摘要
对目前城市轨道交通中比较先进的24脉波整流供电系统结构原理进行分析,通过计算得出理想情况下移相变压器各绕组匝数与移相角度θ之间的关系.然后利用傅里叶变换推导出m脉波整流电路输出量的一般公式,通过将m脉波整流电路输出量的电压纹波因数γu进行对比,可知m越大时,γu越小,从而得出24脉波整流电路在抑制谐波方面的作用显著.
The basic principles and structure of the 24-pulse-wave rectifier power supply system are analysed in urban rail transit,and the relationship between the phase-shifting transformer and the phase-shifting angle is calculated.The fourier transform is used to deduce a general formula of output pulse,and the m-wave rectifier circuit output pulse is compared with the voltage ripple factor.The experiment result shows that when the m-wave is larger,the voltage ripple factor is smaller,which proves the significant role of the 24-pulse rectifier in suppressing harmonics.
出处
《大连交通大学学报》
CAS
2011年第3期76-79,共4页
Journal of Dalian Jiaotong University
关键词
24脉波整流
移相
纹波因数
24-pulse-wave rectifie
phase-shifting
ripple factor
