Transmission Line Loss Minimization and Improvement of Voltage Profile Using Unified Power Flow Controller (Case Study: Eastern Region of Ethiopia)
| dc.contributor.advisor | Mengesha, Mamo (PhD) | |
| dc.contributor.author | Worku, Abera | |
| dc.date.accessioned | 2020-01-23T08:33:37Z | |
| dc.date.accessioned | 2023-11-28T14:26:39Z | |
| dc.date.available | 2020-01-23T08:33:37Z | |
| dc.date.available | 2023-11-28T14:26:39Z | |
| dc.date.issued | 2019-07 | |
| dc.description.abstract | Electrical power system is very complex and it requires very careful design of new equipment’s which are needed to improve electric power utilization, enhancing power system stability, power loss minimization and power transfer capability. The existing power transmission network of Ethiopia consists of 45kV, 66kV, 132kV, 230kV and 400kV lines. This thesis mainly focused on 132kV transmission line of Eastern region of Ethiopia. Transmission Line loss minimization and voltage profile improvement in the transmission line are challenging problems. This thesis analyze the impact of using unified power flow controller (UPFC) in the transmission line. The UPFC is the most versatile and complex power electronics equipment’s that has emerged for control and optimization of power flow in electric power transmission systems. It is a combination of series and parallel compensation and can therefore provide active and reactive control to achieve maximum power transfer, system stability, and voltage profile improvement and minimize transmission line loss. Unified Power Flow Controller is designed for the transmission line to increase power transfer capability, reduce power loss and improve voltage profile. The UPFC has been simulated using DIgSILENT Power Factory Software. The simulation results showed that all the bus voltages are within acceptable limit which is above 0.95p.u. After incorporating the UPFC the total active power loss is reduced from 4.295MW to 1.908, from 2.387MW to 1.306MW and from 1.166MW to 0.454MW for peak load condition, average load condition and minimum load condition respectively. The total reactive power loss is reduced from 9.2MVAr to 3.3MVAr, from 6.1MVAr to 2MVAr and from 4.6MVAr to 0.9MVAr for peak load condition, average load condition and minimum load condition respectively. Therefore, by incorporating the designed Unified Power Flow Controller voltage profiles in the Eastern Region of Ethiopia is improved and transmission line loss is minimized. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/20510 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Load Flow analysis | en_US |
| dc.subject | UPFC | en_US |
| dc.subject | FACTS | en_US |
| dc.subject | Power loss minimization | en_US |
| dc.subject | Voltage Profile improvement | en_US |
| dc.subject | DIgSILENT Power Factory | en_US |
| dc.title | Transmission Line Loss Minimization and Improvement of Voltage Profile Using Unified Power Flow Controller (Case Study: Eastern Region of Ethiopia) | en_US |
| dc.type | Thesis | en_US |