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公开(公告)号：US20110255198A1
公开(公告)日：2011-10-20
申请号：US13173413
申请日：2011-06-30
IPC分类号： H02H9/02
CPC分类号： H02H3/353
摘要： A motor drive ground fault detection device operates by computing the total RMS voltage of all the phases, and comparing the total RMS voltage to a threshold to determine if a ground fault has occurred.
摘要翻译： 电动机驱动器接地故障检测装置通过计算所有相的总RMS电压并将总RMS电压与阈值进行比较来确定接地故障是否发生。
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公开(公告)号：US08305723B2
公开(公告)日：2012-11-06
申请号：US13173413
申请日：2011-06-30
IPC分类号： H02H3/00
CPC分类号： H02H3/353
摘要： A motor drive ground fault detection device operates by computing the total RMS voltage of all the phases, and comparing the total RMS voltage to a threshold to determine if a ground fault has occurred.
摘要翻译： 电动机驱动器接地故障检测装置通过计算所有相的总RMS电压并将总RMS电压与阈值进行比较来确定接地故障是否发生。
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公开(公告)号：US20100091419A1
公开(公告)日：2010-04-15
申请号：US12251499
申请日：2008-10-15
IPC分类号： H02H3/00
CPC分类号： H02H3/353
摘要： A motor drive ground fault detection device operates by computing the total RMS voltage of all the phases, and comparing the total RMS voltage to a threshold to determine if a ground fault has occurred.
摘要翻译： 电动机驱动器接地故障检测装置通过计算所有相的总RMS电压并将总RMS电压与阈值进行比较来确定接地故障是否发生。
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公开(公告)号：US5867023A
公开(公告)日：1999-02-02
申请号：US794376
申请日：1997-02-04
CPC分类号： G01B7/30
摘要： A converter circuit for converting an alternating signal representing continuous rotary position into a further signal representing discrete rotary position samples the polarity of an envelope of the alternating signal and develops a state change in the further signal when the envelope changes polarity.
摘要翻译： A转换器电路，用于将表示连续旋转位置的交替信号转换为表示离散旋转位置的另一信号，对交变信号的包络线的极性进行采样，并且当包络线改变极性时，形成另外信号的状态变化。
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公开(公告)号：US20120098472A1
公开(公告)日：2012-04-26
申请号：US12909411
申请日：2010-10-21
申请人： James J. Wrobel , Gary L. Miles
发明人： James J. Wrobel , Gary L. Miles
IPC分类号： H02P6/20
摘要： A mechanism for a motor controller for engaging a spinning motor is provided. A power section is configured to provide power to the motor. A control is configured to control the power section. The control is configured to search for a motor frequency of the motor by applying a small excitation voltage to the motor, and the excitation voltage is initially applied at a voltage frequency which is a maximum frequency. The control is configured to track the motor frequency until the motor frequency is below an equivalent speed command and engage the motor by applying a higher voltage to the motor.
摘要翻译： 提供了用于接合旋转电动机的电动机控制器的机构。 功率部分被配置为向电动机提供电力。 控制器被配置为控制功率部分。 该控制被配置为通过向电动机施加小的激励电压来搜索电动机的电动机频率，并且以最大频率的电压频率初始地施加激励电压。 控制器配置为跟踪电机频率，直到电机频率低于等效速度指令，并通过向电机施加更高的电压来接合电机。
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公开(公告)号：US20110266987A1
公开(公告)日：2011-11-03
申请号：US12772486
申请日：2010-05-03
IPC分类号： H02P6/14
摘要： A variable speed drive for an electric motor has an inverter for receiving pulse width modulation controls. The inverter communicates power signals to a poly-phase electrical motor. A resolver communicates signals from the poly-phase motor back to a motor control. The motor control includes a speed control, a field-oriented control, and a pulse width modulation drive for driving the inverter. The resolver is connected to the speed control and to the field-oriented control, and further communicates with a synchronous compensator. The synchronous compensator is configured to drive the harmonic content at a target frequency or frequencies in a selected signal towards zero over time.
摘要翻译： 用于电动机的变速驱动器具有用于接收脉冲宽度调制控制的逆变器。 变频器将电力信号传送到多相电机。 旋转变压器将来自多相电机的信号传送回电机控制器。 电动机控制包括速度控制，场定向控制和用于驱动逆变器的脉宽调制驱动。 解算器连接到速度控制和现场控制，并进一步与同步补偿器通信。 同步补偿器被配置为以所选信号中的目标频率或频率的谐波内容随着时间零向零驱动。
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公开(公告)号：US08536811B2
公开(公告)日：2013-09-17
申请号：US12909411
申请日：2010-10-21
申请人： James J. Wrobel , Gary L. Miles
发明人： James J. Wrobel , Gary L. Miles
摘要： A mechanism for a motor controller for engaging a spinning motor is provided. A power section is configured to provide power to the motor. A control is configured to control the power section. The control is configured to search for a motor frequency of the motor by applying a small excitation voltage to the motor, and the excitation voltage is initially applied at a voltage frequency which is a maximum frequency. The control is configured to track the motor frequency until the motor frequency is below an equivalent speed command and engage the motor by applying a higher voltage to the motor.
