Electric Machines and Drives Part 2 docx

... 89.5 7.5 10 88.1 88.7 87 .2 11 15 90 .2 91.0 90 .2 11 15 89.4 898.0 88.7 15 20 90 .2 91.0 90 .2 15 20 90.3 90.6 89.7 18.5 25 91.0 92. 4 91.7 18.5 25 90.9 91 .2 90.4 22 30 91.0 92. 4 91.7 22 30 91.3 91.6 90.9 ... 89.5 15 20 88.7 88.7 87.7 15 20 89.5 90.5 90 .2 18.5 25 89.3 89.3 88.6 18.5 25 89.5 91.0 91.0 22 30 89.9 89.9 89 .2 22 30 90 .2 91.7 91.7 30 40 90.7 90.7 90 .2 3...

Ngày tải lên: 21/06/2014, 01:20

... with compensation. Electric Machines and Drives 20 2 0 10 20 30 40 i DC [A] 0 0.005 0.01 0.015 0. 02 540 550 560 570 580 v DC [V] time [s] Fig. 9. DC-link voltage and current under unbalanced ... power at all times: Electric Machines and Drives 20 6 0 10 20 30 40 i DC [A] 0 0.005 0.01 0.015 0. 02 540 550 560 570 580 v DC [V] time [s] Fig. 21 . DC...

Ngày tải lên: 21/06/2014, 01:20

... standard “Rotating electrical machines – Part 2: Methods for determining losses and efficiency of rotating electrical machinery from tests”. The standard first introduced in 19 72 and updated in ... be obtained from orders@intechweb.org Electric Machines and Drives, Edited by Miroslav Chomat p. cm. ISBN 978-953-307-548-8 ELECTRIC MACHINES AND DRIVES Edited by Mir...

Ngày tải lên: 21/06/2014, 01:20

... with Torque Compensation Electric Machines and Drives 92 0 1 2 3 4 5 6 -20 0 0 20 0 Time [ s ] Speed [ rad/s ] 0 1 2 3 4 5 6 0 0 .2 0.4 Time [ s ] Flux [ Wb ] 0 1 2 3 4 5 6 -10 0 10 Time [ ... θ 0 sin θ 0 cos θ 0  and K =  2 3 ⎡ ⎢ ⎣ 1 − 1 2 − 1 2 0 − √ 3 2 − √ 3 2 ⎤ ⎥ ⎦ . x qd and x αβ stand for two-dimensional voltage flux and stator current vector,...

Ngày tải lên: 21/06/2014, 01:20

... R −1 BPL −1 (θ)= 1 R 1 Δ ⎡ ⎣ L T 12 L  22 L  23 000 000 ⎤ ⎦ ( 42) Q is positive semi-definite if: X T QX ≥ 0 X ∈ 6×1 X T QX = 1 R 1 Δ X T ⎡ ⎣ L T 12 L  22 L  23 000 000 ⎤ ⎦ X (43) = 1 R 1 Δ X T ⎡ ⎢ ⎣ L T 12 1 2 L  22 1 2 L  23 1 2 L T 22 00 1 2 L T 23 00 ⎤ ⎥ ⎦   ... –1008. 1 12 Electric Machines and Drives • Consequence of (27 ) and (28...

Ngày tải lên: 21/06/2014, 01:20

... ω mM , ˆ ω mM (c) ˆ τ ML . 23 0 23 5 24 0 24 5 25 0 25 5 500 1000 1500 t(s) ω mM ref & ω mM (rpm) 23 0 23 5 24 0 24 5 25 0 25 5 500 1000 1500 20 00 25 00 t(s) ω mG (rpm) 24 1.35 24 1.4 24 1.45 24 1.5 24 1.55 2 4 6 t(s) θ G ... Drives 24 1.35 24 1.4 24 1.45 24 1.5 24 1.55 24 1.6 24 1.65 24 1.7 24 1.75 −50 0 50 t(s) v rGa & v rGb (V) 23 0 23 5 24 0...

Ngày tải lên: 21/06/2014, 01:20

... rewritten as: 2 2 22 2 2 e e qm eee e dm losses m qs a ds r qr R dr qf ed f e v v P riririri RR =+++++ (30) The total electrical losses are obtained as follows: 22 22 22 22 2 22 2 2 22 r mqs e ... the electrical parameters converge to machine parameters, even with noise in the currents. R sq R rq L mq L sq 7.07Ω 12. 21Ω 0 .21 50H 0 .24 62H R sd R rd L md L sd 20 .22 Ω 27...

Ngày tải lên: 21/06/2014, 01:20

... mH, R = 0.1 Ω, V dc = 400 V). Electric Machines and Drives 22 2 10 0 S n ⎡ ⎤ = ⎢ ⎥ ⎣ ⎦ (22 ) 1 1 ss ds ds ss qs qs vv S vv ⎡ ⎤⎡⎤ ⎢ ⎥⎢⎥ = ⎢ ⎥⎢⎥ ⎣ ⎦⎣⎦ (23 ) 1 1 1 ss ds ds ss qs qs ii S ii − ⎡ ⎤⎡⎤ ⎢ ⎥⎢⎥ = ⎢ ⎥⎢⎥ ⎣ ⎦⎣⎦ ... Supply, IEEE International Electric Machines and Drives Conference, pp. 357-3 62, ISBN: 978-1- 424 4- 425 1-5, Miami, USA, May 20 09. Chom...

Ngày tải lên: 21/06/2014, 01:20

... 1995): r ds = 2. 02; X ld = 2. 79; X md = 66.8; r qs = 7.14; X lq = 3 .22 ; X mq = 92. 9; r´ r = 4. 12; X´ lr = 2. 12. The total inertia is J = 1.46 × 10 -2 kgm 2 and N sd /N sq = ... noted as 0 C , 2 C , 3 C and 4 C . Their values can be calculated via two variables x and y which are defined as follows: V x V α = (24 ) Electric Machines and Dri...

Ngày tải lên: 21/06/2014, 01:20

... 0 4 t 1 2 t 2 2 t 3 2 t 0 2 t 3 2 t 2 2 t 1 2 t 0 4 t Electric Machines and Drives 25 6 1.1 1.11 1. 12 1.13 1.14 1.15 1.16 1.17 1.18 1.19 1 .2 -40 -30 -20 -10 0 10 20 30 40 ILb Time ... 0.0 02 0.004 0.006 0.008 0.01 0.0 12 0.014 0.016 0.018 0. 02 -300 -20 0 -100 0 100 20 0 300 Time (s) Voltage Magnitude (V) Vc Va Vb -400 -20 0 0 20 0 400 -...

Ngày tải lên: 21/06/2014, 01:20