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- This paper describes the application of Variable Frequency Device in FCS. The hardware configurations and con-trol strategy configurations of FC$ and the principle of VFD are introduced. 论文叙述了变频调速技术在现场总线控制系统中的应用。介绍了该FCS的硬件配置、控制策略组态方案和采用变频调速技术的节能原理。
- Supporting hand-held devices, such as PDAs and radio frequency devices. 支持手持设备,例如pda和射频设备。
- Abstract: This paper describes the application of Variable Frequency Device in FCS. The hardware configurations and con-trol strategy configurations of FC$ and the principle of VFD are introduced. 文摘:论文叙述了变频调速技术在现场总线控制系统中的应用。介绍了该FCS的硬件配置、控制策略组态方案和采用变频调速技术的节能原理。
- Jiang Xia,Jiang Qirong,Yan Gangui,et al.Self-excitation of induction motor shunted with LC filter of high voltage variable voltage variable frequency device[J].AEPS,2003,27(4):45-49(in Chinese). [5]蒋霞;姜齐荣;严干贵;等.;高压变频调速中LC滤波电容与异步电机之间的自激[J]
- The machine uses core wire tension control device and advanced computer frequency devices that can be adjusted within the provisions of speed spindles. 有芯线张力控制机构,有电脑变频装置。
- The develop ment of novel single frequency devices shows a bright future for near infrared laser diodebased gas sensing. 新型单频器件发展表明近红外激光二极管气体传感具有广阔前景。
- More and more variable frequency devices (VFD) are being installed on the chilled water and hot water pumps on the TAMU campus. 建筑水环境攸关于建筑物内用水的来与去,其中给水系统的使用以舒适性(足量、足压、适温)及良好的水质为最重要的考量因素。
- high-volt AC VFD (variating frequency device) 高压交流变频调速器
- Innovation of Controlled Silicon Intermediate Frequency Device 可控硅中频装置更新改造
- He varied the transmission frequency. 他变换了无线电传送的频率。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位,等于每秒一周
- The Application of PLC and Variable Frequency Device on the Bridge Crane PLC和变频器在桥式起重机上的应用
- An electronic device that converts one frequency of a radio signal to another. 变频器将无线电讯号从一种频率转换成另一种频率的电子装置
- The Frequency Tripler is a key device of FFTS. 分频输电系统的关键设备是培频变压器。
- Fatal accidents have decreased in frequency over recent years. 近年来死亡事故发生的频率已经下降。
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- Accidents on that highway are happening with increasing frequency. 那条高速公路上车祸发生得越来越频繁。
- He tuned his radio to the police frequency. 他把无线电调到警方的频率。
- Energy saving improvement on motor fan by the application of varying frequency device 变频器在风机节能改造中的应用
- APPLICATION OF PROGRAMMABLE DIVIDING FREQUENCY DEVICE TO WAVEFORM GENERATOR BASED ON VHDL 基于VHDL的可编程分频器在波形发生器的应用