Power factor correction with variable bus voltage
    1.
    发明授权
    Power factor correction with variable bus voltage 有权
    具有可变总线电压的功率因数校正

    公开(公告)号:US08508166B2

    公开(公告)日:2013-08-13

    申请号:US12852557

    申请日:2010-08-09

    IPC分类号: G05F1/70

    摘要: 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 compressor motor. The voltage determination module determines the desired DC bus voltage based on at least one of torque of the compressor motor, speed of the compressor motor, output power of the inverter power module, and drive input power. 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.

    摘要翻译: 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压缩机马达的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。 电压确定模块基于压缩机电动机的转矩,压缩机电动机的速度,逆变器功率模块的输出功率和驱动输入功率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。

    POWER FACTOR CORRECTION WITH VARIABLE BUS VOLTAGE
    2.
    发明申请
    POWER FACTOR CORRECTION WITH VARIABLE BUS VOLTAGE 有权
    功率因数校正与可变总线电压

    公开(公告)号:US20110031911A1

    公开(公告)日:2011-02-10

    申请号:US12852557

    申请日:2010-08-09

    IPC分类号: H02P27/00

    摘要: 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 compressor motor. The voltage determination module determines the desired DC bus voltage based on at least one of torque of the compressor motor, speed of the compressor motor, output power of the inverter power module, and drive input power. 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.

    摘要翻译: 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压缩机马达的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。 电压确定模块基于压缩机电动机的转矩,压缩机电动机的速度,逆变器功率模块的输出功率和驱动输入功率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。

    Sensorless commutation controller for a poly-phase dynamoelectric machine
    3.
    发明授权
    Sensorless commutation controller for a poly-phase dynamoelectric machine 失效
    用于多相电动机的无传感器换向控制器

    公开(公告)号:US5457375A

    公开(公告)日:1995-10-10

    申请号:US250017

    申请日:1994-05-27

    CPC分类号: H02P6/085 H02P25/089 H02P6/18

    摘要: A BPM or SRM electric motor (M) is supplied bus current. A PWM inverter (I) uses bus current to commutate the motor by Systematically energizing and de-energizing the motor's windings (W) with the current. The resultant bus current waveshape has characteristics that are a function of a commutation angle between a rotor (T) of the machine and its windings. The waveshape includes the effects of bus ripple or transients. A commutation controller (10) samples the waveshape during each commutation interval to obtain commutation angle information. The controller provides control inputs to an inverter (I) to control commutation angle in response to the sample information. Commutation angle control includes calculating a control variable (I.sub.curve) which is a function of commutation angle. This variable is comprised of sampled data values which are additively combined according to a prescribed formula and which provide a high degree of linearity over a wide range of commutation angles. The controller is further responsive to the motor's impulse response (H.sub.motor (t)) to reject bus ripple effects on the waveshape samples. By employing the control variable and impulse response, the controller provides appropriate frequency (f.sub.out) and voltage (V.sub. out corrected) inputs to the inverter to achieve an optimum commutation angle relationship between the rotor and windings.

    摘要翻译: BPM或SRM电机(M)提供总线电流。 PWM逆变器(I)使用总线电流来对电动机进行换向,用电流系统地给电动机的绕组(W)供电和断电。 所得到的总线电流波形具有作为机器的转子(T)与其绕组之间的换向角的函数的特性。 波形包括总线纹波或瞬变的影响。 换向控制器(10)在每个换向间隔期间采样波形以获得换向角度信息。 控制器向逆变器(I)提供控制输入,以响应样品信息控制换向角。 换向角控制包括计算作为换向角函数的控制变量(Icurve)。 该变量包括根据规定的公式加法组合并且在宽范围的换向角度下提供高度线性度的采样数据值。 控制器进一步响应电机的脉冲响应(Hmotor(t)),以消除波形样本的总线纹波效应。 通过采用控制变量和脉冲响应,控制器向变频器提供适当的频率(fout)和电压(V校正)输入,以实现转子和绕组之间的最佳换向角关系。

    Controller and method for transitioning between control angles
    4.
    发明授权
    Controller and method for transitioning between control angles 有权
    用于在控制角度之间转换的控制器和方法

    公开(公告)号:US08264192B2

    公开(公告)日:2012-09-11

    申请号:US12852625

    申请日:2010-08-09

    IPC分类号: H02P6/08 H02P27/08

    摘要: 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.

    摘要翻译: 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。

    CONTROLLER AND METHOD FOR TRANSITIONING BETWEEN CONTROL ANGLES
    5.
    发明申请
    CONTROLLER AND METHOD FOR TRANSITIONING BETWEEN CONTROL ANGLES 有权
    用于过渡控制角的控制器和方法

    公开(公告)号:US20110031914A1

    公开(公告)日:2011-02-10

    申请号:US12852625

    申请日:2010-08-09

    IPC分类号: H02P6/20

    摘要: 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.

