OPTIMAL TUNING OF UNIFIED POWER FLOW CONTROLLER USING FIREFLY ALGORITHM TO IMPROVE DAMPING OF INTER-AREA OSCILLATIONS IN MULTI-MACHINE SYSTEM
Inter-Area Oscillations is a challenge in the interconnection system that affects the stability of the power system. Conventional Power System Stabilizer (PSS) used to reduce small signal oscillations has limitations in Inter-Area Oscillations. Therefore, in this thesis, a Unified Power Flow Cont...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/48096 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Inter-Area Oscillations is a challenge in the interconnection system that affects the
stability of the power system. Conventional Power System Stabilizer (PSS) used
to reduce small signal oscillations has limitations in Inter-Area Oscillations.
Therefore, in this thesis, a Unified Power Flow Controller (UPFC) damping
control scheme is introduced. The control parameters of UPFC-based PI
Controllers are tuned with the Firefly Algorithm to increase the damping of InterArea Oscillations in a multi-machine system. The performance will be compared
with PSS-UPFC, which is optimized using CRPSO from the literature. Firefly
Algorithm is also used to present coordinated tuning between PSS-UPFC, and the
results will be compared with systems that use PSS or UPFC only, in which the
parameters have also been optimized. Based on load changes and three-phase fault
simulation, the proposed UPFC-Based PI Controller is proven to be able to
increase the eigenvalues of the system under different conditions and provides
better results in time-domain analysis, by reducing overshoot, acceleration settling
time, and minimizing graph area. |
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