Fundamentals of Electrical Drivess - Chapter 7 pps

... physically Chapter 7 INTRODUCTION TO ELECTRICAL MACHINES 7. 1 Introduction This chapter considers the basic working principles of the so-called ‘clas- sical’ set of machines. This set of machines ... given in figure 7. 10 which corre- sponds to machine configurations discussed in this section. The diagram shows 174 FUNDAMENTALS OF ELECTRICAL DRIVES (a) IRTF-flux (b) IRTF-c...

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... MATLAB 74 FUNDAMENTALS OF ELECTRICAL DRIVES S COPE1GAI 0.0998 GAI 0.02 i 1 i RM i 2 i M @' 2 i 11 u 1/50 u 2/10 u 1 @ 2 @ 1 i' 2 -1 2.282 -4 2.855m -3 3.689 11.182m 118 .75 5m -1 2.239 -1 8.668 ... (short-circuit, U 2 =8V) 7. 27 0 Simulation (R L = 10Ω, U 1 =660V) 8 .70 238.4 Experimental (R L = 10Ω, U 1 =660V) - - is good agreement between the data...

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... Heidelberg Printed on acid-free paper SPIN: 1 176 0481 62/techbooks 543210 1-4 02 0-5 50 4-8 ebook 97 8-1 -4 02 0-5 50 4-1 ebook Springer20 07 ISBN-10 () ( ) (HB) (HB) ISBN-10 1-4 02 0-5 503-X ISBN-13 97 8-1 -4 02 0-5 50 3-4 ... VA p -number of pole pairs PI -proportional-integral PWM -pulse width modulation Q -reactive power VA R -resistance Ω R -reluctance A...

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... variables A_c=10e-3*10e-3; % cross-section of core and armature 10mm x10 mm A_a=10e-3*10e-3; % assumed cross-section of airgap g=10e-3; % distance (airgap) between armature and C core mu_c=0.64 /79 .58; ... ring of width ‘h’ placed on the middle of the airgap at radius r + g/2. An observation of figure 1. 17 learns that the flux crossing the airgap has a larger cross-sectional 10 FU...

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... angle of the flux phasor are now ˆ ψ = ˆu   R L  2 + ω 2 (2.17a) ρ ψ = −arctan  ωL R  (2.17b) 32 FUNDAMENTALS OF ELECTRICAL DRIVES 2.3 Coil resistance In practical situations the resistance of ...  ∆ψ =  t0 0 u(t)dt (2 .7) introducing the concept of ‘incremental flux-linkage’ ∆ψ = ψ(t)−ψ(0) which is fundamental to the control of electrical drives. The equation basically...

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... duplicated three times, as shown in figure 4 .7. Note that the three-phase R-L model shown Figure 4 .7. Generic three-phase R-L model in figure 4 .7 is a simplified representation of an AC machine. In reality, mutual coupling ... (A)’) hold on 100 FUNDAMENTALS OF ELECTRICAL DRIVES Figure 4. 27. Generic, space vector based, model of three-phase R-L circuit (delta connected) was and is...

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... SCOPE5 SCOPE4 SCOPE1 SCOPE3 B_S + - i p c u c i p L u L i u c u L u s i p s u s i u c u L 10 ground -9 89.810u -1 581.294n 15 97. 573 u -9 89.810u -9 896.523u 9.998 -9 89.810u 15 97. 573 u 9.998 10.000 -9 89.810u -9 898.102u 10.000 -9 89.810u 15 97. 573 u 9.998 0 [Volt] Figure 5.16. ... FUNDAMENTALS OF ELECTRICAL DRIVES m-file Tutorial 3, chapter...

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... 451.833m 451.833m 9.088 9.901 9 37. 717m 78 2.597m 9 37. 717m Figure 6.19. Caspoc simulation: transformer with resistive load 6.4.6 Tutorial 6 The aim of this tutorial is to undertake a phasor ... 166 FUNDAMENTALS OF ELECTRICAL DRIVES SCOPE2 SCOPE1 u 1 i 2S U 1 @ 2D i 2D 0 i 2S i 1 @ 2S 0 @ 2S i 1 i 2D @ 1 @ 2D @ 1 381.051 17. 148 220.000 78 2.597m 9.901 17....

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... ρ m ◦ 0.5 0.60 373 .06 -5 3.13 0 .75 0.42 241 .73 -3 2.23 1.0 0.30 130.96 -2 3.58 1.25 0.23 25.81 -1 8.66 1.50 0.26 -7 6.84 -1 5. 47 1 .75 0.35 -1 78 .16 -1 3.21 2.00 0. 47 -2 78 .66 -1 1.54 2.25 0.60 -3 78 .62 -1 0.24 Build ... (deg) rhoM=[0 -5 .74 -1 1.54 -1 7. 46 -2 3.58 -3 0.00 -3 6. 87 -4 4.43 -5 3.13 -6 4.16 -8 9.29...

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... 16.68 476 0.36 10299. 87 83.41 200 878 .93 17. 17 15.94 5393.19 9408.48 79 .72 100 1301.94 18.83 14.94 5916.81 8263.42 74 .71 70 1590.66 19.68 13.91 6182. 47 7166.30 69. 57 60 172 6.55 19. 87 13.29 6243.31 ... 4 375 .32 2609.29 1426.96]; Qs3=[10299. 87 9408.48 8263.42 71 66.30 6539.08 5690.40 3216.46 178 6.92 570 .73 165.08]; ER3=[83.41 79 .72 74 .71 69. 57 66.46 62.00 46.61...

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