Linear Electric Generators (LEGs) are attractive devices for new efficient and sustainable ways of developing power generating technologies. This research work contributes in determining the increase of energy potential of LEGs while using superconductor coils instead of stator and actuator made of heavy and high permeability materials, necessary when conventional conductive material such copper is used to generate electrical energy. The proposed work highlights the techno-economic aspects of using superconductive materials in the LEG coil. Moreover, the design features of the LEG using superconductors, the electromagnetic analysis performance with finite element simulations and the experimentation results are presented. The comparison of the power extracted using copper coil and superconducting material is established, three times more power is obtained with superconductor coil.

In this paper, a Static Synchronous Compensator based on the direct Matrix Converter (MC-STATCOM) is proposed for reactive power compensation. The MC-STATCOM allows eliminating the energy storage device used in conventional STATCOM topologies, besides improving some of its operational characteristics. This device is controlled through a linear control strategy in order to ensure its stability and dynamic response. The MC-STATCOM performance is verified through several time domain simulations carried out in MATLAB /Simulink©. The results obtained validate the feasibility of the topology proposed.

Designing and manufacturing transformers often involves variations in heights and thicknesses of windings. However, such geometric asymmetry introduces a significant impact on the magnitude of stray transformer losses. This study examines the effects of asymmetric coils on the generation of stray losses within core clamps and transformer tank walls. A model has been introduced to ascertain the dispersion magnetic field’s value at a specific distance from the coil. The analysis extends to characterising the dispersion magnetic field reaching the tank walls by using electromagnetic simulation by a finite element method. It explores strategies to diminish stray losses, including the placement of magnetic shunts as protective shields for the tank walls. It delves into the efficacy of employing a transformer shell-type configuration to mitigate the magnetic dispersion field. The findings revealed that achieving greater symmetry in transformer coils can minimise stray losses. Specifically, the incorporation of magnetic shunts has the potential to reduce additional losses by 40%, while the adoption of a shell-type configuration alone can lead to a 14% reduction. This work provides valuable insights into optimising transformer designs, contributes a user-friendly tool for estimating additional tank losses, thereby enhancing the knowledge base for transformer manufacturers.

Computer-aided tool called design tool for wireless power transfer (DWPT) was created with the aim of designing wireless power transfer (WPT) systems and analyzing its relevant parameters that affect the output power estimation. This tool is capable of predicting the output power by considering various factors, such as transmitter/receiver coils separation, coils dimensions and geometric shape, averaged value of the magnetic flux density induced on the receptor coil, induced voltage, and efficiency. DWPT uses the analytical equations obtained through a circuital model of the WPT and complemented with an analytical model for coupling coefficient between coils, which was obtained from finite element simulations' results. DWPT was created in MATLAB graphical interface. DWPT results were contrasted with numerical simulation by finite element to validate them. The average difference between them reached 8%. In addition to the acceptable precision of DWPT, it is possible to design WPT systems quickly and with less computational burden compared to finite element simulations. Thus, DWPT can be a very valuable tool for identifying the crucial parameters of WPT design. Besides, it provides an idea of the electrical energy that can be obtained before proceeding to the manufacturing stage.