1AHA044374--

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D:\Projects\Cartegena\Studies\Validation\Micro rec\MSWord\1aha044374_0.doc

CARTEGENA

PTI PSS/E ALSTOM MICROREC K4.1 EXCITATION SYSTEM DYNAMIC MODEL Project Location Plant Type

0

05-04-18

REV

FECHA

: : :

Cartagena Spain 3 x KA26-1

First Issue Description

Chan

Huber

Mesbah

REALIZADO

COMPROBADO

APROBADO

APROBACION FOR I.P. :

Fecha : No CONTRATO

GAS NATURAL SDG, S.A.

PROYECTO

CENTRAL TERMICA DE CICLO COMBINADO DE ESCOMBRERAS 3 x KA26-1 ICC 3 x 397 MW DOCUMENTO

KKS

PTI PSS/E ALSTOM MICROREC K4.1 EXCITATION SYSTEM DYNAMIC MODEL

We reserve all rights in this document and in the information contained therein. Reproduction, use or disclosure to third parties without express authority is strictly forbidden. © ALSTOM Power (Switzerland) Ltd 2005 Form: Spec_english.dot, GCA/2000-07-28

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1AHA044374

Table of Contents: 1.

INTRODUCTION ............................................................................................................................... 4

2.

MODEL APPLICATION AREAS .................................................................................................... 4

3.

MODEL USAGE ................................................................................................................................. 4

4.

MODEL INPUT PARAMETERS ..................................................................................................... 5 4.1. 4.2.

5.

MICROREC K4.1 AVR MODEL................................................................................................. 5 MICROREC K4.1 PSS1A MODEL ........................................................................................... 11

MODEL PARAMETER DESCRIPTION ...................................................................................... 13 5.1. 5.2.

MICROREC K4.1 AVR MODEL............................................................................................... 13 MICROREC K4.1 PSS1A MODEL ........................................................................................... 14

6.

PSS/E DATA INPUT......................................................................................................................... 15

7.

REFERENCES .................................................................................................................................. 15

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REVISION CHECK REV. 0

NAME

DATE

Prepared:

K. Chan

05-04-18

Checked:

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05-04-18

Released:

N. Mesbah

05-04-18

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1AHA044374

INTRODUCTION

This document describes the input parameters and the application of the simplified dynamic model of the ALSTOM MICROREC K4.1 excitation system for the Cartegena KA26-1 ICC singleshaft Combined Cycle Power Plant (CCPP). This model has been implemented using the Power Technologies Inc., PSS/E program.

2.

MODEL APPLICATION AREAS

This model also includes the functionality of the over- and under-excitation limiters. Since this model is only implemented using Laplace transforms it is therefore not suitable for PSS/E extended term simulation that uses Z-transforms modeling.

3.

MODEL USAGE

This excitation system model is implemented as a user defined model in PSS/E. The DSUSR.DLL library must be located in the directory where the PSS/E program is first started. The model calling convention is the same as other PSS/E user defined models as documented in the PROGRAM OPERATION MANUAL: VOLUME 1. An example of data input for this model is shown in the Section 6. Some comments to the model usage are given below: •

• • •

To make a voltage reference step change the parameter VINJ must be set to 1. The parameter INJ_PRRV is the step change to be made and is given in per unit. The time for this step change to be initiated is given by the parameter TINJ. The voltage reference is returned to the initial value after the time indicated by the TRESET parameter. The parameter UPRIN prints out all the STATEs and VARs for each time step on the LPDEV output device if this is set to 1. The Power System Stabilizer (PSS) is automatically turned off when - the electrical power falls below the parameter MINSP1 (in per unit on generator rating). - the stator current falls below the parameter MINST1 (in per unit on generator rating). The Power System Stabilizer (PSS) can be turned off when the parameter PSSON is set to 0.

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4.

MODEL INPUT PARAMETERS

4.1.

MICROREC K4.1 AVR MODEL

Doc.-No.

