integration of facts devices into a dynamic power

8/4/2019 Integration of FACTS Devices Into a Dynamic Power

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Integration of FACTS devices into adynamic power system model:

Establishing a unifying framework toincrease the dimensions for powerflow regulation

Thesis Defense Presentation

Hui-hsuan Ting

May 2nd, 2006

Thesis Advisor: Professor Judith Cardell


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Presentation Overview

Background

Project Scope

Static Var Compensator Case Study Interconnected System Model Simulation

Potential FACTS models

Conclusion Reference


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Simple illustration of the power transmission system Power system structure

Dynamics of Large Electric Power Systems

= PGenerator + PLoad + PCompensation

= QGenerator + QLoad + QCompensation

Pi

QiS = P + jQ


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Apparent Complex Power: S = P + jQ

Real Power:

Reactive Power:

sin

2

XVP

)cos1()2/sin(2

X

VIVQ

V voltage

X reactancephase angleI current


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FACTS devices =Flexible Alternating Current Transmission Systemdevices

Direct control of power flow over designatedtransmission routes

Fast Control Technology to overcome limitations

to Power Transfer Capability through rapidresponse

sin

2

X

VP


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Project Scope

Understanding the modeling framework

Methodology for integration of FACTS in theunified system model

Case study: Integrating the SVC model

Potential FACTS device models for integration


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Modeling Framework Key Players

Dynamic Generators

Static Algebraic Transmission System

Inclusion of FACTS Power Electronic Devices

G

lc

extP

XX

Extended State Space Interconnected System Model

uBXAX extextext


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Dynamic Generators

ref

GG

lc PgM

Pt

Tg

r

Tg

Tu

kt

Tu

PtM

Pt

M

Det

tPX

1

0

0

0

0

1

01

0

0

uBPCXAX GMlclclc

G

lc

extP

XX


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G

lc

extP

XX

Static AlgebraicTransmission System

)]sin()cos([|||| jiijjiijjiG bgVVP

)]cos()sin([|||| jiijjiijjiG bgVVQ Linearization assuming

LpGpG

PDKP

0

V

P0

f

Q

0b0g


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k

Gi

lci

ext

b

P

X

XInclusion of FACTS

power electronic devices

New Assumptions:

New Linearized Transmission System Model Equation:

0b0g

LpGpG PDKP gL+bN

pp

Find dynamic FACTS device models

that are based on susceptance (b) or conductance (g)

sin

2

X

VP


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Case Study: Integrating the Static Var

Compensator (SVC) model

))()((1

)( tuKBtBT

tBBBLoL

B

L

)()( tBBtB LCosvc

SVC dynamic Model

cTCRSVC BBB

CL BB

sin2BTCR

l

L

C

C

XB

X

B

1

1


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Structure of the 9-bus network

3 Generators at bus 1, 2, and 3

9 branches

36 simulations, 4 for each branch at four different firing angles


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Generator1-4 3-6 4-5 5-6 8-2 6-7 7-8 8-9 9-4

1 - - -

2

3

gP

gP

gP

gP

gP

gP

gP

gP

gP

gP

gP

gP

gP

gP

gP

gP

gP

gP

gP

gP

gP

gP

gP

gP


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Potential FACTS Models

)(

)()(

tV

titB

Q

Q

Q

))()((1)( tukitiT

ti QQQoQQ

Q STATCOM

)(

1)(

tX

tB

))()((1

)( 0 tukxtxT

tx sssss

s SSC


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Conclusion

The unified modeling framework shows the overalleffect of the whole system due to use of FACTSdevices installed locally.

Control Strategies can be developed by designingthe pattern and timing of the control input signal ofthe dynamic FACTS model, as well as where theFACTS device should be located in thetransmission system.

Impedance based dynamic FACTS device modelsbest serve the purpose of the unified modelingframework.


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Acknowledgements

Professor Judith Cardell

Professor Timothy Doughty

Professor Linda Jones Dawn Scaparotti

Engineering Buddies & The Green Building


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[1]Brennan, Plamer, Martinez, Timothy J, Karen, Salvador. "Implementing Electricy Restructuring: Policies, Potholes, and Prospects." Resources forthe future (2001):

[2]Eidson, Brian, Estimation and Hierarchical Control of Market-driven Electric Power Systems, MIT LEES Technical Report, TR95-009, August 1995.[3]"Making electricity." Tennessee Valley Authority kids.com. Tennessee Valley Authority. 03/20/2006

