单相电动机

According to Bessel function and Fourier series theory, generation, magnitude and distribution of voltage harmonic generated by single-phase two-level SPWM inverter and three-phase SPWM inverter are analyzed and calculated particularity and concretely in allusion to inverter-motor system.

然后针对逆变器-电动机系统，利用贝塞尔函数和傅里叶级数理论，分别对单相二阶SPWM逆变器和三相SPWM逆变器的输出电压谐波的产生、大小和分布进行了细致而具体的分析和计算。

The three-rotor single phase variable voltage and speed motor possess the advantages of simple control, low price, and a wide range of variable speed, particularly good condition for heat scatter in lower speed running.

三转子单相调压调速电动机具有控制简单、价格低廉、调速范围宽等优点，尤其在低速运行下有较好的散热条件。

This cycloconverter uses few components and the control strategy is simple, only square wave of control is used.

该方法是在电动机转子绕组上串联一电压源，它采用单相至三相交交变频实现。

Pumps and pump (using the single-phase squirrel-cage induction motor) require a minimum level of energy efficiency and maximum energy consumption standards and testing methods qualified.

水泵和电泵（使用单相鼠笼感应电动机）规定了最低能效水平和最高能耗水平及合格检验方法。

A single –phase resistance starting capacitance running induction-motor is designed according to market requirement in this paper.

根据市场需求设计出满足用户使用要求的单相电阻启动—电容运转感应电动机。

The results of simulation show that three-winding single-phase capacitance motors with wye-connected drive ventilated machine load can proceed to AC braking to realize fast stopping. The capacitance number of changes can regulate system braking stopping time. When capacitance is certain, can establish the resistance to limit the electric current and electromagnetical torque in stator circuit during the braking process, regulating braking stopping time.

仿真结果表明，Y接法的三绕组单相电容电动机带通风机负载时可以进行交流制动实现快速停车；通过改变电容的数值可以调节制动停车的时间；当电容一定时，可以在定子电路中串联电阻来限制制动过程中的电流和电磁转矩，调节制动停车的时间。

Calculations are done through an example of simulation of the operation process of single-phase capacitor induction motor under the stator winding open-circuit fault , and the simulation results are analyzed.

通过实例对单相电容感应电动机的定子绕组断路故障运行过程进行仿真计算，并对仿真结果进行分析

The simulation model is applied to imitate transient operation characteristics of start-up process and suddenly dropping of supplied voltage to the signal-phase capacitor induction motor through a real example.

通过实例对单相电容感应电动机的起动过程和电源电压骤降瞬态特性进行模拟计算，对模拟结果进行分析，以帮助学生加深对理论的理解和认识。

It introduces programming ideas and application analysis of single phase capacitor functioning asynchronous motor design, containing: computer auxiliary design and analysis, digital process of curves and charts, total program flow chart, subprogram performance and key technology realization.

本文来源是宁波君禾泵业有限公司的水泵电动机设计软件开发项目，介绍基于VC++的单相电容运转异步电动机设计程序编制思想和应用研究，包括：计算机辅助设计分析、曲线和图表的数学处理、流程图、子程序功能和关键技术实现。

The company has over 20 series and over 300 specifications of products including 3-phase asynchronous motor, 1-phase asynchronous motor, grinding wheel machine, grinding plate machine, wire saw, tape saw, woodworking machine, etc.

主要生产三相异步电动机、单相异步电动机以及砂轮机、砂盘机、线锯机、带锯机、木工车等20多个系列、300多个规格的电动工具产品，年生产能力100万台，出口创汇2000万美元，是全国重点出口骨干企业。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。