公开(公告)号：US20040227482A1

公开(公告)日：2004-11-18

申请号：US10809508

申请日：2004-03-26

Inventor： Makoto Yoshida ,  Naomi Goto

IPC: H02P007/36

CPC classification number: B60H1/3222 ,  B60H1/3226 ,  F04B35/04 ,  F04B49/20 ,  F04B2203/0201 ,  F04B2203/0202 ,  H02P23/03

Abstract: Load fluctuation of a refrigerating cycle under severe conditions needs to be overcome. For instance, a compressor driver which can positively drive the compressor employed even in a vehicle is desirable. To be more specific, at the start of the compressor, a phase of the current flowing in the motor is controlled to be ahead of an induction voltage, then the advancement of the phase is controlled to decrease. Under an unstable condition to detect a position, such as at the start under pressure-difference, the foregoing control allows the phase to advance up to the current-phase where the max. torque can be produced, thereby drawing the instantaneous max. torque of the motor for starting the compressor. Then the control reduces the advancement for obtaining a stable operation. This control method can realize a compressor driver having start-performance enough to overcome pressure-difference.

Abstract translation: 需要克服在恶劣条件下制冷循环负荷波动。 例如，即使在车辆中也能够正确地驱动压缩机的压缩机驱动器是理想的。 更具体地说，在压缩机开始时，将在电动机中流动的电流的相位控制在感应电压之前，然后控制相位的提前。 在不稳定状态下，例如在压力差开始时检测位置，上述控制允许相位前进到当前阶段，其中最大。 可以产生扭矩，从而绘制瞬时最大值。 用于启动压缩机的电机的转矩。 然后，该控制减少了获得稳定操作的进步。 该控制方法可以实现具有足够的起动性能的压缩机驱动器来克服压力差。

公开(公告)号：US20040213676A1

公开(公告)日：2004-10-28

申请号：US10818197

申请日：2004-04-05

Inventor： David L. Phillips ,  William B. Mcdonough ,  Ned M. Santos ,  Rufino Naval JR.

IPC: F04B049/06

CPC classification number: F04B51/00 ,  F04B17/03 ,  F04B49/02 ,  F04B49/065 ,  F04B49/10 ,  F04B2203/0201

Abstract: An active sensing and switching device for use in controlling current to a load, comprising a controller means (U1) for disconnecting the load from a power source by providing a switch-open control signal based on a signal indicating a sensed value of electrical current to the load, characterized in that the controller means (U1) determines a nominal value for the electrical current to the load based on monitoring the signal indicating the sensed value of electrical current to the load. A load control system is also provided, including a single ASSD adapted to receive signals indicating sensed values of electrical current to a plurality of respective loads, and further comprising a plurality of load control modules adapted so as to be disposed in proximity to respective loads or a main power line, wherein the load control modules provide respective signals indicating sensed values of electrical currents to the respective loads.

Abstract translation: 一种用于控制负载电流的主动感测和开关装置，包括控制装置（U1），用于通过基于指示电流的感测值的信号提供开关控制信号来断开负载与电源的连接 负载，其特征在于，控制器装置（U1）基于监视指示感测到的负载电流值的信号来确定到负载的电流的标称值。 还提供了一种负载控制系统，其包括适于接收指示对多个相应负载的电流的感测值的信号的单个ASSD，并且还包括多个负载控制模块，其适于设置在相应负载附近或 主电源线，其中所述负载控制模块向各个负载提供指示感测的电流值的相应信号。

公开(公告)号：US06784633B2

公开(公告)日：2004-08-31

申请号：US10262004

申请日：2002-10-01

Applicant: Shoichi Ieoka

Inventor： Shoichi Ieoka

IPC: H02P146

CPC classification number: F04B35/04 ,  F04B27/0895 ,  F04B2203/0201 ,  F04B2203/0202 ,  H02P25/0925

Abstract: A method for controlling a switched reluctance motor includes controlling an applied voltage to supply constant current to each of the coils of the switched reluctance motor in order of rotation; and determining a switching timing for switching the phases of the coils such that the switching to an exited phase occurs when the variation amount of the applied voltage to the coil having the exited phase is substantially zero.

