鼠籠異步電機(jī)電磁計(jì)算

一基本數(shù)據(jù)三相鼠籠異步電機(jī)計(jì)算方式：電動(dòng)機(jī)發(fā)電機(jī)＜一＞、額定數(shù)據(jù)1、額定輸出功率P=280kw.l25°N2、額定電壓2、額定電壓UN3、 額定頻率f=50Hz?50N4、 相電壓*△接U=U=380V 6900NY接U=U/込0N5、 極對(duì)數(shù)P=1?26、 相輸出功電流I=PnX103=245.61Al603-864734299517 計(jì)算1kw3U07、 同步轉(zhuǎn)速n=60fN=3000r/min1500sP〈二＞、定轉(zhuǎn)子鐵心主要尺寸8、 定子鐵心外徑D=580mm?80019、 定子鐵心內(nèi)徑D=330mm?510i110、 定子槽數(shù)Z=48.72111、 極距T=竺=330X3.1415926=518.3628mm400-553063332598計(jì)算22P 2x112、定子每極每相槽數(shù)q=纟—=8-612mp13、定子齒距\=導(dǎo)=33013、定子齒距\=導(dǎo)=330x3.141592648=21.5984mm22-252947962922114、定子槽寬b=17mm大型異步電機(jī)定子槽為矩形平底槽s1a■1415、定子槽深h=60mm?84si16、定子槽口寬b15、定子槽深h=60mm?84si16、定子槽口寬b=6.5mm?14oi17、定子槽口高h(yuǎn)=2mm―0，8sia18、19、轉(zhuǎn)子鐵心內(nèi)徑D=125mmi2轉(zhuǎn)子鐵心外徑D=323mm220、轉(zhuǎn)子槽數(shù)Z=40?82221、計(jì)算3轉(zhuǎn)子每極每相槽數(shù)q= —=62—6,8333333333333321、計(jì)算322mp322、 轉(zhuǎn)子齒距t=竺=323%'⑷5926=25.3684mm19-42423750450762Z 40223、 轉(zhuǎn)子槽寬b=i0.5mms2a24、 轉(zhuǎn)子槽深h=32.8mm?48s225、 轉(zhuǎn)子槽口寬b=2.5mm?2,5o226、轉(zhuǎn)子槽口高h(yuǎn)=3mm26、轉(zhuǎn)子槽口高h(yuǎn)=3mm?1,5s2a轉(zhuǎn)子槽口高h(yuǎn)s2a計(jì)算計(jì)算428、轉(zhuǎn)子鐵心總長(zhǎng)1=l+5=573.6+5=578.6mm805t2tl29、鐵心平均長(zhǎng)1=0.5（1+1）=576.1mm802.5t t1t230、31、定子鐵心鐵長(zhǎng)1=KFe1 Fe轉(zhuǎn)子鐵心鐵長(zhǎng)1=KFe2 Fe30、31、定子鐵心鐵長(zhǎng)1=KFe1 Fe轉(zhuǎn)子鐵心鐵長(zhǎng)1=KFe2 Fex1=0.95x573.6=544.92mmt1x1=0.95x578.6=549?67mmt2轉(zhuǎn)子沿軛高方向的軸向通風(fēng)孔排數(shù)mk33、轉(zhuǎn)子軸向通風(fēng)孔直徑d=28?42mmk34、轉(zhuǎn)子軸向通風(fēng)孔每排上的孔數(shù)n=12.°WT—L定子槽型 轉(zhuǎn)子槽型〈三＞、定子繞組數(shù)據(jù)35、 每槽導(dǎo)體數(shù)N=2x每線圈匝數(shù)=2x3=6.4S136、 每相并聯(lián)支路數(shù)a=2!21請(qǐng)選擇定子線圈的導(dǎo)線類型散匝下線 排線37、繞線線規(guī)axb裸線丿=1.4a'b'（裸線）—1.502=0.9321.932090545938748裸①..4帶絕緣皮①”02裸axb.75 5.6 帶絕緣皮a'b'4?05 &0可選步驟計(jì)算5： 效率初步估計(jì)!0.94 功率因數(shù)初步估計(jì)!0.922.2A/m2定子電流初步估計(jì)422.2A/m2定子電流初步估計(jì)42A并繞根數(shù)N1—42估算：計(jì)算5ZN38ZN38、每相每支路串聯(lián)匝數(shù)w—―i_si16a148x6=2424 計(jì)算66x239、每根導(dǎo)線截面積S39、每根導(dǎo)線截面積S—普3.1415926x1.964—1.5394mm220.1440、 每支路導(dǎo)線截面積S—NxS—42x1.5394—64.6548mm2a11 1120.8441、 繞組所跨的槽數(shù)—14個(gè)槽?15繞組節(jié)距比0—14x100%—58.33%.83333333333333324繞組節(jié)距y—0xt—58.33%t—302.3610mm 333.7942194438321142、 繞組短距系數(shù)K—sinf目x90。］=0.79341.965925826288983p1J24丿43、繞組分布系數(shù).956142770472723