1AHA044374

MRECK4 MICROREC K4.1 AVR Model SPEED

This model is located at system bus: Machine id This model uses CONs starting with

___ ___ ___

and STATEs starting with

___

and VARs starting with and ICONs starting with

___ ___

CONs

#

J J+1 J+2 J+3 J+4 J+5 J+6 J+7 J+8 J+9 J+10 J+11 J+12 J+13 J+14 J+15 J+16 J+17 J+18 J+19 J+20 J+21 J+22 J+23 J+24 J+25 J+26 J+27 J+28 J+29 J+30 J+31 J+32 J+33

ETERM ITERM

MRECK4 EFD

QELEC PELEC XAIFD

Value

Description

Unit

1.1 0.9 1.8 1.12 0 40.0 3.0 1.0 1.0 1.0 1.0 6.77 -6.77 0.459 0.077 0.8 1.0 0.2 5.15 4.0 1.0 3.38 5.15 0.8 3.23 3.38 34.0 10.0 0.15 1.0 -0.2 10.0 1.1 5.0

MAXCA1 MINCA1 FRMAX GCA2 GCA3 GRV1 TRV2 PRV1 TRV1 TRV6 PRV6 UEXMAX UEXMIN GSE1 GSE2 GSE3 TSE1 PSE1 IFP1 GIE1 TIE1 IFN0 IFN1 MINIE1 MINIE2 MAXIE2 TIE5 TMPIE3 GIE4 TIE2 PIE2 TMPIE1 ISMAX TIS3

p.u. p.u. p.u.

s s s p.u p.u

s p.u p.u s p.u p.u. p.u. p.u p.u s s s p.u. s p.u. s

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J+34 J+35 J+36 J+37 J+38 J+39 J+40 J+41 J+42 J+43 J+44 J+45 J+46

STATEs K K+1 K+2 K+3 K+4 K+5 K+6 K+7 K+8 K+9 K+10 K+11 K+12

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100.0 0.065 0.0 0.08 0.7 16.0 0.7 10.0 0.7 1.6 0.0 0.0 0.0

#

K+13 K+14 K+15 K+16 K+17 K+18 K+19 K+20 K+21 K+22 K+23 K+24 K+25

Description STATE 1 OF UT STATE 2 OF UT STATE 1 OF IST STATE 2 OF IST STATE 1 OF PT STATE 2 OF PT STATE 1 OF QT STATE 2 OF QT STATE 1 OF IF STATE 2 OF IF STATE 1 OF FT STATE 2 OF FT SIGNAL AFTER LAG FILTER TRV1 SIGNAL AFTER LAG FILTER TRV2 STATE OF LEAD/LAG TRV6 UEL AFTER TSE1 SIGNAL AFTER TIE1 SIGNAL AFTER TIE5 INTERNAL USE INTERNAL USE INTERNAL USE INTERNAL USE SIGNAL AFTER INTEGRATOR OEL SIGNAL AFTER INTEGRATOR LIST SIGNAL AFTER 1ST INTEGRATOR TMPIE1 SIGNAL AFTER 2ND INTEGRATOR TMPIE1

TIS4 GIS4 GST1 GST2 KSI1 FC1 KSI2 FC2 KSI3 FC3 INJ_PRRV TINJ TRSET

VARs L L+1 L+2 L+3 L+4 L+5 L+6 L+7 L+8 L+9 L+10 L+11 L+12

Doc.-No.

1AHA044374

s

Hz Hz Hz p.u. s s

#

Description UREF DROOP UEL OEL1 LIST VREFC OEL2 AVRINT INJ_PRRV PR_Q OTD1 OTD2 THRQ

L+13

IFTPSINV

L+14

IFM

L+15 L+16 L+17 L+18 L+19 L+20 L+21

ISAVE1 ISAVE2 TSTART1 TSTART2 VRETOUR IST EFD

ICONs

#

Description

M

VINJ (0 or1) 0

M+1

UPRIN (0 or1) 0

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MICROREC K4.1 AVR – MRECK4

AVR REFERENCE

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VRETOUR

UNDER-EXCITATION LIMITER - UEL

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OVER-EXCITATION LIMITER – OEL1& OEL2

IFTPSINV

IFM

OTD1 THRQ

OTD2

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STATOR CURRENT LIMITER - LIST

