Power Congestion Control Considering UPFC to Enhance Voltage Stability of the System
S. Ravindra1, U. P. Kumar Chaturvedula2, M. Ravindra3
1S. Ravindra, Department of Electrical and Electronics Engineering, Vasireddy Venkatadri Institute of Technology, Numbur, Guntur, India.
2U. P. Kumar Chaturvedula, Department of Electrical and Electronics Engineering, Aditya College of Engineering, ADB Road, Surampalem, A.P, India.
3M. Ravindra*, Department of Electrical and Electronics Engineering, Aditya College of Engineering, ADB Road, Surampalem, A.P, India.
Manuscript received on January 26, 2020. | Revised Manuscript received on February 05, 2020. | Manuscript published on February 30, 2020. | PP: 2257-2263 | Volume-9 Issue-3, February 2020. | Retrieval Number: C5802029320/2020©BEIESP | DOI: 10.35940/ijeat.C5802.029320
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: This paper proposes a new FACTS device, i.e., Unified Power Flow Controller (UPFC) to relieve power congestion on power grid network. A simple model of a three phase AC–network of 500/230kV, 5-bus network with two transformers and two power generation plants (1000MW, 500MW) is designed. UPFC is designed with IGBT converters connected in shunt- series and both interconnected with DC bus and connected to AC side with transformer and coupling reactors. A contingency case is considered such that two transformers are considered instead of three transformers. The power flow of an UPFC installed at Bus-3 in 5-bus system is analyzed to show how the congestion of power on the grid is relieved through it. A bypass circuit breaker is installed at Bus -3 in the circuit to show the natural power flow without UPFC and power flow after installation of UPFC. The topology of series converter build in UPFC can introduce maximum of 10% of line-ground voltage in series. The simulation network of the 5-bus transmission network with UPFC connected at Bus-3 is designed with MATLAB/SIMULATION Software to estimate the power flow with UPFC connected.
Keywords: Congestion, FACTS, Power Flow, Power Grid, UPFC.