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公开(公告)号：US5451846A
公开(公告)日：1995-09-19
申请号：US166743
申请日：1993-12-14
CPC分类号： H02P7/298 , H02P5/68 , Y10S388/911
摘要： A control system for energizing a direct current (DC) motor with alternating current (AC) power includes a first voltage sensor for a peak voltage of AC power; a second voltage sensor for a counter electromotive force (EMF) of the motor; a current sensor for an armature current of the motor; a digital processor having a first current controller responding to sensed armature current and a current reference, a cooperating second current controller responding to sensed peak voltage, sensed counter EMF and the current reference signal, and a gating circuit responding to the controllers; and a thyristor converter circuit sequentially gating portions of half cycles of AC power to the motor in response to firing signals from the gating circuit. The controllers may control a gate angle of the firing signals, the control system may include a third voltage sensor for a terminal voltage of the motor, and the armature current may have discontinuous and continuous waveforms. The processor may calculate a start of continuous current value which is a function of a calculated peak voltage of the AC power and a calculated counter EMF of the motor. The calculated counter EMF is sensed when an absolute value of sensed armature current is less than the start of continuous current value but, otherwise, the calculated counter EMF is related to motor terminal voltage. The calculated peak voltage of AC power is an average of an absolute value of a peak positive sensed voltage and an absolute value of a peak negative voltage under calculated discontinuous current conditions but, otherwise, the calculated peak voltage is the average plus a calculated commutation notch line voltage loss. The calculated commutation notch line voltage loss may be a function of the gate angle, the sensed armature current and the calculated peak voltage. The gate angle may be a sum of gate angles from the two controllers.
摘要翻译： 用于对具有交流（AC）功率的直流（DC）电动机通电的控制系统包括用于AC电力的峰值电压的第一电压传感器; 用于电动机的反电动势（EMF）的第二电压传感器; 用于电动机的电枢电流的电流传感器; 数字处理器，其具有响应感测的电枢电流和电流参考的第一电流控制器，响应于感测的峰值电压的协作的第二电流控制器，感测到的计数器EMF和当前参考信号，以及响应于控制器的门控电路; 以及晶闸管转换器电路，响应于来自所述选通电路的触发信号，顺序地将部分半周期的交流电力门控给所述电动机。 控制器可以控制点火信号的门角，控制系统可以包括用于电动机的端子电压的第三电压传感器，并且电枢电流可以具有不连续和连续的波形。 处理器可以计算连续电流值的开始，其是计算的交流电力的峰值电压和计算的电动机的计数器EMF的函数的函数。 当感测到的电枢电流的绝对值小于连续电流值的开始时，计算出的计数器EMF被检测到，否则计算的计数器EMF与电动机端子电压有关。 计算出的交流电力峰值电压是计算的不连续电流条件下峰值正感测电压的绝对值和峰值负电压的绝对值的平均值，否则计算的峰值电压是平均加上计算出的换向槽口 线路电压损失。 计算的换向陷波线电压损耗可以是门角，感测的电枢电流和计算出的峰值电压的函数。 门角可以是来自两个控制器的门角的总和。
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公开(公告)号：US5321343A
公开(公告)日：1994-06-14
申请号：US17804
申请日：1993-02-16
CPC分类号： H02P5/68 , H02M7/1626
摘要： A control system for one or more dc motors in which thyristor power modules selectively gate portions of half cycles of ac voltage to the motor field and armature windings, has digitally implemented parallel inner control loops for the armature which each generate an intermediate control signal to which proportional plus derivative control action has been applied. Logic selects the intermediate control signal which phases back firing pulses for the thyristor power modules the most for application to a common digital integrator which produces a control signal having proportional plus integral control action. The voltage across each of the thyristors is monitored and used to detect continuous and discontinuous current operation for adjusting integrator gain.
