查询词典 synchronous motor

As the main conversional device of mechanical energy to electrical energy, the motor has mainly three types, such as,the DC motor, the synchronous motor, the asynchronous motor .

电动机作为机电能量转换的主要装置，其主要类型有直流电动机、异步电动机和同步电动机三种。

In recent years, our company develop and produce the electric vehicle motors, AC servo motor explosion-proof, wind generators, oil motor, blower and pump frequency conversion motor, gearless elevator traction machine, such as permanent magnet synchronous motor of new products by the user's welcome .

近年来，我公司研制生产了电动车电机、防爆交流伺服电机、风力发电机、油田用电机、风机与水泵变频电机、无齿轮电梯曳引机等永磁同步电机新产品，受到用户的欢迎。

According to the fundamental of vector control,a digital closed-loop control system of permanent magnet synchronous motor based on dsPIC30F6010 was designed and a model of permanent magnet synchronous motor in the estimation two phase rotating reference frame was introduced and an extended back electromotive force equation was deduced.

根据永磁同步电动机矢量控制的基本原理，设计了一种基于 dsPIC30F6010的无位置传感器永磁同步电动机控制系统，并介绍了在估算两相旋转坐标系下的PMSM模型，推导出了反电势方程的扩展形式。

The permanent magnet synchronous motor is decoupled into second-order linear speed subsystem and first-order linear flux subsystem. The aim space voltage vector is ascertained by combining sector judgment of stator flux with the practical system inputs after linearization and decoupling. The system is decoupled into two linear subsystems, flux and rotor speed, which realizes the completely dynamic decoupling for permanent magnet synchronous motor speed control system.

将永磁同步电机动态解耦成二阶线性转速子系统和一阶线性磁链子系统，结合磁链扇区判断方法和线性化解耦后的实际系统输入来确定目标空间电压矢量，实现了永磁同步电机调速系统的转速和磁链动态解耦控制。

First, the application and development of synchronous motor in incremental motion control are discoursed. The classification of electrical machines are discussed under space magnetomotive force. So a new research direction on stepping control of synchronous motor is introduced, and the study of this dissertation is significant.

首先，论述了在增量运动控制中同步电动机的应用与发展，在空间磁势下将电机进行了归类研究，从而引出了同步电动机步进控制这一新的研究方向以及本论文研究的必然性。

A model of self-controlled synchronous motor (including double armature winding synchronous motor) is developed which takes account of damper winding according to its actual structure. The damper winding is represented by two sets of loop on each axis based on multi-loop method and bar currents may be calculated.

本文首先建立了包括参数计算在内的自控式同步电动机（包括双电枢绕组自控式同步电动机）的数学模型，该模型采用多回路法处理阻尼绕组，便于计算阻尼条的电流，可以比较准确地分析阻尼绕组对电机运行性能的影响。

Submersible oil-pumping unit linear synchronous motor, as the name suggests is the linear synchronous motor mounted on the underground pumping unit.

潜油式直线同步电机抽油机，顾名思义就是直线同步电机装在井下的抽油机。

Based on the systematic analyses of the applications and developments of step motor, the driving technique of step motor are analyzed in this paper, and upon these statements, a mathematical model of VR step motor is built. With this model, the coil current of step motor with chopping driver and the non-loaded starting frequency are simulated for the base of designing of step motor servo system.

本文在系统分析了步进电机应用和发展的基础上，对步进电机的驱动技术作了详尽的论述，建立了三相反应式步进电动机的数学模型，并利用该模型对斩波驱动的步进电机绕组电流及空载运行的启动频率等进行了仿真，为步进电机驱动系统的设计提供了依据。

The dissertation theoretically analyses software direct compensating motor speed loss of open loop pump-control-motor speed governing system with inverter. The motor speed loss formula and compensating coefficient formula are given, and this provides the theoretic foundation for using software direct compensating method. The dissertation puts forward the control scheme of software direct compensating motor speed loss of open loop pump-control-motor speed governing system with inverter, and the method of "load sectionalization linear compensation".

具体来说，本文的主要贡献包括如下几个部分：(1)对软件直接补偿开环变频泵控马达调速系统的马达转速降落进行了理论分析，给出了马达转速降落公式和补偿系数公式，为软件直接补偿开环变频泵控马达调速系统的马达转速降落提供了理论依据；提出了变频泵控马达调速系统的负载补偿控制方法和&负载分段线性补偿&方法，由此提高了调速系统的速度刚性和调速精度。

The major findings are:⑴During the intelligence test for the three groups of students, for half of the students or most of the students their scores on the all-including scale, the language scale and the performance scale all increased to various degrees;⑵From the analysis of the relationship between intelligence and reaction time, it is found that the result of this study confirms the existing views that there is a negative correlation between intelligence and reaction time, and the negative correlation is more evident when it is choice reaction time;⑶Different motor skills have different influences upon children with lower intelligence. Though the difference is not large, the average increasing percentages in the sample T tests for the three groups before and after the experiment show that the effect of open motor skill is the best, that of the synthetic motor skill or the open-closed is the better, and that there isn't a marked change in the closed motor skill trainees;⑷While analyzing the result of the experiment, it is found that the scores on the performance scale are higher than the scores on the language scale, especially in the open motor skill group, which tells us that the intelligence improving effect of physical training is realized to a greater extent through increasing their performance abililty.

研究结果显示：⑴相对于实验前测试结果，三个实验组学生的智力水平在实验后测试中不论是在全量表得分还是在语言量表、操作量表得分方面均得到了不同程度的提高；⑵从智力与反应时的相关分析可看出，本研究结果进一步验证了前人观点，即智力与反应时有显著的负相关，特别是与选择反应时有很强的负相关性；⑶不同运动技能对智力落后学生智力影响不同，虽然实验后各组间没有显著性差异，但经各组实验前后配对样本T检验及实验前后各项分数均值提高百分率可看出，开放式运动技能组实验效果最好，综合运动技能组次之，闭锁式运动技能组实验前后在智力测验量表得分上无显著性变化；⑷各组实验前后的操作量表分比言语量表分提高幅度更大，开放式运动技能组表现得尤其显著，这表明了体育活动对改善智力落后学生的智力水平，很大程度上是通过提高他们的操作能力来实现的。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。