    摘要翻译: 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。

    CONTROLLER AND METHOD FOR ESTIMATING, MANAGING, AND DIAGNOSING MOTOR PARAMETERS
    6.
    发明申请
    CONTROLLER AND METHOD FOR ESTIMATING, MANAGING, AND DIAGNOSING MOTOR PARAMETERS 有权
    用于估计,管理和诊断电机参数的控制器和方法

    公开(公告)号:US20110031920A1

    公开(公告)日:2011-02-10

    申请号:US12852961

    申请日:2010-08-09

    IPC分类号: H02P7/29

    摘要: A motor control system includes a control module, a switching module, and a filtering module. The control module determines output voltages for operating a motor based on a torque demand. The switching module generates switching signals for an inverter that drives the motor. The switching module generates the switching signals based on the output voltages. The switching module generates an out-of-volts (OOV) signal according to a comparison based on the output voltages, a maximum duty cycle, and a voltage of a direct current (DC) bus that provides power to the inverter. The filtering module generates an OOV amount by filtering the OOV signal. The control module selectively limits the torque demand based on the OOV amount.

    摘要翻译: 电机控制系统包括控制模块,开关模块和过滤模块。 控制模块基于转矩需求确定用于操作电动机的输出电压。 开关模块为驱动电机的变频器产生开关信号。 开关模块根据输出电压产生开关信号。 开关模块根据输出电压,最大占空比和向逆变器供电的直流(DC)总线的电压进行比较,产生失伏(OOV)信号。 滤波模块通过对OOV信号进行滤波生成OOV量。 控制模块基于OOV量有选择地限制扭矩需求。

    Controller and method for estimating, managing, and diagnosing motor parameters
    7.
    发明授权
    Controller and method for estimating, managing, and diagnosing motor parameters 有权
    用于估计,管理和诊断电机参数的控制器和方法

    公开(公告)号:US08493014B2

    公开(公告)日:2013-07-23

    申请号:US12852961

    申请日:2010-08-09

    IPC分类号: H02P7/00

    摘要: A motor control system includes a control module, a switching module, and a filtering module. The control module determines output voltages for operating a motor based on a torque demand. The switching module generates switching signals for an inverter that drives the motor. The switching module generates the switching signals based on the output voltages. The switching module generates an out-of-volts (OOV) signal according to a comparison based on the output voltages, a maximum duty cycle, and a voltage of a direct current (DC) bus that provides power to the inverter. The filtering module generates an OOV amount by filtering the OOV signal. The control module selectively limits the torque demand based on the OOV amount.

    摘要翻译: 电机控制系统包括控制模块,开关模块和过滤模块。 控制模块基于转矩需求确定用于操作电动机的输出电压。 开关模块为驱动电机的变频器产生开关信号。 开关模块根据输出电压产生开关信号。 开关模块根据输出电压,最大占空比和向逆变器供电的直流(DC)总线的电压进行比较,产生失伏(OOV)信号。 滤波模块通过对OOV信号进行滤波生成OOV量。 控制模块基于OOV量有选择地限制扭矩需求。

    CONTROLLER AND METHOD FOR TRANSITIONING BETWEEN CONTROL ANGLES
    8.
    发明申请
    CONTROLLER AND METHOD FOR TRANSITIONING BETWEEN CONTROL ANGLES 有权
    用于过渡控制角的控制器和方法

    公开(公告)号:US20120306414A1

    公开(公告)日:2012-12-06

    申请号:US13585961

    申请日:2012-08-15

    IPC分类号: H02P6/18

    摘要: A system includes a control module that controls a motor based on a first rotor angle and an angle determination module that generates the first rotor angle. An estimator module determines an estimated rotor angle of the motor. A transition module generates a transition signal in response to convergence of the estimator module. The angle determination module initially generates the first rotor angle based on an open loop angle. In response to the transition signal, the angle determination module switches to generating the first rotor angle based on the estimated rotor angle and an offset value. The offset value is based on a difference between the estimated rotor angle and the open loop angle at the time when the transition signal is generated.

    摘要翻译: 一种系统包括:控制模块,其基于第一转子角度控制电动机;以及角度确定模块,其产生第一转子角度。 估计器模块确定电机的估计转子角度。 转换模块响应于估计器模块的收敛而产生转换信号。 角度确定模块基于开环角度最初产生第一转子角度。 响应于转换信号,角度确定模块基于估计的转子角度和偏移值切换到产生第一转子角度。 偏移值基于在产生转换信号时的估计转子角度与开环角度之间的差异。

    Controller and method for transitioning between control angles
    9.
    发明授权
    Controller and method for transitioning between control angles 有权
    用于在控制角度之间转换的控制器和方法

    公开(公告)号:US08547051B2

    公开(公告)日:2013-10-01

    申请号:US13585961

    申请日:2012-08-15

    IPC分类号: H02P27/00 H02M1/42

    摘要: A system includes a control module that controls a motor based on a first rotor angle and an angle determination module that generates the first rotor angle. An estimator module determines an estimated rotor angle of the motor. A transition module generates a transition signal in response to convergence of the estimator module. The angle determination module initially generates the first rotor angle based on an open loop angle. In response to the transition signal, the angle determination module switches to generating the first rotor angle based on the estimated rotor angle and an offset value. The offset value is based on a difference between the estimated rotor angle and the open loop angle at the time when the transition signal is generated.

    摘要翻译: 一种系统包括:控制模块,其基于第一转子角度控制电动机;以及角度确定模块,其产生第一转子角度。 估计器模块确定电机的估计转子角度。 转换模块响应于估计器模块的收敛而产生转换信号。 角度确定模块最初基于开环角度产生第一转子角度。 响应于转换信号,角度确定模块基于估计的转子角度和偏移值切换到产生第一转子角度。 偏移值基于在产生转换信号时的估计转子角度与开环角度之间的差异。