查询词典 motor control

This text has designed the hardware and software of the electric control system of computer test board. And choose the control units and design the parameter for it. Especially research the driving motor by frequency converter and mathematic model of the operated brake lever force.

本文对测试系统电气控制系统的硬件和软件进行了设计，并对控制元器件以及控制参数进行设计，特别对电机变频控制以及施加的握闸力进行参数设计控制。

Fuzzy control is applied to variable-frequency regulating speed of AC induction motor in this thesis, where one kind of fuzzy controller of speed is designed with Mamdani model. Then the slip frequency control system made up of fuzzy controller is simulated, the simulation results show that its performance is better than that of general PI controller.

论文将模糊控制技术应用于感应电机的变频调速，采用Mamdani模糊逻辑模型，设计了一种转速模糊控制器，并对基于模糊控制的感应电机转差频率控制系统进行了数字仿真，结果表明模糊控制的控制性能优于常规的PI调节器。

A: "Air Pollution Prevention Law" in addition to the above-mentioned pairs of air pollution control taken by some of the commonalities with the supervision and management measures, the fight against coal-burning pollution, vessel pollution prevention and control and prevention of motor vehicle exhaust, dust and odor pollution were made with a special chapter contains special provisions

答：&大气污染防治法&除了对空气的污染的监督管理措施，打击针对煤炭燃烧污染控制所采取的一些共性上述对，船舶污染防治预防和机动车辆废气，尘和恶臭污染是一个特别的章节提出了专门的规定

Two PI adjustors were applied for wire feeding velocity control, one performed motor armature voltage feedback, the other one executed arc voltage feedback to determine the given velocity.3、 Exchanging data of power source and process controller by adapting 20mA current loop by a serial communication interface, which satisfy real time control demand.

该控制器具有焊接参数预置、记忆、锁定、数显以及自动引弧、收弧等功能。 2、焊接电源采用三相半控桥晶闸管整流电路，用不同方法计算偏差进行多变量数字解耦PI调节获得恒流、恒压、陡降和缓降四种输出静特性。

The introductive robot arm of this text can output two lines pulses by the PLC, driving the horizontal stalk, and the perpendicular stalk to drive the electrical engineering actuator respectively, to control the robot arm precision of the horizontal stalk and perpendicular stalk at the fixed position, tiny move switch input the position signal to the PLC.The direct current motor drags along to begin the claw and bedrocks to revolve, the position signal from revolve the code dish and near to the switch feedback to host of PLC;The electromagnetism valve control the machine hand open and close, thus carry out the function of the machine hand precision work.

本文介绍的机械手是由PLC输出两路脉冲，分别驱动横轴、竖轴步进电机驱动器，控制机械手横轴和竖轴的精确定位，微动开关将位置信号传给PLC主机；直流电机拖动手爪和底盘旋转，位置信号由旋转码盘和接近开关反馈给PLC主机；电磁阀控制气开阀的开关来控制机械手手爪的张合，从而实现机械手精确运动的功能。

In response to the special requirements of the development program, one of the two off on the open-loop motor VVVF control, with two full-speed fan, that is, the temperature control to meet the requirements of different materials, while saving energy.

针对这一特殊要求制定方案，对其中两台对开电机进行开环变频调速控制，配合两台全速风机，即满足不同材料的温控要求，又能节约电能。

The principles of Indirect Stator-quantities Control is proposed in the paper. Based on predicting models of induction machine, the ISC control system is completed. The structure of induction motor dreive system is shown, and the experiment results are presented.

本文介绍了间接转矩控制的基本原理，分析了基于异步电动机预测模型的间接转矩控制系统的组成及实现方法，给出了ISC的控制算法和电机预测模型，以及该系统的实时控制实验结果。

In recent years, the county up and down firmly establish the "animal husbandry instability instability in the whole county, not the rich herders, the county is not rich" ideas, has always been to increase efficiency of agriculture and animal husbandry, farmers and herdsmen in rural incomes and maintain stability as the work of farmers and village enterprise, has invested 2,480 million yuan to build one or two bases and livestock disaster insurance camel, cashmere goats base, completed the demonstration county animal husbandry and the "three" of training works, the new on the restoration and protection of natural vegetation projects, ban works, the completion of 3 million mu of artificial grass, aqueduct built five more than eighty kilometers, 22 kilometers of flood control dams, the new hit 12 motor-pumped wells, construction of the drug bath, flood pool 20, the completion of fencing 41.7 million mu of grassland, built to high standards SHELTER 20, control the "three" of 57.7 million mu of grassland, improved herd face up to 82%, the proportion of school-age dams more than 56%.

近年来，全县上下牢固树立&牧业不稳，全县不稳，牧民不富，全县不富&的思想，始终把农牧业增效、农牧民增收和保持农村稳定作为农牧村工作的重点来抓，先后投资2480余万元，建成了一、二期防灾保畜基地和骆驼、绒山羊基地，完成了畜牧业示范县和&三化&治理工程，新上了天然植被恢复与保护工程、退牧还草工程，完成人工种草3万亩，建成引水渠5条80多公里，防洪堤坝22公里，新打机井12眼，修建药浴池、涝池20座，完成围栏封育草场41.7万亩，建高标准暖棚20座，治理&三化&草场57.7万亩，畜群改良面达82%，适龄母畜比例达到56%以上。

It shows that the system has merits of simple circuitry, convenient control, dynamic undee display for motor's speed and network control and so on.

最后通过该装置的开发和测试表明，本系统具有线路简单、控制方便、动态转速波形显示、网络控制等优点。

The ship electric propulsion system that we are going to discuss consists of the following parts: six-phase double Y winding shifted by 30°synchronous motor, diode clamped three-level inverter, fixed pitch propeller and control installment of electric propulsion systems based on air-gap-field orientation vector control.

本论文所研究的船舶电力推进系统各个组成部分分别是：双Y移30°六相电励磁同步电动机、二极管嵌位式三电平逆变器、定距螺旋桨船舶推进器和采用基于气隙磁场定向矢量控制策略的电力推进系统控制装置。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。