,.第一章直流電機(jī)原理P411－3解：INP1410360.87(A)230NNPP1416.37(Kw)N1N0.855P411－4解：PUI110131430(W)1NNP1.110376.92%pPW)NNP14301N1P421－21解：IfUN2301.53()R150AfIII69.61.5371.13(A)aNfEUIR23071.130.128239.1(V)aNaapI2R71.1320.128647.6(W)PEI239.171.1317007(W)cuaaMaaPP16103N18713.5(W)1N0.855P421－29解：III40.60.68339.92(A)aNfNEUIR22039.920.213211.5(V)aNaaPEI211.539.928443.1(W)pI2R39.9220.213339.4(W)MaacuaapIU2200.683150.26(W)PUI22040.68932(W)ffNN1NNP7.510383.97%PN89321pPP8443.17.5103943.1(W)oMNP8443.1/1000TN9550nM9550300026.88(Nm)NT9550P95507.523.88(Nm)N2Nn3000NTTT26.8823.883(Nm)o N 2N,.或者T9550o9550943.1/10003(Nm)Pon3000NP421－30解：INP27000245.5(A)UN110NIII245.55250.5(A)aNNfNCUIR110250.50.020.1NnaNaeN1150NnUIR110250.50.021050rpmNCaNa0.1eN或者：EUIR110250.50.02115(V)aNNaNaEUIR110250.50.02105(V)aNaNaEEnEn10511501050rpmaNaaNNaNP421－31解：ECnnnIIaNeNNNNaaNEEUIR11013197(V)aaNNNaUEIR9713184(V)aNaP421－32解：III2555250(A)aNNfNCUIR4402500.0780.841NaNa500eNnNCeC30C9.550.8418.032C30TNeNT（1）T9550N95501833.6(Nm)P962Nn500N（2）TCI8.0322502008(Nm)NTNaN（3）TTT20081833.6174.4(Nm)oN2N（4）nUN440523rpmoC0.841e N,.(5)n'NaT523521rpmUR0.078174.4oCCC2o0.8418.032eNeTN或者：o174.421.71()ITAaoC8.032TNn'UIR44021.710.078521rpmNaoa0.841oCeNP42 1－33解：PU I 22081.717974(W)感謝閱讀NNP179740.8515278(W)精品文檔放心下載1NUN2202.48(A)fNR88.8感謝閱讀fI I I 81.72.4879.22(A)謝謝閱讀aN N fNp I2R79.2220.1627.6(W)精品文檔放心下載cu aN aI2R2.48288.8546(W)謝謝閱讀f fN fpPP17974152782696(W)謝謝閱讀1 Nppppp2696627.65461522(W)mFecufPPpp15278152216800(W)MNmFeP421－34解：（1）T9550N9550955(Nm)P752NnN750（2）III1914187(A)aNNfNEUIR4401870.082424.7(V)aNNaNaPEI424.718779419(W)MaNaNT9550P955079.4191011.3(Nm)M750Nn（3）NaN424.70.566CeENn750N,.nUN440777.4rpmoC0.566eN（4）TTT1011.395556.3(Nm)oN2NIaoTT56.310.42(A)ooTNeNn'UIR44010.420.082776rpmNaoa0.566oCeNP42 1－35解：I