K=

d1qsin0.5（30。）8sinIqi丿44、定子繞組系數(shù)K=K=

d1qsin0.5（30。）8sinIqi丿44、定子繞組系數(shù)K=KxKdp1 p1 d1=0.7582.923562995619102槽面積734.265034610903mm2槽絕緣占面積39.4169197644317mm2槽有效面積694.848114846471定子槽楔高?4 mm＜四＞、轉(zhuǎn)子繞組數(shù)據(jù)計(jì)算7槽滿率排線下線時(shí)無槽滿率45、轉(zhuǎn)子導(dǎo)條高度h=29.2mm?45B46、轉(zhuǎn)子導(dǎo)條寬度b=5.1mmB1|6.347、 轉(zhuǎn)子導(dǎo)條長(zhǎng)度1=664mm?880B48、 轉(zhuǎn)子導(dǎo)條截面積S=217.31mm2.252B49、端環(huán)截面積高a=42mm?49、R端環(huán)寬b=30mm■40R50、端環(huán)截面積S50、端環(huán)截面積S=axb=30x42=1260mm2RRR2400計(jì)算851、端環(huán)平均直徑D=D-a=323-42=281mm_51、R2R＜五＞、定轉(zhuǎn)子槽類型確定:通過點(diǎn)擊按鈕來選取絕緣槽楔定子半開口槽絕緣槽楔定子開口槽 磁性槽楔絕緣槽楔定子半開口槽絕緣槽楔定子開口槽 磁性槽楔絕緣槽楔定子開口槽 Kfe=2.2二磁路計(jì)算＜一＞、磁路各部分尺寸、氣隙部分52、氣隙52、氣隙b1.553、 氣隙有效長(zhǎng)k=上匕+ )=10887丨1.69395667531194計(jì)算23TOC\o"1-5"\h\zb1t(5a+b)-b2 ?o1 o1k= t2Cua+。弋丿=101451.02994052279219b2t(4.4a+0.75bo2 o2axkxk=3.8657mm一2.61701193563715ef a1a254、 鐵心有效長(zhǎng)1=1+2a=576.1+2x3.5=583.1mm805.5eft55、 每極下氣隙面積S=tx1x10-2=3022.5735mm2_3226.45492514408a efII、定子齒部分D+2hi1+h+1hs1as1b3D+2hi1+h+1hs1as1b31/-b丄=24.059625-13.01826=11.041365mms1357、2齒高處齒寬11987952562189兀Di1(+57、2齒高處齒寬11987952562189兀Di1(+2hs1a+hs1b+1hbT121丿丿-b1=25.095827-13.953=11.142827mms1258、每極定子齒截面積S =ZiS =Zixbixl.丄 2PT11 Fe1T1 333X10-2=48X11.041365x544.92x10-2

2X1=1443.9985mm21472.81918133652S=xbS=xb[xlT1丄2P珥 Fe122x10-2=48x11.142827x544.92x10-2

