直流斩波 meaning in English
dc chopping
Examples
- Dc chopping circuit
直流斩波电路 - The high frequency inverter power can invert 75 - 130 volt vibrating dc voltage which come from battery charge into 110 volt , 20khz ac voltage . the control of high frequency inverter power consists of two parts : chopper control and inverter control
给出了直流斩波电路及全桥逆变电路的工作原理，此高频逆变电源可将75 130v的蓄电池直流电压逆变为110v ， 20khz的交流电压。 - A design adding a dc chopper after the triphase rectification was given to reduce the peak of the pulse of voltage , aiming at the characteristics that the magnitude of the rated voltage of permanent magnet synchronous motor ( pmsm ) is far below that of the power supply , also the electric parameters of the devices were given
针对专用永磁同步电机额定电压大大低于电网电压这一特点，为降低电机上承受的峰值脉冲电压，设计了在三相整流之后增加一级直流斩波器并给出了相应的电气参数。 - （ 2 ） the major circuit has been established , composed of rectifier 、 buck - chopper 、 push - pull inverter and matching network , which realizes high - power supersonic ac output . to achieve maximal output power , the pulse frequency modulation ( pfm ) has been applied to auto - adjustment of output frequency , which corresponds to the load ' s resonant frequency
（ 2 ）建立了超声电源主电路，其中包括：整流、直流斩波、推挽逆变器和匹配网络等部分，实现了大功率超声频交流电的输出，输出频率的脉频调制（ pfm ）和输出功率的脉宽调制（ pwm ） 。 - The detecting techniques of harmful currents , the modulation methods of novel upfc and the balancing control of capacitors voltage on dc link are studied thoroughly . in order to be fit for three - phase four - wire system , the method of balancing control using chopper presented in literature [ 29 ] is mended
分析了零序和负序电流对新型upfc直流侧电容电压的不同影响，对文献[ 29 ]提出的传统upfc的直流侧各电容电压的均衡控制方法进行了仔细研究，提出了采用b型直流斩波器来控制新型upfc的直流侧电容电压的新方法。