Influence of increasing Integration of Solar photovoltaic on Small Signal and Transient stability of Nigeria Power System
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Richard Olarewaju
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Ayodeji S. Ogunjuyigbe
Abstract
In this paper, the effect of Solar Photovoltaic (SPV) penetration on the damping of critical and inter area modes arising from different penetration level of SPV into the Nigeria national grid has been studied. Also, the possible effects of SPV penetration on Critical Clearing Time (CCT) when a three-phase fault occurs on the grid are studied. The Nigeria 56-bus system was used for the investigation. Sensitivity analyses are carried out to obtain insight into how certain change in parameters affects both the transient and small signal stabilities of the Nigerian power systems. DigSILENT Power Factory was used for the simulation while the analysis was performed in MATLAB. Some of the important findings show that the grid developed increasing amplitude of oscillation from 20 % SPV penetration. There is no steady increase or decrease of CCT with penetration levels. The effect of changes in load on small signal conducted shows that both the real and imaginary load at Kano and Birnin kebbi bus should not exceed 257 MW, 176 MVAR and 171 MW, 134 MVAR, respectively so as to avoid system collapse.
Correction note
Correction added November 08, 2024 after online publication 23 September 2024: Article title changed from “Investigating the impact of integrating solar photovoltaic on the voltage stability of the Nigeria 56-bus network” to “Influence of increasing Integration of Solar photovoltaic on Small Signal and Transient stability of Nigeria Power System”.
Acknowledgments
The authors gratefully acknowledge the contributions of DigSILENT power Factory by providing Power Factory version 2021 SP4 free of charge for the simulation of the study. The authors also acknowledge the National Control Centre, Osogbo, Nigeria for providing the transmission data used for this study.
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Research ethics: Not applicable.
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Author contributions: Richard Olarewaju: conceptualization, literature review, simulation, original draft preparation and typesetting. Ayodeji Ogunjuyigbe: supervision, editorial work and review. Temitope Ayodele: editorial work, review and writing. Thapelo Moselthe: review editorial work and investigation. Yusuff Adedayo: editorial work, review and writing.
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Competing interests: The authors declare that there are no conflicts of interest.
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Research funding: The authors declare that there are no funding for this study.
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Data availability: The data used in this study was obtained from National Control Centre (NCC), Osogbo, Nigeria.
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Articles in the same Issue
- Frontmatter
- Research Articles
- Improving islanded distribution system stability with adaptive decision-making framework
- Sensorless control method of induction motors with new feedback gain matrix and speed adaptive law for low speed range
- An improved CB-DPWM strategy with NP voltage balance and switching loss reduction for 3-L NPC converter
- Single-ended protection scheme for three-terminal hybrid DC transmission system based on refractive coefficients
- Long-distance transmission conductor condition sensing based on distributed fiber optic sensing technology
- Data integrity cyber-attack mitigation using linear quadratic regulator based load frequency control in hybrid power system
- Investigation of DG units influence on 66 kV sub-transmission system network considering region load growth: a case study
- Influence of increasing Integration of Solar photovoltaic on Small Signal and Transient stability of Nigeria Power System
- Implementation of SOC-based power management algorithm in a grid-connected microgrid with hybrid energy storage devices
- Experimental studies on insulating oils for power transformer applications
- Power distribution system restoration based on soft open points and islanding by distributed generations
- Power coordination and control of DC Microgrid with PV and hybrid energy storage system
- An investigation on NGR failure in Indian smart cities while replacing the existing overhead lines by underground cables