I

I

912.5

88.5(A)aN

N

fNCUIR22088.50.0740.142NaNa1500eNnNUIR220500.074nNaa1523rpmC0.142eN第三章直流電動(dòng)機(jī)的電力拖動(dòng)P105 3－28解：（1）估算：RNNN0.038()1UIP103122030560103a2I223052NCUIR2203050.0380.2084NaNa1000eNnNnUN2201055.7rpmoC0.2084eNT9.55CI9.550.2084305607(Nm)NeNaN過（no=1056rpm，T=0），（nN=1000rpmTN=607N.m）兩點(diǎn)，可畫出固有機(jī)械特性。（2）T=0.75TN時(shí)，I0.75I：aaNnUIR2200.753050.0381014rpmNaaC0.2084eN或者：UNaT2200.0380.75607rpmnR1014CCC20.20849.550.20842eNeTN,.（3）IUNCeNn2200.20841100243.2(A)感謝閱讀R 0.038aP105 3－29 解：UN2200.72NI305謝謝閱讀N（1）nn0.5RT0.50.72N1055.7607529rpmRN09.55(C)2N9.55(0.2084)2eN過（n，0），（529，607）兩點(diǎn)畫直線。0（2）nn2RT20.72N1055.76071052rpmRN09.55(C)2N9.55(0.2084)2eN過（n，0），（–1052，607）兩點(diǎn)畫直線。0或：nNNN1052rpmU2RI22020.72305RNC0.2084eN（3）n0.5UN0.5n0.51055.7528rpm0C0eNnnR0.038aT528607472rpmVN09.55(C)2N9.55(0.2084)2eN過（n，0），（472，607）兩點(diǎn)畫直線。0（4）nUn1055.7N02111.3rpm00.5C0.50.5eNnnR0.038aT2111.36071889rpmN09.55(0.5C)2N9.55(0.50.2084)2e N過（n，0），（1889，607）兩點(diǎn)畫直線。感謝閱讀0P105 3－30 解：RUN1100.65()st3I285.21R30.651.73st3R0.129aII285.2100.2(A)1.1I93.72(A)121.7N,.符合要求。R1.70.1290.219()精品文檔放心下載ST1 aR1.70.2190.372()謝謝閱讀ST2 ST1(1)R(1.71)0.1290.091()精品文檔放心下載st1 ar1.70.0910.153()謝謝閱讀st2 st1r1.70.1530.26()謝謝閱讀st3 st2P105 3－31 解：（1）CUNaNa220410.3760.136IReNn1500N降壓瞬間，轉(zhuǎn)速不變，有：nnNIUCn1800.136150063.83(A)eNNaR0.376aT9.55CI9.550.136(63.83)82.9(Nm)eNa（2）nUIaNRa180410.3761210rpmC0.136eNP106 3－32解：QC9.55CTCI9.55CITeTaeanURTUR9.55CICNaNa)2CC2N0.8C9.55(0.8CeNaNeeTeNeNURIaN2200.37641NaeNeN或者：TCITCITaNTNaNIaIaNIaN4151.25(A)NNNnUIR22051.250.3761845rpmNaaC0.80.136en1845rpmn1500rpm,I51.25AI41ANaN所以，電動(dòng)機(jī)不能長(zhǎng)期運(yùn)行。,.P1063－33解：（1）CNaNa22068.70.2240.1364UIReNn1500NnUN2201613rpmoC0.1364e Nn(1)1613(10.3)1129rpm謝謝閱讀min o（2）Dnmax15001.33n1129minminR2200.136411290.2240.737（3）RUNCeNncIa68.7N（4）PUI22068.715114(W)15.114kW1NN忽略To，TN=T2N，T9550P13N955082.77(Nm)2Nn1500N因?yàn)轭~定負(fù)載不變，有：PTn82.7711292Nmin9.785(kW)295509550I2R68.720.7373478(W)感謝閱讀cuRc aN cP106 3－34 解：（1）nnn16131500113rpmNoNnnN113376.7rpmomin0.3maxnnn376.7113263.7rpmminominN（2）nmax15005.69Dnmin263.7（3）UCn376.70.136451.4(V)mineNomin（4）PUI51.468.73531.2(W)1minN忽略To，則有：TT82.77Nm2NNPTn82.77263.72.286(kW)2Nmin295509550,.P1063－35解：CUIR440760.3760.411NaNa1000eNnNnUN4401070.6rpmoC0.411eN（1）低速時(shí)采用降壓調(diào)速：nnn1070.6100070.6rpm精品文檔放心下載N o NnN70.60.28maxn250minn n n25070.6179.4rpm精品文檔放心下載min omin N（2）高速時(shí)采用弱磁調(diào)速，U=UN不變，允許最高轉(zhuǎn)速時(shí)Ia=感謝閱讀INCnC1070.60.4110.2935eo1500CneeNomaxTCI9.55CI9.550.293576213(Nm)TaeaP29nmax9550TN95502131300rpmn1300minP1063－36解：CUIR11035.20.350.13NaNaeNn750NECnUIR11035.20.3597.68(V)aNeNNNaNa（1）RUEaNR097.680.351.0375()cIa235.2amax（2）RUEaNR11097.680.352.6()cIa235.2max（3）能耗制動(dòng)時(shí)：eN00IanUCnRRRRa c a c,.TC

