Power System Stability Optimization Using Proportional-Integral-Derivative (PID) Controller
  • Author(s): Uju, I.U. ; Atuchukwu, A.J ; Ekeopara, O.E.
  • Paper ID: 1702638
  • Page: 158-165
  • Published Date: 28-04-2021
  • Published In: Iconic Research And Engineering Journals
  • Publisher: IRE Journals
  • e-ISSN: 2456-8880
  • Volume/Issue: Volume 4 Issue 10 April-2021
Abstract

Instability has become an issue of concern in the operation of power system due to the increasing stress on power system networks. The system suffering from incessant power failure as a result of fault on either the generating plants or on the transmission lines is adversely affecting the economic growth of the country. Most stability improvement techniques carried out in Nigeria were based only on the load flow, transformer tap changer, reactors and power loss reduction which have not been effective. In order to solve these problem of instability caused by low frequency oscillation in power system, Proportional Integral Derivative (PID) controller with Power System Stabilizer (PSS) was proposed in this work for the stability optimization of the power system. The analysis of the PSS in this work was based on the parameters of the PSS tuned using the four methods: CPSS, PSO, ICA and Generic. The performance improvement was carried out through simulation in MATLAB. The first stage of simulation was to examine the damping capability of the PSS without any external technique such that the system will be stable. Secondly, with external technique. From available results, all the PID controlled plants recorded improved performance and stability characteristics except the Generic-PID which recorded very high settling time of 1.03e+4 seconds and overshoot of 74%. However, all the PID controlled plant were stable. The ICA-PID achieved best performance and stability improvement characteristics with settling time of 0.0478seconds, overshoot of 4.4%, and phase margin of 67.6 degrees. So, ICA-PID controller is recommended for power system stability robustness.

Keywords

Power System Stability, Optimization, Power System Stabilizer (PSS), Proportional Integral Derivative Controller (PID), Low Frequency Oscillation, Damping

Citations

IRE Journals:
Uju, I.U. , Atuchukwu, A.J , Ekeopara, O.E. "Power System Stability Optimization Using Proportional-Integral-Derivative (PID) Controller" Iconic Research And Engineering Journals Volume 4 Issue 10 2021 Page 158-165

IEEE:
Uju, I.U. , Atuchukwu, A.J , Ekeopara, O.E. "Power System Stability Optimization Using Proportional-Integral-Derivative (PID) Controller" Iconic Research And Engineering Journals, 4(10)