3.kendali motor induksi-edit
DESCRIPTION
membahas tentang kendali kendali pada motor induksiTRANSCRIPT
![Page 1: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/1.jpg)
Kendali Motor Induksi
![Page 2: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/2.jpg)
Pendahuluan
• Kecepatan motor induksi sebagai fungsi slip, frekuensi dan jumlah kutub:
![Page 3: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/3.jpg)
1. Kontrol tegangan stator
• Rangkaian daya dan gate.Menghubung seri saklar daya pada motor induksi, tegangan dapat di atur dengan mengatur signal gate dari saklar daya.
![Page 4: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/4.jpg)
• Kontrol membalik arah putaran.
CW: T1 T2 T3 T4 T5 T6
![Page 5: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/5.jpg)
• Kontrol membalik arah putaran.
CW: T1 T2 T3 T4 T5 T6 CCW: T1 T2r T3r T4 T5r T6r
![Page 6: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/6.jpg)
Gelombang tegangan dan arus
![Page 7: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/7.jpg)
Persamaan Steady State
• Persamaan torka elektromagnetik:
![Page 8: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/8.jpg)
![Page 9: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/9.jpg)
Interaksi dengan beban
![Page 10: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/10.jpg)
![Page 11: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/11.jpg)
• Karakteristrik torka-kecepatan dengan kontrol fasa
![Page 12: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/12.jpg)
![Page 13: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/13.jpg)
![Page 14: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/14.jpg)
![Page 15: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/15.jpg)
Contoh
• Sebuah motor dikontrol untuk range kecepatan 0,45 hingga 0,8 dari beban penuh untuk sistem penggerak pompa. Parameter motor adalah sbb:150 hp, 460 V, 3 ph, 60 Hz, 4 kutub, hubungan Y, Rs = 0,03 Ω, Rr = 0,22 Ω, Xm = 10 Ω, Xls = 0,1 Ω, Xlr = 0,12 Ω, slip beban penuh = 0,1477, rugi-rugi gesek dan angin = (0,01ωm + 0,0005 ωm
2) (Nm)
Konstanta beban pompa, Bl = 0,027 Nm/(rad/sec)2. Tentukanlah range sudut triger kontrol fasa yang dibutuhkan untuk memperoleh perubahan kecepatan.
![Page 16: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/16.jpg)
• α1 = 0,8 pu dan α2 = 0,45 pu.• Persamaan kecepatan nominal :
Untuk kecepatan 0,8 pu (ωm1 = 128,5 rad/sec),
Torka =
Untuk kecepatan 0,45 pu (ωm2 = 72,3 rad/sec),
Torka =
![Page 17: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/17.jpg)
![Page 18: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/18.jpg)
2. Slip recovery energy
![Page 19: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/19.jpg)
![Page 20: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/20.jpg)
3. Pengaturan frekuensi
• Direct frequency
![Page 21: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/21.jpg)
• Indirect frequency
![Page 22: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/22.jpg)
![Page 23: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/23.jpg)
![Page 24: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/24.jpg)
![Page 25: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/25.jpg)
Klasifikasi pengaturan frekuensi
![Page 26: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/26.jpg)
Inverter sumber tegangan
Inverter sumber tegangan setengah jembatan
![Page 27: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/27.jpg)
Inverter sumber tegangan setengah jembatan (komutasi)
![Page 28: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/28.jpg)
Inverter sumber tegangan jembatan penuh
![Page 29: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/29.jpg)
Inverter sumber tegangan dengan transistor
![Page 30: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/30.jpg)
Gelombang tegangan
![Page 31: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/31.jpg)
![Page 32: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/32.jpg)
• Daya aktif:
• Daya reaktif:
• Pengaturan kecepatan:
![Page 33: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/33.jpg)
• Strategi kontrol:
![Page 34: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/34.jpg)
• Persamaan tegangan
per-unit:
![Page 35: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/35.jpg)
![Page 36: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/36.jpg)
• Hubungan antara tegangan fasa dan frekuensi:
• Bentuk normalisasi:
![Page 37: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/37.jpg)
![Page 38: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/38.jpg)
![Page 39: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/39.jpg)
![Page 40: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/40.jpg)
Closed loop
![Page 41: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/41.jpg)
contoh
• Tentukanlah hubungan antara tegangan dc dan frekuensi stator untuk implementasi closed loop penggerak Volt/Hz motor induksi. Parameter motor sbb:
• 5 HP, 200 V, 60 Hz, 3 phasa, hubungan Y, 4 kutub, pf = 0,86, efisensi = 0,82.
• Rs = 0,277 Ω, Rr = 0,183 Ω, Xm = 20,3 Ω, Xls = 0,554 Ω, Xlr = 0,841 Ω.
![Page 42: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/42.jpg)
• Jawab:
![Page 43: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/43.jpg)
![Page 44: 3.Kendali Motor Induksi-EDIT](https://reader036.vdocuments.pub/reader036/viewer/2022062308/563dbb70550346aa9aad2e13/html5/thumbnails/44.jpg)