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公开(公告)号：US20200240694A1
公开(公告)日：2020-07-30
申请号：US16262367
申请日：2019-01-30
Applicant: REGAL BELOIT AMERICA, INC.
Inventor： Paul S. Mullin , Daniel E. Thompson
Abstract: A fan drive circuit for a variable speed fan motor in a cooling system, includes an inverter configured to supply a current signal to stator windings of the variable speed fan motor, a frequency detection circuit coupled to an output stage of an inverter of a compressor motor of the cooling system and configured to detect a first frequency of a compressor current signal at the output stage of a variable speed compressor drive circuit and generate a frequency signal, and a digital signal processor (DSP) coupled to the inverter and the frequency detection circuit. The DSP is configured to receive the frequency signal corresponding to the first frequency from the frequency detection circuit, select a second frequency corresponding to the first frequency at which to operate the variable speed fan motor, and transmit control signals to the inverter to supply current to the stator windings at the second frequency.
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公开(公告)号：US10801766B2
公开(公告)日：2020-10-13
申请号：US16262367
申请日：2019-01-30
Applicant: REGAL BELOIT AMERICA, INC.
Inventor： Paul S. Mullin , Daniel E. Thompson
Abstract: A fan drive circuit for a variable speed fan motor in a cooling system, includes an inverter configured to supply a current signal to stator windings of the variable speed fan motor, a frequency detection circuit coupled to an output stage of an inverter of a compressor motor of the cooling system and configured to detect a first frequency of a compressor current signal at the output stage of a variable speed compressor drive circuit and generate a frequency signal, and a digital signal processor (DSP) coupled to the inverter and the frequency detection circuit. The DSP is configured to receive the frequency signal corresponding to the first frequency from the frequency detection circuit, select a second frequency corresponding to the first frequency at which to operate the variable speed fan motor, and transmit control signals to the inverter to supply current to the stator windings at the second frequency.
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Patent Agency Ranking
公开(公告)号：US09559623B2
公开(公告)日：2017-01-31
申请号：US14014710
申请日：2013-08-30
Applicant: Regal Beloit America, Inc.
Inventor： Paul S. Mullin
Abstract: A method of controlling an electrical machine. The electrical machine includes a stator having a core and a plurality of windings, and a rotor disposed adjacent to the stator to interact with the stator. The method includes configuring an amplitude value and frequency values of a three-phase alternating current (AC) voltage startup signal having an amplitude and a frequency, providing the three-phase alternating current (AC) voltage startup signal to the plurality of windings, and altering the frequency of the three-phase AC voltage startup signal according to a preprogrammed frequency ramp function defined by the frequency values. The method further includes discontinuing the three-phase AC voltage startup signal after the frequency ramp function has completed, and switching to a back electromotive force (BEMF) control mode after discontinuing the three-phase AC voltage startup signal.
Abstract translation: 一种控制电机的方法。 电机包括具有芯和多个绕组的定子，以及与定子相邻设置的与定子相互作用的转子。 该方法包括配置具有振幅和频率的三相交流（AC）电压启动信号的振幅值和频率值，向多个绕组提供三相交流（AC）电压启动信号，以及 根据由频率值定义的预编程频率斜坡功能，改变三相交流电压启动信号的频率。 该方法还包括在频率斜坡功能完成之后停止三相交流电压启动信号，并且在停止三相AC电压启动信号之后切换到反电动势（BEMF）控制模式。
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公开(公告)号：US11959679B2
公开(公告)日：2024-04-16
申请号：US17069072
申请日：2020-10-13
Applicant: REGAL BELOIT AMERICA, INC.