摘要翻译： 提供了用于接合旋转电动机的电动机控制器的机构。 功率部分被配置为向电动机提供电力。 控制器被配置为控制功率部分。 该控制被配置为通过向电动机施加小的激励电压来搜索电动机的电动机频率，并且以最大频率的电压频率初始地施加激励电压。 控制器配置为跟踪电机频率，直到电机频率低于等效速度指令，并通过向电机施加更高的电压来接合电机。
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公开(公告)号：US08169172B2
公开(公告)日：2012-05-01
申请号：US12772486
申请日：2010-05-03
IPC分类号： H02P6/06
摘要： A variable speed drive for an electric motor has an inverter for receiving pulse width modulation controls. The inverter communicates power signals to a poly-phase electrical motor. A resolver communicates signals from the poly-phase motor back to a motor control. The motor control includes a speed control, a field-oriented control, and a pulse width modulation drive for driving the inverter. The resolver is connected to the speed control and to the field-oriented control, and further communicates with a synchronous compensator. The synchronous compensator is configured to drive the harmonic content at a target frequency or frequencies in a selected signal towards zero over time.
摘要翻译： 用于电动机的变速驱动器具有用于接收脉冲宽度调制控制的逆变器。 变频器将电力信号传送到多相电机。 旋转变压器将来自多相电机的信号传送回电机控制器。 电动机控制包括速度控制，场定向控制和用于驱动逆变器的脉宽调制驱动。 解算器连接到速度控制和现场控制，并进一步与同步补偿器通信。 同步补偿器被配置为以所选信号中的目标频率或频率的谐波内容随着时间零向零驱动。
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公开(公告)号：US5719566A
公开(公告)日：1998-02-17
申请号：US673389
申请日：1996-06-28
申请人： John Readman , James J. Wrobel , Timothy M. Mayer
发明人： John Readman , James J. Wrobel , Timothy M. Mayer
CPC分类号： G05D1/0055 , B64D45/0005 , B64D2045/001
摘要： The actuation system of the present invention is based upon sensing relatively small delta errors over relative short strokes as opposed to absolute travel error. An actuation system in accordance with the invention includes an actuator (30, 40, 50, 60, 70, 80, 90 and 100) attached to a structure (C) and an element (20, 21, 22, 23, 24 and 25) to be moved relative to the structure, the actuator causing movement of the element along a path of travel between travel limits (A and B) relative to the structure and having a failure mode when the actuator has moved more than a fixed distance relative to a reference position on the path of travel; a position transducer (34, 44, 54, 65, 74, 84, 94 and 104), coupled to the structure and to the element, for producing an output signal representing a position of the element along the path of travel, the position transducer having a position resolution error along the path of travel greater than the fixed distance; a processor (200), coupled to the output signal, for sampling the output signal periodically a plurality of times during the movement of the element along the path of travel and in response to samples producing a signal indicating if a failure mode has occurred and wherein a sampling rate of the periodic samples is chosen so that a distance that the actuator travels between successive samples times the position resolution error is less than the fixed distance.
摘要翻译： 本发明的致动系统基于相对于绝对行进误差来检测相对较短的行程的相对小的增量误差。 根据本发明的致动系统包括附接到结构（C）和元件（20,21,22,23,24和25）的致动器（30,40,50,60,70,80,90和100） ）相对于结构移动，致动器引起元件沿相对于结构的行进限制（A和B）之间的行进路径的移动，并且当致动器相对于该结构移动超过固定距离时具有故障模式 行程路线上的参考位置; 耦合到结构和元件的位置传感器（34,44,54,65,74,84,94和104），用于产生表示元件沿行进路径的位置的输出信号，位置传感器 沿行进路径具有大于固定距离的位置分辨率误差; 耦合到所述输出信号的处理器（200），用于在所述元件沿着所述行进路径移动期间周期性地多次对所述输出信号进行采样，以及响应于产生指示是否已经发生故障模式的信号的样本，并且其中 选择周期性样本的采样率，使得致动器在连续采样之间的距离乘以位置分辨率误差小于固定距离。
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