二次谐波分量2单独作用时,由于v2=502smn(2ox+30)V 其相量为:2=50∠30°V 这时电容的容抗为:xc 2mC2×500×20×10650g 所以电阻支路、电容支路及总电流的二次谐波相量分别为: 50∠30° R2 URU还 0.5∠30°A 100 50∠30° =1∠120°A C2 150 2=i+(2=05230°+14120°=12∠934A二次谐波分量u2单独作用时,由于 u2 = 50 2 sin(2t + 30)V 其相量为: 这时电容的容抗为: 所以电阻支路、电容支路及总电流的二次谐波相量分别为: U 2 = 5030V = = = − 50 2 500 20 10 1 2 1 C2 6 C X 0.5 30 A 100 2 50 30 R2 = = = R U I 1 120 A j50 50 30 j C2 2 C2 = − = − = X U I I 2 = I R2 + I C2 = 0.530 +1120 =1.1293.4A