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1、单相全波可控整流电路,晶闸管主电路,电路结构特点,1,电阻性负载分析,2,电感性负载分析,3,电感性负载并接续流二极管分析,4,电路结构特点,VT2,它相当于两组半波电路的并联,但电源电压相位差180。,门极触发信号相位保持180相差。,t0t1区间,电阻性负载波形分析,t0t1区间,0,t,ud,t1,电阻性负载波形分析,t1t2区间,t2,电阻性负载波形分析,t1t2区间,VT1,VT2,TR,Rd,t2,+,-,0,电阻性负载波形分析,t2t3区间,t2,t3,电阻性负载波形分析,t2t3区间,t2,t3,Rd,电阻性负载波形分析,电阻性负载波形分析,t3t4区间,0,t,ud,t1,t
2、2,t3,t4,Rd,t3t4区间,VT1,VT2,0,t,ud,t1,t2,t3,t4,TR,Rd,+,-,0,电阻性负载波形分析,各电量的计算,Ud= 0.9u2(1+cos )/2 uTM =1.414u2 0 ,电感性负载波形分析,t1t2区间,0,t,ud,t1,t2,t3,电感性负载波形分析,t1t2区间,0,t,ud,t1,t2,t3,VT1,VT2,Ld,Rd,TR,+,-,0,电感性负载波形分析,t2t3区间,0,t,ud,t1,t2,t3,VT1,VT2,Ld,Rd,TR,+,-,0,电感性负载波形分析,t2t3区间,0,t,ud,t1,t2,t3,VT1,VT2,Ld,R
3、d,TR,+,-,0,t3t4区间,0,t,ud,t1,t2,t3,t4,Rd,Ld,电感性负载波形分析,t3t4区间,0,t,ud,t1,t2,t3,t4,VT1,VT2,Ld,Rd,TR,-,+,0,电感性负载波形分析,t0t1区间,0,t,ud,t1,t2,t3,t4,VT1,VT2,Ld,TR,+,-,0,电感性负载波形分析,t0t1区间,0,t,ud,t1,t2,t3,t4,VT1,VT2,Ld,Rd,TR,+,-,0,电感性负载波形分析,Ud = 0.9u2cos uTM =1.414u2 0 /2,各电量的计算,电感性负载并接续流二极管分析,0,t,ud,t1,t2,t3,t4,Ud = 0.9u2(1+cos )/2 uTM =1.414u2 0 ,各电量的计算,谢谢观赏,