A Comparison of Generalized Unified Power Flow Controller and Load Tap Changing Transformer for Voltage Stability Enhancement in a Power System
Journal of Energy Research and Reviews,
The continuous increase in power demand and huge power losses in modern power systems have been a growing concern to power utilities. Such phenomenon often results in epileptic power supply, power system instability, supply fluctuations and security problems in many parts of the globe. Identification of suitable places for the installation of reactive power compensators to minimize voltage drop and system power losses in a power system becomes imperative. In this paper, the Newton-Raphson iterative method was used for the power flow solution of the 28 bus Nigerian 330KV grid system. The Generalized Unified Power flow Controller (GUPFC) is installed at identified weak load buses of the Nigerian 28-bus power system to reduce the losses and voltage drop of the system. A comparative analysis of the GUPFC with Load Tap Changing Transformers (LTCT) is also performed. Result obtained shows that the GUPFC can largely (effectively) improve the system power stability and selectively balance the power flow of multi-lines power flows when placed at identified weak buses compared with LTCT. Thus, GUPFC can be used to reduce overall power losses along transmission lines as well as improve stability overall reliability of the power grid system.
- Power flow
- voltage stability
- power loss
- power system
- load tap changing transformer
How to Cite
Araga IA, Anibasa AO, Alabi II. Placement of multiple Svc on nigerian grid system for steady state operational enhancement. Am. J. Eng. Res. 2017;6:78–85.
Suresh CV, Raju SS. Mathematical modeling and analysis of a generalized unified power flow controller with device rating methodology. Int. J. Electr. Eng. Informatics; 2015.
Abasi M, Joorabian M, Saffarian A, Seifossadat SG. Accurate simulation and modeling of the control system and the power electronics of a 72-pulse VSC-based generalized unified power flow controller (GUPFC). Electr. Eng; 2020.
Alhassan F, Abubakar AS, Yusuf J, Yusuf S, Idris K. Enhancement of voltage stability using generalized unified power flow controller. ATBU Journal of Science, Technology and Education. 2020;8(2):189-198.
Adepoju Gafari Abiola, Akangbe Samson Ayorinde, Oni Joe Oladosu. Power flow analysis of longitudinal electrical power system incorporating generalized unified power flow controller (GUPFC). American Journal of Electrical Power and Energy Systems. 2016;5(6):59-66.
Valle DB, Araujo PB. The influence of GUPFC FACTS device on small signal stability of the electrical power systems. Int. J. Electr. Power Energy Syst; 2015.
Saadat H. Balanced Fault. Power Syst. Anal; 2010.
Saadat H, others. Power system analysis. McGraw-hill. 1999;2.
Lubis RS, Hadi SP. Selection of suitable location of the FACTS devices for optimal power flow. Int. J. Electr. Comput. Sci. IJECS-IJENS; 2012.
Adebayo IG, Adejumobi IA, Adepoju GA. Application of load tap – changing transformer (LTCT) to the optimal economic dispatch of generation of the Nigerian 330kV grid system. International Journal of Emerging Technologies in Sciences and Engineering. 2012;5(3):40-50.
Ricardo BP, Bernardo HT, Jorgeson OR, Luiz Pilotto AS, André Bianco B. Modelling on load tap changer voltage control and limits for network loading and voltage control effectiveness assessment. IEEE Bologna Power Tech conference, Bologna, Italy. 2003;4:1.
Abstract View: 85 times
PDF Download: 50 times