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公开(公告)号：US10770966B2
公开(公告)日：2020-09-08
申请号：US15487175
申请日：2017-04-13
Applicant: Emerson Climate Technologies, Inc.
Inventor： Joseph G. Marcinkiewicz , Kraig Bockhorst , Charles E. Green
IPC: H02P27/00 , H02M7/48 , H02M1/42 , H02M1/08 , H02M1/14 , H02M1/32 , H02M1/44 , H02M7/06 , F25B49/02 , H02P27/06 , H02M5/458 , H02P5/74 , H02M7/5387 , H02M1/00
Abstract: A PFC circuit is provided. A first bridge rectifier receives an AC voltage. A power converter includes a switch and receives an output of the first bridge rectifier, converts the output to a first DC voltage, and supplies the first DC voltage to a DC bus to power a compressor. A second bridge rectifier receives the AC voltage and bypasses at least one of the first bridge rectifier, a choke and a diode of the PFC circuit to provide a rectified AC voltage out of the second bridge rectifier to the DC bus to power the compressor. A control module controls operation of a driver to transition the switch between open and closed states to adjust a second DC voltage on the DC bus, where the second DC voltage, depending on the AC and second DC voltages, is based on the first DC voltage or the rectified AC voltage.
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公开(公告)号：US10763740B2
公开(公告)日：2020-09-01
申请号：US15419423
申请日：2017-01-30
Applicant: Emerson Climate Technologies, Inc.
Inventor： Charles E. Green
Abstract: A power factor correction (PFC) system includes a desired OFF period module that determines a desired OFF period for a switch of a PFC circuit based on an input voltage to the PFC circuit and an output voltage of the PFC circuit. A switching control module transitions the switch from an ON state to an OFF state when a measured current through an inductor of the PFC circuit is greater than a demanded current through the inductor and maintains the switch in the OFF state for the desired OFF period after the transition from the ON state to the OFF state.
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公开(公告)号：US09933842B2
公开(公告)日：2018-04-03
申请号：US15487426
申请日：2017-04-13
Applicant: Emerson Climate Technologies, Inc.
Inventor： Charles E. Green , Joseph G. Marcinkiewicz
CPC classification number: G06F1/3287 , G06F8/61 , G06F8/654 , G06F9/223 , G06F12/0246 , G06F13/4022 , G06F13/4282 , G06F2212/7201 , H02M1/32 , H02M1/36 , H02M1/42 , H02M1/4225 , H02M2001/0012 , H02M2001/327 , H02M2001/4291 , H02P29/02
Abstract: A circuit for driving a motor of a compressor includes a microcontroller, which includes an op-amp, a comparator, a first serial interface, and a first dedicated pin. The op-amp amplifies a value indicating current in a power factor correction converter, which includes a power switch. The comparator asserts a comparison signal in response to the amplified value exceeding a reference value. The comparison signal is output on the first dedicated pin. A programmable logic device (PLD) includes a second serial interface in communication with the first serial interface and a second dedicated pin. The comparison signal is received on the second dedicated pin and the PLD receives control messages from the microcontroller via the second serial interface. The PLD sets a value in an off-time register based on a control message from the microcontroller. The PLD controls the power switch according to the comparison signal and the off-time register.
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公开(公告)号：US09912263B2
公开(公告)日：2018-03-06
申请号：US15645983
申请日：2017-07-10
Applicant: Emerson Climate Technologies, Inc.
Inventor： Charles E. Green , Joseph G. Marcinkiewicz
CPC classification number: H02P6/06 , H02M1/4225 , H02M3/1584 , H02P6/20 , H02P6/34 , Y02B70/126
Abstract: A control system for a refrigeration system motor includes an angle determination module that generates an output rotor angle indicating a desired angle of a rotor of the motor. A control module controls the motor based on the output rotor angle. An estimator module determines an estimated rotor angle. A transition module generates a transition signal in response to convergence of the estimator module. Upon startup, the angle determination module generates the output rotor angle based on a first rotor angle. Upon generation of the transition signal, the angle determination module generates the output rotor angle based on the first rotor angle and the estimated rotor angle. After generation of the transition signal, the angle determination module reduces a contribution of the first rotor angle to the output rotor angle over time until the output rotor angle is based on the estimated rotor angle independent of the first rotor angle.