摘要翻译： 用于一个或多个直流电动机的控制系统，其中晶闸管功率模块选择性地将对电动机电场和电枢绕组的交流电压的半个周期的部分栅极部分数字地实现用于电枢的并联内部控制环路，每个控制环路产生中间控制信号， 比例加微分控制动作已被应用。 逻辑选择中间控制信号，其将用于晶闸管功率模块的触发脉冲相位最多的应用于公共数字积分器，其产生具有比例加积分控制动作的控制信号。 监控每个晶闸管上的电压，并用于检测连续和不连续的电流运行，以调整积分器增益。
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公开(公告)号：US4079120A
公开(公告)日：1978-03-14
申请号：US425758
申请日：1973-12-18
申请人： Edward A. Cole , Robert S. Peterson
发明人： Edward A. Cole , Robert S. Peterson
IPC分类号： C01G43/025 , F27B7/33 , G21C21/02 , C01G43/02
CPC分类号： C01G43/025
摘要： This invention relates to an improved continuous calcining apparatus for consistently and controllably producing from calcinable reactive solid compounds of uranium, such as ammonium diuranate, uranium dioxide (UO.sub.2) having an oxygen to uranium ratio of less than 2.2. The apparatus comprises means at the outlet end of a calciner kiln for receiving hot UO.sub.2, means for cooling the UO.sub.2 to a temperature of below 100.degree. C and conveying the cooled UO.sub.2 to storage or to subsequent UO.sub.2 processing apparatus where it finally comes into contact with air, the means for receiving, cooling and conveying being sealed to the outlet end of the calciner and being maintained full of UO.sub.2 and so operable as to exclude atmospheric oxygen from coming into contact with any UO.sub.2 which is at elevated temperatures where it would readily oxidize, without the use of extra hydrogen gas in said means.
摘要翻译： 本发明涉及一种改进的连续煅烧装置，用于由可煅烧的铀的反应性固体化合物如二硫酸铀，氧铀比小于2.2的二氧化铀（UO 2）一致地和可控地生产。 该装置包括在用于接收热UO2的煅烧炉的出口端处的装置，用于将UO2冷却至低于100℃的温度并将冷却的UO2输送到储存室或随后的UO2处理装置的装置，在那里其最终与 空气中，用于接收，冷却和输送的装置被密封到煅烧炉的出口端并且保持充满UO2并且可操作以排除大气中的氧与任何在容易氧化的高温下的UO2接触 ，而不用在所述装置中使用额外的氢气。
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公开(公告)号：US5079998A
公开(公告)日：1992-01-14
申请号：US649625
申请日：1991-02-01
摘要： A pneumatic driver is disclosed. The pneumatic driver includes a frame and a shaft movable between an extended driving position and a retracted position relative to the frame. A first inflatable air bladder is supported by the frame. The first inflatable air bladder is operatively connected to the shaft so that when the first air bladder is inflated, the shaft is moved into an extended driving position. A second inflatable air bladder is supported by the frame and operatively connected to the shaft. When the second air bladder is inflated, the shaft is moved to a retracted position. A valve manifold operatively connects first and second air bladders for controlling inflation and deflation of the air bladders. The frame includes longitudinal guide rods and transverse frame members fixed to the guide rods. A shaft support member having the shaft mounted thereto is slidably mounted on the guiderods. Support rods are mounted to the shaft support member by bolts received in orifices to provide a clearance fit.
摘要翻译： 公开了一种气动驱动器。 气动驱动器包括框架和可相对于框架在延伸的驱动位置和缩回位置之间移动的轴。 第一可充气气囊由框架支撑。 第一可充气气囊可操作地连接到轴，使得当第一气囊膨胀时，轴被移动到延伸的驱动位置。 第二可充气气囊由框架支撑并且可操作地连接到轴。 当第二气囊膨胀时，轴被移动到缩回位置。 阀歧管可操作地连接第一和第二空气囊以控制空气囊的充气和放气。 框架包括固定到导杆的纵向导杆和横向框架构件。 具有安装在其上的轴的轴支撑构件可滑动地安装在该金刚石上。 支撑杆通过接收在孔中的螺栓安装到轴支撑构件上以提供间隙配合。
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公开(公告)号：US4998427A
公开(公告)日：1991-03-12
申请号：US443697
申请日：1989-11-29
申请人： Robert S. Peterson , John A. Larsen
发明人： Robert S. Peterson , John A. Larsen
CPC分类号： B21B37/52 , B21B2273/08 , B21B2273/10
摘要： A method for making delivery gauge corrections at low mill speeds during threading and tailing out of a workpiece by varying the interstand tension of the workpiece. The tension between the last two stands is used with a desired tension and the delivery AGC by tension mode of an existing delivery automatic gauge control (AGC) to change the speed of the downstream stands. During the threading and tailing out phases, the delivery AGC by speed is turned off and set to zero. In the full run phase, the interstand regulators are changed to a tension by roll gap mode, and an existing delivery automatic gauge control (AGC) by speed is used to provide a stand speed reference for the downstream stands. In the full run phase, the delivery (AGC) by tension is turned off an set to zero. In the tailing out phase optionally, the tension between each stand is used in a similar manner to provide a speed reference change for each stand immediately downstream from where a tension controller is located.
