电磁装置设计原理-感应电机设计-作业

[键入公司名称][键入文档标题]2010/9/5序号名称公式单位算例一额定数据及主要尺寸1型号Y132M--42输出功率PNkW7.53相数m34接法连接5相电压U=线电压V3806功电流UmPINKW/103A6．587极对数p28定子槽数Z1369转子槽数Z23210定子每极每相槽数q1=Z1/2pm311定转字冲片尺寸见下图定转子冲片尺寸定子外径D1cm21定子内径Di1cm13.6转子外径D2cm13.52转子内径Di2cm4．8定子槽形半闭口圆底槽定子槽尺寸b01cm0.35bs1cm0.67bs2cm0.88rscm0.44hs0cm0.08hs1cm0.09hs2cm1.36转子槽形梯形槽转子槽尺寸b02cm0.10bR1cm0.55bR2cm0.30bR3cm——bR4cm——hR0cm0.05hR1cm0.13hR2cm2.17hR3cm——12极距pDi21cm10.68113定子齿距111ZDticm1.18714转子齿距222ZDtcm1.32715气隙长度cm0.0416转子斜槽距bskcm1.18717铁心长度ltcm1518铁心有效长度lef=lt+2cm15.0819净铁心长tFeFelKl式中KFe----铁心叠压系数cm14.250.9520绕组型式单层交叉式21并联路数1122节距y(以槽数计)1～92～1011～1823每槽导线数Ns13424导线并绕根数、线径Nc1dc1mm2-1.0625每根导线截面积A1ccm20.0088226槽有效面积Asef=As—Ai式中As=2/1221221ssssrhbbb)2(12ssiirhCA（对单层绕组）H—槽楔厚度Ci—槽绝缘厚度h2si=h1s+h2scm21.144427槽满率00211100sefcssAdNNk式中d——绝缘外径（cm）77.22%28每相串联导线数1111maNZNs40829绕组分布系数K1d=2sin2sin11aqqa，式中q1=Z1/(2pm),(对600相带)q1=Z1/(pm)(对1200相带)——槽电角，=2p/Z10.95930绕组短距系数K1p=2/sin，式中——双层绕组短距比，)/(1mqy131绕组系数K1dp=K1dK1p0.96二磁路计算32每极主磁通1=1122.2dpEKfNUKWb0.00804式中KE先假定为0.9233每极下定子齿面积A1t=b1tlFeZ1/2pcm275.66834每极下转子齿面积A2t=b2tlFeZ2/2p式中b1t、b2t——定、转子齿宽cm276.3835定子轭截面积A1j=h,1j×lFe式中ssijrhDDh31211'1(圆底槽轭的计算高度)cm233.012536转子轭截面A2J=h,2jlFe式中KRijdhDDh32222'2(平底槽轭的计算高度)Kd——转子轴向通风孔直径cm230.6537空气隙面积A=eflcm2161.07638波幅系数Fs，由饱和系数FT查附图7-2，先假定FT为1.241.4639定子齿磁密411110tstAFBT1.55240转子齿磁密421210tstAFBT1.53741定子轭磁密4111102jjABT1.21842转子轭磁密4212102jjABT1.31243气隙磁密4110AFBsT0.72944定子齿磁场强度H1t由B1t查硅钢片磁化曲线A/cm20.5845转子齿磁场强度H2t由B2t查硅钢片磁化曲线A/cm20.7946定子轭磁场强度H1j由B1j查附硅钢片磁化曲线A/cm5.1147转子轭磁场强度H2j由B2j查附硅钢化磁化曲线A/cm8.4348定子齿磁路计算长度h,1t=h1s+h2s+rs/3(对圆底槽)cm1.59749转子齿磁路计算长度h,2t=h1R+h2R(对平底槽)cm2.350定子轭磁路计算长度phDljj41'1'1cm7.33751转子轭磁路计算长度phDljij41'2'2cm2.79552气隙磁路计算长度ef=K1K2其中K1——定子气隙系数，/75.04.4)/(012011bb（对半闭口及半开口槽）cm0.053931.30853定子齿磁位降F1t=H1th,1tA32.85954转子齿磁位降F2t=H2th,2tA47.81755定子轭磁位降F1j=C1H1jl,1j式中C1——定子轭磁路校正系数，查附图7-3A19.4960.5256转子轭磁位降F2j=C2H2jl,2j式中C2——转子轭磁路校正系数，查附图7-3A9.8480.41857气隙轭磁位降F=0.8Bef×104A314.54058饱和系数FT=FFFFtt21与初选饱和系数误差1.2561.33%59总磁位降F=Ft1+Ft2+FJ1+FJ2+FA424.56060励磁电流1144.4dpmKmNpFIA3.20961励磁电流标KWmmIII*0.48862励磁电抗标么值**1mmIX2.050三参数计算63线圈平均半匝长度l1e=lt+2(d+l,E)，见图2-3式中d—直线部分伸出长，d=1～3cmI'E=Kc(单层线圈端部斜边长)K对2、4极取0.582sin1con111222sintssssbrbrba—c平均节距prhhhDssssoic22211cmcmcmcm30.1891.515.1890.8230.56810.508'Eldfdfddtlc线圈尺寸示意图64线圈端部平均长度)(2'dllEEcm15.18965线圈端部轴向投影长