调速范围的英文

• range of speed regulation
• speed adjustable range

• 调速    speed governing; speed regul ...
• 范围    scope; limits; extent; bound ...
• 转速度换器的调速范围    speed changer governing range
• 变速范围    slewing range; speed range
• 超音速范围    supersonic envelope; supersonic range
• 低速范围    low-speed range
• 地速范围    ground-speed range
• 高速范围    high-speed range
• 极高速范围    hypervelocity range
• 禁速范围    barred-speed range
• 失速范围    stalled area
• 亚音速范围    subsonic envelope; subsonic range
• 轴转速范围    spindle speed range
• 转速范围    range of speeds of rotation; rpm range; speed range
• 变速比, 变速范围    variation ratio
• 等压高速范围    isobaric range
• 低超音速范围    low supersonic range
• 低跨音速范围    lower-transonic range
• 高超音速范围    hypersonic range; hypersonic sphere
• 禁用转速范围    barred speed range
• 无级变速范围    range of infinitely variable speeds
• 运行转速范围    operating rotational speed range
• 主轴转速范围    range of spindle speeds
• 超临界转速范围    berkritischer drehzahlbereich speed range above natural frequency
• 发动机转速范围    engine speed range

• This paper studies on used the ac servo system based on ti dsp ( lf2407a ) and the foc and digital signal processing thorem , achieves following results : algorithm . we employ svpwm ( space voltage pwm ) algorithm , improve the efficiency of the electric source , and decrease the harmonious elements . we build the mathematic model of the system and simulate it on matlab platform , dsigne segmented pid regulator to adapt variable speed and widen the speed range . measurement . the velocity and electric current measuring , we adopt multi - sampling - rate and digital filter principles . as more improvements we make , the whole system gets a good results . . pc control . the complete controlling system can be controlled remotely . so we develop the pc controlling program .
  采用磁场定向脉宽调制算法，提高了电源利用率，降低了逆变电压的谐波，改善了电机的运行特性，降低了对电网的污染；在matlab平台上建立了交流永磁同步伺服电机和电压空间矢量脉宽调制控制系统的数学模型，在仿真的基础上，对传统pid调节器进行了改进，提出转速调节器和电流调节器采用分段pid结构，根据给定转速所处的区间，自动选择相应pid调节器的参数，拓宽了调速范围，提高了控制精度。
• In view of this situation this article has conducted research to the design of metallurgy auxiliary biography with the frequency conversion table electrical machinery first multianalysis to the frequency changer and the frequency conversion table electrical machinery movement characteristic is carried out , the voltage waveform harmonious which the frequency changer outputs is big , attacks in a big way , and the voltage climbing rate reaches as high as 6600v / mu s which is 20 times ordinary sine alternating voltage , the rolling mill auxiliary biography table set the extremely strict request to the electrical machinery ; its movement frequency is very low , rate frequency in 8 - 20hz ; the velocity modulation scope is wide , the lowest movement frequency lowers to 1hz , and the starting number of times is quite frequently , each hour reaches as high as 600 - 800 time , the impact shoulders in a big way , the overload capacity request is high
  针对这一情况本文对冶金辅传用变频辊道电机的设计进行了系统研究。首先对变频器和变频辊道电机的运行特性进行详细分析,变频器输出的电压波形谐波大,冲击大,电压上升率高达6600v / s ,是普通正弦交流电压的20倍;轧机辅传辊道对电机提出了十分严格的要求:其运行频率很低,额定频率在8 - 20hz ;调速范围宽,最低运行频率低到0 . 5hz ,起动次数相当频繁,每小时高达600 - 800次,冲击负荷大,过载能力要求较高。