摘要翻译： 一种用于通过改变工件的夹层张力来在穿过工件和拖出工件期间以低轧机速度进行输送量规校正的方法。 最后两个支架之间的张力以期望的张力和通过现有输送自动计量控制（AGC）的张力模式的输送AGC被使用以改变下游支架的速度。 在线程和拖尾阶段，速度递送AGC被关闭并设置为零。 在全程运行阶段，通过滚动间隙模式将机架间调节器改变为张力，并且使用现有的通过速度传递的自动量规控制（AGC）为下游机架提供立式速度参考。 在全运行阶段，通过张力传递（AGC）被设置为零。 在拖尾阶段可选地，以相似的方式使用每个支架之间的张力，以便立即在张力控制器所在的下游的每个支架提供速度参考变化。
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6.发明授权
公开(公告)号：US4982145A
公开(公告)日：1991-01-01
申请号：US404393
申请日：1989-09-08
申请人： Robert S. Peterson
发明人： Robert S. Peterson
CPC分类号： H02M7/529 , H02P23/22 , H02P7/2855 , Y02P80/116
摘要： A digital current control arrangement for optimizing the transport time delay of a thyristor power supply used as a source of armature current for a DC motor utilizes a coarse gate angle interrupt subroutine to perform a preliminary calculation of the gate firing angle for the next thyristor to be fired. The coarse gate angle calculation is performed at a predetermined time following the firing of a previous thyristor. A finite gate angle interrupt subroutine is also provided for recalculating the gate firing angle at a second predetermined time just prior to the firing of the thyristor. The finite and coarse gate angle interrupt subroutines both perform their respective calculations using the common parameters. A flag passing arrangement is also included in the current control arrangement and is effective to insure that the finite gate firing angle is the preferred calculation used in the firing of the next thyristor.
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公开(公告)号：US4307591A
公开(公告)日：1981-12-29
申请号：US135748
申请日：1980-03-31
申请人： Robert S. Peterson
发明人： Robert S. Peterson
CPC分类号： B21B37/50
摘要： In a hot strip rolling mill a velocity damping compensator circuit is added to the current regulating loop of the looper motor drive generating a torque on the looper arm mechanism between roll stands, thereby to prevent disturbances when applying the looper arm and looper roller against the strip being rolled.
摘要翻译： 在热轧带钢轧机中，速度阻尼补偿器电路被添加到活套电动机驱动器的电流调节回路中，在轧辊机架之间产生在弯针机构上的扭矩，从而防止当将弯针臂和弯针辊施加在钢带上时的干扰 正在滚动
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公开(公告)号：US4199808A
公开(公告)日：1980-04-22
申请号：US864891
申请日：1977-12-27
申请人： Robert S. Peterson
发明人： Robert S. Peterson
摘要： An inverse timer for a process line is disclosed in which the forward end of the material is detected at a known distance from an instrument which is to be activated. The inverse timer is initiated upon forward end detection, and in a small increment of time, .DELTA.T seconds later, the instrument is activated; .DELTA.T is equal to the time required for the material to move from the point of detection to the location of the instrument, i.e., the transport time minus the reaction time of the instrument. The inverse timer includes two potentiometers for independently adjusting the transport time and the reaction times. Since the velocity of the material may vary widely during production, the inverse timer enables rapid adjustments to be made to accommodate for these new conditions without the laborious empirical determination of optimum settings of interacting potentiometers.
