Phần 9 KHÓA ĐÀO TẠO TÍNH TOÁN ỔN ĐỊNH VÀ ỨNG DỤNG TRÊN PHẦN MỀM PSSE CHO KỸ SƯ HỆ THỐNG ĐIỆN (Thực hành lập file mô phỏng và tính toán ổn định trên Phần mềm PSSE)

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TRANSMISSION &
DISTRIBUTION
A Division of Global Power
POWER SYSTEM STABILITY CALCULATION TRAINING
Day
D 4- D
Dynamic Si l ti Principles Part 3
i Simulation P i i l P t

Prepared by: Mohamed El Chehaly

July 9, 2013


2

OUTLINE

• Model Verification
• Performance Verification

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• Dynamic File


DYNAMIC FILE

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3


4

DYNAMIC FILE

Dynamics Model Raw Data File
y
Contents
 A group of logical records that defined the
location of a dynamic equipment model (by bus,
machine, load, dc line…)
 Name of the model used
 Th constant parameters of each model (CON
The
t t
t
f
h
d l
and ICON)

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 Description of DYR file:


5

DYNAMIC FILE

Dynamics Model Raw Data File
y
Contents

 Each record must have the model name
enclosed in single quotes and must be
terminated by a slash (/)
 A record may occupy more than one line in the
file
y pp
y
 Data records may appear in any order
 Text file can be used to write the DYR file

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 Notes regarding the writing of the DYR
file:


6

DYNAMIC FILE

Dynamics Model Raw Data File
y
Contents

1. Assigns storage locations for each model
2. Places the constant parameters associated with
p
each model in the CON and/or ICON arrays
3. Builds the model connection table arrays for
plant-related, load-related, li relay, FACTS
l t l t d l d l t d line l
device, DC line and switched shunt models
4. Builds CONEC and CONET subroutines

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 Activity DYRE:


7

DYNAMIC FILE

Dynamics Model Raw Data File
y
Contents

1. Device models: attached to specific equipments
p
q p
in power flow (models of generators, loads …).
Only one device model per equipment
2.
2 Protection models and models attached to power

flow: more than one model can be attached to an
equipment but not of the same type
3. Miscellaneous model: unattached that may or
may not be associated to an equipment. Several
models can be associated to one equipment
(under/over voltage/frequency generator relays)

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 Dynamic models classified in 3
categories


8

DYNAMIC FILE

Dynamics Model Raw Data File
y
Contents

 BUSID: bus number or name DC line name or
name,
FACTS device name (in single quotes), area,
zone, owner or zero
 ‘model name’: name of the model, limited to
sixteen characters and must be enclosed in
single q
g quotes
 Data list: Constant parameters associated with

the model. Must be specified in the order in
which constants are li t d on th d t sheets
hi h
t t
listed
the data h t

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 General format for categories 1 and 2


9

DYNAMIC FILE

Dynamics Model Raw Data File
y
Contents

 IM: machine ID

 Models associated with loads
 IL: load ID

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 Models associated with plants wind
plants,
machines and induction machines

10

DYNAMIC FILE

Generator Models

 GENROU: Round rotor generator model
 GENSAL: Salient pole generator model

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 GENCLS: Classical generator model


11

DYNAMIC FILE

Classical Generator Model (GENCLS)

 Used for system equivalents or for
infinite bus

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 Simplest generator model

12

DYNAMIC FILE

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Classical Generator Model (GENCLS)

CONs to be
inserted by
user

Format to be
written in
e
DYR file

STATEs used
for
calculation


13

DYNAMIC FILE

Round Rotor Generator (GENROU)

 Used mainly for thermal machines

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 Represent solid rotor generators at the
subtransient level


14

DYNAMIC FILE

CONs to be
inserted by
user

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Round Rotor Generator (GENROU)


15

DYNAMIC FILE

Round Rotor Generator (GENROU)

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STATEs used
for
calculation

Format to be
written in
DYR file


16

DYNAMIC FILE

Salient Pole Generator Model
(GENSAL)

 Used mainly for hydro machines
 Typical time step: ½ cycle at 50 Hz (0.01
sec)

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 Represent salient pole generators at the
subtransient level


17

DYNAMIC FILE

CONs to be
inserted by
user

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Salient Pole Generator Model
(GENSAL)


18

DYNAMIC FILE

Salient Pole Generator Model
(GENSAL)

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STATEs used
for
calculation

Format to be
written in
DYR file


19

DYNAMIC FILE

 Simplified model (SEXS)

 Type DC – Direct current commutater
exciters (IEEEX1)
 Type AC – Alternator-supplied rectifier
excitation systems (
y
(EXAC1)
)
 Type ST – Static excitation systems
(
(EXST1)
)

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Exciter Models


20

DYNAMIC FILE

Simplified Excitation System (SEXS)

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 Useful when detailed design of exciter is
not known


21

DYNAMIC FILE

IEEE Type 1 Excitation System
yp
y
(IEEEX1)

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 Widely used to represent systems with dc
exciters


22

DYNAMIC FILE

IEEE Type AC1 Excitation System
yp
y
(EXAC1)

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 Emulates a field controlled alternator
field-controlled
rectifier excitation system

23

DYNAMIC FILE

IEEE Type ST1 Excitation System
yp
y
(EXST1)

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 Potential source controlled rectifier
rectifierexciter excitation system


24

DYNAMIC FILE

Governor Models
 General model (IEEEG1)

 Steam turbine (TGOV1)
 H d turbine (HYGOV)
Hydro t bi

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 Gas turbine (GAST)

25

DYNAMIC FILE

 IEEE recommended general model for
steam turbine and can approximate the
behavior f h d t bi
b h i of hydro turbine

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IEEE Type 1 Speed-Governing Model
yp
p
g
(IEEEG1)