Abstract translation: 用于控制开关磁阻电动机的方法包括控制施加的电压以按照旋转顺序向开关磁阻电动机的每个线圈提供恒定电流; 以及确定用于切换线圈的相位的切换定时，使得当具有退出相位的线圈的施加电压的变化量基本上为零时，发生切换到退出相位。

公开(公告)号：US06760207B2

公开(公告)日：2004-07-06

申请号：US10014692

申请日：2001-12-11

Applicant: Arnold G. Wyatt ,  Alex Alvey

Inventor： Arnold G. Wyatt ,  Alex Alvey

IPC: H02H308

CPC classification number: H02H7/08 ,  F04B49/065 ,  F04B2203/0201 ,  F04B2203/0205 ,  F04B2203/0212 ,  H02H3/08

Abstract: A compressor terminal fault interruption method and interrupter for disconnecting power to a compressor terminal when terminal venting failure is imminent including a current sensing circuit for sensing current provided to the terminal by a power source and outputting a sensed signal representing the current provided to the terminal and a control circuit. The control circuit includes a first circuit for outputting a reference signal representing input current much higher than locked rotor current, a second circuit connected to the current sensing circuit and the first circuit for comparing the sensed signal to the reference signal, and a third circuit connected to the second circuit for disconnecting power to the terminal when the sensed signal exceeds the reference signal, thereby preventing excessive current from reaching the compressor terminal.

Abstract translation: 一种压缩机终端故障中断方法和中断器，用于当终端排气故障即将到来时断开对压缩机端子的电力，包括用于感测由电源提供给终端的电流的电流感测电路，并输出表示提供给终端的电流的感测信号，以及 一个控制电路。 控制电路包括：第一电路，用于输出表示比锁定的转子电流高得多的输入电流的参考信号;连接到电流感测电路的第二电路和用于将感测到的信号与参考信号进行比较的第一电路;以及第三电路 当检测到的信号超过参考信号时，切断到终端的电力的第二电路，从而防止过大的电流到达压缩机端子。

公开(公告)号：US20040062658A1

公开(公告)日：2004-04-01

申请号：US10655778

申请日：2003-09-05

Inventor： Thomas L. Beck ,  Robb G. Anderson ,  Steven J. Olson

IPC: F04B049/00

CPC classification number: F04D13/10 ,  E21B43/126 ,  F04B47/02 ,  F04B49/065 ,  F04B2203/0201 ,  F04B2203/0202 ,  F04B2203/0207 ,  F04B2203/0208 ,  F04B2205/00 ,  F04B2205/05 ,  F04D15/0066 ,  F04D15/0088

Abstract: A control system for the operation of a progressing cavity pump which may be used for production of gas and/or oil from a well. The control system includes vector feedback model to derive values of torque and speed from signals indicative of instantaneous current and voltage drawn by the pump motor, a pump model which derives values of the fluid flow rate and the head pressure for the pump from torque and speed inputs, a pumping system model that derives from the estimated values of the pump operating parameters an estimated value of a pumping system parameter and controllers responsive to the estimated values of the pumping system parameters to control the pump to maintain fluid level at the pump input near an optimum level.

Abstract translation: 用于操作可以用于从井产生气体和/或油的进气腔泵的控制系统。 控制系统包括向量反馈模型，以从表示由泵电动机牵引的瞬时电流和电压的信号导出转矩和速度的值，泵模型，其从转矩和速度导出流体流速的值和泵头压力 输入，泵送系统模型，其从泵运行参数的估计值得出泵送系统参数的估计值，以及响应于泵送系统参数的估计值的控制器，以控制泵维持泵输入附近的液位 最佳水平。

公开(公告)号：US20030206805A1

公开(公告)日：2003-11-06

申请号：US10257302

申请日：2003-03-12

Inventor： Michael B. Bishop ,  Roger Pili ,  Bruce E. Knuth ,  Moe K. Barani ,  Ron Flanary ,  Laurentius A.G. Mentik ,  George R. Steber ,  Martin Piedl

IPC: F04B049/06

CPC classification number: F04B1/0426 ,  F04B23/103 ,  F04B49/20 ,  F04B2201/1203 ,  F04B2203/0201 ,  F04B2203/0207 ,  F04B2203/0208 ,  F04B2203/0209