DROOP

MEASUREMENT FILTER

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1AHA044374

MICROREC K4.1 PSS1A MODEL MPSS1A MICROREC K4.1 PSS1A Model

This model is located at system bus: Machine id This model uses CONs starting with

___ ___ ___

and STATEs starting with

___

and VARs starting with and ICONs starting with

___ ___

CONs J J+1 J+2 J+3 J+4 J+5 J+6 J+7 J+8 J+9 J+10 J+11 J+12 J+13 J+14 J+15

#

STATEs K K+1 K+2

#

K+3 K+4 K+5 K+6 K+7 K+8

Value 2.0 0.357 0.405 1.0 1.0 1.0 10.0 2.0 1.0 1.0 1.0 0.1 0.7 16.0 0.05 0.15

Description STATE 1 OF PT STATE 2 OF PT SIGNAL AFTER HIGH PASS FILTER TSP6 SIGNAL AFTER LEAD/LAG TSP1 SIGNAL AFTER LEAD/LAG TSP9 STATE 1 OF SECOND ORDER FILTER STATE 2 OF SECOND ORDER FILTER STATE 1 OF IST STATE 2 OF IST

MPSS1A VOTHSG PELEC

Description TSP6 TSP1 PSP1 GSP8 GSP9 TSP9 WSP3 GSP6 GSP7 PSP3 GSP1 PSP5 KSI1 FC1 MINST1 MINSP1

Unit s s

s rad/s

Hz p.u. p.u.

VARs L

#

Description VOTHSG

ICONs

#

Description

M

PSSON (0 or 1) 1

M+1

UPRIN (0 or1) 0

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1AHA044374

MICROREC K4.1 PSS – MPSS1A POWER SYSTEM STABILIZER

MEASUREMENT FILTER

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1AHA044374

Unit p.u.

Proposed settings 1.1

p.u.

0.9

p.u.

1.8

5.

MODEL PARAMETER DESCRIPTION

5.1.

MICROREC K4.1 AVR MODEL Parameter MAXCA1 MINCA1 FRMAX GCA2 GCA3 GRV1 TRV2 PRV1 TRV1 TRV6 PRV6 UEXMAX UEXMIN GSE1 GSE2 GSE3 TSE1 PSE1 IFP1 GIE1 TIE1 IFN0 IFN1 MINIE1 MINIE2 MAXE2 TIE5 TMPIE3 GIE4 TIE2 PIE2

Doc.-No.

Revision:

Description Maximum voltage reference Minimum voltage reference Maximum frequency limitation

1.12

Maximum U/F limitation

0

Minimum U/F limitation

40.0

Main loop proportional gain Integrator time constant

s

1.0

Phase lead-lag high frequency gain Phase lead-lag time constant Voltage feedback time constant

s

1.0

S

1.0 1.0

Voltage feedback high frequency gain Positive ceiling voltage at nominal terminal voltage Negative ceiling voltage at nominal terminal voltage

p.u

6.77

p.u

-6.77 0.459

Limitation set-point at nominal voltage & active power null

0.077

Active power slope coefficient

0.8

Under-excitation limitation proportional gain Under-excitation limitation integral time constant Under-excitation limitation output maximum saturation Ceiling limitation set-point

s

1.0

p.u

0.2

p.u

5.15 4.0

Ceiling limitation proportional gain Ceiling limitation integral time constant Lower thermal limitation set-point Upper thermal limitation set-point Stator voltage threshold for ceiling enabling IFN1 set-point selection threshold IFN1 set-point selection threshold Inverse time set-point elaboration time constant Detection delay

s

1.0

p.u

3.38

p.u.

5.15

p.u.

0.8

p.u

3.23

p.u

3.38

s

34.0

s

10.0 0.15

Thermal limitation gain Thermal limitation time constant Thermal limitation output minimum saturation

3.0

s

1.0

p.u.

-0.2

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Unit s

Proposed settings 10.0

p.u.