度sin'Edlfcm3.4666阻抗折算系数KZ=22222111dpdpKNmKNm式中对笼型转子m2=Z2,N2=1,K2dp=11437667定子相电阻标么值R1=111111cccANalN式中1——导线电阻率，Ohm*mm2/m1.5150.02170.0262UIRRKW/1*168转子导条电阻RB=KZBBBBAlK式中KB是铸铝导条系数B——导条电阻率lB——转子导条长度AB——每根导线截面积Ohm*mm2/mcmcm21.14071.040.0434160.965标么值R*B=RBUIKW0.018669转子端坏电阻标么值RR=KZRRRApDZ222式中R—端坏电阻系数DR——端环平均直径AR——端环截面积R*R=RRUIKWcmcm20.3270.043410.72.60.0056670转子电阻标么值R*2=R*B+R*R0.024371漏抗系数CX=0.4effl2121pqNUIKW×1080.014372定子槽漏磁导1s=K1U1U+K1L1L式中K1U——槽上部节距漏抗系数K1L——槽下部节距漏抗系数1u——槽上部漏磁导1L——槽下部漏磁导1.1270.88750.9160.40970.833473定子槽漏抗X*1S=efll1xsc1式中l1=lt(对无径向通风道)0.0161111/25/2vsvsvvbbbbbb或见附图7-874定子谐波漏磁导1d见附图7-9对600槽绕组，且2/3≤≤11d=182×21132121341234115qqccqcq-Kdp12式中c——短距槽数，c=3q1(1-)0．012975定子谐波漏抗X*1d=xsefcdkqm12110.026576定子端部漏磁导)64.0(67.01cEEl（对单层交叉式绕组）5.67177定子端部漏抗xEefEClqX11*10.016178定子漏抗标么值*1*1*1*1EdSXXXX0.058779转子槽漏磁导222LUs（对笼型转子）式中2U——槽上部漏磁导，22/oROUbh2L——槽下部漏磁导2.1750.51.67580转子槽漏抗XXSdpefSCZZKll221212*2式中tll2（对无径向通风道）cm0.0321581转子谐波漏磁导对笼型转子，2d见附图7-10,3,2,111222kPZkd0.01382转子谐波漏抗XXdsefdpdCKKqm222111*20.024683转子端部漏磁导PDllRtBE213.1757.02（对笼子型转子）2.69584转子端部漏磁导XxEdpefECKlq2211*20.0070685转子斜槽漏抗X*222*5.0dSKXtbsk式中bsk——斜槽距0.015986转子漏抗标么值X*2=X**2*2*2skEdSXXX0.079787运行总漏抗X*=X1*+X2*0.138四运行性能计算88满载电流有功分量1*PI式中—效率，先假定为0.881.36489满载电抗电流2**12**1*1PPXIXIXI式中*1****111XIXXXmmm0.18861.02990满载电流无功分量***xmQIII0.09291满载电动势比值*1**1*1XIRIKQPE与初选满载电动势比值误差0.9654.87%92定子电流2*2*QpIIIIWII*11A1.147.593转子导条电流'***2/XIIX1*22KIIIW式中K1——电流折算系数21111ZKNmKdpA1.151278.0236.7194转子端环电流222IPZIRA70895定子电密J21111110CCANaIA/mm24.25296线负荷11111iDIZmAA/cm214.897热负荷111JAAJA/cm913.6498转子导条电密2210RRBAIJA/mm22.88299转子端环电密210RRRAIJA/mm22.723100空载电动势比值*1*1XIKmEO0.9688101空载定子齿磁密110tEEOtBKKBT0.97102空载定子轭磁密110jEEOjBKKBT1.226103定子齿单位铁损耗p1t由B10t查硅钢片损耗曲线W/cm30.04388104定子轭单位铁损耗1jp由10jB查硅钢片损耗曲线W/cm30.03674105定子齿体积V1t='112tthpAcm3483.3106定子轭体积'1114jjjlpAVcm31937.68107铁损耗标么值1121111jjttFVpkVpkp式中k1,k2——铁损耗校正系数，按经验选定，对半闭口槽取k1=2.5，k2=23*10NFEjvPppW195.390.026108基本铁损耗31111*110NjjttFepVpVpp0.0123109定子电阻损耗*12*1*1RIpCu0.0341Cup=310NPPW255.73110转子电阻损耗*22*22RIpCu3*2210NCuCuppPW0.0322241.37111风磨损耗*jvp参考实验值确定3*10NjvfvpppW0.009369.75112杂散损耗*sp按标准确定或参考实验值确定sp=3*10NsppW0.02150113总损耗****2*1*sjvFeCuCupppppp0.1216114输入功率**11pp1.1216115满载效率*1*1pp与初选满载效率误差0.89161.31%116功率因数*11cosI0.8916117满载转差率**2emCuNpPs式中*emp——气隙电磁功率*1*1*1*FeCuempppp0.03031.061118额定转速PsfnNN