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    Controller and Method for Transitioning Between Control Angles
    1.
    发明申请
    Controller and Method for Transitioning Between Control Angles 审中-公开

    公开(公告)号：US20170310251A1

    公开(公告)日：2017-10-26

    申请号：US15645983

    申请日：2017-07-10

    Applicant: Emerson Climate Technologies, Inc.

    Inventor： Charles E. GREEN ,  Joseph G. MARCINKIEWICZ

    IPC: H02P6/06 ,  H02P6/20 ,  H02P6/34 ,  H02M3/158 ,  H02M1/42

    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.

    Power Factor Correction Circuit and Method Including Dual Bridge Rectifiers
    2.
    发明申请
    Power Factor Correction Circuit and Method Including Dual Bridge Rectifiers 审中-公开

    公开(公告)号：US20170302160A1

    公开(公告)日：2017-10-19

    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: H02M1/42 ,  H02M1/44 ,  H02M7/06 ,  F25B49/02 ,  H02P27/06 ,  H02M1/08 ,  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.

    Controller And Method For Transitioning Between Control Angles
    3.
    发明申请
    Controller And Method For Transitioning Between Control Angles 审中-公开
    控制器和控制角之间转换的方法

    公开(公告)号：US20160028333A1

    公开(公告)日：2016-01-28

    申请号：US14875676

    申请日：2015-10-05

    Applicant: Emerson Climate Technologies, Inc.

    Inventor： Charles E. GREEN ,  Joseph G. MARCINKIEWICZ

    IPC: H02P6/00

    CPC classification number: H02P6/06 ,  H02M1/4225 ,  H02M3/1584 ,  H02P6/20 ,  H02P6/34 ,  Y02B70/126

    Abstract: A system includes a pulse-width modulation (PWM) module, a subtraction module, an error reducing module, and a summing module. The PWM module controls switching of an inverter that powers a motor. The PWM module controls the switching based on a first angle in a first mode and a second angle in a second mode. The subtraction module determines a difference between the first and second angles. The error reducing module (i) stores the difference when a transition from the first mode to the second mode is commanded and (ii) decreases a magnitude of the stored difference to zero. The summing module calculates a sum of the stored difference and the second angle. The PWM module controls the switching based on the sum in the second mode.

    Abstract translation: 一种系统包括脉宽调制（PWM）模块，减法模块，减误模块和求和模块。 PWM模块控制为电机供电的变频器的开关。 PWM模块基于第一模式中的第一角度和第二模式中的第二角度来控制切换。 减法模块确定第一和第二角度之间的差异。 当从第一模式转换到第二模式时，误差减小模块（i）存储差异，并且（ii）将存储的差值的大小减小到零。 求和模块计算存储的差值和第二角度的和。 PWM模块基于第二模式中的和来控制切换。

    Multi-Phase Converter Control System And Method For Interleaving Multi-Phase Converters
    4.
    发明申请
    Multi-Phase Converter Control System And Method For Interleaving Multi-Phase Converters 有权

    公开(公告)号：US20210028692A1

    公开(公告)日：2021-01-28

    申请号：US16938219

    申请日：2020-07-24

    Applicant: Emerson Climate Technologies, Inc.

    Inventor： Charles E. GREEN ,  Paul RANCURET

    IPC: H02M1/42 ,  H02M1/38

    Abstract: A desired OFF period module is configured to determine a desired OFF period for a plurality of switches of a PFC circuit based on an input voltage and an output voltage. A blanking timer module is configured to output a blanking signal, set the blanking signal to a first state when a countdown timer is greater than zero, and set the blanking signal to a second state when the countdown timer reaches zero. A switching control module is configured to: transition a first switch of the plurality of switches from an ON state to an OFF state in response to (i) a measured current through an inductor of the PFC circuit being greater than a demanded current through the inductor and (ii) the blanking signal being in the second state; and maintain the first switch in the OFF state for the desired OFF period after the transition.

    Filtering Systems And Methods For Voltage Control
    6.
    发明申请
    Filtering Systems And Methods For Voltage Control 审中-公开

    公开(公告)号：US20170302162A1

    公开(公告)日：2017-10-19

    申请号：US15419464

    申请日：2017-01-30

    Applicant: Emerson Climate Technologies, Inc.

    Inventor： Charles E. GREEN

    IPC: H02M1/42 ,  H02M5/42 ,  H02M1/12

    CPC classification number: H02M1/4266 ,  H02M1/08 ,  H02M1/12 ,  H02M1/126 ,  H02M1/15 ,  H02M1/42 ,  H02M1/4225 ,  H02M1/44 ,  H02M5/42 ,  H02M2001/0025 ,  H02M2001/4291 ,  Y02B70/126

    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.

    Temperature Sensing Circuit For Transmitting Data Across Isolation Barrier
    8.
    发明申请
    Temperature Sensing Circuit For Transmitting Data Across Isolation Barrier 审中-公开

    公开(公告)号：US20170299444A1

    公开(公告)日：2017-10-19

    申请号：US15419349

    申请日：2017-01-30

    Applicant: Emerson Climate Technologies, Inc.

    Inventor： Charles E. GREEN

    IPC: G01K7/24 ,  G01K1/02

    CPC classification number: G01K7/24 ,  G01K2201/00

    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.

    System And Method for Permanent Magnet Motor Control
    9.
    发明申请
    System And Method for Permanent Magnet Motor Control 有权
    永磁电机控制系统与方法

    公开(公告)号：US20130342142A1

    公开(公告)日：2013-12-26

    申请号：US13871598

    申请日：2013-04-26

    Applicant: EMERSON CLIMATE TECHNOLOGIES, INC.

    Inventor： Joseph G. MARCINKIEWICZ ,  Charles E. GREEN ,  Michael I. HENDERSON

    IPC: H02P6/20

    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: starting the electric motor in an open loop control mode; operating an estimator that estimates operating conditions of the electric motor; and, while the electric motor is in the open loop control mode, evaluating a first parameter of the estimator. The method further includes: in response to the evaluation of the first parameter, determining whether the estimator has converged; and in response to a determination that the estimator has not converged within a predetermined period of time after starting the electric motor, signaling a first fault condition.

    Abstract translation: 公开了一种操作电动机的方法。 该方法包括：以开环控制模式启动电动机; 操作估计电动机运行状况的估计器; 并且当电动机处于开环控制模式时，评估估计器的第一参数。 该方法还包括：响应于对第一参数的评估，确定估计器是否收敛; 并且响应于估计器在启动电动机之后的预定时间段内没有收敛的确定，发信号通知第一故障状况。

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