第11章 变压器与电动机

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2、17182FecosPUIRIP 1920211u2uLZ1i2i2223241u2uLZ1i2i0i20i 1u20u2e1e1e1N2N1u11d deNt 011d dieLt 22d deNt 1u1e1e1N2N1u11d deNt 111d dieLt 22d deNt 222 dieLdt 111m(sin t)ttddeNNdd 1cosmNt 1msin(t90 )E 1m144. 4NfE 111222mmEfN E 22msin( t 90 )eE 2m244. 4NfE sin,mt 281111111111jUR IEER IX IE 111114.44mUEUEfN

3、 1E1R1I1U1E+1112022UENKUEN 2m220224440Nf.EUU,I 2222222222jER IEUR IX IU2U 1u1e1e1N2N2222UZIZ 111 4 .44 mUEfN01mi N 1122mi Ni N 2i1u2e1i1e1N2N2u1122 i Ni N 所所以以1122I NI N 1122I NI N 12211ININK 110122i Ni Ni N 22i N102211NiNiNi 3222UZI 11UZI 22122212UKUUZKKZIIIK 2ZK Z 1U 2U 1I 2I Z1U 1I Z I E 12800108

4、LLNRKNR I E 1N2U 2I LR2N0LRR 2201208004.5 800800LLEPRWRR 0LRR 22012080.176 8008LLEPRWRR35%100%20220 UUUU22()Uf I 2212CuFePPPPPP 38N2N2N1N1NSUIUI N2N2N1N1N33SUIUI N1N1NSUI 21PP 222cosPU I 394041420nAmBmCmsinsin(120 )sin(120 )iItiItiIt mI43AXYCBZNSAiBiCimItBiAXBYCZAiCi44=180ot XBZ0nAYCA=120ot XYCBZ0nA

5、iBiCitmI=60ot AXYCBZ60 0nSN450n0nAiBiCimItAiCiBimIt4647482p AiBiCimIt4960t A0nAZXXCZCSN300SNBYYBAiBiCimItO0t 060( /min)fnrp 50060 /fnp （转转 分分）1500 /转转 分分3000 /转转 分分1000 /转转 分分 51：5200 100%nnsn 531sintm 1111cosmuN t 1111111dui ReeeNdt R1i1u1i2R2e1e 1e2e 2+-5411m11cos uN t222m4.44 Ef N 1m1m11m111111m2

6、4.442UN N fUEUf N R1i1u1i2R2e1e 1e2e 2+-0002106060nnnnnfppsfn2222222022220()EIRXSERSX 202122222SXLSfLfX 202122244. 444. 4SENSfNfEmm 222222222220cos()RRRXRSX R1i1u1i2R2e1e 1e2e 2+-56572cos Tm22cos TK I 5820222220()SEIRSX2222220cos() RRSX 111m4.44 Uf N22122220()sRTKURsX59T10sn0Tn060n0 TnNTnNNNNNN(kW)95502(r /min)60PPTnn （Nm）61maxT2max12012TKUXmaxNTT 1.8 2.8 6221 0 (1)nsII63stT22st122220() RTKURX6415001440 0.041500 s6566AZBYXCABCXYZ6711.2A/ 6.48