2xi=1457.2678mm21639.9519105074559、定子齒路長(zhǎng)L=2hx10-1=12cm16.8T1 s1III、定子軛部分6°、定子軛高h(yuǎn)廠-hs=空浮-60=65mm6161、定子軛截面積S=hxlx10-2=65x544.92x10-2=354.198mm2j1j1Fe1463.6兀C—h） 3.1415926（580—65）.62、疋子軛磁路長(zhǎng)L=丄 4x10-1= x10-1=80.8960cmj12P 258.0409242750568W、轉(zhuǎn)子齒部63、轉(zhuǎn)子齒寬b=T217b=T217兀D-2xh+h+_h12乂s2as2b22丿丿-b丄=22.50951-7.851=14.6585mmS2110.970320122397464、64、每極轉(zhuǎn)子齒截面積1719.8582242887Zxb xlx10-2G2 T2丄 Fe2 40x14.6585x549.67x10-2S= = =1611.4675mm2T2丄 2P265、轉(zhuǎn)子齒路長(zhǎng)L65、轉(zhuǎn)子齒路長(zhǎng)L=2hT2x10-i=6.56cms29.6轉(zhuǎn)子軛部66、轉(zhuǎn)子軛高1D-_Dh i2j2 2-66、轉(zhuǎn)子軛高1D-_Dh i2j2 2-hs2-2md=88.9200mm3kk97.166666666666767、轉(zhuǎn)子軛截面積68、S=hxl x10-2=88.9200x549.67x10-2=488.7666mm2743.082083333334j2j2Fe2轉(zhuǎn)子軛磁路長(zhǎng)丄-2h-h)2s2 x10-1=26.4648cm2PLj224.6484123612837＜二＞、勵(lì)磁安匝與勵(lì)磁電流計(jì)算假定K=1.01K假定K=1.01K=1.1090z 9a=0.635i(1.0853-1.1020(0.654169、 定子空載感應(yīng)電動(dòng)勢(shì)E=KxU748.85710z970、 主磁通.137285920515108 ke1.018KU①= z 9 4fwKK

N1dp19=0.09198597Wb(KU①= z 9 4fwKK

N1dp19=0.09198597Wb4x50x24x0.7582x1.1090

71、氣隙磁密-650513402433206① 009198597B= x104= 9 x104=0.479259798T。aS 0.635x3022.5735iG72、定子齒磁密BT113aSiT113x1040.091985970.635x1443.9985x104=1.003185220T1.42505760228369T1aSiT1T1aSiT110.091985970.635x1457.2678x104=0.994050615T1.2798254373833573、轉(zhuǎn)子齒磁密1.22036348200788① 009198597B= x104= x104=0.898930923TT2丄aS 0.635x1611.4675T22 iT2丄274、定子軛磁密1.48065056638382① 009198597B=——x104= x104=1.298510592Tj12S 2x354.198j175、轉(zhuǎn)子軛磁密.923760130908202① 009198597B=——x104= x104=0.94100099Tj22S 2x488.7666j276、氣隙勵(lì)磁安匝數(shù)_2723.84214153541F=1600xBxG=1600x0.479259798x3.8657=2964.279362G Gef

