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All Journal International Journal of Electrical, Energy and Power System Engineering (IJEEPSE)
Sithebe, Thembelani
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy

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The Predictive Study on Soweto Wind Turbine Results and Port-Elizabeth Sithole, Tshepo; Veeredhi, Vasudeva Rao; Sithebe, Thembelani
International Journal of Electrical, Energy and Power System Engineering Vol. 6 No. 2 (2023): The International Journal of Electrical, Energy and Power System Engineering (I
Publisher : Electrical Engineering Department, Faculty of Engineering, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ijeepse.6.2.140-144

Abstract

The results achieved for the research objectives of the Soweto Wind Turbine project were very encouraging. During comparison of prototype energy delivered versus time of day/month, results showed the energy production of Prototypes 1, 2 and 3 per month during operation at Soweto. It was observed that Prototype 3 outclassed Prototype 1 and 2 in terms of energy generated per month. Prototype 3 achieved 39.5 W output per wind speed of 1.17 m/s and was predicated to generate a maximum 40 kWh per month. Following information can be found in my recent published article, Implementation and Evaluation of a Low Speed and Self-Regulating Small Wind Turbine for Urban Areas in South Africa published at Engineering, Technology and Applied Science Research [ETASR] peer review open journal. This paper will present results on a predictive study which was subsequently done on implementing the same technology in the coastal regions of South Africa such as Gqeberha (formerly Port Elizabeth), where prevailing winds are much stronger. The results showed that, utilizing the empirically obtained data in Soweto, projected an energy output of up to 54.3 W per wind speed of 5.16 m/s (18.6 km/h) and up to 100 kWh per-month.
The BMS Tool Monitoring Vertiv UPS and Vision Lithium-Ion Battery System Sithole, Tshepo; Veerdhi, Vasudeva Rao; Sithebe, Thembelani
International Journal of Electrical, Energy and Power System Engineering Vol. 7 No. 1 (2024): The International Journal of Electrical, Energy and Power System Engineering (I
Publisher : Electrical Engineering Department, Faculty of Engineering, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ijeepse.7.1.55-66

Abstract

In my previous work published in an acknowledged publication, titled "Factory test of a TP-100 Lithium Ion Vision Battery System for possible Implementation in Soweto, Johannesburg, South Africa," According to the findings from the study report, the TP-100 Vision Lithium-Ion battery system was found to be suitable for implementing a wind turbine system in Soweto. Furthermore, the study's findings indicated that Lithium-Ion batteries were the optimal choice for storing energy in wind turbines. These batteries provided significant total cost of ownership (TCO) reductions over a 10-year period, without the inconvenience and expenses associated with replacing lead-acid batteries. This research paper aims to validate the precision of parameters obtained from the integration of a 160 kVA Vetiv Three Phase UPS to a TP-100 Vision Lithium Ion Battery system in contrast to those obtained from the Battery Monitoring System (BMS) while using Tool BMS Version 1.3 Software. The results validation was evident as the parameters acquired from the UPS and Battery system were found to be accurate when compared to those observed through the BMS tool. Finally, utilizing the Smart Cloud Management System (SCMS), validity was shown by the ability to remotely monitor the operation of both the UPS and the Li-ion Battery system.
Samsung Lithium Ion Battery for Uninterruptible Power Supply Sithole, Tshepo; Veerdhi, Vasudeva Rao; Sithebe, Thembelani
International Journal of Electrical, Energy and Power System Engineering Vol. 8 No. 1 (2025): The International Journal of Electrical, Energy and Power System Engineering (I
Publisher : Electrical Engineering Department, Faculty of Engineering, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ijeepse.8.1.55-71

Abstract

Samsung's energy storage systems for data centres are pioneering, being the first lithium-ion battery cabinets to meet stringent UL rack-level safety standards. Integrating an Uninterruptible Power Supply (UPS) with an energy storage system is essential for ensuring reliable power to critical loads. Samsung lithium-ion battery systems are engineered to exceed the demands of large-scale UPS applications. This paper reviews, implements, and analyses Samsung lithium-ion batteries compared to lead-acid batteries, particularly with the Vertiv UPS system. A 400 kVA Vertiv UPS was connected to 17 Samsung SDI lithium-ion batteries in a robust rack configuration, each rated at 30.4 Vdc and 67 Ah. Simultaneously, a lead-acid battery setup consisting of forty 12V 67Ah batteries housed in a specialized cabinet was evaluated. A 360 kW resistive load was applied to the UPS output, and an external mains failure was simulated while measuring end-of-discharge time. Results showed that the Samsung SDI lithium-ion battery system reached a cut-off voltage of 393.5 VDC at 954.0 A, achieving 58 minutes of runtime, while the lead-acid system recorded 395.2 VDC at 962.0 A, lasting 49 minutes. These findings confirm the superior performance of lithium-ion batteries in UPS applications, reinforcing their role in data centre energy storage.
Review of Static Transfer Switch Applications in AC Power Systems: Enhancing Reliability and Fault Tolerance Sithole, Tshepo; Veerdhi, Vasudeva Rao; Sithebe, Thembelani
International Journal of Electrical, Energy and Power System Engineering Vol. 8 No. 3 (2025): The International Journal of Electrical, Energy and Power System Engineering (I
Publisher : Electrical Engineering Department, Faculty of Engineering, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ijeepse.8.3.314-322

Abstract

This paper presents a comprehensive review of static transfer switch (STS) applications in AC power systems, with a focus on enhancing reliability and fault tolerance. The review outlines the fundamental requirements for effective STS deployment, including the necessity of two truly independent and nominally synchronized AC power sources, optimal placement of the STS near protected loads, and proper grounding practices to minimize single points of failure. The analysis synthesizes recent literature on STS topologies, control mechanisms, and integration with uninterruptible power supplies (UPS), highlighting the importance of redundancy and the persistent challenges of achieving source independence and synchronization. Empirical studies and case analyses are discussed to demonstrate the impact of STS design and deployment on minimizing risks to sensitive loads. The paper concludes by providing practical recommendations and identifying future research directions for further improving STS solutions in resilient AC power systems.
Co-Authors Sithole, Tshepo Veerdhi, Vasudeva Rao Veeredhi, Vasudeva Rao