Steady State Dynamic Operating Behavior of Universal Motor

RECEIVED ON 17.03.2014 ACCEPTED ON 16.07.2014 Mehran University Research Journal of Engineering & Technology, Volume 34, No.1, January, 2015 [ISSN 0254-7821] 1 Steady State Dynamic Operating Behavior of Universal Motor m m (t) la  la Te (t) V = Vf + Va La V=Vs+Vf Ra Ra a- M f  If V Lf Rf Lf Tf () J La TL(t) 3 M Eb Ti (t) Rf Mehran University Research Journal of Engineering & Technology, Volume 34, No.1, January, 2015 [ISSN 0254-7821] 2 Steady State Dynamic Operating Behavior of Universal Motor Mehran University Research Journal of Engineering & Technology, Volume 34, No.1, January, 2015 [ISSN 0254-7821] 3 Steady State Dynamic Operating Behavior of Universal Motor Performance characteristics of Universal Motor pt eff Eb 90 Pin 80 70 60 50 40 Parm Pout 30 20 10 0 Torq 0 5 10 15 20 25 30 Speed, omega Tload 35 40 45 Mehran University Research Journal of Engineering & Technology, Volume 34, No.1, January, 2015 [ISSN 0254-7821] 4 50 55 Steady State Dynamic Operating Behavior of Universal Motor Performance characteristics of Universal Motor on AC & DC Supply Voltage V=200 V 90 dc efficiency 80 ac efficiency 70 60 50 40 30 20 ac & dc Torq 10 ac & dc Tload 0 4 6 8 10 12 14 16 18 20 22 24 Current in amperes, ac dotted lines Performance characteristics of Universal Motor on DC Supply Voltage V=200 V 110 dc pf 100 ac pf 90 dc reverse voltage 80 70 60 100 pf ac reverse 50 Performance characteristics of Universal Motor pf voltage 40 Eb 30 Eb dc speed efc 80 20 Pin ac speed 10 I 60 0 4 6 8 10 12 14 16 Current in amperes, dotted ac 18 20 22 24 40 Pin 20 Torq 0 5 I Parm Pout Tload 10 15 20 25 30 35 Speed, omega, rad per second 40 45 50 55 2500 Effect of different fixed loads on Pinac & Pindo of Vac & Vdc supplied Universal Motor ac50 dc pf 100 2000 90 dc reverse voltage ac25 ac reverse voltage 80 dc50 1500 70 dc25 dc current I 60 50 Performance characteristics of Universal Motor 1000 ac0 ac current I dc0 500 40 30 20 0 5 10 15 20 25 30 35 speed, omega, rad per second 40 45 50 55 3.7 3.705 3.71 3.715 3.72 3.725 3.73 3.735 3.74 Time Mehran University Research Journal of Engineering & Technology, Volume 34, No.1, January, 2015 [ISSN 0254-7821] 5 3.745 3.75 Steady State Dynamic Operating Behavior of Universal Motor ac & dc voltage speed on fixed output loads of Universal Motor 100 90 80 70 60 50 dc25 N-m 40 dc50 N-m 30 ac25 N-m 20 10 3.75 ac50 N-m 3.76 3.77 3.78 3.79 3.8 3.81 3.82 3.83 3.84 3.85 Fix Output load Effect on generated torque of ac/dc supply Universal Motor 120 torq for ac50 N-m 100 80 60 torq for ac25 N-m Load torq for dc50 N-m 40 torq for dc25 N-m 20 torq for ac0 N-m torq for dc0 N-m 0 3.9 3.905 3.91 3.915 3.92 3.925 Different torques on ac voltage supply & 25 load 60 50 40 30 20 10 0 -10 -20 -30 0.71 0.715 0.72 0.725 0.73 0.735 0.74 0.745 0.75 Mehran University Research Journal of Engineering & Technology, Volume 34, No.1, January, 2015 [ISSN 0254-7821] 6 0.755 0.76 Steady State Dynamic Operating Behavior of Universal Motor Mehran University Research Journal of Engineering & Technology, Volume 34, No.1, January, 2015 [ISSN 0254-7821] 7 Steady State Dynamic Operating Behavior of Universal Motor Mehran University Research Journal of Engineering & Technology, Volume 34, No.1, January, 2015 [ISSN 0254-7821] 8  (...truncated)