 发明申请
    • Modulation methods and apparatus for reducing common mode noise
    • 用于降低共模噪声的调制方法和装置
    • US20070268051A1
    • 2007-11-22
    • US11435651
    • 2006-05-17
    • Russel J. KerkmanQiang YinHaihui Lu
    • Russel J. KerkmanQiang YinHaihui Lu
    • H03K3/017
    • H02M7/5387H02M1/44H02M5/458H02M2001/123
    • A method and apparatus for reducing common mode noise in a three phase pulse width modulated (PWM) system, the method comprising the steps of receiving the first, second and third modulating waveforms, identifying one of the modulating waveforms that is at least one of instantaneously the maximum and instantaneously the minimum of the modulating waveforms as a first identified waveform, wherein comparison of the first identified waveform to the carrier signal would generate a first on-off pulse sequence associated with a phase corresponding to the first identified waveform, generating switch control signals associated with the phase corresponding to the first identified waveform that cause a modified on-off pulse sequence that is phase shifted from the first pulse sequence, using the second and third modulating waveforms to generate second and third on-off pulse sequences corresponding to the second and third phases and providing the modified pulse sequence and the second and third pulse sequences to the one of the inverter and the converter.
    • 一种用于降低三相脉宽调制(PWM)系统中的共模噪声的方法和装置,该方法包括以下步骤:接收第一,第二和第三调制波形,识别至少一个瞬时调制波形之一 最大和瞬时调制波形的最小值作为第一识别波形,其中第一识别波形与载波信号的比较将产生与对应于第一识别波形的相位相关联的第一开 - 关脉冲序列,产生切换控制 使用第二和第三调制波形产生与对应于第一识别波形的相位相关的信号,该第二和第三调制波形产生与第一脉冲序列对应的第二和第三开关脉冲序列, 第二和第三相,并提供修改的脉冲序列和第二和第三脉冲 序列到逆变器和转换器之一。
    • 2. 发明授权
    • Common mode noise reduction in converter systems through modification of single phase switching signal
    • 通过修改单相切换信号,转换器系统中的共模噪声降低
    • US07649756B2
    • 2010-01-19
    • US11435651
    • 2006-05-17
    • Russel J. KerkmanQiang YinHaihui Lu
    • Russel J. KerkmanQiang YinHaihui Lu
    • H02M1/14
    • H02M7/5387H02M1/44H02M5/458H02M2001/123
    • A method and apparatus for reducing common mode noise in a three phase pulse width modulated (PWM) system, the method comprising the steps of receiving the first, second and third modulating waveforms, identifying one of the modulating waveforms that is at least one of instantaneously the maximum and instantaneously the minimum of the modulating waveforms as a first identified waveform, wherein comparison of the first identified waveform to the carrier signal would generate a first on-off pulse sequence associated with a phase corresponding to the first identified waveform, generating switch control signals associated with the phase corresponding to the first identified waveform that cause a modified on-off pulse sequence that is phase shifted from the first pulse sequence, using the second and third modulating waveforms to generate second and third on-off pulse sequences corresponding to the second and third phases and providing the modified pulse sequence and the second and third pulse sequences to the one of the inverter and the converter.
    • 一种用于降低三相脉宽调制(PWM)系统中的共模噪声的方法和装置,该方法包括以下步骤:接收第一,第二和第三调制波形,识别至少一个瞬时调制波形之一 最大和瞬时调制波形的最小值作为第一识别波形,其中第一识别波形与载波信号的比较将产生与对应于第一识别波形的相位相关联的第一开 - 关脉冲序列,产生切换控制 使用第二和第三调制波形产生与对应于第一识别波形的相位相关的信号,该第二和第三调制波形产生与第一脉冲序列对应的第二和第三开关脉冲序列, 第二和第三相,并提供修改的脉冲序列和第二和第三脉冲 序列到逆变器和转换器之一。
    • 3. 发明授权
    • Modulation methods and apparatus for reducing common mode voltages
    • 用于降低共模电压的调制方法和装置
    • US07164254B2
    • 2007-01-16
    • US11068323
    • 2005-02-28
    • Russel J. KerkmanQiang YinHaihui Lu
    • Russel J. KerkmanQiang YinHaihui Lu
    • H02P3/18
    • H02M7/48H02M1/44H02M2001/123
    • Methods and apparatus for reducing the common mode voltage generated by eliminating zero-voltage vectors in a rectifier/inverter variable frequency drive (VFD) system includes comparing three phase voltages to each other to determine a maximum voltage in one phase, a minimum voltage in another phase and a middle voltage in still another phase, inverting phase voltages for one phase having the maximum voltage and another phase having the minimum voltage, comparing the phase voltages to a carrier wave to determine gating signals for three respective phases of the inverter, and inverting gating signals for the one phase having the maximum voltage and for another phase having the minimum voltage to reduce the common mode voltage in the motor. In one embodiment, the zero-voltage vectors are removed by relating a first plurality of gating signals and a plurality of sector logic signals in a logic table to a second plurality of gating signals that are applied to phases of the inverter
    • 整流/变频变频驱动(VFD)系统中消除零电压矢量产生的共模电压的方法和装置包括将三相电压相互比较,以确定一相中的最大电压,另一相中的最小电压 相位和另一相的中间电压,将具有最大电压的一相的相位相电压和具有最小电压的另一相相比较,将相电压与载波进行比较,以确定逆变器的三个相位的门控信号,以及反相 具有最大电压的一相的门控信号以及具有最小电压的另一相位以降低电动机中的共模电压。 在一个实施例中,通过将逻辑表中的第一多个选通信号和多个扇区逻辑信号与施加到反相器的相位的第二多个选通信号相关联来消除零电压矢量
    • 5. 发明授权
    • Converter lifetime improvement method for doubly fed induction generator
    • 双馈感应发电机转换器寿命改善方法
    • US08736091B2
    • 2014-05-27
    • US12818895
    • 2010-06-18
    • Lixiang WeiRussel J. KerkmanRichard A. LukaszewskiHaihui LuZhenhuan Yuan
    • Lixiang WeiRussel J. KerkmanRichard A. LukaszewskiHaihui LuZhenhuan Yuan
    • H02P9/04G01B3/52
    • H02M7/537G01B3/52G05F1/67H02M1/32H02P9/007
    • The present techniques include methods and systems for operating converter to maintain a lifespan of the converter. In some embodiments, the operating frequency of the converter may be increased such that stress may be reduced on the bond wires of the converter. More specifically, embodiments involve calculating the aging parameters for certain operating conditions of the converter operating in a maximum power point tracking (MPPT) mode and determining whether the MPPT operation results in aging the converter to a point which reduces the converter lifespan below a desired lifespan. If the MPPT operation reduces the converter lifespan below the desired lifespan, the frequency of the converter may be increased such that the converter may be controlled to operate at a percentage of MPPT. Thus, in some embodiments, power output may be optimized with respect to maintaining a desired lifespan of the converter.
