6脉冲电机变频
电机功率（kW20013275电机台数111电压等级（V）0.380.38功率因素电机效率线路电流（产品样本）（A）337.95226.53134.00线路Isc（kA）50H1313.51209.69125.90H534.3834.9130.65H7###############单台电机谐波电流计算380V电机正常运行基波电流总谐波电流1总谐波电流2总谐波电流35次谐波电流7次谐波电流11次谐波电流13次谐波电流（A）负荷率1.2时变化系数0.95电机基波电流（A）200kW######40.2940.0040.2485.3341.5720.4313.23132kW166.0040.9240.0040.8657.9528.4513.638.9075kW99.6736.3240.0036.2030.5514.388.375.38（%）叠加计算（%）软件计算（%）产品样本（A）（A）（A）（A）自计算自计算自计算自计算母线
各段母线（A）基波电流合值计算（A）软件（A）实际基波电流(软件/计算）（A）573.64580.20负荷率（A）0.951.2时变化系数H5100.39H7第一段母线732.89######（200kW＋2x132kW）第一段母线（2x200kW＋75kW）0.56
机变频器谐波电流计算
ATV61HC22N4-200kW 变频器的电流谐波水平（来自施耐德产品样本）
（%）H11H13H17H19H23H25H29H31H35H378.235.334.653.323.092.392.201.811.631.388.218.405.365.404.664.843.333.523.113.212.402.592.222.251.822.001.641.611.411.58H411.221.241.17H431.071.101.25表2国标谐波标准（A）变流装置的脉冲数高次谐波含62442824有率％出处高次谐波级次571113171923256##########4.503.001.501.250.750.75高次谐波含有率（％）122.001.504.503.000.200.150.750.75242.001.501.000.750.200.150.750.756##########4.502.901.501.000.900.80122.601.604.502.900.200.100.900.80日本电气协同研究第46卷第二号IEEE519-1981 Guide forReactive Compensation of Static Pow母线谐波电流计算
母线各次谐波电流（A）
H11H13H17H19H23H25H29H31H35H37H41H43表1样本THDi（%）###############H470.910.940.88H490.840.860.96表4
182.601.600.700.401.501.000.100.10242.601.600.700.400.201.000.900.80e for Harmonic Control andive Compensation of Static Power表3
谐波电流总畸变率（%）H47H49(软件计算结果)33.04总谐波电流IH （A）(软件计算结果)239.4
谐波电流计算
