Based on the static characteristics of induction motor, this paper analyzes the braking function of general voltage vector controlled frequency converter.
本文从感应电机的静态特性出发，分析了通用电压矢量控制变频调速器的制动功能。
It is suitable for control weak voltage current signal in the frequency converter control loop.
主要用于变频器控制回路中微弱电压、电流信号的控制。
The adopted control mode of previous common frequency converter is usually of open loop constant voltage ratio, which its control curve is not stable.
早期通用变频器大多为开环恒压比的控制方式，控制曲线不稳定。
It has been shown that the designed DC switching mode converter has a stable output voltage frequency, small ripple, high operating frequency and low power consumption.
结果表明，所设计的直流开关型变换器集成模块输出电压稳定、纹波小、工作频率，高、功耗低，且体积小。
A charge balanced voltage to frequency converter is jpresented in this paper, and the circuit design and the process technology are also described.
介绍了电荷平衡式电压频率转换器的电路设计与工艺制作，并给出了研究结果。
A method of the high voltage and high frequency parallel resonant converter with capacitive output filter which has the minimal peak input current is introduced.
建立了一种具有最小电流峰值的电容输出滤波高频高压并联谐振变流器分析设计方法。
This circuit has been applied in development of high voltage frequency converter successfully.
该电路已经在高压变频器的开发中得到应用。
The experimental results show that the probe has good frequency response characteristics which meet the requirement of measuring voltage distribution of thyristor in converter valve.
实验结果表明，这种探头有较好的频率响应特性，能满足换流阀晶闸管电位分布测量的需要。
The single AC power input voltage frequency, the internal AC to DC after; DC converter rectifier exchange conversion, self-produced - very stable, pure sine wave.
该电源输入单一交流电压和频率，内部经过交流对直流；直流对交流的变流整流转换后，自行产生-非常稳定纯净的正弦波。
In this paper, the principle and properties of power source high voltage frequency converter are introduced as well as its application in mixer fan of steelworks.
文章主要介绍了动力源高压变频器原理、性能及在炼钢混铁炉风机中的应用情况。
The insulation class F or class H . The insulation of open-loop U/f condition of . structure has the adaptability to high carrie frequency voltage supplied by frequency converter .
电动机的绝缘等级为F级或H级，绝缘结构具有对变频器输出高载波频率电压的适应能力。
The voltage converter works in PWM mode. Frequency-control speed regulation, DC voltage supply monitoring of the converter, synchronous motor power-angle close-loop control are combined.
控制策略为逆变器PWM调压、变频调速结合逆变器直流侧电压闭环、同步电动机功角闭环控制。
Because power supply's voltage and frequency in China are different from aircraft's, the above products would only be bought from abroad if there were not aircraft power converter.
由于我国使用的电压、频率规格不同，这些产品只能从国外购进，价格之高，供货周期长可想而知。
The article analyzes the application of high voltage frequency converter on the arc furnace dust removal fan in some steel-smelting factory.
分析了高压变频器在某炼钢厂电弧炉炼钢除尘风机中的应用。
High voltage frequency converter can deal with it. But it needs much space and costs a lot.
高压变频器能很好的完成大容量电机的起动，但是价格昂贵，占地面积大。
After the analyses of circuit theory of analogue voltage-to-frequency ratio converter, the design requirement of component parameters and the calculation method are presented.
分析了模拟电压一频率比变换电路原理，给出了元件参数的设计要求及其计算方法。
The principle of in frequency converter using large high-voltage power electronic device IGBT was discussed. And the cause of fault was analyzed as well as the lesson should be learned.
叙述了大功率高压电力电子器件IGBT变频传动装置整流器系统的原理，着重分析了故障原因及应吸取的教训。
Why the Voltage and Current of Frequency Converter Vary in Proportion?
为什么变频器的电压与电流成比例的改变?。
VFC?Voltage to Frequency Converter?
电压频率变换器?。
Siemens medium voltage frequency converter has a different design to that of Robicon, and main application areas are different, how can they be best integrated into each other?
但由于西门子大型传动的中压变频器与罗宾康产品属于不同类型的结构，且应用领域有所区分，您觉得两者的融合应采取怎么样的方式？
The invention relates to a pulse resistor for a frequency converter in the higher voltage and capacity range.
本发明涉及一种用于高压和大功率范围的换流器的脉冲电阻器。
The invention relates to a pulse resistor for a frequency converter in the higher voltage and capacity range.
本发明涉及一种用于高压和大功率范围的换流器的脉冲电阻器。
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