POWER SYSTEM PERFORMANCE ENHANCEMENT USING SUPERCONDUCTING MAGNETIC ENERGY STORAGE UNIT AND PROPORTIONAL INTEGRAL DERIVATIVE CONTROL
Frequency oscillations in power systems may occur due to sudden load change or system disturbance. Such oscillations may result in unsynchronized and undamped signals. In a multi machine system where all generators must operate in synchronism, undamped oscillations may lead to instability. To ove...
Saved in:
| Main Author: | |
|---|---|
| Format: | Theses |
| Language: | Indonesia |
| Subjects: | |
| Online Access: | https://digilib.itb.ac.id/gdl/view/69576 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Frequency oscillations in power systems may occur due to sudden load change or
system disturbance. Such oscillations may result in unsynchronized and undamped
signals. In a multi machine system where all generators must operate in
synchronism, undamped oscillations may lead to instability. To overcome this
issue, this paper proposes a damping control scheme consisting of superconducting
magnetic energy storage (SMES) and proportional integral differential (PID)
controller to effectively damp frequency oscillations in multi-machine systems.
Control parameters of the proposed SMES-PID system are tuned using particle
swarm optimization (PSO) algorithm. Simulation results reveal the effectiveness of
the proposed controller in damping the frequency oscillations and maintain system
dynamic and transient stability during various disturbance events. It is shown by
simulation results that PID controller and SMES design can find better quality
solution in minimizing overshoot at frequency variations up to 78 % and
accelerating the settling time up to 67 %. The selection of SMES coil size must be
carefully considered due to its high cost. From the simulation results, the SMES
coil size of 0.2 H and 2 H are of similar damping effect on power system
oscillations. |
|---|