77、定子齒磁場(chǎng)強(qiáng)度H使用B1.42505760228369計(jì)算

ti ti13查B-H表查B-H表計(jì)算11經(jīng)過插值處理后的H=2.27085710.499150132456T178、轉(zhuǎn)子齒磁場(chǎng)強(qiáng)度查B-H表查B-H表計(jì)算11經(jīng)過插值處理后的H=2.27085710.499150132456T178、轉(zhuǎn)子齒磁場(chǎng)強(qiáng)度H使用B1.22036348200788T21計(jì)算79、T2經(jīng)過插值處理后的H=1.853219T2定子齒勵(lì)磁安匝176-385722225261F=HL=2.270857x12=27.250284T1T1T180、轉(zhuǎn)子齒勵(lì)磁安匝33-5536632905966F=HL=1.853219x6.56=12.157117T2T2T281、校驗(yàn)飽和系數(shù)值81、校驗(yàn)飽和系數(shù)值1-07707472555569計(jì)算13K（實(shí)際值=F+F]+畀2=2964.279362+27.250284+12.157117z、八 2964.279362顯然IKG際值）-K|=8.22527444430987E-03Z Z差值=IK實(shí)際值）-KIZZ差值小于0.01，顯然符合迭代精度要求82、定子軛磁場(chǎng)強(qiáng)度叫使用B^1.48065056638382計(jì)算定子軛部系數(shù)!0.33883、84、84、85、經(jīng)過插值處理后的H=5.113473ji轉(zhuǎn)子軛磁場(chǎng)強(qiáng)度H 使用Bj2 j2轉(zhuǎn)子軛部系數(shù)?58183、84、84、85、經(jīng)過插值處理后的H=5.113473ji轉(zhuǎn)子軛磁場(chǎng)強(qiáng)度H 使用Bj2 j2轉(zhuǎn)子軛部系數(shù)?581查B-H表查B-H表18.1442137925766.923760130908202計(jì)算14計(jì)算查B-H表查B-H表1.60281451886369經(jīng)過插值處理后的H=2.006448j2 定子軛勵(lì)磁安匝F=HL=355.950145302698jijiji轉(zhuǎn)子軛勵(lì)磁安匝F=HL=22.9534700889704j2j2j2每對(duì)極總勵(lì)磁安匝3312.68514244294計(jì)算15工F=F+F+F+F+F=3470.575672bT1T2jij286、 勵(lì)磁電流I=呼為F=70.623A110.666459142026m6*'2WK1dpi87、 勵(lì)磁電流標(biāo)么值i =70竺二0.287541224.183263656339195mI245.61kw88、 勵(lì)磁電抗x=丄= 1 =3.477762202_5.45661927725125mi0.287541224mKe_實(shí)際I1.02298000329127ke-差三參數(shù)計(jì)算89、漏抗系數(shù).136732384989556計(jì)算16K＞1dpi3PU2x106＜一＞、定子參數(shù)1.6兀2fPlC= NNefx1.6“2x50x280x583?1(24x聲”彳0985354263x1x3802x106TyII1 1■1V11 1w定子線圏繞組圖90、可根據(jù)給定的額定電壓智能選取A和Y參數(shù)計(jì)算171 C2定子線圈伸出鐵心的直線部分長(zhǎng)A]=30mm―100定子線圈鼻部的圓弧半徑Y(jié)=10mm?35C291、定子繞組端部斜邊傾斜角SinabS1bbSinabS1bb+2RS1b—1+2R+2b-T1310.9+2x8.510.9+2x8.5+2x11.041365.538711157275591Cosa=J-Sina2=0.829733.84249052755909a=33928I32.595944767878392、定子繞組實(shí)際跨距K(D+2(h+h)+h+RTOC\o"1-5"\h\zT s1a 1 Dy 2P=?！?0+2&+0.97)+47.53+8.5)x°5833388.7720908816392X1 ■=359.1613mm93、定子線圈端部斜邊長(zhǎng)230.727870619514T=丄=359.1613=216.4319mm12Cosa2x0.82973394、 定子繞組端部斜邊軸向長(zhǎng)124.295678197171M=TxSina=216.4319x0.558161=120.8038mm1195、 定子線圈平均匝長(zhǎng)I3274.76985968002計(jì)算18l=4(T+A)+2l+2?！瞃+也w1 1 1 t1 (C24丿=4(216.4319+30)+2x573.6+2兀［10+60l=2290.0072mmI4丿96、 定子相電阻［F級(jí)絕緣溫升以B級(jí)考核電機(jī)標(biāo)準(zhǔn)工作溫度可取75°C］