摘要翻译： 公开了一种用于处理线的反向定时器，其中材料的前端在距待被激活的仪器已知距离处被检测。 反向定时器在前端检测时启动，并且在一小段时间内，DELTA T秒后，仪器被激活; DELTA T等于材料从检测点移动到仪器位置所需的时间，即运输时间减去仪器的反应时间。 逆定时器包括两个用于独立调节传输时间和反应时间的电位器。 由于材料的速度在生产过程中可能会有很大变化，所以反时限计器能够进行快速调整以适应这些新条件，而无需经验确定相互作用的电位计的最佳设置。
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9.发明授权D.C. motor speed control apparatus having both armature current rate control and zero current deadtime optimized 失效具有电枢电流速率控制和零电流死区时间优化的电机速度控制装置
公开(公告)号：US4152632A
公开(公告)日：1979-05-01
申请号：US815334
申请日：1977-07-13
申请人： Robert S. Peterson
发明人： Robert S. Peterson
CPC分类号： H02P7/293 , Y10S388/903 , Y10S388/917
摘要： A speed control system is disclosed for a direct current motor drive energized by a thyristor armature supply. Voltage regulation for the thyristor supply is through a parallel current controller in which an armature current controller is arranged in parallel with positive and negative rate current controllers, the output of this parallel combination being applied as a voltage control signal to the thyristor supply through a parallel switch which mandates priority of control. Normally, the current controller will determine the thyristor armature supply voltage, but if the armature current rate exceeds a preset current rate reference, the parallel switch intercedes and the appropriate rate current controller takes over control of the thyristor supply voltage. When the thyristor armature supply current rate goes below the rate reference setting, the armature current controller will again resume control of the thyristor supply voltage.
摘要翻译： 公开了一种用于由可控硅电枢电源供电的直流电动机驱动的速度控制系统。 晶闸管电源的电压调节是通过并联电流控制器，其中电枢电流控制器与正负电流电流控制器并联设置，并联组合的输出作为电压控制信号通过并联作用施加到晶闸管电源 开关要求控制优先。 通常情况下，电流控制器将确定晶闸管电枢电源电压，但如果电枢电流速率超过预设的电流速率参考值，则并联开关中断，适当的速率电流控制器接管晶闸管电源电压。 当晶闸管电枢电源电流速率低于速率参考设置时，电枢电流控制器将再次恢复晶闸管电源电压的控制。
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公开(公告)号：US5355060A
公开(公告)日：1994-10-11
申请号：US867098
申请日：1992-08-14
申请人： Robert S. Peterson
发明人： Robert S. Peterson
CPC分类号： H02P7/2855
摘要： An impact load controller (28) compensates for the speed drop of a drive motor (12), which speed drop is caused by a load disturbance applied to the drive motor (12). A change in the dynamics of a speed controller (30, 34) in a speed regulator system for a stand in a tandem rolling mill is initiated by detecting a speed error (WE) which is greater than a predetermined speed error value and is removed after the speed error has been reduced to a predetermined value. The controller (28) is a pure rate controller whose input is converted into a rate change in speed error, which is multiplied by a gain factor. The resultant gain value product is initially increased by a predetermined factor to provide a high input signal to the (PI) speed controller (34) of a multi-loop speed regulator system for the drive motor (12), and to precharge a low pass filter. Thereafter, the output of the impact load controller (28) is a function of the time constant of the low pass filter; whereby the product gain consisting of the rate of change in speed error decays exponentially. The load impact controller (28) can be either a microprocessor type of control arrangement or an analog type of control arrangement.
摘要翻译： PCT No.PCT / US90 / 06112 Sec。 371日期：1992年8月14日 102（e）日期1992年8月14日PCT 1990年10月24日PCT公布。 出版物WO92 / 08275 日期：1992年5月14日。冲击负载控制器（28）补偿驱动马达（12）的速度下降，该速度下降是由施加于驱动马达（12）的负载扰动引起的。 通过检测大于预定速度误差值的速度误差（WE），并且在第一速度误差值之后被去除，在串联轧机的架子的速度调节器系统中的速度控制器（30,34）的动态变化开始 速度误差已经降低到预定值。 控制器（28）是纯速率控制器，其输入被转换为速度误差的速率变化，乘以增益因子。 所得的增益值乘积最初增加预定的因子以向驱动马达（12）的多回路速度调节器系统的（PI）速度控制器（34）提供高输入信号，并为低通 过滤。 此后，冲击负载控制器（28）的输出是低通滤波器的时间常数的函数; 由此，由速度误差变化率组成的乘积增益呈指数衰减。 负载冲击控制器（28）可以是微处理器类型的控制装置或模拟类型的控制装置。
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