I

0T N an反接制動(dòng)時(shí)：UCn1100IafeN2.9537.29(A)RRacTCI9.550.13(37.29)46.3(Nm)TNaf（4）TTII35.2ANaNRUCeNnR00.13(500)0.351.5()cIa35.2aP1063－37解：∵他勵(lì)機(jī)TL=TN，∴Ia=IN=68.7An=0，Ea=0RUEaR22000.1953cIa68.7aP106 3－38 解：采用電動(dòng)勢(shì)反接制動(dòng)：Q

T

T

I

I

76AL

N

aN

NCUIR440760.3770.411NaNa1000eNnNRUCn4400.411(500)NeNR0.3778.12cIa76aN若采用能耗制動(dòng)：RUCeNnR00.411(500)0.3772.33cIa76a能耗瞬間電流：I'UCn00.4111000151.83(A)eNN0.3772.33aRRac1.8I1.876136.8(A)感謝閱讀amax NI'I不能采用能耗制動(dòng)，只能采用電勢(shì)反接制動(dòng)。謝謝閱讀amaxP106 3－39 解：因?yàn)橄缕聲r(shí)TL2與n正方向相同，故為負(fù)；TL1與n正方向相反，故為正，所以：謝謝閱讀,.TTT 0.8T1.2T0.4T感謝閱讀L L1 L2 N N NI0.4I 0.47630.4(A)謝謝閱讀a N此時(shí)電機(jī)工作在正向回饋制動(dòng)狀態(tài)，不串電樞電阻時(shí)：nUIR440(30.4)0.3771098rpmNaa0.411CN0.5Ω電阻時(shí)：nUI(RR)440(30.4)(0.3770.5)1135rpmNaac0.411CeNP1063-40解：UIR440600.377（1）nCa0.4111125.6(r/min)aeNTCI9.55CI9.550.41160235.5(Nm)TNaeNaPUI4406026400(W)精品文檔放心下載1 a（2）RUNCeNnR4400.411(850)0.37712.78()cIa60aPUI4406026400(W)NaI2R60212.7846008(W)感謝閱讀cuc a c（3）RUCnR00.411(300)NeN0.3771.678()cIa60aI2R6021.6786040.8(W)精品文檔放心下載cuc a cP107 3-41 解：（1）降壓瞬間，n來(lái)不及改變，Ea不變EU IR4400.8I 0.377417(V)感謝閱讀a N a a NI'UEa40041745(A)aR0.377aTCI'9.55CI'9.550.411(45)176.63(Nm)TNaeNa電動(dòng)機(jī)從電動(dòng)→正向回饋制動(dòng)→正向電動(dòng)。,.（2）nUIR4000.8760.377917.5rpmNaaC0.411eNP1073-42解：（1）EUIR22022.30.91199.7(V)aNNaNaIaUE220199.7'aNacCeNE199.70.1997aNNT'CI'9.55CI'9.550.1997(42.35)80.77(Nm)TNaeNa（2）n=0時(shí)，Ea=0，有：IaUE220022.2(A)''aacT''CI''9.55CI''9.550.1997(22.2)42.34(Nm)TNaeNa電動(dòng)機(jī)電磁轉(zhuǎn)矩T“<0，位能轉(zhuǎn)矩TL>0，二者方向一致，均為拖動(dòng)轉(zhuǎn)矩，在|T”|+TL作用下，精品文檔放心下載電機(jī)反向起動(dòng)，進(jìn)入反向電動(dòng)狀態(tài)，最后穩(wěn)態(tài)運(yùn)行在反向回饋制動(dòng)狀態(tài)，以很高的速度下放重物。