Transformer Outage Contingency in the Southern Interconnected Grid of Cameroon Based on Dynamic Power Flow Simulation
The power system is a network of components having specific operational limits such that any violation of these limits during their operation could lead to more damage in the grid. The grid in Cameroon has been facing several undesired loading events at some sections of the network and the utility c...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2024-01-01
|
| Series: | Journal of Engineering |
| Online Access: | http://dx.doi.org/10.1155/2024/5394978 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832543422326505472 |
|---|---|
| author | Chu Donatus Iweh Wirnkar Basil Nsanyuy Nde Donatus Nguti Emmanuel Tanyi |
| author_facet | Chu Donatus Iweh Wirnkar Basil Nsanyuy Nde Donatus Nguti Emmanuel Tanyi |
| author_sort | Chu Donatus Iweh |
| collection | DOAJ |
| description | The power system is a network of components having specific operational limits such that any violation of these limits during their operation could lead to more damage in the grid. The grid in Cameroon has been facing several undesired loading events at some sections of the network and the utility company has over the years, employed measures to mitigate these issues. This study has used the ETAP software to conduct a contingency analysis on the largest independent grid in Cameroon, supplying 6 regions in Cameroon. Seventeen transformer outage events in the network were used to conduct the N-1 scenario-based contingency, so that the vulnerability of the network can be evaluated. The fast decoupled power flow method was continuously applied on the network, and the different contingency scenarios were ranked using a combination of 4 performance indices. These four performance indices gave information on the impact of the various transformer outage scenarios on the grid. The four indices were added to give a combined value, and the outages were ranked in order of severity based on this combined index. A major contribution of this paper is the use of four scalar indices to classify the critical elements in the grid of a developing country. The initial load flow simulation of the network showed that 12 nodes had under voltages, while 3 transformers and one transmission line were overloaded. The Ngousso corridor suffered one of the worst under voltage situation during the initial power flow study. This is an indication that the utility company needs to undertake intensive network upgrade and implore measures to increase power generation to support the growing loads. It was observed that all the contingency scenarios experienced convergence. The Oyomabang transformer 1 had the highest combined index of 71.20, showing a huge negative impact on the network as a result of the outage of the transformer. This was followed by the Oyomabang transformer 2 with a combined index of 48.63. The results will be very useful to utility operators in prioritizing transformers in the network with high risk of causing huge impact on the network in case of an outage. |
| format | Article |
| id | doaj-art-5d91252b6b9043eba6a8cfa257c93860 |
| institution | Kabale University |
| issn | 2314-4912 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj-art-5d91252b6b9043eba6a8cfa257c938602025-02-03T11:43:46ZengWileyJournal of Engineering2314-49122024-01-01202410.1155/2024/5394978Transformer Outage Contingency in the Southern Interconnected Grid of Cameroon Based on Dynamic Power Flow SimulationChu Donatus Iweh0Wirnkar Basil Nsanyuy1Nde Donatus Nguti2Emmanuel Tanyi3Regional Centre for Energy and Environmental Sustainability (RCEES)Department of Electrical and Electronic Engineering, Faculty of Engineering and TechnologyDepartment of Electrical and Electronic Engineering, Faculty of Engineering and TechnologyDepartment of Electrical and Electronic Engineering, Faculty of Engineering and TechnologyThe power system is a network of components having specific operational limits such that any violation of these limits during their operation could lead to more damage in the grid. The grid in Cameroon has been facing several undesired loading events at some sections of the network and the utility company has over the years, employed measures to mitigate these issues. This study has used the ETAP software to conduct a contingency analysis on the largest independent grid in Cameroon, supplying 6 regions in Cameroon. Seventeen transformer outage events in the network were used to conduct the N-1 scenario-based contingency, so that the vulnerability of the network can be evaluated. The fast decoupled power flow method was continuously applied on the network, and the different contingency scenarios were ranked using a combination of 4 performance indices. These four performance indices gave information on the impact of the various transformer outage scenarios on the grid. The four indices were added to give a combined value, and the outages were ranked in order of severity based on this combined index. A major contribution of this paper is the use of four scalar indices to classify the critical elements in the grid of a developing country. The initial load flow simulation of the network showed that 12 nodes had under voltages, while 3 transformers and one transmission line were overloaded. The Ngousso corridor suffered one of the worst under voltage situation during the initial power flow study. This is an indication that the utility company needs to undertake intensive network upgrade and implore measures to increase power generation to support the growing loads. It was observed that all the contingency scenarios experienced convergence. The Oyomabang transformer 1 had the highest combined index of 71.20, showing a huge negative impact on the network as a result of the outage of the transformer. This was followed by the Oyomabang transformer 2 with a combined index of 48.63. The results will be very useful to utility operators in prioritizing transformers in the network with high risk of causing huge impact on the network in case of an outage.http://dx.doi.org/10.1155/2024/5394978 |
| spellingShingle | Chu Donatus Iweh Wirnkar Basil Nsanyuy Nde Donatus Nguti Emmanuel Tanyi Transformer Outage Contingency in the Southern Interconnected Grid of Cameroon Based on Dynamic Power Flow Simulation Journal of Engineering |
| title | Transformer Outage Contingency in the Southern Interconnected Grid of Cameroon Based on Dynamic Power Flow Simulation |
| title_full | Transformer Outage Contingency in the Southern Interconnected Grid of Cameroon Based on Dynamic Power Flow Simulation |
| title_fullStr | Transformer Outage Contingency in the Southern Interconnected Grid of Cameroon Based on Dynamic Power Flow Simulation |
| title_full_unstemmed | Transformer Outage Contingency in the Southern Interconnected Grid of Cameroon Based on Dynamic Power Flow Simulation |
| title_short | Transformer Outage Contingency in the Southern Interconnected Grid of Cameroon Based on Dynamic Power Flow Simulation |
| title_sort | transformer outage contingency in the southern interconnected grid of cameroon based on dynamic power flow simulation |
| url | http://dx.doi.org/10.1155/2024/5394978 |
| work_keys_str_mv | AT chudonatusiweh transformeroutagecontingencyinthesoutherninterconnectedgridofcameroonbasedondynamicpowerflowsimulation AT wirnkarbasilnsanyuy transformeroutagecontingencyinthesoutherninterconnectedgridofcameroonbasedondynamicpowerflowsimulation AT ndedonatusnguti transformeroutagecontingencyinthesoutherninterconnectedgridofcameroonbasedondynamicpowerflowsimulation AT emmanueltanyi transformeroutagecontingencyinthesoutherninterconnectedgridofcameroonbasedondynamicpowerflowsimulation |