1.1

s

5.0

s

100.0

Parameter

Description

TMPIE1

Ceiling enabling duration

ISMAX

Stator current limitation set-point

TIS3

Integral time constant under limitation

TIS4

Integral time constant

GIS4

Gain

GST1

Active compensation gain

GST2

Reactive compensation gain

KSI1

Power, stator voltage and current filtering damping coefficient

FC1

Power, stator voltage and current filtering frequency

KSI2

Field current filtering damping coefficient

FC2

Field current filtering frequency

KSI3

Frequency filtering damping coefficient

FC3

Frequency filtering frequency

INJ_PRRV

Voltage step injection

TINJ

Time of voltage step injection

TRSET

Time for voltage step removal

1.0 0.0 0.08 0.7 Hz

16.0 0.7

Hz

10.0 0.7

Hz

1.6

p.u.

0.0

s

0.0

s

0.0

Unit

Proposed settings

MICROREC K4.1 PSS1A MODEL Parameter

Description

TSP6

High pass filter time constant

s s

2.0

TSP1

Lead-lag filter time constant

PSP1

Lead-lag filter high frequency gain

0.405

GSP8

Lead-lag filter low frequency gain

1.0

GSP9

Lead-lag filter high frequency gain

TSP9

Lead-lag filter time constant

0.357

1.0 s rad/s

1.0

WSP3

Second order filter pulsation frequency

GSP6

Second order filter numerator damping coefficient

2.0

GSP7

Second order filter high frequency gain

1.0

PSP3

Second order filter denominator damping coefficient

1.0

GSP1

PSS gain

PSP5 MINST1 MINSP1

PSS output limitation PSS disable current threshold PSS disable active power threshold

10.0

1.0 p.u. p.u. p.u.

0.1 0.05 0.15

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PSS/E DATA INPUT

Data structure in PTI PSS/E dynamic simulation file is given below. BUSID, ‘USRMDL’., IM, Model, IC, IT, NI, NC, NS, NV, DATA…

Value Value

Model “MRECP4” “MPSS1A”

IC 4 3

IT 0 0

NI 2 2

NC 47 16

NS 26 9

NV 22 1

Example of dynamic input data for the CARTEGENA KA26-1 CCPP – Generator, user models MRECK4, MPSS1A of the excitation system and user model KA2426 of the turbine-governor. 1 'GENROE' G1 6.0900 0.20000E-01 0.57000 0.32000E-01 6.3 0.00000 2.1400 2.0500 0.34000 0.57000 0.27000 0.23000 0.127547 0.270597 / 1 'USRMDL' G1 'MRECK4' 4 0 2 47 26 22 0 0 1.1 0.9 1.8 1.12 0.0 40.0 3.0 1.0 1.0 1.0 1.0 6.77 -6.77 0.459 0.077 0.8 1.0 0.2 5.15 4.0 1.0 3.38 5.15 0.80 3.23 3.38 34.0 10.0 0.15 1.0 -0.2 10.0 1.1 5.0 100.0 0.065 0.0 0.08 0.7 16.0 0.7 10.0 0.7 1.6 0.02 2.0 10.0 / 1 'USRMDL' G1 'MPSS1A' 3 0 2 16 9 1 1 0 2.0 0.357 0.405 1.0 1.00 1.0 10.000 2.0000 1.0000 1.0000 1.000 0.100 0.7000 16.000 0.050 0.15 / 1 'USRMDL' G1 'KA2426' 5 0 4 76 35 35 1 1 1 1 0.5 8.0 50.0 50.0 0.015 0.001 0.015 0.001 106.8 1.0 263.7 20.0 1.0 0.40 1.0 -30.0 4.0 180.0 0.15 0.25 0.60 5.0 5.0 4.0 4.0 4.0 4.0 4.0 3.0 3.5 3.5 0.35 0.35 0.35 0.35 0.35 0.35 0.24 0.24 -0.32 -0.16 -0.08 0 0.05 0.1 0.42 0.4201 0.7 0.7 0.7 0.58 0.7 0.8 1.1 1.1 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 1.1 0.0 0.626 25.0 25.0 9.0 5.0 1.0 0.28 0.51 0.626 0.0 /

7.

REFERENCES

[1] 1-3033-A4-0Z05, “K4.1-AVR TRANSFER FUNCTION DIAGRAM STATIC EXCITATION: CARTEGENA” Rev B. [2] PTI PSS/E Program Manual Version 29.

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