感謝閱讀第四章變壓器P1414-12解：ZmIUZmIIU1N1NoIoIII2IoI oIIZmIUUZZmII2ZmI1N1NmIIoIoII順極性串聯(lián)時(shí)，IO一樣，忽略漏阻抗壓降，有：UI(Z Z )I(Z 2Z)3IZ謝謝閱讀1 o mI mII o mI mI o mI即有：IoZmI113UEIZ1U440147(V)1IomI313EIZ2U4402293(V)1IIomII313E147U2Ik1I273(V),.U2IIE293147(V)1II由此可見，空載電壓不相等。P141 4-13解：U4.44fN220V220UU21oo4.44fN11N2203kN11102N12N2N1N22N12順串時(shí)：UUU4.44fN'4.44fN'34.44fN'330VUu2U1U2u1u21o2o21o1'220o4.44fNo1IoN13N1IoIo2因?yàn)榇磐ú蛔儯源艅?shì)不變，23I'''逆聯(lián)時(shí)：UUU4.44fN''4.44fN''14.44fN''110VUuU1U2u1u21o2o21o12''2204.44fNoo1IoN11N1IoIo2Io因?yàn)榇磐ú蛔儯源艅?shì)不變，2''''''P1414–18解：UU1N010.3826.3NZ'U2N3809.62()精品文檔放心下載m I 39.5or'p1100o0.705()mI239.52oZ k2Z'26.329.626654()精品文檔放心下載m mk2r'26.320.705487.6()謝謝閱讀m mx Z2r2 66542487.626636()感謝閱讀m m mUk45022.5()kI20精品文檔放心下載k,.rpk410010.25()kI2202kX Z2r2 22.5210.25220()精品文檔放心下載k k k234.57510.2512.2()k75oC234.525謝謝閱讀Zr2X212.2220223.4()k75oCk750kP1414–20解：（1）U230kU1N11522Nrrrrk2r0.3220.050.5()k1212xxxxk2x0.8220.11.2()k1212Zr2X20.521.221.3()kkk（2）rrrr/kr0.3/20.050.125()22k1212xxxx/k2x0.8/220.10.3()k1212Zr2X20.12520.320.325()kkk（3）ISN310313.044(A)ISN310326.09(A)1NU2302NU1151N2NZU1N23017.63()ZU2N1154.41()1NI13.0442NI26.091N2Nr*r0.5X*X1.2k0.028k0.068kZ17.63kZ17.631N1NZkZ1.30.074*k1Nr*r0.125X*X0.3k0.028r*k0.068X*kZ4.41kkZ4.41k2N2NZkZ0.325Z0.074Zk**N(4)UIZ13.0441.316.957(V)UUkN16.9570.074ZkN1NkkNU230k1N,.（5）滿載時(shí)β=1cos1時(shí)，sin0：2 2U%(r*cosx*sin)1(0.028100.0282.8%感謝閱讀k2k2cos0.8落后時(shí)，sin0.6：22U%(r*cosx*sin)1(0.0280.80.0680.60.06326.32%k2k2cos0.8超前時(shí)，sin0.6：22U%(r*cosx*sin)1(0.0280.80.0680.60.01841.84%k2k2P1414–21解：Y,y結(jié)：kU10/3251N（1）noU0.4/32N空載試驗(yàn)：Z'U2N/3400/33.849()mI60or'p3800o3.519()m3I23602oZ k2Z'2405.63() rk2r'219.91()精品文檔放心下載m m m