1)  variable frequency encoding
变频编码
2)  variable frequency
变频
1.
Study of application of variable frequency hydraulic straight-vibrating sieve;
变频液压直线振动筛的应用研究
2.
Energy saving analysis of the variable frequency circulating water pump in a hot water heating system;
热水供热系统变频循环水泵节能分析
3.
Brake test system incorporating virtual instrument and variable frequency technologies;
基于虚拟仪器和变频技术的制动器试验系统
3)  frequency conversion
变频
1.
Dyeing and printing machine synchronization system based on network and frequency conversion technologies;
基于网络和变频技术的印染机械同步系统
2.
Amelioration of frequency conversion drag system in entirely automatism flakeboard production line;
刨花板全自动生产线横锯推板采用变频交流拖动系统的改进
3.
The Application Analysis of Frequency Conversion Timing Technique in Power Plant;
火电厂变频调速技术的应用分析
4)  Variable-frequency
变频
1.
Application of DSP to Variable-frequency Control System of Boiler Feed Water;
DSP在锅炉给水变频控制系统中的应用
2.
Application of variable-frequency speed equipment on water supply in uptown;
变频供水设备在小区的应用
3.
The Study on the Control Device for Measuring the Transmission Line Parameters by Variable-frequency Electrical Measurement;
输电线路工频参数变频测量控制系统的研制
5)  frequency converter
变频
1.
Optimization of main transport pump and application of frequency converter in main transport pump is studied based on actual engineering.
对主输泵的组合配置和变频器在主输泵上的应用进行了研究,做好主输泵的优化配置和应用变频技术可显著提高管道运行的可靠、高效和经济性。
2.
The paper analyzed the application of constant pressure and frequency converter and varying-speed motor technology in the water injection development of middle-low permeability reservoir taking the water injection booster pump as an object of study.
以中低渗油藏注水开发中增压注水泵为研究对象,剖析了恒压变频和调速电机技术的应用效果。
3.
Based on the analysis of the slurry handling system in a chemical enterprise,two schemes of both high voltage inverter and high-low voltage frequency converter have been put forward.
变频调速技术已经成为现代电力传动技术的发展方向。
6)  Inverter
变频
1.
It included inverter and PLC ,the structure,working principle ,design of Fuzzy controller were included,it can settle the traditional PID control problems such as bad stability,difficult to modulate parameter.
它包括变频器和PLC,以及系统的组成、工作原理、模糊控制策略的设计思想,较好地解决了传统PID控制稳定性差、参数调整困难的问题,提高了供水质量,给工农业生产带来了可观的经济效益。
2.
In order to solving emulsification and carbonization of lubricating oil in operation of oil-injected screw compressor with inverter control,experimental study of compressor s cooling system is carried out.
为了解决变频喷油螺杆压缩机运行过程中润滑油的乳化和碳化现象,对压缩机的冷却系统进行了实验研究。
参考词条
补充资料：AB变频器在中嘉污水处理厂自动控制系统工程的应用
中嘉无污水处理厂的总处理量是30万吨/天，共分三期兴建，第一期工程处理量为10万吨/天。根据中山市环保局的进水及出水水质要求，该厂采用了先进的氧化沟工艺来达到去除有机物及脱磷脱氧的要求。系统的主要处理工艺流程分为预处理、氧化沟、终沉池和污泥脱水四个部分。采用基于PLC 5 控制器成本低廉的远程通信和控制系统；保证污水处理过程的质量，使得出水水质符合规定的标准；应用先进的PID算法和闭环控制策略以维持化学药品的最佳平衡和最大限度地降低成本高昂的中和药品用量；变频器和智能马达控制器不仅避免电机启动时对电网的冲击，而且起到均衡节能、起停控制和速度调节的作用；友好的用户界面（MMI）和完善的报表输出系统使得管理人员可以很方便地控制、监测系统和排除系统故障，并能及时地得到系统处理过程中的数据，掌握系统的运行趋势。
控制系统所使用的主要软件、硬件设备如下：
PLC A-B PLC 5/30 
现场图形终端 A-B PanelView 1400E 
变频器 A-B 1336 PLUS 
马达软启动器 A-B SMC PLUS 
上位计算机 DELL PII350 
界面平台软件 RSView32 
说明：补充资料仅用于学习参考，请勿用于其它任何用途。