查询词典 speed control

When the system starts, the speed outer ring saturats non-functional, the current inner ring plays a major role to regulate the starting current to maintain the maximum so that the speed linear change, to reach a given value; when it operates steadily, the speed negative feedback from the outer ring plays a major role ,to let the speed changes with the given speed voltage , at the same time the current inner ring regulates the armature current of motor adjustment to balance the load current.

该系统起动时，转速外环饱和不起作用，电流内环起主要作用，调节起动电流保持最大值，使转速线性变化，迅速达到给定值；稳态运行时，转速负反馈外环起主要作用，使转速随转速给定电压的变化而变化，电流内环跟随转速外环调节电机的电枢电流以平衡负载电流。

In recent years, companies have participated in the transformation of old cities, Pingding County, Yangquan City, Xinquan Bridge, A Shengao Su, Pu-He high-speed, transport, wind speed, high Ningbo Ring, Annan high-speed, high-speed bearing Tang, Paul Fu-speed, Yangquan coal mining subsidence management of housing projects, Binh Dinh District, the national, provincial and municipal key projects, which has been repeatedly commended the local government and the owners of the award.

近年来公司相继参与了平定县旧城改造、阳泉市新泉大桥、阿深高速、濮鹤高速、运风高速、宁波绕城高速、安南高速、承唐高速、保阜高速、阳泉市采煤沉陷治理平定区住宅建设项目等国家、省、市重点工程的施工，多次受到当地政府和业主的表彰奖励。

Based on a data collecting system of moving and static test-bed about helicopter airscrew,the paper designed principal axis low speed control system ,namely designed electric control system, speed measuring system of it and researched a debugging shceme about low speed control system.

本文以"直升机旋翼动平衡试验台数据采集工程"为背景，设计了"直升机旋翼动平衡试验台数据采集系统"工程中的主轴低速控制系统，即对低速控制系统中的电控系统和测速系统进行了设计，并结合实际工程给出了系统的调试方案和最后的实验结果。

First,apply PLC regulate to speed to alternate current motive, the system adopted PANASONIC PLC, series of FP∑as core,control small-scale model VF0 frequency converter PWM fan-out of pulse,and control AC motion control system's speed , use the rotatory encoder of Omron formed the speed reactive circuit.

可编程控制器是一种数字运算操作的电子系统，专为在工业环境下应用而设计，它采用可编程存储器，用于其内部存储程序，执行逻辑运算，顺序控制，定时，计数与算数操作等面向用户的指令，并通过数字或模拟式输入/输出控制各种类型的机械或生产过程。

In the design of the road test, a reflectional infrared sensors is used to detect the black line on the road to judge the trolley's position; on trolley's speed controlling, the control system uses PWM technology to control the rotational speed of electric motors, and complete the speed real-time control to electric cars in d

在路面检测设计中，小车采用反射式红外传感器来检测其行驶路面上的黑线，以判断小车行驶的位置；在控制小车行驶速度上，系统利用PWM技术控制电动机的转速，通过程序完成对电动小汽车在不同路段的行驶速度实时控制；最后采用双电源供电，用以保证系统的运行更加稳定，可靠。

Speed and tension control of two-motor variable frequency speed-regulating system can be decoupled by the neural network inverse synchronous control method, and high performance control can be obtained by designing linear close-loop adjustors of speed and tension.

实验结果表明系统具有较好的动、静态性能和较强的抗负载扰动的能力，提出的神经网络逆同步控制方法为解决交流多电机系统解耦控制的难题提供了新思路。

The contents of this dissertation are involved in studies on quasi steady-state condition of a slow speed-varying rotor system, gain-scheduling control of a quasi steady-state rotor active balancing system, adaptive control of active balancing for a fast speed-varying rotor with actuator time delay and adaptive control of active balancing for a fast speed-varying rotor with actuator saturation. The rotors to be studied include a Jeffcott rotor, a Jeffcott rotor with anisotropic bearings, a flexible rotor with single collocated balancing plane (actuator plane and measuring plane are almost the same one) and a flexible rotor with multiple collocated balancing planes.

研究的内容涉及慢变速转子的准稳态条件、变速准稳态转子主动平衡系统的增益调度控制、带作动器时迟的快变速转子主动平衡系统的自适应控制与带作动器饱和的快变速转子主动平衡系统的自适应控制，转子类型包括Jeffcott转子、轴承各向异性的Jeffcott转子、单并置平衡平面(作动器和测量平面几乎在同一个平面)的柔性转子和多并置平衡平面的柔性转子。

The H∞ robust control problem is resolved with 2-Riccati algorithm, and the H∞ robust controller is used in the rotating speed control of wind turbine, which results in completely wind turbine speed control within frequency band of wind speed variation.

用2-Riccati算法对H∞控制器进行求解，将该控制器用于风车的转速控制中，最终实现在风速波动频率范围内的风车完全转速控制。

This paper aims at the design, implementation and evaluation of an industrial brushless servomotor drive. The proportional-plus-integral speed control with gains tuned by an extension of the frequency-zone method and anti-windup PI speed control based on self-conditioning techniques are studied. The parameters of speed performance criteria, control loop bandwidth, per normal inertia, and noise sensitivity are employed to evaluate the performance of the drive.

本文针对工业用无刷伺服马达驱动器进行设计与制作，延伸频率区域法分别设计比例积分控制之增益值，以自我条件技术完成比例积分速度控制之反卷起设计，并依据速度性能准则之参数，如控制回路频宽、惯量标么值、杂讯灵敏度等，进行驱动器之性能评估。

An instantaneous optimal semi-active control method is put forward. Combined sliding mode control with lyapunov's stability theory, the control weights matrix, which can minimize structural instantaneous energy, is designed. Simulation and shaking table test is conducted to validated the method's effectiveness. To solve combination explosion of controlled structural state encountered in high-rise building control, the semi-active control strategy, which can drive structural state point to reach the sliding mode switching band, is designed by using sliding mode control theory, and genetic algorithm is used to find the optimal semi-active switching to drive the structural state point to sliding mode switching band at prestissimo speed.

提出了一种瞬时最优半主动结构控制方法，利用滑模变结构控制理论和Lyapunov稳定性理论设计使结构瞬时能量最小的半主动控制权矩阵，仿真实例和振动台试验验证了本文所提方法的有效性和实用性；为解决在高层建筑半主动控制中半主动控制器状态组合爆炸的问题，利用滑模变结构控制理论设计在Lapunov稳定意义下使结构在运动状态空间中任一相点于以最快速率到达滑模切换带的半主动控制策略，并用遗传算法找出了最快到达滑模切换带的半主动控制切换组合。

But GST= 0.156, Nm=1. 588. As a result, the foundation of Youyongchi Avicennia marina population was the result of the migration of hypocotyles and human factors.

这项工作可以为海岸防护林中新引进种类的判定以及为研究种群建立者效应方法的确定提供科学依据。

The two-dimensional CDRC-ADI-FDTD update equations for collision unmagnetized plasma are induced. The unconditional stability of the CDRC-ADI-FDTD formulation for collision unmagnetized plasma is obtained by the examples.

推导了碰撞非磁化等离子体中的二维CDRC-ADI-FDTD迭代公式，并用算例验证了碰撞非磁化等离子体CDRC-ADI-FDTD算法也是无条件稳定的。