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公开(公告)号：US09048767B2
公开(公告)日：2015-06-02
申请号：US13356348
申请日：2012-01-23
摘要： A pulse-width modulation (PWM) inverter controller compensates for harmonics in the output current provided by a PWM inverter to permanent magnet (PM) motor. The PWM inverter controller includes a field-oriented controller (FOC) that monitors output currents provided by the PWM inverter to the PM motor and employs the monitored output currents in a current loop feedback that generates control signals. A harmonic compensator transforms monitored phase currents into rectangular waveforms having magnitudes modified based on detected harmonics within the monitored phase currents to generate compensation signals. The compensation signals generated by the harmonic compensator are summed with the control signals generated by the FOC to generate compensated control signals. A PWM signal generator generates PWM signals for controlling the PWM inverter based on the compensated control signals.
摘要翻译： 脉冲宽度调制（PWM）逆变器控制器补偿由PWM逆变器提供给永磁（PM）电机的输出电流的谐波。 PWM逆变器控制器包括一个磁场定向控制器（FOC），该控制器监视由PWM逆变器提供给PM电机的输出电流，并在产生控制信号的电流环路反馈中采用监视的输出电流。 谐波补偿器将监视的相电流转换成具有基于检测到的相电流内检测到的谐波修改的幅度的矩形波形，以产生补偿信号。 由谐波补偿器产生的补偿信号与由FOC产生的控制信号相加以产生补偿控制信号。 PWM信号发生器基于经补偿的控制信号产生用于控制PWM逆变器的PWM信号。
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公开(公告)号：US20130039105A1
公开(公告)日：2013-02-14
申请号：US13206267
申请日：2011-08-09
摘要： A filter circuit is employed to filter undesirable harmonics in a multi-phase AC input and provide damping for oscillations associated with the filter circuit. The filter circuit includes a damping circuit connected between phases of the multi-phase AC input. The damping circuit including a rectifier for rectifying harmonics in the multi-phase AC input and a single damping resistor connected across the rectifier.
摘要翻译： 滤波器电路用于滤波多相AC输入中的不期望的谐波，并为与滤波器电路相关的振荡提供阻尼。 滤波电路包括在多相交流输入的相位之间连接的阻尼电路。 该阻尼电路包括用于整流多相AC输入中的谐波的整流器和连接在整流器两端的单个阻尼电阻器。
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公开(公告)号：US20130187579A1
公开(公告)日：2013-07-25
申请号：US13356348
申请日：2012-01-23
摘要： A pulse-width modulation (PWM) inverter controller compensates for harmonics in the output current provided by a PWM inverter to permanent magnet (PM) motor. The PWM inverter controller includes a field-oriented controller (FOC) that monitors output currents provided by the PWM inverter to the PM motor and employs the monitored output currents in a current loop feedback that generates control signals. A harmonic compensator transforms monitored phase currents into rectangular waveforms having magnitudes modified based on detected harmonics within the monitored phase currents to generate compensation signals. The compensation signals generated by the harmonic compensator are summed with the control signals generated by the FOC to generate compensated control signals. A PWM signal generator generates PWM signals for controlling the PWM inverter based on the compensated control signals.
摘要翻译： 脉冲宽度调制（PWM）逆变器控制器补偿由PWM逆变器提供给永磁（PM）电机的输出电流的谐波。 PWM逆变器控制器包括一个磁场定向控制器（FOC），该控制器监视由PWM逆变器提供给PM电机的输出电流，并在产生控制信号的电流环路反馈中采用监视的输出电流。 谐波补偿器将监视的相电流转换成具有基于检测到的相电流内检测到的谐波修改的幅度的矩形波形，以产生补偿信号。 由谐波补偿器产生的补偿信号与由FOC产生的控制信号相加以产生补偿控制信号。 PWM信号发生器基于经补偿的控制信号产生用于控制PWM逆变器的PWM信号。
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公开(公告)号：US20130181654A1
公开(公告)日：2013-07-18
申请号：US13352793
申请日：2012-01-18
IPC分类号： H02P27/00
CPC分类号： H02M5/4585 , H02M1/12 , H02P27/085 , H02P2201/03 , H02P2201/15
摘要： An active rectifier controller controls operation of an active rectifier employed in a power conversion system that supplies a direct current (DC) output to an inverter that converts the DC output to an AC output supplied to an AC motor. The active rectifier controller includes a field-oriented control (FOC) controller that monitors an alternating current (AC) input currents provided to the active rectifier, the DC output provided to the inverter, and speed of the AC motor. The FOC controller selects a reference DC output value based on the speed of the AC motor and compares the monitored DC output to the reference DC output as part of the FOC control algorithm used to generate control signals. A PWM signal generator generates PWM signals for controlling the active rectifier based on the control signals.
摘要翻译： 有源整流器控制器控制在将直流输出转换为提供给交流电动机的交流输出的逆变器提供直流（DC）输出的电力转换系统中使用的有源整流器的操作。 有源整流器控制器包括一个磁场定向控制（FOC）控制器，用于监控提供给有源整流器的交流（AC）输入电流，提供给逆变器的直流输出以及交流电动机的速度。 FOC控制器基于交流电机的速度选择参考直流输出值，并将监控的直流输出与参考直流输出进行比较，作为用于产生控制信号的FOC控制算法的一部分。 PWM信号发生器根据控制信号生成用于控制有源整流器的PWM信号。
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