mxZ2r22395.55()ISN75043.3(A)mmm1N3U3101NZU1N/3440/35.867()rpk109001.938()kI43.3k3I2343.321k1kXZ2r25.86721.93825.538()r234.5751.9382.357()kkkk75oC234.520Zr2X22.35725.53826.02()k75oCk750k3I2r343.322.35713257(w)13.26(kw)精品文檔放心下載kN1Nk750rr'1r12.3571.179xx'15.5382.769()122k7502122（2）ZU10103/31N43.3133.34()1NI1Nr*r2.3570.0177X*Xk5.5380.0415k750k750Z133.34kZ133.341N 1N,.Zk750Z6.020.045*k7501Na）cos0.80.62滯后時(shí)，2：U(r*cosx*sin)1(0.01770.80.04150.6)0.03913.91%k7502k2Scos17500.8N2p97.24%Scos2p17500.81213.263.8N2kNob）cos102時(shí)，2：Ur*cos10.017710.01771.77%k7502Scos17501N2p97.78%Scos2p175011213.263.8N2kNoc）cos0.80.62超前時(shí)，2：U(r*cosx*sin)1(0.01770.80.04150.6)0.010741.074%k7502k2效率與cos0.8滯后時(shí)相同：2Scos17500.8N2p97.24%Scos2p17500.81213.263.8N2kNoP142 4–22 解：1p2p16.61221.2S0kN2p98.1%cosp118000.86.61221.2N2okNmp6.60.5580kN12p126.6S098.5%maxcos2p0.55818000.826.6mN2oP142 4–24 解：,.,.P133 4–33 解：kU122011II2200163.64(A)III36.36(A)U218091k11/91221SIU36.361806544.8(W)SIU163.6418029455(W)電磁122傳導(dǎo)12第五章三相異步電動(dòng)機(jī)原理P1895–5解：20000400200200謝謝閱讀槽距角 ；每極每相槽數(shù)q=3sinqsin320o22k0.9598∴p120oqsin23sin2∵元件電勢(shì)Ey=40V∴元件組電勢(shì)EqEk3400.9598115.2(V)qyp1P1895–6解：Z1362p4m3qZ363p360o2360o2pm433620oZsinqsin320oy22kkk90o10.96sin1w1y1p120oqsin23sin2NpqN231060(匝)每相匝數(shù)：1a1,.E4.44fNk4.4450600.960.172219.94(V)謝謝閱讀1 1 1 w1P189 5–7 解：Ky1y9070.9397p36002360020sin0sin9900Z3601sinqsin3200qZ1363(槽)k220.95982mp232p1qsin3sin20022kkk0.93970.95980.902w1y1p1P190 5–26 解：p60f60503.083n11000rpm取整數(shù)1snnN10009750.0251n1000N1P751037500094.2%N3UIcos33801390.87NP1NNNP190 5–27 解：PPp p 8.61034252107965(W)謝謝閱讀M 1 cu1 Fep sP0.057965398.25(W)精品文檔放心下載cu2 MPPp 7965398.257566.75(W)精品文檔放心下載m M cu2P190 5–29 解：n950rpmn1000rpm（1）N1Snn10009500.051N1000Nn1（2）PPpp281.1029.1(kW)mNmsPP29.1psP0.0530.631.532(kW)m30.63(kW)M1S10.05cu2MNPPpp30.632.232.83(kW)（3） 1 M cu1 Fe,.28NP232.8385.3%1IP32.83103156.68(A)（4）N3Ucos33800.88NNP190 5–30 解：PP

