regulating frequency

The voltage stabilizing means in the quench air fan frequency converter speed regulating control system were introduced in detail.

介绍了骤冷风机变频调速控制系统稳压的技改措施。

The Application of Frequency Conversion Regulating Technology for Mine Axial Flow Fan

变频调速技术在矿井轴流式通风机的应用

Frequency conversion air condition system characters continuous regulating refrigerant volume, Consequently air condition system can be optimized to run in various work condition, and season energy effect ratio ( SEER) is enhanced obviously, therefore its control method is a research hotspot in refrigeration field.

变频空调系统具有连续调节制冷剂流量的特性，从而使系统在各工况下均可优化运行，显著提高季节性能比，故其控制方法的研究一直是国内外制冷界研究的热点。

This paper discusses the slip frequency control of variable frequency regulating speed system, and analyses the shortage of this control way.

本丈对转差频率控制的变频调速系统进行讨论，分析这种控制方式所存在的不足；

Feasibility study of a change from slip regulating speed to frequency converted regulating speed

关于滑差调速改变频调速的可行性研究

The technological requirement and technical parameter of screwdown motor and AC-DC-frequency controlled regulating system are introduced.

介绍了压下电机的工艺要求、技术参数,及用于电机速度精确控制的交 - 直 - 交变频调速系统.

Stability of Frequency Regulating System for Hydropower Units in Grid-Connected Operation

水电机组并网运行频率调节系统的稳定性

Taking an actual project as the example, this paper introduces the energy saving effect of the regulating technique of fixed water flow and variable air quantity, analyses economic benefit and flexibility of frequency control and valveless thermoregulator of indoor fan-coil.

以一实际工程为例，介绍了定水流量变风量调节技术的节能效果，分析了变频调节和室内风机盘管的无阀控制温控器的经济效益和可行性。

In this paper, a heating boiler control system based on PLC and variable frequency speed-regulating technology is designed according to Variable Frequency Reconstruct Project of Yinchuan Stokehold sponsored by Lanzhou Railway Bureau.

本文结合兰州铁路局银川地区锅炉房变频改造工程项目，设计了一套基于PLC和变频调速技术的供暖锅炉控制系统。

Control strategy of SPWM variable frequency speed regulating based on AVR single-chip computer

基于AVR单片机的SPWM变频调速控制策略