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 industrial frequency control technique lor power load control is introduced .
本文介绍了电力负荷的工频控制技术。
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。
Some are equipped with feeding frequency control can be arbitrarily adjust the speed of feeding.
送料部分均配有变频调速，可任意调节送料之速度。
A frequency control method for RSC converters was achieved based on the output voltage expression.
基于输出电压表达式，还提出谐振开关电容变换器的频率控制方案。
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 paper mainly introduces the frequency control technique and technical innovation for large-type roof fan.
简介了大型屋顶风机变频调速技术及技术创新性。
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。
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。
A slip frequency control system of asynchronous motor used DSP as control center is presented, which apply to the electric tourist car.
介绍一种以dsp为控制核心的异步电动机转差频率控制系统在电动游览车中的应用。
It has proven by practice that the two solutions both can implement Variable Frequency Control of ac Motor well, and have good applied cost.
实践证明，两种解决方案均能很好地实现交流电机的变频控制，具有良好的应用价值。
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；
ZVS conditions (developed in the paper) lead to an interesting way to control the converter, and a discrete variable frequency control is proposed.
ZVS工作条件产生了有利的变流器控制方法，并提出了一种离散变频控制方法。
When go to a new fly field, it is not only a courtesy but also a safety measure to register your frequency and follow the frequency control procedures.
当您去一个新的飞场的时候，主动注册您的频率遵守频管规程不只是一种礼貌，更是保障安全的必要做法。
This paper briefly introduces the basic idea of vector control and its application in asynchronous motor frequency control of motor speed is discussed.
简要介绍了矢量控制的基本设想，并就其在异步电动机变频调速中的应用展开讨论。
The energy optimization control of asynchronous machine often uses the permanent slip frequency control according to the electrical machinery static model.
感应电机能量优化控制常根据电机静态模型采用恒转差频率控制。
This paper discusses a minimum of parameters to determine the trajectory of a circular interpolation method and the method of frequency control stepper motor.
文中讨论了一种以最少参数确定一条圆弧轨迹的插补方法和步进电机变频调速的方法。
In the light of the pickup current of a submersible electric pump being too large when started at full pressure, a new variable frequency control system is developed.
针对电动潜油泵工频全压启动时存在启动电流过大等诸多问题，开发出新型电动潜油泵变频控制系统。
A new frequency control scheme using fuzzy feedforward compensation and fuzzy - PID for natural gas engine generating set was proposed and the controller was designed.
提出了天然气内燃发电机组频率采用模糊前馈补偿和模糊pid反馈协调控制的方法，并设计了控制器。
A new frequency control scheme using fuzzy feedforward compensation and fuzzy - PID for natural gas engine generating set was proposed and the controller was designed.
提出了天然气内燃发电机组频率采用模糊前馈补偿和模糊pid反馈协调控制的方法，并设计了控制器。
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