Study of Capacitor Coupled Substation with Controllable Network Transformer for Power Tapping and Control

Volume 9, Issue 1, February 2024     |     PP. 11-26      |     PDF (1888 K)    |     Pub. Date: June 27, 2024
DOI: 10.54647/dee470359    31 Downloads     2896 Views  

Author(s)

Sinqobile Wiseman Nene, Department of Electrical Engineering Department, Tshwane University of Technology, EMalahleni, Republic of South Africa

Abstract
Electricity is indispensable worldwide, but conventional distribution networks struggle in sparsely populated areas. Capacitor Coupled Substations (CCS) and Controllable Network Transformers (CNT) are promising solutions for supplying electricity to such regions. CCS efficiently delivers power to remote areas, while CNT enables bidirectional power flow, crucial for integrating micro-grids and managing energy fluctuations. Combining CCS and CNT facilitates both power tapping and injection into the transmission network. A study using MATLAB/Simulink models the impact of CCS-CNT integration on transmission networks. Results indicate negligible voltage level disturbance, suggesting its seamless integration. Moreover, incorporating CNT within CCS systems might obviate the need for external ferroresonance suppression circuits (FSC). Thus, CCS-CNT systems offer dual functionality, effectively supplying and injecting electricity into the grid while potentially serving as FSCs. The research purpose is to assess the results that can be achieved when utilizing a CCS-CNT system for supplying electricity to a dedicated load. The results showed that a typical CCS-CNT results in normally acceptable output voltage when the system is connected to a transmission network. Furthermore, it also shows that there is no impact on the transmission network it is connected to. This research underscores the importance of innovative solutions like CCS-CNT in extending reliable electricity access to underserved areas and enhancing grid resilience. Further analysis is warranted to explore additional benefits and optimize system performance.

Keywords
Capacitor Coupled Substation; Controllable Network Transformer; System Modeling; Electrical Transmission Network; Rural Electrification Technology; Alternative Distribution Network

Cite this paper
Sinqobile Wiseman Nene, Study of Capacitor Coupled Substation with Controllable Network Transformer for Power Tapping and Control , SCIREA Journal of Electrical Engineering. Volume 9, Issue 1, February 2024 | PP. 11-26. 10.54647/dee470359

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