    • 本技术包括用于操作转换器以保持转换器寿命的方法和系统。 在一些实施例中,可以增加转换器的工作频率,使得可以在转换器的接合线上减小应力。 更具体地,实施例涉及为以最大功率点跟踪(MPPT)模式操作的转换器的某些操作条件计算老化参数,并且确定MPPT操作是否导致转换器老化到将转换器寿命降低到期望寿命以下的点 。 如果MPPT操作将转换器寿命降低到期望的寿命以下,则可以增加转换器的频率,使得可以将转换器控制为以MPPT的百分比进行操作。 因此,在一些实施例中,可以相对于维持转换器的期望寿命来优化功率输出。
    • 7. 发明申请
    • CONVERTER LIFETIME IMPROVEMENT METHOD FOR DOUBLY FED INDUCTION GENERATOR
    • 双极电感诱导发生器的转换器寿命改进方法
    • US20110309875A1
    • 2011-12-22
    • US12818895
    • 2010-06-18
    • Lixiang WeiRussel J. KerkmanRichard A. LukaszewskiHaihui LuZhenhuan Yuan
    • Lixiang WeiRussel J. KerkmanRichard A. LukaszewskiHaihui LuZhenhuan Yuan
    • H03K17/60
    • H02M7/537G01B3/52G05F1/67H02M1/32H02P9/007
    • The present techniques include methods and systems for operating converter to maintain a lifespan of the converter. In some embodiments, the operating frequency of the converter may be increased such that stress may be reduced on the bond wires of the converter. More specifically, embodiments involve calculating the aging parameters for certain operating conditions of the converter operating in a maximum power point tracking (MPPT) mode and determining whether the MPPT operation results in aging the converter to a point which reduces the converter lifespan below a desired lifespan. If the MPPT operation reduces the converter lifespan below the desired lifespan, the frequency of the converter may be increased such that the converter may be controlled to operate at a percentage of MPPT. Thus, in some embodiments, power output may be optimized with respect to maintaining a desired lifespan of the converter.
    • 本技术包括用于操作转换器以保持转换器寿命的方法和系统。 在一些实施例中,可以增加转换器的工作频率,使得可以在转换器的接合线上减小应力。 更具体地,实施例涉及为以最大功率点跟踪(MPPT)模式操作的转换器的某些操作条件计算老化参数,并且确定MPPT操作是否导致转换器老化到将转换器寿命降低到期望寿命以下的点 。 如果MPPT操作将转换器寿命降低到期望的寿命以下,则可以增加转换器的频率,使得可以将转换器控制为以MPPT的百分比进行操作。 因此,在一些实施例中,可以相对于维持转换器的期望寿命来优化功率输出。
    • 9. 发明申请
    • Modulation methods and apparatus for reducing common mode voltages
    • 用于降低共模电压的调制方法和装置
    • US20060192522A1
    • 2006-08-31
    • US11068323
    • 2005-02-28
    • Russel KerkmanQiang YinHaihui Lu
    • Russel KerkmanQiang YinHaihui Lu
    • H02P7/36
    • H02M7/48H02M1/44H02M2001/123
    • Methods and apparatus for reducing the common mode voltage generated by eliminating zero-voltage vectors in a rectifier/inverter variable frequency drive (VFD) system includes comparing three phase voltages to each other to determine a maximum voltage in one phase, a minimum voltage in another phase and a middle voltage in still another phase, inverting phase voltages for one phase having the maximum voltage and another phase having the minimum voltage, comparing the phase voltages to a carrier wave to determine gating signals for three respective phases of the inverter, and inverting gating signals for the one phase having the maximum voltage and for another phase having the minimum voltage to reduce the common mode voltage in the motor. In one embodiment, the zero-voltage vectors are removed by relating a first plurality of gating signals and a plurality of sector logic signals in a logic table to a second plurality of gating signals that are applied to phases of the inverter
    • 整流/变频变频驱动(VFD)系统中消除零电压矢量产生的共模电压的方法和装置包括将三相电压相互比较,以确定一相中的最大电压,另一相中的最小电压 相位和另一相的中间电压,将具有最大电压的一相的相位相电压和具有最小电压的另一相相比较,将相电压与载波进行比较,以确定逆变器的三个相位的门控信号,以及反相 具有最大电压的一相的门控信号以及具有最小电压的另一相位以降低电动机中的共模电压。 在一个实施例中,通过将逻辑表中的第一多个选通信号和多个扇区逻辑信号与施加到反相器的相位的第二多个选通信号相关联来消除零电压矢量