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load torque     
相关语句
  负载转矩
     The optimum design example shows that the variation coefficient of load torque acting on cutting head is decreased 13.9% , and specific energy consumption is lowered 16.9% , which efficiently improves the load characteristic of cutting motor and increases the ratio of energy utilization.
     优化设计实例表明,截割头的负载转矩变差系数减小了13.9%,截割比能耗降低了16.9%,有效改善了截割电机的负载特性,提高了能量利用率。
     The optimum design example shows that the variation coefficient of load torque acting on cutting head is decreased 13.9%, and specific energy consumption is lowered 16.9%, which efficiently improves the load characteristic of cutting motor and increases the ratio of energy utilization.
     优化设计实例表明,截割头的负载转矩变差系数减小了13.9%,截割比能耗降低了16.9%,有效改善了截割电机的负载特性,提高了能量利用率。
短句来源
     Design and simulation of load torque observer in asynchronous motor system
     异步电动机系统负载转矩观测器的设计及仿真
短句来源
     The controller adjusts the factor based on the reference speed and load torque.
     这种自适应模糊控制器可以根据速度给定和负载转矩的变化实时调节解模糊的比例因子。
短句来源
     An Intelligent Observer Design Method for AC Vector Control Load Torque
     交流矢量控制负载转矩智能观测器设计
短句来源
更多       
  负载力矩
     The interface conversion efficiency is higher when thickness is smaller than 0.5 mm and load torque is greater than 36 N ? mm;
     当摩擦材料的厚度在0.5 mm以下、负载力矩在36 N·mm以上时,界面转换效率值较高。
短句来源
     Dynamic Decoupling Control of Load Torque of an Aeroengine Control Machinery
     航空发动机操纵负载力矩的动态解耦控制
短句来源
     When modulus of elasticity is higher than about 1.5 GPa, the interface conversion efficiency is higher in the greater range of load torque, so the motor has better driving capacity.
     当摩擦材料的弹性模量大于1.5 GPa时,在较大的负载力矩范围内,电动机的界面转换效率均较高,因此电动机具有较好的驱动能力。
短句来源
     Two methods,using motor model or motion equation and PI self adapting,to design load torque observers are presented. The system simulation model are built with the Matlab /Simulink software and the results are observed and analyzed.
     介绍了按电机模型(运动方程)推导和用PI自适应两种方法设计的负载力矩观测器,并用Matlab/Simulink进行仿真和结果对比。
短句来源
     The con- trol algorithm contains a nonlinear identification scheme which asymptotically tracks the true values of the load torque and resistance of each phase winding which are assumed to be constant but unknown. Once those parame- ters are identified,the high accurate position control are realized.
     该控制方案包括一个渐进跟踪负载力矩和绕组电阻实际值的非线性辨识算法,当辨识参数收敛到参数的实际值时,该控制器就能实现步进电动机的高精度位置控制。
短句来源
更多       
  负载扭矩
     Research on Load Torque Soft-sensing Technology of High-speed Spindle
     高速电主轴负载扭矩软测量技术研究
短句来源
     The dynamic friction compensation based on the error and change in error measurements can significantly improve the position precision in a broad range of the changes of load torque.
     基于误差和误差变化的动态摩擦补偿 ,在负载扭矩大范围变化的条件下均获得了高精度的定位控制 .
短句来源
     In view of variable frictions caused by the changes of load torque, an experimental comparison was made between the valve? controlled hydraulic motor servo system with PID control and that with friction compensation control.
     针对负载扭矩变化而造成摩擦特性的变化 ,采用PID控制和摩擦补偿控制对阀控液压马达控制系统的定位控制进行实验对比分析 .
短句来源
     The positioning error for a constant load torque can be eliminated by using fixed friction compensation, but poor positioning accuracy is caused by the same fixed friction compensation when the load torques varies greatly.
     简单的定摩擦补偿在恒定的负载扭矩下可以有效地减小稳态误差 ,但是当负载扭矩大范围变化时 ,稳态定位精度将大大降低 ;
短句来源
     A method of soft-sensing is put forward after the relation between spindle's power and load torque is analysed.
     在分析高速电主轴功率与负载转矩关系的基础上,提出了一种负载扭矩软测量的方法。
短句来源
  阻转矩
     Based on the operation of electric equipments incorporated in a flue gas expander train, the author has mainly analyzed the characteristics of driven machines such as moment of inertia and load torque indicated when the train is at the starting state, and has described the necessity and possibility for selecting and using motors with high starting torque difference (difference between allowable torque of a motor and load torque of a machine) and high starting thermal capability.
     根据烟气轮机机组中电气运行情况,重点分析了机组启动状态下,被驱动机械的转动惯量及阻力矩的特点,说明选用高启动转矩差值(电动机的允许转矩与机械阻转矩之差)及高启动热容量电动机的必要性和可能性。
短句来源

 

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      load torque
    Pronounced manifestations of hysteresis were found in the dependence of the joint angle on the external load torque.
          
