The main objective of this Special Issue is to provide the opportunity to experts in the field of power electronics and drives to present their research and development efforts in the field of hardware-in-the-loop, real-time simulations, digital control, and functional safety of power electronics and drives, with emphasis on practical applications. Therefore, researchers involved in the abovementioned research topics are invited to submit their manuscripts and contribute their expertise to this Special Issue.
C.03 Guest-associated editor
COBISS.SI-ID: 523068953This doctoral thesis deals with an emulation system for Power Electronics Converters (PEC). The emulation of PECs is performed on a Field-Programmable Gate Array (FPGA) capable of hard real-time operation. In order to obtain such a system, the converter operation is described by using a Differential Equations-based model designed with the graph theory. Differential Equations coefficients are changed according to the type of converter and pulse-width modulation (PWM) signals. The tie-set and incidence matrix approach for the converter modelling is performed in order to describe the converter operation in a general way. Such approach enables that any type of PECs can be described appropriately. The emulator is verified with simulations and experimentally by synchronous operation with a real rectifier and DC-AC convertercircuits built for these purposes.
F.02 Acquisition of new scientific knowledge
COBISS.SI-ID: 22616854Introduction of the Scrum approach into software engineering has changed the way software is being developed. The Scrum approach emphasizes the active end-user involvement, embracing of change, and /iterative delivery of products. Our study showed that Scrum has different variants or is used in combination with different methods. Some tools not normally used in the conventional software approaches, like gamification, content analysis and grounded theory are also employed. However, Scrum like other software development approach focuses on improvement of software process, software quality, business value, performance, usability and efficiency and at the same time to reduce cost, risk and uncertainty. Contrary to some conventional approaches it also strives to boost soft factors like agility, trust, motivation, responsibility and transparency. The bibliometric synthetic scoping study revealed seven main research themes concerned with the Scrum research.
F.15 Development of a new information system/databases
COBISS.SI-ID: 46252803Home automation technology has been increasingly important in our lives, since it offers numerous advantages, e.g., greater comfort, safety, security and energy efficiency. A smart home automation system usually includes a central computer with deployed home automation software and several distributed sensors and actuators. Wired connections between a central computer and sensor/actuator nodes are already well established, however, wireless solutions are an emerging trend. This work addresses smart home automation solutions that are based on wireless Wi-Fi network. Such solutions enable an upgrade of an existing house into a smart house without modifications of hardware installations. The article includes an overview of related works in this research field, and a case study of cost effective home automation solution that is based on open source home automation software and wireless, custom developed, Wi-Fi based hardware.
F.01 Acquisition of new practical knowledge, information and skills
COBISS.SI-ID: 25297923This article presents the development of the theoretical background and the design of an electronic device for monitoring the condition of a gapless Metal Oxide Surge Arrester (MOSA). The device is intended to be used online. Because of the inaccessibility and possible remote location of most surge arresters, it is equipped with a communication system, allowing for the device to convey the measurement of the surge arrester characteristics under any conditions. It is possible to determine the condition of the MOSA by gathering measurements of the surge arrester’s resistive component of leakage current. The leakage current information is sent via data transfer unit to a server and, after interpretation, will be forwarded to the authorised personnel through the surge arrester control centre.
F.06 Development of a new product
COBISS.SI-ID: 50914563