单极性SPWM逆变电路仿真分析一.电路原理图图7-4工作原理控制信号设置1V1和V2互补V1正半周导通V2负半周导通Scope2|=|ES1=3|【Q斧謁|OiB嗥勺uq1Timeoffset:ft2.V3和V4互补SPWM波调制波:正弦波50Hz寻SourceBlockParameters:Sin&WaveSineVaveOutputasineuraue:0(-t)=imp*Sin(Freq*t+Phase)斗BiasSinetypedeterminesthecoinputatiorial1echniq.ueused.Thparajnetersinthetwotypesarerelatedthrough:Samplesperperiod=S+pi/(Frequency*SampletzLine)Numberofoffsetsamples=Fhase*Sajnplesperperiod/(2+pi)Usethesample-bassd.sitetypeifrLum.eri