The frequency inverters has a function of variable voltage and variable frequency.

频率逆变器具有变压、变频功能.

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Variable frequency adjusting technology is a high energy saving technology.

变频调速技术是一项高效节能技术.

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Variable Frequency Speed Controlling System of Elevator by Microcomputer.

微机控制交流变频调速电梯控制系统.

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Variable frequency charging technology, quick charging speed , step - less voltage regulation.

变频充电技术, 充电速度快, 无级调压.

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Using variable frequency power, run more smoothly.

采用变频调速动力, 运行更平稳.

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This operation mode runs at a variable frequency.

这种运行模式工作在可变的频率上.

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Variable - frequency regulating speed technology has a bright future for the development and application.

变频调速技术有着很好的发展及应用前景.

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Using linear control theory formed a high - speed electric spindle speed sensorless vector variable frequency control methods.

利用线性控制理论组成了 高速 电主轴无速度传感器矢量变频控制方法.

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A 0～1 kHz AC variable frequency SVPWM inverter based on TMS 320 LF 2407 A using these techniques was made.

该样机采用TMS320LF2407A构成的最小控制系统,可输出0～1kHz连续可调的三相交流电.

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Variable - frequency adjustable - speed has been one of the main methods for adjusting the speed of induction motor.

变频调速已成为异步电动机实现转速调节的主要方法之一.

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Variable frequency - speed system of water for high building using PLC control was designed by - channel integral circuit.

应用电子技术按设定频率上、下限实现自动转换的双通道积分电路,并按此设计PLC控制 的变频调速高楼供水系统.

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However , the keystone of this method is to develop variable frequency power supply of high quality.

研制高性能的异步电动机变频电源,是交流调速的关键所在.

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Field data show, by applying the variable - frequency speed regulating technique, remarkable financial profit has been obtained.

具体应用后的节电数据表明, 变频调速技术在油田的推广应用已取得了很大经济效益.

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This can offer certain reference to engineering design of low - voltage large - power variable - frequency motor .

这对低压大功率 变频电机 的工程设计具有一定的参考价值.

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Enabling devices to running on rating rotate speed was attained through PLC variable frequency speed regulation.

通过PLC变频调速使电主轴运行到额定转速.

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