目录 1绪 论 ........................................................................................................................................................ 1 2 三相桥式全控整流电路主电路设计....................................................................................................... 1 2 .1 整流变压器参数计算 .................................................................................................................... 2 2 .1 .1 次级相电压 ......................................................................................................................... 2 2 .1 .2 初级相电流和次级相电流 ................................................................................................. 3 2 .1 .3 初级容量次级容量和平均计算容量(视在容量) .............................................................. 4 2 .2 晶闸管参数选择............................................................................................................................ 4 2 .2 .1 晶闸管额定电压的选择 ..................................................................................................... 5 2 .2 .2 晶闸管额定平均电流和电流有效值的选择 .................................................................... 5 2 .3 晶闸管的保护................................................................................................................................ 6 2 .3 .1 晶闸管的过电压保护 ......................................................................................................... 6 2 .3 .2 晶闸管的过电流保护 ....................................................................................................... 1 0 2 .3 .3 电流上升率、电压上升率的限制 ................................................................................... 1 2 3 谐波分析 ..............................................................................................................................................
