东南大学《交流电机统一理论》课件第二章

Chapter2ConditionsofElectro-mechanicalEnergyConversionofRotatoryElectricalMachine•–––•––2-1•–mn[]Tnm21uuu+=,...,u[m21iii+=,...,iTnmnm1nmnm111LLLL=++++,,,LKMOML]Tn•Ω++=Ωθ∂∂++=+=EiLRiiLiLRi(Li)Riudtddtddtd•dtdθRdtθdJTTTTTΩ2mecRJmecm++=++=••iLiθ∂∂=tm21TΩ=Ωθ∂∂=ΩEiiLittm2121T•ΩΩΩ+++=++=EiEiiLiRiiEiiLiRiiuitttttttt2121dtddtd•0021dtdavtt=+ΩEiiLi•0•0dtd21avtavt≠−=ΩiLiEi0dtd≠i•1•2–•30•42-2•–––p•NNSSbsmFsmbrmFrmBmFmθsre•–θs–θsr–θsreSbsmFsmbrmFrmBmFmθsre•SbsmFsmbrmFrmBmFmθsressmspBbθ=cos)cos()(cossresrmsrsrmrpBpBbθ+θ=θ+θ=•SbsmFsmbrmFrmBmFmθsre)cos(cossresrmssmrspBpBbbbθ+θ+θ=+=•Dlδ∫µ==v02mmdv2bWW'•)cos(....'srermsm2rm2sm020s20v02mmBB2BB4Dldb4Dldv2bWWθ++µδπ==θµδ=µ==∫∫π•srermsm0sremsrmmBB2DlpWpWTθµδπ−=θ∂∂=θ∂∂=sin''•sremsremsermresmBBBBθ=θ−π=θ=θsin)sin(sinsin•δµ=δµ=rm0rmsm0smFBFB•xBBmsin=Sbτπ==Φ∫τlB2xdxlBm0msinxnN•sesm2msrermsm0mF2pTFF2DlpTθΦπ−=θδπµ−=sinsin•sresmr2msrerms2mF2pTF2pTθΦπ−=θΦπ−=sinsin•–•pspr••)(coscossrsrrmsssmpBpBbθ+θ+θ=)('2rm2sm0mBB4DlW+µδπ=0Tm=•2-3•–2π0Tmθ)(TmTmavθ•2π∫π≠θθπ20m0dT21)(TmTmavθ•–••••••)cos(cosα+Ω=θ==tpMMLLmemrssr•mn)sin(α+Ω−=θ∂∂+θ∂∂=θ∂∂=∑∑∑∑∑∑∑∑======+=+=tpiipMLii21Lii21Lii21Trm1sn1rsmrssm1sn1rrsrrm1sn1rsjkknm1jnm1kjm0••–AB0tpiipMTrm1sn1rsmm≠α+Ω−=∑∑==)sin(tpBtpAiirsΩ+Ω=sincos•Ω=ω±ω±prs•––0r=ωpsω=Ω–•••ps/ωpr/ωΩΩ+ω≡ωpprs//–••00•–1Ωωr–2–3•–––••)(coscosα+Ω+=θ+=tp2LL2LLL2s0se2s0ss2LLLsqsd0s+≈2LLLsqsd2s−≈•LsLs2Ls0•Ms0Ms2Ms)(cos0e2s0ss2MMMθ−θ+=•mn)(sin)(sin)sin('''0esm1snss1ss2sm1s2s2srm1sn1rsmjkknm1jnm1kjmtp2iipMtp2ipLtpiipMLii21Tθ−α+Ω−α+Ω−α+Ω−=θ∂∂=∑∑∑∑∑∑∑=≠====+=+=•––)sin(α+Ω−∑∑==tpiipMrm1sn1rsmΩ=ω±ω±prs•–∑=α+Ω−m1s2s2stp2ipL)(sin)(sin'''0esm1snss1ss2stp2iipMθ−α+Ω−∑∑=≠≠•–Ω=ω±ω±pss'•–•AB0–Ω=ω±pstpBtpAisΩ+Ω=sincos•0Ω=ω±Ω=ω±ω±ppsrs•–Ω=ω±Ω=ω±ω±ppsrs•––––Ω=ωps0r=ωΩ=ω±Ω=ω±ω±ppsrs•––sin2α–α•α90º0•––•2-4•–•––•–se•–sine0–•––•–••Homework•ReviewChapter2–Section2-1~Section2-4•Exercise–2-5,2-6,2-8ThanksThanksalotforyourattention