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Simulink-based programs for power system dynamic analysis

  • Ismael AbdulrahmanEmail author
  • Ghadir Radman
Original Paper
  • 35 Downloads

Abstract

This paper introduces Simulink-based programs developed for dynamic analysis of electrical power systems. The program can be used for research studies or as a teaching tool. With the program, time-domain simulation, modal analysis, participation factor analysis and visualization, frequency response analysis, and design of conventional and intelligent controllers can be obtained. A special case of constant impedance load is also studied. IEEE 9-bus, IEEE 68-bus, Texas 2007-bus 282-machine, and the 25,000-bus northeastern US test systems are employed in this paper. The synchronous machines are assumed to be equipped with exciter, turbine, and stabilizer. Static var compensator is added using conventional and adaptive neuro-fuzzy controllers. Different types of disturbances are applied to the systems including generator-side and network-side disturbances. The program is free of algebraic loops that may increase the errors and slow down the simulation. All blocks and signals in the Simulink model are in vector form that can be used to simulate a power system of any size.

Keywords

Dynamic analysis of multi-machine power system Differential algebraic equations MATLAB Simulink 

Abbreviation

Rs

Stator resistance in pu

Xd

d-axis reactance in pu

\( X_{d}^{{\prime }} \)

Transient d-axis reactance in pu

\( X_{d}^{{\prime \prime }} \)

Sub-transient d-axis reactance in pu

Xq

q-axis reactance in pu

\( X_{q}^{{\prime }} \)

Transient q-axis reactance in pu

\( X_{q}^{{\prime \prime }} \)

Sub-transient q-axis reactance in pu

H

Shaft inertia constant in second

ws

Generator synchronous speed in rad per second

Tdo

d-axis time constant associated with \( E_{q}^{{\prime }} \) in second

Tdo

d-axis time constant associated with \( \varPsi_{1d} \) in second

Tqo

q-axis time constant associated with \( E_{d}^{{\prime }} \) in second

Tqo

q-axis time constant associated with \( \varPsi_{2q} \) in second

TA

Amplifier time constant in second

TCH

Incremental steam chest time constant in second

TSV

Steam valve time constant in second

KA

Amplifier gain

KE

Separate or self-excited constant

\( E_{q}^{{\prime }} \)

q-axis transient internal voltages in pu

\( E_{d}^{{\prime }} \)

d-axis transient internal voltages in pu

E

Internal voltage in pu

\( \varPsi_{1d} \)

Damper winding 1d flux linkages in pu

\( \varPsi_{2q} \)

Damper winding 2q flux linkages in pu

δ

Rotor angle in rad

w

Angular speed of generator in rad per second

V

Magnitude of bus voltage in pu

θ

Angle of bus voltage in rad

IGi

Generator current magnitude in pu

Id

d-axis current in pu

Iq

q-axis current in pu

Efd

Field voltage in pu

VR

Exciter input in pu

RF

Rate feedback in pu

TM

Mechanical input torque in pu

PSV

Steam valve position in pu

RC

Control power input in pu

RD

Speed regulation quantity in Hz/pu

Vref

Reference voltage input in pu

SE

Saturation function

TFW

Frictional windage torques

Notes

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Electrical and Computer EngineeringTennessee Technological UniversityCookevilleUSA

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