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公开(公告)号：US11131491B1
公开(公告)日：2021-09-28
申请号：US16987574
申请日：2020-08-07
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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公开(公告)号：US10928884B2
公开(公告)日：2021-02-23
申请号：US16595277
申请日：2019-10-07
Applicant: Emerson Climate Technologies, Inc.
Inventor： Charles E. Green , Joseph G. Marcinkiewicz
IPC: G06F1/3287 , H02M1/42 , H02P29/02 , G06F8/61 , G06F13/42 , G06F13/40 , H02P23/26 , G06F8/654 , H02M1/32 , G06F9/22 , G06F12/02 , G05B19/042 , H02M1/36 , H02M1/00
Abstract: A control system for driving a motor of a compressor includes a microcontroller and a programmable logic device. The microcontroller is configured to generate a reference current value for a power factor correction (PFC) converter. The programmable logic device is configured to receive control messages from the microcontroller and, in response to data in a first control message, set a value into a timing register. The programmable logic device is configured to reverse a state of a power switch of the PFC converter between an on state and an off state in response to receiving a comparison signal indicating that a measured current in the PFC converter crossed the reference current value. The programmable logic device is configured to, subsequent to reversing the state of the power switch, wait for a period of time determined by the timing register and reverse the state of the power switch.
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公开(公告)号：US10656026B2
公开(公告)日：2020-05-19
申请号：US15419349
申请日：2017-01-30
Applicant: Emerson Climate Technologies, Inc.
Inventor： Charles E. Green
IPC: G01K7/24
Abstract: An isolated temperature sensing system includes a thermistor that measures a temperature of a compressor system. An isolation circuit charges a capacitor, sets an output signal to a first state during charging of the capacitor, discharges the capacitor to the thermistor, and sets the output signal to a second state during discharging of the capacitor to the thermistor. The first state is different than the second state. A control module receives the output signal via an isolation barrier and determines the temperature of the compressor system based on a ratio of: (i) a first period that the output signal is in the first state to (ii) a second period that the output signal is in the second state.
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公开(公告)号：US10277115B2
公开(公告)日：2019-04-30
申请号：US15419464
申请日：2017-01-30
Applicant: Emerson Climate Technologies, Inc.
Inventor： Charles E. Green
Abstract: A power factor correction (PFC) system includes an error control module that determines a first current demand based on a difference between a desired direct current (DC) voltage and a measured DC voltage. A filter module applies a filter to the first current demand to produce a second current demand. A weighting module (i) based on the difference, determines first and second weighting values for the first and second current demands, respectively, (ii) determines a third current demand based on the first current demand and the first weighting value, and (iii) determines a fourth current demand based on the second current demand and the second weighting value. A current demand module determines a final current demand based on the third current demand and fourth current demand. A current control module controls switching of a switch of a PFC device based on the final current demand.
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公开(公告)号：US09810218B2
公开(公告)日：2017-11-07
申请号：US14286132
申请日：2014-05-23
Applicant: Emerson Climate Technologies, Inc.
Inventor： Daniel L. McSweeney , Charles E. Green , Stephen M. Seibel
CPC classification number: F04C28/28 , F04B35/04 , F04B39/06 , F04C18/0215 , F04C29/04 , F04C29/045 , F04C2240/81 , F04C2270/195 , F04C2270/701 , F25B49/022 , F25B2600/021
Abstract: A system includes a compressor having a shell housing a compression mechanism driven by an electric motor in an on state and not driven by the electric motor in an off state. The system also includes a variable frequency drive that drives the electric motor in the on state by varying a frequency of a voltage delivered to the electric motor and that supplies electric current to a stator of the electric motor in the off state to heat the compressor.
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Patent Agency Ranking
公开(公告)号：US20150365034A1
公开(公告)日：2015-12-17
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
IPC: H02P23/00
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：US20140152209A1
公开(公告)日：2014-06-05
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
IPC: H02P6/08
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：US10437317B2
公开(公告)日：2019-10-08
申请号：US15943660
申请日：2018-04-02
Applicant: Emerson Climate Technologies, Inc.
Inventor： Charles E. Green , Joseph G. Marcinkiewicz
IPC: G06F8/61 , G06F9/22 , H02M1/00 , H02M1/32 , H02M1/36 , H02M1/42 , G06F12/02 , G06F13/40 , G06F13/42 , G06F8/654 , H02P23/26 , H02P29/02 , G06F1/3287 , G05B19/042
Abstract: A circuit for driving a motor of a compressor includes a microcontroller that generates a reference current value for a power factor correction (PFC) converter. A programmable logic device (PLD) receives control messages from the microcontroller. The PLD sets a value in an off-time register based on a control message from the microcontroller. The PLD controls a power switch of the PFC converter to turn off in response to receiving a comparison signal indicating that a measured current in the PFC converter exceeds the reference current value. Subsequent to controlling the power switch to turn off, the PLD waits for a period of time determined by the off-time register before controlling the power switch to turn on.
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公开(公告)号：US10312798B2
公开(公告)日：2019-06-04
申请号：US15487151
申请日：2017-04-13
Applicant: Emerson Climate Technologies, Inc.
Inventor： Charles E. Green , Joseph G. Marcinkiewicz , Kraig Bockhorst
IPC: H02M1/42 , H02M1/08 , H02M1/14 , H02M1/32 , H02M1/44 , H02M7/06 , F25B49/02 , H02P27/06 , H02M5/458 , H02P5/74 , H02M1/00 , H02M7/5387
Abstract: A PFC circuit is provided. A bridge rectification circuit receives an AC voltage and generates a rectified AC voltage. A power converter converts the rectified AC voltage to a first DC voltage, where the power converter includes a switch and supplies the first DC voltage to a DC bus to power a compressor. A current sensor detects an amount of current. A control module, while operating in a correction mode: based on the rectified AC voltage, a phase angle of the rectified AC voltage, a second DC voltage of the DC bus, or the detected amount of current, control operation of the switch to transition between operating in a high activity mode and an inactive or low activity mode; transition the switch between open and closed states while in the high and low activity modes; and maintain the power converter in an OFF state while in the inactive mode.
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公开(公告)号：US09853588B2
公开(公告)日：2017-12-26
申请号：US14997900
申请日：2016-01-18
Applicant: Emerson Climate Technologies, Inc.
Inventor： Charles E. Green , Joseph G. Marcinkiewicz
IPC: H02P1/30 , H02P1/52 , H02P3/00 , H02P7/06 , H02P27/08 , H02P27/04 , H02P23/26 , H02P23/30 , H02P23/14
CPC classification number: H02P27/08 , H02P23/14 , H02P23/26 , H02P23/30 , H02P27/04 , H02P27/085 , H02P2201/15 , H02P2205/05 , H02P2205/07
Abstract: A control circuit for a motor of a compressor includes an inverter control module configured to control power switching devices of an inverter to generate output voltages from a DC power supply. The output voltages are applied to windings of the motor. A current control module is configured to generate voltage signals based on a torque demand. The inverter control module controls the power switching devices according to the voltage signals. A selector is configured to output one of an open loop torque value and a closed loop torque value as the torque demand. An open loop torque module is configured to generate the open loop torque value. The open loop torque module is configured to apply an upper limit to the open loop torque value. The upper limit is based on a voltage of the DC power supply.
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