TA的每日心情 | 奋斗 2020-3-3 14:59 |
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PART A: INTRODUCTION 1
3 J4 X' |9 Y: C* t1. Introduction..................................................................................................................3
1 q& N8 k0 ^3 a3 i# `+ t2. pscad components....................................................................................................5
) x8 [% b* B4 E5 [3. Modelled structure.......................................................................................................72 ^- u' d' Y/ Z* y0 }
4. Simulations performed.................................................................................................9$ T/ Z9 a" D7 e' R; E8 h
PART B: BUILD THE MODEL 11/ F0 X$ u/ D9 ` l0 V! N! S1 v
5. From the wind to the Synchronous Generator...........................................................13* T' _4 V9 _; X8 a
5.1 The Wind Source.........................................................................................................142 i; h6 z2 |# G) `4 X/ o
5.2 The wind turbine component.......................................................................................15
3 K) L/ }# j4 Q" v2 k5.2.1 Theoretical study...................................................................................................15* M% g( B' G8 Y; _1 U
5.2.2 Cp curve with PSCAD standard model.................................................................16
2 K8 `( ?) O8 E; g" F V1 i5.2.3 Computation of parameters...................................................................................17
. V' ~0 A3 D/ L( K1 P4 L6 m5.2.4 Define the Wind turbine parameters.....................................................................18
2 y3 u6 r: {- F5.3 Wind turbine governor component..............................................................................19
5 x4 g& E5 Y" f5.3.1 Theoretical study...................................................................................................19& u9 A% s6 y% y# W4 l2 O! |; F
5.3.2 Define the Wind governor parameters..................................................................200 G2 E4 n7 `% m& h4 L8 j
5.4 The synchronous generator.........................................................................................21 D$ q& [3 Q' G) e, R' \; Q
5.5 Turbine generator connection: Simulation at rated load..............................................24
, H6 k$ \1 c" y" @# rSimulation parameters & analysis :......................................................................................24
+ c. s1 Q. b' u# k2 L+ R$ j4 w& F6. AC/DC/AC : Power and Frequency conversion.........................................................27' `6 `' B) R! M, \1 n
6.1 Diode Rectifier.............................................................................................................28
9 n1 I3 a) k3 v Q: h D1 K0 f& r* F6.2 Overvoltage protection................................................................................................30
$ ]/ T& }& |! K' q6.3 DC bus.........................................................................................................................313 m8 M3 G) A' y d
6.3.1 Build the DC bus....................................................................................................319 H4 M: Q. C- F& [
6.3.2 Model validation.....................................................................................................32) @ g6 u& o# o* n, N
6.4 6-Pulse Thyristor inverter............................................................................................34 WIND TURBINE APPLICATIONS PAGE A
0 X0 E3 T3 e& N8 F. mPSCAD®4.02. _/ c( ?5 Z4 T: _( Q: E. ^
Introduction
3 k. z; V* N; @8 x6.4.1 Presentation..........................................................................................................343 z$ l- B* X b% l3 [5 A
6.4.2 Voltage collapse limitation....................................................................................36' Q* `; O4 `1 r$ S$ Q0 ~
6.4.3 Voltage regulation.................................................................................................37+ U8 S9 o4 X/ x9 ]7 I8 w3 T
6.5 Connection to the network..........................................................................................40
0 {4 y5 A% T/ M1 ~% x7 @" S; K1 H7. The distribution grid...................................................................................................43
1 p( Q5 J! a( c, N6 O! H7.1.1 Definition of the grid..............................................................................................43
! t7 B X) w+ S# z3 C! L7 a+ C7.1.2 Load Flow Simulation...........................................................................................47' ?/ d) w1 a& u+ f$ `3 c) p
PART C: SIMULATE 49
r# @# B% n7 I9 Y. N8. Constant Wind Study.................................................................................................51
9 J: @8 T% v* D8.1 Structure the complete model.....................................................................................51+ b1 @4 l/ D6 m. M# F5 Y2 R
8.2 Constant wind study....................................................................................................53
1 _. S$ D7 [9 e4 S; e9. Fault Analysis.............................................................................................................55
( Q& Z; h6 T+ T4 D3 p; F8 _* R% Z! X3 z9.1 Default at Node 3........................................................................................................56
' W! @; w/ u* Q1 s5 X8 D3 A) }9.1.1 Without DG...........................................................................................................56 U0 m3 m; Z. }
9.1.2 With DG connected at node 1..............................................................................574 W0 r8 S7 t/ U
9.2 Default at Node 2........................................................................................................590 r+ R7 y; s& s
9.2.1 Without DG...........................................................................................................591 f. D u: `5 {, _% w
9.2.2 With DG connected at node 3..............................................................................594 K ~5 Z2 s3 ~1 g( Y e* c
9.3 Conclusion..................................................................................................................61; v$ `, k/ x+ X) O( r8 K2 s9 U8 l
10. Variable wind study....................................................................................................63" b3 R/ A$ Q0 \- m* O# n. C
10.1 Dynamic pitch control..................................................................................................63
' h ]. ]+ }2 W2 ^9 L3 p10.2 Passive pitch control simulation..................................................................................670 G) {% G/ B& ^, g/ {+ r* U8 c
10.3 Comparison of passive and dynamic pitch control......................................................691 q0 ]& S* [! \( I, y
11. Wind farm...................................................................................................................71
0 M5 t" {3 f+ n7 X- q# l: Y11.1 From a single wind turbine to a wind farm..................................................................72
8 r) h2 S+ r' k: u4 G* G11.1.1 Change the structure of the model.......................................................................720 _. S- s8 x0 W
11.1.2 Modifications in the synchronous generator.........................................................73
( b. o$ @! C# ?, T11.1.3 Modifications in the transformer...........................................................................745 [9 z. v% j ?9 \( q- M
11.1.4 Modifications in the grid........................................................................................74
M5 S U2 o2 Z$ K- Q0 @11.2 PWM Regulation drives...............................................................................................75
" G- R: h3 j( a/ p. z11.2.1 Principles..............................................................................................................75
/ p1 L; m, {1 q5 ^! `11.2.2 Generation of the triangular waveform.................................................................75
* `6 `# e$ v" _11.2.3 Generation of the reference..................................................................................79) w. L8 ], b _9 j6 i5 ^
11.2.4 Generation of the firing pulses for the GTO inverter............................................83+ ]$ l2 w( y- K$ G# X3 p( `# c
11.3 Simulation 85
0 r8 B ^6 n: J/ O: g! [+ j( ` hPART D: APPENDIX 87
* N, l8 \* C+ e1 X12. References.................................................................................................................89 |
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