p

p

10.710345020010050(W)謝謝閱讀M

1

cu1

FesP0.02910050291.45(W)謝謝閱讀cu2 MPPp10050291.459758.55(W)mMcu21∵四極電機(jī)，∴n=1500r/minT9.55P9.551005063.985(Nm)nM15001P190 5–31 解：n1455rpmn1500rpm（1）N1Snn150014550.031N1500Nn1（2）PPpp100.20510.205(kW)mNmsP1SppSP0.0310.2050.316(kW)Sm10.03mcu2cu21ST9550P95501065.64(Nm)N（3）Nn1455NT9550pmps95500.2051.346(Nm)on1455NTP955010.20567(Nm)mNP1905–33解：Z0U/3380/360.3()00rpp264110m6.4()03I233.6420xZ2r260.326.4260()000,.ZUK/3100/38.25()kIk7rpk4703.2()k3I2372KxZ2r28.2523.227.6()kkkr'rr3.221.2()2k1xx'1x17.63.8()122k2rr6.424.4()精品文檔放心下載m 0 1xx603.856.2()謝謝閱讀m 0 1第六章三相異步電動(dòng)機(jī)的電力拖動(dòng)P2516–33解：UN380/3219.4(V)Snn10009570.0431N（1）Nn10001TmpU211(xx')2（2）max11111233219.4270.84(Nm)222.08r'TmpU2s21r'（3）N1(r)2(xx')2121s1233219.421.531.530.04333.335(Nm)250(2.08)2(3.124.25)20.043T2.215maxNSr'1.530.19982（4）maxr2(xx')22.082(3.124.25)2112P2516–34解：T9550P75N9550994.8(Nm)（1）Nn720N,.T2.4994.82387.52(N.m)謝謝閱讀（2） max m NSnn7507201N0.04（3）Nn7501ss(21)0.04(2.42.421)0.183（4）mNmm2Ts22387.52(N.m)maxsss0.183msNE2N0.042130.0224()感謝閱讀（5）23I3220NP252 6–35 解：Snn7507171N0.044(1)Nn7501sNE2N0.044223.50.12()謝謝閱讀23I347Nss(21)0.044(3.153.1521)0.27mNmmsrRm2∵sr2∴smrRsm0.1210.272.5222ssN(T)0.273.15T(3.15T)1mTMN2NNAmTT0.7T0.7T2LLNNss0.0304BAT9550P955016N213(Nm)Nn717NT2T23.1521316.19(N.m)smN2.520.0304BsmsB0.03042.52sBmsT3.15T(3.15TsmTN(MN)212.52NN)210.284(2)cmTT0.7T0.7TLLNNn(1s)n(10.284)(750)537(r/min)c c 1,.PTT2n2537C0.72138384.6(W)MCCL6060PP(1s)P(10.284)8384.66003.4(W)2mcMpPP8384.66003.42381.2(W)cu2MmpRp12381.22126(W)cuRrRcu20.12120.7T（3）轉(zhuǎn)子串電阻前后 L N沒有變，TCIcos據(jù)Tm22，CT沒有變、U不變故Φ不變、cosΦ基本不變，1m2∴轉(zhuǎn)子電流基本不變。P2526–36解：Snn150014601N0.027Nn15001sNE2N0.0273990.0536()謝謝閱讀23I3116Nss(21)0.027(2.82.821)0.146mNmmsnn15005001n15000.671ssT2.8T(2.8TmTN(MN)210.67NN)14.59mTT0.8T0.8T2LLNNR(S'1)r(4.59m1)0.05361.63()cS20.146mssN(T)mmTMN2【或：TTLL0.1462.8T(2.8T)0.0213NN10.8T0.8T2NNR(S1)r(0.671)0.05361.63()cS20.0213結(jié)果相同】P252 6–38 解：20/311.547(A)NP 3IU cos 3203800.8711452.32(W)精品文檔放心下載（1） 1 N N N,.P11452.320.87510020.8(W)謝謝閱讀2 1T9550P955010.020866(Nm)N1450NnN（2）直接起動(dòng)時(shí)：TKT1.4TstTNNU'U/k降壓起動(dòng)時(shí)，設(shè)：1N，則有：T'(U/k)21kT1.4T1.4k1.182stNstNstNstNU380U'kN1.18322(V)I'1I1kI172046.6(A)（3）Y/Δ起動(dòng)：st3st3IN3T'1T1KT11.4T0.460.5Tst3st3TN3NN所以，不可以半載起動(dòng)。