Abstract: The invention provides a variable speed hydraulic pump designed to operate at a maximum horsepower throughout its pressure range by adjusting motor speed according to motor load parameters. In particular, the variable speed hydraulic pump includes a hydraulic pump unit coupled to a variable speed electric motor by a drive unit and to a hydraulic fluid tank for pressurizing and pumping hydraulic fluid when operated by the motor. A motor controller is electrically connected to the motor to supply drive signals to the motor based on electrical characteristics of the drive signals which are dependent on the load exerted on the motor. Suction from the load is provided by both the main pump and a bidirectional supercharging pump by reversing the direction of the motor and shifting a 4/3 valve to connect the main pump inlet to the load and its outlet to tank. In addition, the controller reduces the motor speed at the maximum rated pressure to just maintain the pressure, to reduce the amount of fluid pumped through the maximum pressure relief valve.

Abstract translation: 本发明提供了一种变速液压泵，其设计为通过根据电动机负载参数调整电动机速度在其整个压力范围内以最大功率运行。 特别地，变速液压泵包括通过驱动单元连接到变速电动机的液压泵单元和用于在由电动机操作时对液压流体进行加压和泵送的液压油箱。 电动机控制器电连接到电动机，以基于驱动信号的电特性向电动机提供驱动信号，驱动信号取决于施加在电动机上的负载。 从主泵和双向增压泵通过反转电机的方向和移动4/3阀将主泵入口连接到负载及其出口到罐而由负载提供吸力。 此外，控制器将电机速度降低到最大额定压力，以保持压力，以减少通过最大压力释放阀泵送的液体量。

公开(公告)号：US20030062869A1

公开(公告)日：2003-04-03

申请号：US10262004

申请日：2002-10-01

Inventor： Shoichi Ieoka

IPC: H02P007/36

CPC classification number: F04B35/04 ,  F04B27/0895 ,  F04B2203/0201 ,  F04B2203/0202 ,  H02P25/0925

Abstract: A method for controlling a switched reluctance motor includes controlling an applied voltage to supply constant current to each of the coils of the switched reluctance motor in order of rotation; and determining a switching timing for switching the phases of the coils such that the switching to an exited phase occurs when the variation amount of the applied voltage to the coil having the exited phase is substantially zero.

Abstract translation: 用于控制开关磁阻电动机的方法包括控制施加的电压以按照旋转顺序向开关磁阻电动机的每个线圈提供恒定电流; 以及确定用于切换线圈的相位的切换定时，使得当具有退出相位的线圈的施加电压的变化量基本上为零时，发生切换到退出相位。

公开(公告)号：US20020141874A1

公开(公告)日：2002-10-03

申请号：US09819536

申请日：2001-03-27

Inventor： Ivar L. Schoenmeyr

IPC: F04B049/10 ,  F04B049/06

CPC classification number: F04B43/026 ,  F04B43/04 ,  F04B49/022 ,  F04B2203/0201 ,  F04B2203/0205

Abstract: A pump assembly that has a control circuit and a pressure switch which control the operation of a pump motor. The motor drives a positive displacement pump that is coupled to a fluid system. The control circuit includes a pulse width modulator circuit. The control circuit is activated when a pressure switch senses that a line pressure of the fluid system is below a threshold value. The control circuit can either operate in a continuous mode to provide a constant signal to the motor, or a pulse regulating mode to provide a series of pulses to the motor. The pulses begin with a minimum width and gradually increase until a predetermined current limit has been attained, or the motor reaches a full speed with the control circuit in a continuous on state. The speed of the motor will then correspond to the flow demanded by the fluid system. The energy provided by the pulses is varied as a function of changes in peak current drawn by the motor. The peak current is sensed and used to determine the pulse width. Changing the pulse energy varies the speed of the motor.

