MICROCONTROLLER-BASED FACTS DEVICES IMPLEMENTATION

Victory Madueme; Arthur Ekwue; Emenike Ejiogu; Victor Ajah

doi:10.4314/njt.v43i2.19

Authors

V. C. Madueme Department of Electrical Engineering, University of Nigeria Nsukka, Nigeria https://orcid.org/0000-0002-5674-7168
A. O, Ekwue Department of Electrical Engineering, University of Nigeria Nsukka, Nigeria https://orcid.org/0000-0001-9683-8665
E. C. Ejiogu Department of Electrical Engineering, University of Nigeria Nsukka, Nigeria https://orcid.org/0000-0002-8194-6046
V. O. Ajah Africa Centre of Excellence for Sustainable Power and Energy Development, University of Nigeria Nsukka, Nigeria https://orcid.org/0000-0002-8442-8658

DOI:

https://doi.org/10.4314/njt.v43i2.19

Keywords:

Voltage, Power factor, Load displacement, SVC, FACTS, Reactive power

Abstract

In power systems, the case of voltage control, power factor improvement and reactive power management cannot be over-emphasized. In developing countries such as Nigeria, the electricity power system is characterized by operational constraints which are predominantly poor power quality, voltage fluctuations and increased power losses among others. Furthermore, these frequent system disturbances contribute to the unreliability of such power system. This paper looks at the thyristor-switched capacitor- thyristor-controlled reactor (TSC-TCR), static volt-ampere-reactive controller (SVC), a flexible alternating current transmission system (FACTS) device as a solution to mitigate the thermal and voltage problems associated with the Nigerian network. A microcontroller-based SVC prototype was designed in Proteus software and implemented in a laboratory environment using locally available discrete electronic components for load power factor correction based on distributed reactive power control. The microcontroller was in charge of carrying out the logic control scheme for the two branches and computing the load displacement power factor (PFD). The SVC was found to improve the PFD by 44.78% under inductive loading where the power factor increased significantly from 0.67 to 0.97.

Author Biographies

V. C. Madueme, Department of Electrical Engineering, University of Nigeria Nsukka, Nigeria

Victory Chukwuemeka Madueme obtained his Bachelors (B.Eng) and Masters (M.Eng) from the Department of Electrical Engineering, University of Nigeria Nsukka in 2012 and 2015 respectively. He is an academic staff of the same department and currently undergoing his Ph.D research in Power systems and High Voltage Engineering. His research interests are vast and not limited to Electrical Power Systems Economics, Power System Protection and Control using FACTS, Life Estimation of transformers, artificial neural network and fuzzy logic techniques to analyze power systems, Renewable Energy System Technologies, Electrical Machines Modelling. He is a registered member of the Nigeria Society of Engineers (NSE - 2016), Nigeria Institute of Electrical and Electronic Engineers (NIEEE -2018) and the Council for the Regulation of Engineering in Nigeria (COREN - 2017). He can be contacted at email: [email protected].
A. O, Ekwue, Department of Electrical Engineering, University of Nigeria Nsukka, Nigeria

Engineer Professor Arthur Obiora Ekwue [B.Sc (Eng), PhD, MBA, DIC, C.Eng, FIEE, Life Sen. MIEEE] is a visiting Professor of Power Systems at the Department of Electrical Engineering, and Africa Centre of Excellence on Sustainable Power and Energy Development (ACE-SPED), University of Nigeria, Nsukka 410001, Nigeria. He is also a Royal Academy of Engineering Visiting Professor at the Department of Electronic and Electrical Engineering, Brunel University London, Uxbridge, Middlesex UBB 3PH, UK. He has published over 120 research papers in international scientific journals, conferences and colloquia in power system analysis and control with the application of computational intelligent techniques. He is a fellow, Institution of Electrical Engineers in UK (March 2003), Senior member, Institute of Electrical and Electronic Engineers, IEEE-USA (October 1989), Chartered Engineer, Engineering Council London (October 1988), Registered Engineer by COREN (January 1986). He can be contacted at email: [email protected].
E. C. Ejiogu, Department of Electrical Engineering, University of Nigeria Nsukka, Nigeria

Engineer Professor Emenike Chinedozi Ejiogu [B.Eng, M.Eng (Nig), Ph.D (Japan)] is a Professor of Power Electronics and Drives at the Department of Electrical Engineering, University of Nigeria Nsukka. He is currently the Dean of the Faculty of Engineering and the Director of Africa Centre of Excellence on Sustainable Power and Energy Development (ACE-SPED), University of Nigeria Nsukka. He is the Lead Investigator, Laboratory of Industrial Electronics, Power Devices and New Energy Systems (LIEPNES) at the Department of Electrical Engineering, University of Nigeria Nsukka. He has over 6 international patents/inventions in engineering and over 65 publications in peer reviewed international journals and conferences. He is a member, New York Academy of Sciences, USA (1996-present), Member, Institute of Electrical and Electronic Engineers, IEEE-USA (1992-present), Member, Japan Institute of Electrical Engineers (IEEJ), Tokyo, Japan (1994 – present), Registered Engineer, COREN (2011-present). He can be contacted at email: [email protected].
V. O. Ajah, Africa Centre of Excellence for Sustainable Power and Energy Development, University of Nigeria Nsukka, Nigeria

Victor Onu Ajah is currently the chief research and product development engineer at the Laboratory of Industrial Electronics, Power Devices and New Energy Systems (LIEPNES) at the Department of Electrical Engineering, University of Nigeria Nsukka. He holds a masters degree in control systems, a bachelors in electrical/electronic engineering and other trainings & certifications in power system, power electronic designs, information technology, project management and operational safety. His areas of research interests are control designs for renewable energy enhancement, embedded-system designs, additive manufacturing technology for rapid prototyping and reserve engineering, innovative electronics for industrial and home application. He has over 10 years of work experience in the field; a registered engineer with COREN and a member of the IEEE. He can be contacted at email: [email protected]

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