pWlX10-31 1w1aS1a10.0217xpWlX10-31 1w1aS1a10.0217x24x2290.0072x10-32x64.6548=0.00922321967.05685262711583E-0397、定子相電阻標(biāo)么值r=R「= =0.005961453084061 1U 38006.1759194734263E-03為獲得最大合成電動(dòng)勢(shì)選取60度相帶，定子繞組為60度相帶繞組。12當(dāng)1<0<2時(shí),3 1360-1 6x0.5833-1K— —— =0.62495U1 4 42當(dāng)2<0<1時(shí),3 1K—IU1 498、定子上層線圈節(jié)距對(duì)槽漏磁影響系數(shù).87599、定子下層線圈節(jié)距對(duì)槽漏磁影響系數(shù)當(dāng)1<卩<2時(shí)，K=18卩1+1=18X0.5833+1=0.718753 13 L1 16 16K=L190+71 16.90625100、定子槽漏磁導(dǎo)h九 ―s1aU1bo12h+ s1b b+bo1s1b=看+沙=。4191865615.71428571428571E-02九=158［杳圖］I1.98095238095238L1

九=K九+K九S1U1U1L1L1=0.62495x0.419186561+0.7187125x1.58=1.3976166001.84523809523809 計(jì)算19101、 定子槽漏抗計(jì)算長(zhǎng)L=1-nb=l=573.6mm800S1t1v1v1t1102、 定子槽漏抗標(biāo)么值▽廠L九0.098535426x573.6x1.397536391八八““”"X=CS1S1= =0.029457033S1xK2lq 0.75822x583.1x8dp1ef14.89625407121137E-02103、定子諧波的繞組系數(shù)平方和［60度相帶整數(shù)槽］12當(dāng)312當(dāng)3"1<3時(shí)'(K)—dP1V=0.0025IV丿查圖得I0.0025104、定子諧波漏抗標(biāo)么值.018644649084279計(jì)算203t104、定子諧波漏抗標(biāo)么值.018644649084279計(jì)算203td1X兀2K 2Qdp1ef寸 ［=0.098535426xIV丿3x518.3628x0.0025

兀2x0.75822x3.8657=0.01746585404105、定子端部漏抗標(biāo)么值2.28443076519547E-02X=C1.2(Al+0.5M1)二0.098535426x^2^0+0.5x120.4969)=0.01832891214elXl 583.1ef106、定子漏抗標(biāo)么值I9.04514974483474E-02X=X+X+X=0.029455343+0.017465942+0.018300811=0.065251799451S1d1e1

＜二＞、轉(zhuǎn)子參數(shù)107、轉(zhuǎn)子電阻計(jì)算系數(shù)-111966238301577 計(jì)算R = 2兀P2S 2x107、R = 2兀P2S 2x兀x12x1260R110、運(yùn)行時(shí)轉(zhuǎn)子電阻標(biāo)么值I5.597952748°8l55E-°3r=r+r=0.004257178+0.001978105=0.006235285BR111、轉(zhuǎn)子槽漏磁導(dǎo)C=26.04^WKr1dp1)12kw

U0x10-5=26.04(24x0.7582》X10-5=0.05572233862108、導(dǎo)條電阻標(biāo)么值4.7682°9916°5632E-°3r=CBrlP-B_B-SZB20.05572233862x664x1.0217.31x40=0.0042565497109、端環(huán)電阻標(biāo)么值8.29742832025229E-04r=CRr=0.001978105DP 0.05572233862r=CRr=0.001978105九—hS2Ubo22h+ s2b b+bo2s2b=25+詐—小7984737-0.9264幾S2L—y(卩)r^+v—0.64xi+S—2.395897436s2b s2a|2.0202 計(jì)算22九—九 +九—1.357984737+2.395897436—3.753882173S2S2US2L2.9466

112、轉(zhuǎn)子槽漏抗計(jì)算長(zhǎng)帀5L=1-nb=1=578.6mmS2t2 v2v2t2113、轉(zhuǎn)子槽漏抗標(biāo)么值匚0589237397858446PL九0.098535426x6x1x578.6x3.753882173X=CS2S2= =0.055055369S2x1z 583.1x40ef2114、轉(zhuǎn)子諧波漏抗標(biāo)么值工R= P兀⑺、Px180工R= P兀⑺、Px180。）-1=SinZ2丿Sin1x兀/401x180。)-1=0.00205870640丿1.95939017104863E-03兀2x3.8657X=C亠YR=0?098535426x3x518?3628x0?002058706=0.008268256d2X兀兀2x3.86571.24643081612278E-02115、轉(zhuǎn)子端部漏抗標(biāo)么值I匸5645206365403^-02X=e2C X-X=e2C X-1.51ef需3-578.6)+281x0.5651=0.027506891116、運(yùn)行時(shí)轉(zhuǎn)子漏抗標(biāo)么值I8.7°332543124752E-°2X=X+X+X=0.055055369+0.008268256+0.027506891=0.0908305162S2 d2 e2117、總漏抗標(biāo)么值X沁X+G+iX)X1m1 2=0.065222096+Q+0.287541224x0.065222096>0.090830516=0.1577699379

