Abstract
Due to the lack of damping torque, power system disturbances such as step changes in input mechanical power, may lead to Low Frequency Oscillations (LFO). Power System Stabilizer (PSS) is a solution that has been used for many years in order to mitigate these oscillations. Flexible AC Transmission Systems (FACTs) is another solution for this problem. Among the FACTs devices, Unified Power Flow Controller (UPFC) has an excellent ability to control power flow, reduce sub-synchronous resonance, and increase transient and dynamic stability and therefore, may be used instead of PSS. In this paper, a Genetic Algorithm Optimized Fuzzy Logic Controller (GA-FLC) is used to control UPFC for damping low frequency oscillations. This study is applied to a single-machine infinite-bus (SMIB) PhillipsHeffron model by using MATLAB ® / Simulink ® software. Simulation results explicitly show that the performance of the proposed GA-FLC Based UPFC is better than using PSS and a PI controlled UPFC in terms of damping LFO.
| Original language | English |
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| Title of host publication | 22nd Iranian Conference on Electrical Engineering, ICEE 2014 |
| Place of Publication | Piscataway |
| Publisher | Institute of Electrical and Electronics Engineers |
| Pages | 706-712 |
| Number of pages | 7 |
| ISBN (Electronic) | 9781479944095 |
| DOIs | |
| Publication status | Published - 20 May 2014 |
| Externally published | Yes |
| Event | 22nd Iranian Conference on Electrical Engineering, ICEE 2014 - Tehran, Iran, Islamic Republic of Duration: 20 May 2014 → 22 May 2014 |
Conference
| Conference | 22nd Iranian Conference on Electrical Engineering, ICEE 2014 |
|---|---|
| Country/Territory | Iran, Islamic Republic of |
| City | Tehran |
| Period | 20/05/14 → 22/05/14 |
Keywords
- Flexible AC Transmission Systems (FACTS)
- GA-Optimized Fuzzy controller (GA-FLC)
- Low Frequency Oscillations (LFO)
- Single Machine-Infinite Bus (SMIB)
- Unified Power Flow Controller (UPFC)