新型环氧树脂绝缘浸渍胶（WSK）在微特电机上的应用

介绍了新型环氧树脂少溶剂快干绝缘浸渍胶的性能试验数据及基在微特电机上的应用及注意事项。     

变速铣削的试验研究

通过试验考证了变速铣削的减振效果和机床电机电流的波动幅度，试验结果表明，变速铣削同样具有明显的减振效果。机床电机电流虽有波动，但波动幅度不大，不会影响电机的正常使用，变速铣削具有良好的应用前景。     

软起动器在烧结机混料系统中的应用

软起动器以微处理器为核心，能够产生平滑的电压起动曲线，可任意设置稳定的起动电流，并具有多种保护。张钢24m^2烧结机混料系统应用软起动器后，交流电机起动平滑、无噪声，年节电5．6万kW．h，经济效益约2．4万元。     

Degradation of polyethylene terephthalate films in the presence of lubricants for HFC 134a: a critical issue for hermetic motor insulation systems

Earlier studies conducted in the use of sealed tubes with polyalkylene glycol lubricants and polyethylene terephthalete (PET) films revealed that the PET films exhibited embrittlement and (visual) degradation. This led to an investigation of PET embrittlement mechanisms with the new lubricants used with HFC 134a. The lubricants studied were three polypropylene glycols (the monol, the diol and the completely end-capped glycols), pentaerythritol ester and a blend of monol and ester. The effects of moisture content, temperature and lubricant structure were studied. All lubricants in this study were of viscosity grade ISO-32 (150 SUS). The results were compared to PET film embrittlement in the presence of CFC 12 and mineral oil. This study reconfirmed the earlier findings that the PET films must be dried to lower than 0.1 wt.% moisture content for use in hermetic systems. This paper discusses the effect of the moisture content of the lubricant and the effect of the lubricant structure on PET films. The dependence of the various mechanisms on temperature is shown. Esters and end-capped polyalkylene glycols are recommended for use with HFC 134a.     

9200kW同步电动机全压异步启动及其励磁装置

从结构性能、直接启动、励磁装置等方面全面介绍了大型同步电动机全压异步启动的方法。     

Continuous formation of slurry ice by cooling water–oil emulsion in a tube

Water-silicone oil emulsion with an additive, (C₂H₅O)₃SiC₃H₆NH₂, was examined as a heat storage material. A spiral tube used as a heat exchanger was immersed in a low temperature bath and the emulsion was circulated in the tube to make ice continuously. Ice was separated from the ice–liquid suspension in an outlet tank. The amount of formed ice, the temperatures of the inlet and the outlet of the heat exchanger, and the temperatures in the tube wall were measured and the overall heat transfer coefficient and the heat flux through the tube were calculated. Experiments were carried out, varying the flow rate, the temperature of cooling brine, and the thickness of tube wall. The condition under which slurry ice was formed continuously without adhesion of ice to the cooling wall was clarified. Though decrease in the thermal resistance of the tube increased the rate of ice formation or raised the brine temperature, it narrowed the range of the flow rate and of the brine temperature in which slurry ice was formed continuously.     

单片机在监控同步电动机运行功率因数中的应用

介绍如何利用单片机自动控制同步电动机运行时的功率因数。     

高炉鼓风机就地扩容改造方案及经济效益

介绍了利用高炉鼓风机基础实施不易地扩容改造的设计工艺方法，该方法不仅降低了设计、施工、安装费用，而且缩短了施工周期，降低了固定资产投资。     

Sensorless control of synchronous reluctance motors using on‐line parameter identification method not affected by position estimation accuracy

This paper presents a novel on‐line parameter identification method for sensorless control of Synchronous Reluctance Motors (SynRMs). Although conventional sensorless control methods based on mathematical models usually need some complex measurements of motor parameters in advance, the proposed identification method does not require them and can be realized on‐line. The proposed method identifies motor parameters under sensorless control, so rotor position and velocity cannot be used to identify these parameters. However, the proposed method does not need rotor position and velocity, and identified parameters are not affected by these estimation errors. The sensorless control using identified motor parameters is realized, and the effectiveness of the proposed method is verified by experimental results. © 2006 Wiley Periodicals, Inc. Electr Eng Jpn, 155(3): 62–69, 2006; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.20258     

盘式永磁无刷电动机设计中的一些问题

介绍了盘式永磁无刷电动机的原理和结构，探讨了其设计特点，解决了磁路分析计算和电机主要尺寸确定以及磁极形状选择的问题。