    The regularities of change in the efficiency of spiroid speed-reduction gearing depending on the load torque are experimentally established and the rated parameters are determined for the torques on the nonstop run.
          
    The proposed control strategy combines a Luenberger observer (load angular speed and load torque disturbance estimations) and a robust CRONE controller.
          
    The proposed control strategy combines a Luenberger observer (load angular speed and load torque disturbance estimations) and a robust CRONE controller.
          
    In the first zone of load/torque combinations, activation of antagonist fingers (i.e., fingers that generate antagonist moments) is necessary to prevent slipping.
          
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    In this paper, a reduced-order observer to estimate the external disturbance, the load torque, with an unknown but constant value for a D. C. motor is introduced. control system in order that perfect static accuracy can be obtained and the impact drop is successfully improved. The design procedures and experimental circuits of such an observer and control system are given. The system experiment shows that this observer is available in engineering practice.

    本文提出一种估计直流电动机上常值未知外扰(负载力矩)的降维观测器。补偿信号加到LQSF(线性二次型指标状态反馈)调速系统上去以实现无静差,且可有效地改善动态速降。给出了这类观测器和调速系统的设计方法和线路。系统实验表明这种观测器在工程实际上是可用的。

    A system using double channels to improve anti-interference index of SCR-D double loop control system is presented.The feed forward chanal constitutes with estimater of external load disturb and compensator . The load torque estimater based on Z-80 is used here. The theory and method of implementation of the load torque estimater is introduced in this paper. We performed the experiment in automatic control laboratory of our college and obtained working property of load torque and experimental...

    A system using double channels to improve anti-interference index of SCR-D double loop control system is presented.The feed forward chanal constitutes with estimater of external load disturb and compensator . The load torque estimater based on Z-80 is used here. The theory and method of implementation of the load torque estimater is introduced in this paper. We performed the experiment in automatic control laboratory of our college and obtained working property of load torque and experimental curve of anti-interference of the system individually.

    本文提出用双通道原理来改善SCR—D双环调速系统抗负载干扰性能,前馈通道由外扰负载估计器与补偿器组成,负载转矩估计器由Z80单板机实现,文中介绍了微机实现负载转矩估计器原理及方法,并作了模拟实验,分别得出了负载转矩工作特性与系统抗扰实验曲线,获得了明显的缩短扰动后的恢复时间与减小动态速降的效果。文中还对负载转矩数字估计器的鲁棒性进行了初步讨论。

    The circuit model for the armature loop of a d.c.independent exciting-motor is built by the equivalent capacitance approach.The block diagram of athree-axes electrical revolving stage driving system for aviations is alsoobtained.The method to decrease errors introduced in the system caused bythe load torque and friction torque is discussed.A speed sampling techniquewithout techo-generators is suggested.It is proved by experiments that thenoval speed sampling technique behaves a wider range of speed...

    The circuit model for the armature loop of a d.c.independent exciting-motor is built by the equivalent capacitance approach.The block diagram of athree-axes electrical revolving stage driving system for aviations is alsoobtained.The method to decrease errors introduced in the system caused bythe load torque and friction torque is discussed.A speed sampling techniquewithout techo-generators is suggested.It is proved by experiments that thenoval speed sampling technique behaves a wider range of speed regulations.and the performance of the drive system is improved in the lower speedrange.

    本文用等值电容法建立它激直流电动机电枢回路的电路模型,进而得到航空用三轴电动转台直流调速系统的结构框图。文中讨论了如何降低负载阻力矩给系统造成的误差,并列举了几种典型控制方案的实用结构框图,还论证了一种无测速机的速度信号采样方案。实验证明,这一方案适用于更大的调速比的系统,并改善了系统在低速下的性能。

     
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