Electric Machines and Drives Part 1 pot

... 34-2 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 ... awaited for December 2 010 . So, 1 –200 HP general purpose motors already covered by EPAct will change from NEMA MG -1, Table 12 -11 Energy Efficient (Annex 1) to Table 12 -12 N...

Ngày tải lên: 21/06/2014, 01:20

... Electronics, 2009. IECON ’09. 35th Annual Conference of IEEE, pp. 10 03 10 08. 16 0 Electric Machines and Drives Electric Machines and Drives 16 8 Are all possible operating conditions optimized varying ... currents. Figures 11 and 12 shows the transient currents from axis q and d, respectively, while Figures 13 and 14 shows the steady-state currents from axis...

Ngày tải lên: 21/06/2014, 01:20

... 0 V 0 0 0 0 0 1 V 1 0 0 E 0 2 V 1 1 0 E E 3 V 0 1 0 0 E 4 V 0 1 1 -E 0 5 V 0 0 1 -E -E 6 V 1 0 1 0 -E 7 V 1 1 1 0 0 Table 1. Switching states and the adjacent vectors amplitude. ... form: 11 1 1 111 1 0 01 010 aaa a Ds Ds Ds Ds s a aaa a s Qs Qs Qs Qs vi r d r dt vi λλ ω λλ ⎡ ⎤⎡⎤⎡⎤ ⎡⎤ − ⎡⎤ ⎡ ⎤ ⎢ ⎥⎢⎥⎢⎥ ⎢⎥ =++ ⎢⎥ ⎢ ⎥ ⎢ ⎥⎢⎥⎢⎥ ⎢⎥ ⎣⎦ ⎣ ⎦ ⎣ ⎦⎣⎦⎣⎦ ⎣⎦...

Ngày tải lên: 21/06/2014, 01:20

... 8 V 11 10 7 V 11 00 5 V 10 00 ≥ ≥ ≥ 3 T 3 V 010 0 7 V 11 00 15 V 11 01 ≥ ≥ ≺ 4 T 15 V 11 01 11 V 010 1 3 V 010 0 ≺ ≥ ≺ 15 T 9 V 00 01 11 V 010 1 15 V 11 01 ≺ ≺ ≺ 2 P 16 T 8 V 11 10 7 V 11 00 3 V ... 2 V 0 010 4 V 011 0 12 V 011 1 ≺ ≥ ≥ 8 T 12 V 011 1 10 V 0 011 2 V 0 010 ≺ ≺ ≥ 19 T 9 V 00 01 10 V 0 011 12 V 011 1 ≺ ≺ ≺ 4 P...

Ngày tải lên: 21/06/2014, 01:20

... 88.5 91 90.2 89.5 91. 7 91 10 89.5 91. 7 91. 7 90.2 91. 7 91 15 90.2 93 91. 7 91 92.4 91. 7 20 91 93 92.4 91 93 91. 7 25 91. 7 93.6 93 91. 7 93.6 93 30 91. 7 94 .1 93.6 91. 7 93.6 93 40 92.4 94 .1 94 .1 92.4 ... 94 .1 110 15 0 93.0 93.0 92.9 11 0 15 0 94 .1 94.5 94 .1 132 17 5 93.3 93.3 93.3 15 0 200 94 .1 94.5 94 .1 160 215 93.5 93.5 93.5 18 5 250 94 .1 94.5 94 .1 200 2...

Ngày tải lên: 21/06/2014, 01:20

... (Krause, 19 86) and (Leonhard, 19 96) according to the fifth-order model, as d dt I qs = −a 12 I qs −ω s I ds + a 13 a 11 λ qr − a 13 Nωλ dr + a 14 V qs (1) d dt I ds = −a 12 I ds + ω s I qs + a 13 a 11 λ dr + ... flux and speed estimation algorithm is axis − e G * r Ψ G r axis − ψ G ζ ζ 1 1 * r s τ + Ψ G () {} 1 rm L/L s τ τ + e G 1 1 * r s τ + Ψ G r ˆ ψ G s i Z...

Ngày tải lên: 21/06/2014, 01:20

... L 2 mG ]I 2 ⎤ ⎦ (9)  1 Δ ⎡ ⎢ ⎣ L  11 L  12 L  13 L T 12 L  22 L  23 L T 11 L T 23 L  33 ⎤ ⎥ ⎦ (10 ) where Δ = L rG [L rM (L sG + L sM ) − L 2 mM ] − L rM L 2 mG < 0 (11 ) We recall that, ... 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 ...

Ngày tải lên: 21/06/2014, 01:20

... 204 500 10 00 15 00 (a) t(s) ω mM ref & ω mM (rpm) 18 4 18 6 18 8 19 0 19 2 19 4 19 6 19 8 200 202 204 10 00 2000 3000 (b) t(s) ω mG (rpm) 19 3.74 19 3.76 19 3.78 19 3.8 19 3.82 19 3.84 19 3.86 19 3.88 19 3.9 19 3.92 19 3.94 2 4 6 (c) ... i d sb , i sb . 19 3.74 19 3.76 19 3.78 19 3.8 19 3.82 19 3.84 19 3.86 19 3.88 19 3.9 19 3.92 19 3.94 15 10 −5 0 5...

Ngày tải lên: 21/06/2014, 01:20

... with compensation. Electric Machines and Drives 204 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. 15 . DC-link voltage and current under unbalanced ... voltage and current under unbalanced voltage supply without compensation. Electric Machines and Drives 19 6 (Stankovic & Lipo, 20 01; Lee et al., 2006;...

Ngày tải lên: 21/06/2014, 01:20

... 1. 1 1. 11 1 .12 1. 13 1. 14 1. 15 1. 16 1. 17 1. 18 1. 19 1. 2 -50 0 50 ILa Time (s) 1. 1 1. 11 1 .12 1. 13 1. 14 1. 15 1. 16 1. 17 1. 18 1. 19 1. 2 -30 -20 -10 0 10 20 30 Iaref Time (s) 1. 1 1. 11 1 .12 1. 13 1. 14 1. 15 ... 1. 2 -15 -10 -5 0 5 10 15 Ifref Time (s) 1. 1 1. 11 1 .12 1. 13 1. 14 1. 15 1. 16 1. 17 1. 18 1. 19 1. 2 -1. 5 -1...

Ngày tải lên: 21/06/2014, 01:20