118、起動(dòng)時(shí)考慮擠流效應(yīng)的轉(zhuǎn)子導(dǎo)條相對(duì)高度I4.1°112927435622g=0.2兀xh:虬x—L =0.2兀x29.2'，105x 50 -=2.785cm^i'bpx105 \10.50.0217x105s2a B119、系數(shù)①《=3.6I3-733 ①心=0.54?4022120、起動(dòng)時(shí)轉(zhuǎn)子電阻標(biāo)么值Il-75l88297355457E-°2一計(jì)算23」R=■K1-L)+L①€)]+r2stlBS2S2 RB=0.004257178血64-578.6)+578.6x3.6〕+0.001978105=0.015880355664121、起動(dòng)時(shí)轉(zhuǎn)子槽漏磁導(dǎo)1.73892444九=九+①《k=1.357984737+0.54x2.395897436=2.651769352S2g S2U S2L九X =X —S2gS2九X =X —S2gS2九S20.055055369x2.6517693523.75388213123、起動(dòng)時(shí)轉(zhuǎn)子漏抗標(biāo)么值6-28831285936252E-02X=X +X+X=0.038891508+0.008268256+0.027506891=0.0746666552St2Sg d2 e2四運(yùn)行性能計(jì)算沖片密度r=7.70中7。Fe124、定子齒重 計(jì)算24G=rZbhlx10-6=7.70x48x11.142827x60x544.92x10-6=134.651547kgT1Fe1ti丄s1Fe12125定子軛重G=2PrSLx10-3=2x1x7.70x354.198x80.8960x10-3=441.2593017kgj1Fej1j1126、定子齒部損耗P1.27982543738335計(jì)算T1使用BTl1126、定子齒部損耗P1.27982543738335計(jì)算T1使用BTl12查B-p鐵損曲線查B-p鐵損曲線經(jīng)過插值處理后的鐵損參數(shù)p=1.932849527 2.75223165922177T1P=KpGx10-3=1.7x1.932849527x134.651547x10-3=0.52062634kwT1T1T1T12.33547970463061 ［計(jì)算25J127、定子軛部損耗p使用B1.48065056638382 計(jì)算j1 j1經(jīng)過插值處理后的鐵損參數(shù)p=3.18381896 3.85790462360223P=KpGx10-3=1.3x3.18381896x441.2593017x10-3=2.107335kwj1j1j1j14.79591204007839 ［計(jì)算26

128、鐵耗K=2.02.2FeP=K￡+P=5.2559224245kw _15.6890618383598Fe FeT1j1129、鐵耗標(biāo)么值匸2551249470687^-02Fe5.2559224245280Fe5.2559224245280=0.018771151516130130、風(fēng)摩、機(jī)械耗，請(qǐng)從下列四種情況中選取冷卻方式，再計(jì)算損耗甲、二極防護(hù)式(6]2(D)212P丿(甲、二極防護(hù)式(6]2(D)212P丿(1000丿P=5.5m3選擇乙、四極及其以上防護(hù)式2(D1000選擇(D)(6]2/D)4P=1.31_-^——1—m(1000丿(2P丿(1000丿丙二極圭寸閉型自扇冷式x10=5.560926kw四極及其以上封閉型自扇冷式P=r6vrD四極及其以上封閉型自扇冷式P=r6vrDv 1—4x10=選擇m(2P丿(1000丿丁、P= kw計(jì)算27m131、風(fēng)摩、機(jī)械耗標(biāo)么值PP=m-

