power systems analysis phần 7 ppsx

three-phase transmission impedance matnx following cormmands tt QO sinngamma+Lengtn sqrtzty; coshgammaxLength; admittance transmission... Substituting approximately wavelength substi

154

Vy+Š—=°

4

l cosh

II

———————

3

ai

t2

x

tị

g

5 a

2 =

Hl

Ỉ

riclabed(r,

zy2abed(z,

iransmission

equivalent

ayperbolic

commands

Exampie

arameters

three-phase

transmission

impedance

matnx

following cormmands

tt

QO

sinn(gamma+Lengtn)

sqrt(zty);

cosh(gammaxLength);

admittance

transmission

+98.36241

Pa

wt-—Br=2%Kr

or

(5.61)

(5.64)

(5.66)

Substituting

approximately

wavelength

substituting

transmission

impedance

approximately

double-circuit

transmission

hyperbolic

T#=cosh

equations

jZ,sin

sending

cos

jZ,

cos

calculation

caleuiations

MATLAB

conditions

equations

open-circutied

capacitive

decreases,

ta

= 74)

3/7

3Vgli

(5.77

VTrated/

(5.78)

(5.79)

(5.80)

10U

10004

88)(1154.72

36.87°)(1073)

H

il

regutation

SE

performance

903.1/ 17.7°

TRANSMISSION

|4|lVal

[fSơ.z3IIYnu~a|

Ss(3e)

JQ5130)

|B|¿80s

Substituting

(5.81)

8

wo

3

790

-

LMOS(SI1)

sin(22

Thus

STL

499.33

From (5.78)

COMPENSATION

SHUNT REACTORS

166

PERFORMANCE

compensation,

168

LINEMODEL

PERFORMANCE

CAPACITOR

COMPENSATION

shntcomp(ABCD)

CAPACITOR

COMPENSATION

characteristics

transmission

capacitor

compensation

b2

tr

a

IVSs(z-

percentage

percentage

compensation

compensation

L000/cos”

170

PERFORMANCE

PERFORMANCE

PROGRAM

approximate

receiving

HENNE

(520)(500)

1.1547/—36.87°

cos(20.044)

cos(21.641°)

3264/10

capacitor

—j576.35

m=——

10002-36.87°

3x288.675/0°

transmussion

efficiency

Tử

PEKFORMANCE

parameters

parameters

-Parameters

(siemens),

Complex

(siemens)

Nominal

constants

Conductor

configuration

dimension

Select

number

dength

frequency

resistance/phase

/unit length,

inductance

jJength,

capacitance

lengta,

conductance

slemens

length

medium

Equivalent

assent

model

4.87414

107.119

§.9638e-07

0.00131631

S1emens

290.496

-6.35214

0.00826172

0.377825

radian

21.6478°

tt

ii

70.00380478

~1:334le—06

70.00126899

70.00230478

program Hstmenu

automatically

loaded

disp.avs

lowing

Transmission

performance

Analysis

calculate

sending

quantities

specified

recelving

PERFORMANCEPROGRAM

calculate

receiving

quantities

specified

sending

calculate

sending

quantities

when

ampedance

specified

Qpen-end

reactive

compensation

Short-circuited

Capacitive

compensation

Receiving

circle

ciagram

Loadability

curve

voltage

profile

numper

receiving

line-iine

voltage

receiving

voltage

receiving

3-phase

recelving

3-phase

reactive

factor)

Lagging

leading

performance

specitisd

recelvin

1154.7

-36.8699°

lagging

623.511

15.5762”

903.113

-i7.6996",

815.404

¡5.4040

Percent

Voltage

Regulation

Transmission

efficiency

-33.6901°,

Regulation

Transmission

efficrency

Wh

performance

21.7842°,

Regulation

Transmission

efficiency

34

tị

D

H

in oe

receiving

3-pnase

receiving

3~phase reactive

lagging

leading

factor)