Inventor： Paul S. Mullin , Daniel E. Thompson , Ludovic Andre Chretien
CPC classification number: F25B49/022 , F04D27/004 , F25B31/02 , H02P27/06 , F25B2600/111 , F25B2600/112 , F25B2700/151
Abstract: A fan drive circuit for a variable speed fan motor in a cooling system, includes an inverter configured to supply a current signal to stator windings of the variable speed fan motor, a frequency detection circuit coupled to an output stage of an inverter of a compressor motor of the cooling system and configured to detect a first frequency of a compressor current signal at the output stage of a variable speed compressor drive circuit and generate a frequency signal, and a digital signal processor (DSP) coupled to the inverter and the frequency detection circuit. The DSP is configured to receive the frequency signal corresponding to the first frequency from the frequency detection circuit, select a second frequency corresponding to the first frequency at which to operate the variable speed fan motor, and transmit control signals to the inverter to supply current to the stator windings at the second frequency.
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公开(公告)号：US10425029B1
公开(公告)日：2019-09-24
申请号：US15995950
申请日：2018-06-01
Applicant: Regal Beloit America, Inc.
Inventor： Brian L. Beifus , Sanjeev Shirahatti , Paul S. Mullin , Bin Yang
Abstract: A motor controller for an electric motor includes a drive circuit that regulates power supplied to a stator of the electric motor to turn a rotor. The motor controller includes a communication interface that receives coefficients. The motor controller includes a processor coupled to the drive circuit. The processor receives an airflow rate demand, computes a speed, computes a torque set point as a function of at least a sum of first and second terms. The first term is defined as the first coefficient multiplied by the airflow rate demand raised to a power greater than one, and the second term is defined as the second coefficient multiplied by the speed raised to a power greater than one. The processor controls the drive circuit based on the torque set point to supply electrical power to the electric motor.
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公开(公告)号：US20210025631A1
公开(公告)日：2021-01-28
申请号：US17069072
申请日：2020-10-13
Applicant: REGAL BELOIT AMERICA, INC.
Inventor： Paul S. Mullin , Daniel E. Thompson , Ludovic Andre Chretien
Abstract: A fan drive circuit for a variable speed fan motor in a cooling system, includes an inverter configured to supply a current signal to stator windings of the variable speed fan motor, a frequency detection circuit coupled to an output stage of an inverter of a compressor motor of the cooling system and configured to detect a first frequency of a compressor current signal at the output stage of a variable speed compressor drive circuit and generate a frequency signal, and a digital signal processor (DSP) coupled to the inverter and the frequency detection circuit. The DSP is configured to receive the frequency signal corresponding to the first frequency from the frequency detection circuit, select a second frequency corresponding to the first frequency at which to operate the variable speed fan motor, and transmit control signals to the inverter to supply current to the stator windings at the second frequency.
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公开(公告)号：US20150061556A1
公开(公告)日：2015-03-05
申请号：US14014710
申请日：2013-08-30
Applicant: Regal Beloit America, Inc.
Inventor： Paul S. Mullin
IPC: H02P6/20
Abstract: A method of controlling an electrical machine. The electrical machine includes a stator having a core and a plurality of windings, and a rotor disposed adjacent to the stator to interact with the stator. The method includes configuring an amplitude value and frequency values of a three-phase alternating current (AC) voltage startup signal having an amplitude and a frequency, providing the three-phase alternating current (AC) voltage startup signal to the plurality of windings, and altering the frequency of the three-phase AC voltage startup signal according to a preprogrammed frequency ramp function defined by the frequency values. The method further includes discontinuing the three-phase AC voltage startup signal after the frequency ramp function has completed, and switching to a back electromotive force (BEMF) control mode after discontinuing the three-phase AC voltage startup signal.
Abstract translation: 一种控制电机的方法。 电机包括具有芯和多个绕组的定子，以及与定子相邻设置的与定子相互作用的转子。 该方法包括配置具有振幅和频率的三相交流（AC）电压启动信号的振幅值和频率值，向多个绕组提供三相交流（AC）电压启动信号，以及 根据由频率值定义的预编程频率斜坡功能，改变三相交流电压启动信号的频率。 该方法还包括在频率斜坡功能完成之后停止三相交流电压启动信号，并且在停止三相AC电压启动信号之后切换到反电动势（BEMF）控制模式。
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