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公开(公告)号：US09705433B2
公开(公告)日：2017-07-11
申请号：US14875676
申请日：2015-10-05
Applicant: Emerson Climate Technologies, Inc.
Inventor： Charles E. Green , Joseph G. Marcinkiewicz
CPC classification number: H02P6/06 , H02M1/4225 , H02M3/1584 , H02P6/20 , H02P6/34 , Y02B70/126
Abstract: A control system for a motor in a refrigeration system includes an angle determination module configured to generate an output rotor angle indicative of a desired angle of a rotor of the motor. The control system controls current supplied to the motor based on the output rotor angle. The control system determines an estimated rotor angle of the motor. The angle determination module, upon startup of the motor, generates the output rotor angle based on a first rotor angle. Upon generation of a transition signal, the angle determination module generates the output rotor angle based on both the first rotor angle and the estimated rotor angle. Subsequent to generation of the transition signal, the angle determination module reduces a contribution of the first rotor angle to the output rotor angle over time until the output rotor angle is based on the estimated rotor angle independent of the first rotor angle.
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Patent Agency Ranking
公开(公告)号：US09088232B2
公开(公告)日：2015-07-21
申请号：US13964595
申请日：2013-08-12
Applicant: Emerson Climate Technologies, Inc.
Inventor： Joseph G. Marcinkiewicz , James L. Skinner , Charles E. Green , John P. Powers
CPC classification number: H02P23/26 , H02M1/4225 , H02M2001/008 , H02P6/08 , Y02B70/126
Abstract: A controller includes a voltage determination module, a bus voltage command module, and a power factor correction (PFC) control module. The voltage determination module determines a desired direct current (DC) bus voltage for a DC bus electrically connected between a PFC module and an inverter power module that drives a motor. The voltage determination module determines the desired DC bus voltage based on at least one of torque of the motor and speed of the motor. The bus voltage command module determines a commanded bus voltage based on the desired DC bus voltage. The PFC control module controls the PFC module to create a voltage on the DC bus that is based on the commanded bus voltage.
Abstract translation: 控制器包括电压确定模块，总线电压指令模块和功率因数校正（PFC）控制模块。 电压确定模块确定用于驱动电动机的PFC模块和逆变器功率模块之间电连接的DC总线的期望的直流（DC）母线电压。 电压确定模块基于电动机的转矩和电动机的速度中的至少一个来确定期望的直流母线电压。 总线电压指令模块根据期望的直流母线电压来确定指令的母线电压。 PFC控制模块控制PFC模块，根据指令的总线电压在DC总线上创建一个电压。
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公开(公告)号：US09991834B2
公开(公告)日：2018-06-05
申请号：US15494591
申请日：2017-04-24
Applicant: Emerson Climate Technologies, Inc.
Inventor： Joseph G. Marcinkiewicz , Charles E. Green , Michael I. Henderson
CPC classification number: H02P21/22 , B60H1/00428 , F25B49/025 , F25B2500/26 , F25B2600/021 , F25B2700/171 , H02P6/12 , H02P6/21 , H02P21/141 , H02P21/18 , H02P29/0241 , Y02T10/88
Abstract: A method of operating an electric motor is disclosed. The method includes: determining a d-axis resistance of an electric motor and a Q-axis resistance of the electric motor as a function of a bulk current; determining a d-axis inductance of the electric motor and a Q-axis inductance of the electric motor as a function of the bulk current; generating an estimated flux of the electric motor based on the d-axis resistance of the electric motor, the Q-axis resistance of the electric motor, the d-axis inductance of the electric motor, and the Q-axis inductance of the electric motor; generating an estimated angle of the electric motor based on the estimated flux of the electric motor; and, based on the estimated angle of the electric motor, controlling switching of an inverter that powers the electric motor.