T'1TT'0.5TT1.4T（4）st3ststNstNk22.8k1.67I'1I1kI172050(A)stk2st2.8IN2.8U380U'kN1.67227.5(V)P2526–43解：snn7507260.0321N(1)Nn7501sNE2N0.0322850.081()感謝閱讀23I365Nss(21)0.032(2.82.821)0.173mNmmssN(T)2.8T(2.8T)1mTMN2NNAmTT0.8T0.8T2LLNN2s20.0251.975精品文檔放心下載B AsrRm2∵sr2∴smrRsm0.0812.120.1734.722,.T9550P955030N394.6(Nm)Nn726NT2T22.8394.6789.2(N.m)smN4.71.975BsmsB1.9754.7sBms(T2.8T(2.8T1smTNMN)214.7NN)0.68(2)cmTT0.8T0.8T2LLNN(1s)n(10.68)(750)240(r/min)精品文檔放心下載c c 1P253 6–44 解：Snn7507260.0321N750（1）Nn1E2NSN2850.0320.081()精品文檔放心下載轉(zhuǎn)子電阻：23I365N固有特性上的臨界轉(zhuǎn)差率：SS(21)0.032(2.82.821)0.1733mNmm固有特性上T=T時(shí)的轉(zhuǎn)差率：LNSASm[T(T)21]0.1733(2.82.821)0.032mNmNLLR(S1)rSSrSRSS(3.11)0.0321.2567S1c10.081c2S2r1112(1S)n1(11.2567)750192.5rpm感謝閱讀T'n'P'2T'n'T(192.5)9550P'307.9545(kW)22N726（2）PTnTn2TNNNNNN9550P'pp7.95451.056.9045(kW)感謝閱讀總機(jī)械功率： mec 2 mec sP1SppSP1.2567(6.9045)33.8(kW)S1mec11.2567meccu2cu2S外串轉(zhuǎn)子電阻的損耗＝33.8-1.5=32.3kWP'7.9545(kW（3）2P253 6–45 解：,.Snn7507201N0.04（1）Nn7501E2NSN2130.040.0224()感謝閱讀23I3220NSS(21)0.04(2.42.421)0.183mNmms1T1.5T起動(dòng)時(shí)：ststNSmSst[T(T)1]TT)1]'mNmN2mNmN2ststNN[12..54(12..54)21]2.85謝謝閱讀R(S'(2.85m1)r1)0.02240.326()stS20.183ms2s2s20.041.96(2)BANssTT2TB時(shí)，BNSS[T(T1.96[2.4(2.4)21]3.65mNmN)21]2mB2T2T2NNR(S1)r(3.650.02240.424()m1)S20.183mP2536–46解：Snn10009600.041N1000（1）Nn1E2NSN2200.040.0261()精品文檔放心下載轉(zhuǎn)子電阻：23I3195N固有特性上的臨界轉(zhuǎn)差率：SS(21)0.04(2.52.521)0.192mNmmT9550P60N9550596.9(Nm)Nn960N（1）T=530Nm時(shí)的轉(zhuǎn)差率：SASm[T(T)21]0.192[2.5596.9(2.5596.9)21]0.0352mNmNLLn(1S)n(10.0352)1000965(r/min)A A 1,.530Nm（2）電動(dòng)機(jī)的負(fù)載轉(zhuǎn)矩： LTT5300.87461.1(Nm)實(shí)際位能負(fù)載轉(zhuǎn)矩：L1LTTT530461.168.9(Nm)摩擦轉(zhuǎn)矩：LL1T'TT461.168.9392.2(Nm)下降時(shí)電動(dòng)機(jī)軸上的等效負(fù)載轉(zhuǎn)矩：LL1SBSm[T(T)21]0.192[2.5596.9(2.5596.9)21]0.0257mNmNLL(1S)n(1(0.0257))(1000)1025.7(r/min)感謝閱讀BB1Snn1000(280)1.28（3）1nC1000C1SmcSC[TT)1]1.28[2.5596.9(2.5596.9)1]9.57'mNmN22LLR(S'1)r(9.571)0.02611.275()mccS20.192mT"461.1NmS1（4）LDSmDSD[T(T)1]1[2.5596.9(2.5596.9)1]6.31''mNmN22LLR(S''(6.311)0.02610.832()mD1)r0.192DS2m,.第七章同步電動(dòng)機(jī)P2747–12解：112（1）sinsin300NTTmEUsinoN1（2）負(fù)載轉(zhuǎn)矩不變，即：NxN不變。1c