• Operational cost and emissions minimisation of a multi-microgrid system through energy management 

  Gildenhuys, Tiaan (University of Pretoria, 2019-12)

  Existing energy management problems for a multi-microgrid (MMG) system only minimise the operational cost. This study proposes a multi-objective operational cost and emissions minimisation (OCEM) problem for a grid-tied ...
• Evaluation and expansion of observable dynamic froth flotation models for control 

  Venter, Jaco-Louis (University of Pretoria, 2023)

  This work builds on existing observable dynamic models of froth flotation circuits, aimed at on-line parameter estimation and model-based control. The models are analysed and two main limitations are identified and ...
• Optimizing flotation performance using extremum seeking control 

  Wepener, Daniël Adriaan (University of Pretoria, 2023)

  In this dissertation, a flotation circuit is controlled in simulation using an extremum seeking control (ESC) approach to optimize the flotation performance of the circuit using peak air recovery. Flotation is a separation ...
• On-line auto-tuning of multivariable industrial processes using Bayesian optimisation 

  Van Niekerk, Jonathan Anson (University of Pretoria, 2023)

  Auto-tuning of multi-input multi-output (MIMO) controllers of a bulk tailing treatment (BTT) surge tank is presented. Two controllers are selected for optimisation. The first controller is a decentralised proportional-integral ...
• Autonomous and decentralised energy markets in smart DC microgrids 

  Naraindath, Nishkar (University of Pretoria, 2022)

  Microgrids are gaining popularity due to their ability to integrate distributed renewable energy generation. In addition, direct current (DC) - based operation results in significantly higher operational efficiency. However, ...
• Hybrid Energy Storage To Increase Durability And Efficiency Of Hybrid Electric Vehicles. 

  Louw, Wehan (University of Pretoria, 2022)

  The addition of a short-term energy-storage system in conjunction with the battery to reduce fuel consumption, reduce emissions, and increase the service life of the battery is considered. A quasi-static simulation approach ...
• Mathematical models of vapor-compression systems for multivariable control of the refrigerant dynamics and indoor air conditions 

  Sanama Goufan, Conrad Constant (University of Pretoria, 2023)

  Detailed steady and transient state models of vapor compression (VC) systems have been suggested in this work so that the governing parameters of the refrigerant dynamics such as pressure, enthalpy and temperature could ...
• Developing a congestion management scheme to reduce the impact of congestion in mixed traffic LoRaWANs 

  Marais, Jaco Morne (University of Pretoria, 2022)

  The development of wireless technologies such as the Long Range Wide Area Network (LoRaWAN) protocol has enabled connectivity for a wide range of devices for optimisation and automation purposes. These types of technologies ...
• Anomalous Reflection from Phase Gradient Metasurfaces for Arbitrary Incident Angles 

  Barnard, Wihan (University of Pretoria, 2023)

  Over the past few decades radar cross section (RCS) manipulation has become increasingly important. This increase in interest is due to the development and improvement of stealth technology. While many RCS manipulation ...
• Virtual-reality blast scene modelling and reconstruction 

  Coetzee, Martin Jacobus (University of Pretoria, 2022)

  Virtual Reality (VR) allows the visualisation and exploration of detailed 3D environments. Recent advances in technology have made the use of VR more accessible for research and industry applications. VR is especially ...
• Navigation and control of a quadcopter for real-time image processing applications 

  Govender, Vikesh (University of Pretoria, 2022)

  In several quadcopter-related research work, the research mainly focuses on the image processing application and generally provides an inadequate description of the navigation and control of the quadcopter. While image ...
• Risk–constrained stochastic economic dispatch and demand response with maximal renewable penetration under renewable obligation 

  Hlalele, Thabo Gregory (University of Pretoria, 2020)

  In the recent years there has been a great deal of attention on the optimal demand and supply side strategy. The increase in renewable energy sources and the expansion in demand response programmes has shown the need for ...
• An investigation into the spectral transfer function and characterization of a terrestrial solar-blind ultraviolet electro-optical system 

  Coetzer, Casper Johannes (University of Pretoria, 2015)

  Solar-blind Ultraviolet cameras are used to detect missile plumes and perform the detection of corona on high voltage electrical lines. This study investigates the influence of the spectral transfer function of a specific ...
• Optimized cable systems design which limits soil drying out 

  Khumalo, Ntombifuthi Queeneth (University of Pretoria, 2021)

  Underrating of underground cables could result in the drying out of the soil around the cable. This results in inferior cable performance and has potential negative environmental impacts. IEC 60287 is used for cable ...
• Sparse subspace clustering-based motion segmentation with complete occlusion handling 

  Mattheus, Jana (University of Pretoria, 2021)

  Motion segmentation is part of the computer vision field and aims to find the moving parts in a video sequence. It is used in applications such as autonomous driving, surveillance, robotics, human motion analysis, and video ...
• Design and performance analysis of large horizontal axis offshore wind turbines 

  Chalikosa, Benjamin (University of Pretoria, 2020)

  System specifications and testing model for increasing the rated power output, rotor diameter, hub height, and maximum tip speed of horizontal axis wind turbines is designed and implemented on the system advisor model ...
• Face recognition with partial occlusions using weighing and image segmentation 

  Chanaiwa, Tapfuma (University of Pretoria, 2020)

  This dissertation studied the problem of face recognition when facial images have partial occlusions like sunglasses and scarfs. These partial occlusions lead to the loss of discriminatory information when trying to recognise ...
• Object detection for signal separation with different time-frequency representations 

  Strydom, Llewellyn (University of Pretoria, 2021)

  The task of detecting and separating multiple radio-frequency signals in a wideband scenario has attracted much interest recently, especially from the cognitive radio community. Many successful approaches in this field ...
• Leveraging the multimodal information from video content for video recommendation 

  Almeida, Adolfo Ricardo Lopes De (University of Pretoria, 2021)

  Since the popularisation of media streaming, a number of video streaming services are continually buying new video content to mine the potential profit. As such, newly added content has to be handled appropriately to be ...
• Queuing models for analysing and managing harvested energy in wireless sensor networks 

  Angwech, Otim Patricia (University of Pretoria, 2021)

  The advancement of wireless technology has led to an increase in the employment of wireless sensor networks (WSNs). Traditionally, WSNs are powered by batteries. However, the high power consump- tion and the need to change ...

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