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公开(公告)号：US09564846B2
公开(公告)日：2017-02-07
申请号：US14804040
申请日：2015-07-20
Applicant: Emerson Climate Technologies, Inc.
Inventor： Joseph G. Marcinkiewicz , James L. Skinner , Charles E. Green , John P. Powers
CPC classification number: H02P23/26 , H02M1/4225 , H02M2001/008 , H02P6/08 , Y02B70/126
Abstract: A controller includes a voltage determination module, a bus voltage command module, and a power factor correction (PFC) control module. The voltage determination module determines a desired direct current (DC) bus voltage for a DC bus electrically connected between a PFC module and an inverter power module that drives a motor. The voltage determination module determines the desired DC bus voltage based on at least one of torque of the motor and speed of the motor. The bus voltage command module determines a commanded bus voltage based on the desired DC bus voltage. The PFC control module controls the PFC module to create a voltage on the DC bus that is based on the commanded bus voltage.
Abstract translation: 控制器包括电压确定模块，总线电压指令模块和功率因数校正（PFC）控制模块。 电压确定模块确定用于驱动电动机的PFC模块和逆变器功率模块之间电连接的DC总线的期望的直流（DC）母线电压。 电压确定模块基于电动机的转矩和电动机的速度中的至少一个来确定期望的直流母线电压。 总线电压指令模块根据期望的直流母线电压来确定指令的母线电压。 PFC控制模块控制PFC模块，根据指令的总线电压在DC总线上创建一个电压。
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公开(公告)号：US09240749B2
公开(公告)日：2016-01-19
申请号：US13963317
申请日：2013-08-09
Applicant: Emerson Climate Technologies, Inc.
Inventor： Charles E. Green , Joseph G. Marcinkiewicz
CPC classification number: H02P27/08 , H02P23/14 , H02P23/26 , H02P23/30 , H02P27/04 , H02P27/085 , H02P2201/15 , H02P2205/05 , H02P2205/07
Abstract: A control system for a motor includes a pulse-width modulation module, a pulse skip determination module, and a duty cycle adjustment module. The pulse-width modulation module generates three duty cycle values based on three voltage requests, respectively. A plurality of solid-state switches control three phases of the motor in response to the three duty cycle values, respectively. The pulse skip determination module generates a pulse skip signal. The duty cycle adjustment module selectively prevents the plurality of solid-state switches from switching during intervals specified by the pulse skip signal.
Abstract translation: 电动机的控制系统包括脉冲宽度调制模块，脉冲跳跃确定模块和占空比调节模块。 脉冲宽度调制模块分别基于三个电压请求产生三个占空比值。 多个固态开关分别响应于三个占空比值控制电动机的三相。 脉冲跳过确定模块产生脉冲跳越信号。 占空比调整模块选择性地防止多个固态开关在由脉冲跳跃信号指定的间隔期间切换。
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公开(公告)号：US11585581B2
公开(公告)日：2023-02-21
申请号：US17398396
申请日：2021-08-10
Applicant: Emerson Climate Technologies, Inc.
Inventor： Kashmira Patel , Charles E. Green , John F. Broker
Abstract: A system for controlling a capacity of a compressor includes a motor of the compressor including a main winding connected at a connection point to an auxiliary winding and a drive configured to control a speed of the motor. The system includes a first switch configured to selectively connect the main winding to either a first line voltage or a first output of the drive, a second switch configured to selectively connect the connection point to either a second line voltage or a second output of the drive, and a third switch configured to selectively connect the auxiliary winding to either a capacitor or a third output of the drive. The system includes a solenoid valve configured to selectively either operate in a first capacity or a second capacity. The system includes a control module configured to control the drive, the first switch, the second switch, and the third switch.
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