.[4]Song, Yong Hua, and Allan T Johns. Flexible ac transmission systems (FACTS). London: The institution of electrical Engineers, 1999.[5]Ilic, Marija , and John Zaborszky. Dynamics and Control of Large Electric Power Systems. : John Wiley & Sons, Inc., 2000.[6]Alexander, Charles K. , Matthew N.O Sadiku. Electric Circuits.2nd. Singapore: Mcgraw-Hill, 2004.[7]Crow, Mariesa . Computational Methods for Electric Power Systems. : CRC press, 2003.[8]Shearer, J. Lowen., Kulakowski, Bohdan T., Gardner, John F. Dynamic Modeling and Control of Engineering System. Prentice Hall; 2nd edition ,

February 11, 1997.[9]Tan, Y.L. Analysis of Line Compensation by Shunt-Connected FACTS Controllers: A Comparison between SVC and STATCOM, IEEE Power

Engineering Review, August 1999[10]Canizares, Faur, Claudio A, Zeno T. "Analysis of SVC and TCSC Controllers in Voltage Collapse." IEEE Trans. Power Systems 14(1999):[11]Canizares, Claudio A., Pozzi, S.Corsi, M.0 Modeling and Implementation of TCR and VSI Based FACTS Controllers. Enel Ricerca Area

Trasmissione e Dispacciamento. December 1999.[12]Canizares, Claudio A.,and Kodsi, Sameh KM."IEEE 14 Bus System With FACTS Controllers" Technical Report #2003-3. 2003.[13]Geidl, Martin. Implementation of FACTS and Economic Generation Dispatch in an Interactive Power Flow simulation Platform. ETH Diploma

thesis PSL0201, March 2003.Reference:Berizzi, Alberto., Delfanti, Maurizio., Pasquadibisceglie, Marco Savino. Enhanced security-constrained OPF with FACTS devices. IEEE

Transaction on Power Systems, VOL.20, NO.3. August 2005Cardell, Judith., Ilic, Marija. Maintaining Stability with distributed Generation in a Restructured Industry. IEEE PES GM 2004. 2004Ghandhari, Mehrdad., Hiskens, Ian A. Control Lyapunov Functions for Controllable Series Devices. IEEE Transactions on Power systems,VOL16,

NO4. November, 2001.Hingorani, Narain G. Role of FACTS in a deregulated Market. IEEE Power Engineering Society. 2000Hingorani, Narain G. , and Laszlo Gyugyi. Understanding FACTS: Concepts and Technology of Flexible AC Transmission systems. NJ: IEEE press,

2000.Ilic, Marija d., Liu, Shell. Hierarchical Power Systems Control: Its Value in a changing Industry. Springer Verlag, 1996.Ilic, Marija., Wu, Felix. Research and Applications on Real-time Control of Power Grids: Past Successes and Future Opportunities. Bulk Power

Systems Dynamics and Control VI. August, 2004.Lai, Loi Lei. Power System Restructuring and Deregulation. NY: John Wiley & Sons, 2002.

Myers, Alan. FACTS Overview.IEEE Power Engineering Society 95 TP 108, 1995P. Kundur. Power System Stability and Control. McGraw-Hill, 1994.Padhy, Narayana Prasad. Power flow control and solutions with multiple and multi-type FACTS devices Electric Power Systems Research 74.

2005Saccomanno, Fabio. Electric Power Systems: Analysis and Control. NJ: John Wiley & Sons, 2003.Sen, Kalyan K. SSSC Static Synchronous Series Compensator: Theory, Modeling, and Applications. IEEE Transactions on Power Delivery,

VOL13, NO.1. January 1998.Shahidhpour, Mohammad, and Yaoyu Wang. Communication and Control in Electric Power systems. NJ: John wiley & Sons, 2003.Wu, Wei. FACTS Applications in Preventing Loop Flows in Interconnected Systems. IEEE Power Engineering Society General Meeting:

conference proceedings:13-17. 2003

Reference


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0 10 20 30 40 50 60 70 80 90 100-500

0

500

1000

B

alpha

0 100 200 300 400 500 600 700 800 900 10000

50

100

alpha

time

0 10 20 30 40 50 60 70 80 90 100-500

0

500

1000

B

alpha

0 10 20 30 40 50 60 70 80 90 1000

50

100

alpha

time

0 10 20 30 40 50 60 70 80 90 100-500

0

500

1000

B

alpha

0 1 2 3 4 5 6 7 8 9 100

50

100

alpha

time

0 10 20 30 40 50 60 70 80 90 100-500

0

500

1000

B

alpha

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.10

50

100

alpha

time

Tc = 1degree alpha per second,alpha ~ 10 degrees

Tc =0.1degree alpha persecond, alpha ~ 1 degrees

Tc = 10degree alpha per second,alpha ~ 80+ degrees

Tc = 100, exceed

maximum limit of alpha

integration of facts devices into a dynamic power

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