voltage variable capacitor 电压可变电容器,可变电压电容器 variable frequency speed control 变频调速 variable frequency oscillator 变频振荡器 相似单词 variable n.【常用复数】可变的事物,可变的量 adj. 1.可变的,不定的 2.亮度,周期变化的 Variable n. 变量,可变物 a. 易变的;可变的;变量的;变异的...
城铁列车中VVVF(Variable Voltage Variable Frequency)电源,主要用于交流电动机调速。为保证电动机转速在较宽的范围内连续可调,要求逆变器输出___和___都有较宽的调节范围。为保证电动机气隙磁通恒定以防止铁心饱和,还必须使逆变器输出电压和频率___变化。逆变器需要有___的响应速度,以使电动机获得良好的调速性能。
网络变压变频;变频变压控制系统;变压变频变速 网络释义 1. 变压变频 车辆工程论文常用词汇1 -... ... 变流装置 converter变压变频Variable Voltage Variable Frequency变压器 Transformer ... www.waiwenfanyi.com|基于10个网页 2. 变频变压控制系统 ...0年前已进入交流变频第一代GTO-VVVF:闸流体变频变压控制系统...
变频器的工作原理变频器的主要任务就是把恒压恒频(constant voltage constant frequency,CVCF)的交流电转换为变压变频(variable voltage variable frequency,VVVF)的交流电,以满足交流电机变频调速的需要。从结构上分,变频器可以分为交-交变频器(亦称直接变频器)和交-直-交变频器(亦称间接变频器)。 相关知识点: 试题...
vvvf variable voltage variable frequencyVVVF变频调速拼音双语对照双语例句1The memory mode of switching angles in the memorize is determined according to the request of VVVF ( variable voltage variable frequency) and the variable voltage is made synchronous with the variable frequency by lock-on circuit...
M-driver 380V 480V 3 phase VFD inverter 4kw 5.5kw 7.5kw 11kw variable frequency drive $79.00-134.00 See product details Helpful (0) s s***h Nov 26, 2024 Specification:37kw I tried it and it was good because there was no electrical noise. ...
2) variable frequency transformer(VFT) 可变频变压器(VFT)3) variable voltage transformer 可变电压变压器4) variable frequence 可变频率 1. It is controlled by MC68HC908QT2 as one kind of cheap MCU, and drived by variable frequence technology. 介绍了一种低电压供电且以MC68HC908QT2廉价...
The signal from a voltage detector 6 is supplied to an automatic voltage regulator 8 together with a speed command signal 5, and controls the gate of the rectifier 1 via the limiter 12 and an automatic current regulator 11. The speed command signal 5 controls the gate of the inverter 3 ...
Mini Variable Voltage Variable Frequency VFD Drives US$70.00 200-1,999 Pieces US$63.00 2,000-4,999 Pieces US$60.00 5,000+ Pieces Product Details Customization: Available Application: High-performance Transducer, Three Phase Transducer, General Transducer, Single-phase Transducer Output ...
A kind of variable voltage variable frequency high-voltage power supply system was manufactured by using IPM(intelligent power module),SG3526(voltage pulse width modulated chip) and UC3846(current pulse width modulated chip) as main elements.The system consisted of single phase rectification wave filte...