Abstract translation: 具有控制电路和控制泵电动机的操作的压力开关的泵组件。 电动机驱动一个与流体系统连接的容积式泵。 控制电路包括脉宽调制电路。 当压力开关感测到流体系统的管路压力低于阈值时，控制电路被激活。 控制电路可以以连续模式工作以向电动机提供恒定的信号，或者脉冲调节模式以向电动机提供一系列脉冲。 脉冲以最小宽度开始，并逐渐增加，直到达到预定电流极限，或者电机在连续导通状态下达到全速。 电机的速度将对应于流体系统所要求的流量。 由脉冲提供的能量随电动机汲取的峰值电流的变化而变化。 检测峰值电流并用于确定脉冲宽度。 改变脉冲能量会改变电机的速度。

公开(公告)号：US20020106945A1

公开(公告)日：2002-08-08

申请号：US10014692

申请日：2001-12-11

Inventor： Arnold G. Wyatt ,  Alex Alvey

IPC: H01R009/22

CPC classification number: H02H7/08 ,  F04B49/065 ,  F04B2203/0201 ,  F04B2203/0205 ,  F04B2203/0212 ,  H02H3/08

Abstract: A compressor terminal fault interruption method and interrupter for disconnecting power to a compressor terminal when terminal venting failure is imminent including a current sensing circuit for sensing current provided to the terminal by a power source and outputting a sensed signal representing the current provided to the terminal and a control circuit. The control circuit includes a first circuit for outputting a reference signal representing input current much higher than locked rotor current, a second circuit connected to the current sensing circuit and the first circuit for comparing the sensed signal to the reference signal, and a third circuit connected to the second circuit for disconnecting power to the terminal when the sensed signal exceeds the reference signal, thereby preventing excessive current from reaching the compressor terminal.

Abstract translation: 一种压缩机终端故障中断方法和中断器，用于当终端排气故障即将到来时断开对压缩机端子的电力，包括用于感测由电源提供给终端的电流的电流感测电路，并输出表示提供给终端的电流的感测信号，以及 一个控制电路。 控制电路包括：第一电路，用于输出表示比锁定的转子电流高得多的输入电流的参考信号;连接到电流感测电路的第二电路和用于将感测到的信号与参考信号进行比较的第一电路;以及第三电路 当检测到的信号超过参考信号时，切断到终端的电力的第二电路，从而防止过大的电流到达压缩机端子。

公开(公告)号：US20020093327A1

公开(公告)日：2002-07-18

申请号：US09989396

申请日：2001-11-21

Applicant: LG Electronics, Inc.

Inventor： Yoo Jae Yoo ,  Jae Chun Lee ,  Min Kyu Hwang ,  Chel Woong Lee

IPC: G01R023/00 ,  G01R023/12

CPC classification number: F04B35/045 ,  F04B49/065 ,  F04B2201/0202 ,  F04B2203/0201 ,  F04B2203/0202

Abstract: An apparatus for detecting shaking of stroke of a linear compressor and a method are provided. A linear compressor mis-operates due to change in an external voltage or noise because the shaking of the stroke is detected by the amounts of change in the stroke or current. In order to solve the above problem, a control apparatus of a compressor includes a stroke/current phase difference calculator for calculating the phase differences of the stroke and current using the stroke and the current, which are determined by the increase and the reduction of the stroke due to the voltage generated by a linear compressor, a phase difference change amount calculator for calculating phase difference change amounts using the calculated phase differences of the stroke and the current, a shaking detector for comparing the calculated phase difference change amounts with a reference value for determining whether the shaking of the stroke is detected, to thus determine the shaking of the stroke, and a stroke controller for receiving a stroke shaking detection signal from the stroke shaking detector and changing the stroke voltage according to the magnitude of the request of cooling capacity, which is determined by the change in load, to thus control the driving of the linear compressor, during the operation of the linear compressor.

Abstract translation: 提供了一种用于检测线性压缩机的行程抖动的装置和方法。 线性压缩机由于外部电压或噪声的变化而失灵，因为行程的振动是通过行程或电流的变化量来检测的。 为了解决上述问题，压缩机的控制装置包括行程/电流相位差计算器，用于计算使用行程和电流的行程和电流的相位差，这是通过增加和减少确定的 由线性压缩机产生的电压引起的行程;相位差变化量计算器，用于使用计算出的行程和电流的相位差计算相位差变化量;振动检测器，用于将计算出的相位差变化量与参考值进行比较 用于确定是否检测到行程的振动，从而确定行程的晃动;以及行程控制器，用于从行程抖动检测器接收行程抖动检测信号，并根据冷却请求的大小改变行程电压 容量，由负载变化决定，从而控制李的驾驶 在压缩机附近，在线性压缩机运行期间。