mPN=書6=0-01986045048.0073728132、雜散耗 P二0.005P二0.005x280二1.4kw_6.25S N133、雜散耗標(biāo)么值p二0.005.°°5S輸出功率標(biāo)么值p=輸出功率標(biāo)么值p=1N135、效率初設(shè)假定值：建議開始取值范圍（0.3?135、效率初設(shè)假定值：建議開始取值范圍（0.3?0.9999）,其實(shí)取1收斂數(shù)度很快!2=保證值=0.949?967136、有功電流標(biāo)么值11i= =P耳'0.949=1.053740781-03412616339193計(jì)算28137、空載有功電流標(biāo)么值1-99240494706878E-02i=p+p=0.018771151516+0.01986045048=0.038631601996oaFem138、電抗電流標(biāo)么值11-iX11-iXm1=0.1607866668x— 1-0.287541224x0.06525179945.182776385335436i=i-i=1.05374078-0.038631601996=1.015109178ypoa1.01420211392124i=KXi2【+.Xi)=0.170095763761xmymy.194465256921987139、無功電流標(biāo)么值.411293844240206i=i+i=0.287541224+0.170095763761=0.4576327778Rmx140、 定子電流標(biāo)么值^11291488808516i=ji2+i2=v1.053740782+0.45763277782=1.1488243513pR141、 轉(zhuǎn)子電流標(biāo)么值^05225170846212i=v-i2+i2=v1.053740782+0.1700957637612=1.067381000p x

142、定子銅耗標(biāo)么值6-74731436387365E-03P=i2r=10.00596145308406=0.0078679102Cu111143、轉(zhuǎn)子銅耗標(biāo)么值I6.19824169835369E-°3P=i2r=1.0673810002x0.006235285=0.00710282324Cu222144、總損耗標(biāo)么值3-78696055329151E"02YP=P+P+P+P+P=0.05860233546Cu1Cu2Fems145、輸入功率標(biāo)么值145、輸入功率標(biāo)么值1.03786960553292p=1+YP=1.05860233546.9635121740428321.963512174042832146、效率耳=^n= - =0.945p1.05860233546效率差==0.949-0.9446=0.004<0.005I3.48782595716801E-03差值小于0.005,顯然符合迭代精度要求使用提示：本系統(tǒng)可以智能提示如何設(shè)定假定效率值,其中提示所表述的“稍大于”或是“稍小于”，這個(gè)差值一般掌握為0.001?0.005時(shí)效果較好，如果不用這個(gè)差值,直接使用本系統(tǒng)所自動(dòng)修定的效率假定值,通常最多經(jīng)過3次迭代,也就可以達(dá)系統(tǒng)所要求的收斂精度0.005了?？梢阅J(rèn)假定效率值可以取1，幾次也會(huì)收斂。147、功率因數(shù).932568713604541147、功率因數(shù).932568713604541計(jì)算2911Cosq= = =0.9215in1.145817458x0.948

五性能計(jì)算計(jì)算五性能計(jì)算計(jì)算30148、額定運(yùn)行時(shí)的轉(zhuǎn)差率6-04796980988637E-03148、PS= Cu2 =0.00679N1+P+P+P+0.5PCu2mS Fe149、額定轉(zhuǎn)速1509-07195471483n=nG-S=3000x(1-0.00679=2979.6263r/mNsN150、最大轉(zhuǎn)矩對(duì)額定轉(zhuǎn)矩的倍數(shù)2.75863918461423FG-S)(-iX)(1-0.00679)(-0.287541224x0.065222096) c“T=Nm-= =2.976max 2G+X丁29.005967336+0.157756651丿1151、滿壓起動(dòng)時(shí)的起動(dòng)電流5119-67958479571KII= —= =2282.4780AstX+X 0.065222096+0.07466665512St其中，Ks為起動(dòng)時(shí)的飽和系數(shù)。1.3x245.61152、起動(dòng)電流對(duì)額定電流的倍數(shù)