Variable frequency power, which has small size and light weight, played an important role in saving energy, frequency control and improving power quality.
变频电源自诞生以来，便以体积小、重量轻等特点，在节能、变频调速和改善电能质量方面起到了重要作用。
The frequency control of motor speed is used for alternating current motor of main winch on No1 BF charging system, so that it is possible to carry out control of skip moving speed.
安钢1号高炉主卷扬交流电机采用变频调速技术，实现料车运行调速控制。变频器运行一年多来，未发生过一次故障。
The practice showed that great technical and economic effects had been produced in energy-saving and environmental protection after using high voltage frequency control in mixer fan of steelworks.
实践证明，炼钢混铁炉风机电机应用高压变频控制后在节能、环保等方面取得了较好的技术与经济效果。
For welding thicker pieces, automatic frequency control should be adopted.
对于较厚的焊件，应进行频率自动控制。
A discrete frequency control method is proposed for thyristorized static switch.
介绍了用于感应电机起动的离散频率控制方法。
The invention relates to a variable frequency control method of an AC transducer.
本发明涉及一种交流变频器的变频控制方法。
It also gives energy consumption analysis caused by the variable frequency control method.
对变频控制进行了能耗分析。
There are many optional speed levels and frequency control lifting except the standard speed.
除了标准起升速度外，还有多种速度可供选择，也可选用变频控制起升。
Adopt variable frequency control, stepless speed regulation, the roller tilt Angle can be adjusted.
采用变频控制，无极调速，滚筒倾斜角可调节。
The hydraulic circuit of the whole vehicle is designed by using the variable frequency control mode.
采用变频阀控复合调速方式，设计了整车液压回路。
The article introduces a kind of dual threshold frequency control circuit for digital control device.
文章介绍了一种数控装置的双门槛频率控制电路。
Including: principle of the high voltage inverter, frequency control scheme of high-voltage inverter.
包括：高压变频器原理，高压变频器变频调速方案。
This machine consists of base, frequency control brake motor spindle shaft, pivoted link and barrel, etc.
该机由机座、变频制动电机主轴、回转连杆及筒体等部分组成。
At present very few meet the requirements of Coal Mine Safety flameproof frequency control system products.
目前还很少有符合煤矿安全要求的隔爆型变频调速系统的产品。
This study develops a prototype of three-level frequency control and carries out a large number of experiments.
本文研究开发了三电平变频调速样机并进行了大量实验。
The control system consists of fuzzy controller, blast and aeration system, frequency control equipment and DO tester.
整个控制系统由模糊控制器、鼓风曝气系统、频调速装置和溶解氧测试仪组成。
With fixed frequency control circuit, it provides with over voltage, over current, overheat and short circuit protection.
该系列电源适配器，采用固定频率控制电路，具备限流、限压、过温、短路全功能保护。
PCLINK control network, MCGS software, Siemens low voltage electric appliance and host frequency control, saving up to 30%.
PCLINK控制网络、MCGS软件、西门子低压电器，主机变频控制，省电达30%。
This paper advances some measures for frequency control system of rope-tracting rail vehicles based on PLC in Zhangcun Coalmine.
对漳村煤矿基于PLC控制的绳牵引卡轨车变频调速控制系统提出了若干抗干扰措施。
The simulator can be used in feasibility study for designing load frequency control system and simulating power system operation.
程序主要用于电网自动调频系统设计的可行性研究以及对电网运行的动态模拟。
Because power systems are complex and multi-variable, it is very difficult to realize automatic secondary load-frequency control.
电力系统一般都很复杂且变量又多，实现二阶负载—频率自动控制也相应变得很困难。
The frequency control principle is discussed, and the designing circuit and test result given, which prove that the solution works.
本文讲述了频率控制原理，给出了实现电路和测试数据，证明了此方法是可行的。
Now the novel linear motor of bidirectional pulse variable-frequency control is applied to drive the flow control pump successfully.
目前，设计的双向脉冲变频控制的直线电机已成功应用于计量泵的驱动器中。
Based on the above study, the author of this paper designed variable frequency control speed system in electric twin-pod propulsion.
基于以上各部分，作者设计出双吊舱变频调速试验系统。
In order to make the RF source and the waveguide have the same resonant frequency, the automatic frequency control (AFC) system is used.
为了使得射频源和波导管的频率保持一致，采用了自动频率控制系统(afc)。
The machine adopts microcomputer control, easy operation, reliable performance, frequency control, can be cut vertical and horizontal sides.
本机采用微电脑控制，操作方便，性能可靠，变频调速，可纵横双面分切。
From the concept of direct high-high type frequency control system, introduce the importance of high-voltage in this particular speed control system.
从直接高-高型变频调速系统的概念，引入高压变频器在这种特殊调速系统中的重要性。
The practice after the feeding pump of hard pitch controlled by belt changed into frequency control of speed in AISC Chemical General Plant is introduced.
介绍了鞍钢化工总厂硬质沥青加料泵皮带调速改为交流变频调速的实际应用过程。
The practice after the feeding pump of hard pitch controlled by belt changed into frequency control of speed in AISC Chemical General Plant is introduced.
介绍了鞍钢化工总厂硬质沥青加料泵皮带调速改为交流变频调速的实际应用过程。
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