http://hdl.handle.net/20.500.14044/33805 Sun, 26 Jul 2026 21:29:00 GMT 2026-07-26T21:29:00Z http://hdl.handle.net/20.500.14044/32058 Generalized Predictive Speed Control of Two- Motor Drive Machines Series-Connected Fed by Five-Phase Bessaad, Taieb; Otmane, Khelifa Khelifi; Benbouali, Abderrahmen; Taleb, Rachid; Bouchaib, Ali; Atif, Iqbel This work examines a newly introduced five-phase drive system with two motors and stator windings connected in series. Using a widely recognized phase transposition in the series chain, it is shown how a single five-phase SVPWM inverter can power a two series-connected five-phase machine drive with decoupled torque and flux control. The exceeded generated current is among the many important problems: quick, with significant change in step of the speed control of a single inverter-supplied both 5-phase synchronous drive machines connected in series. Consequently, if the speed controller lacks output amplitude limitation, it may cause damage to the motor itself as well as the power electronics converter. This study's goal is to solve saturating speed controller issue. First, a speed control loops and both internal current loops are the two applications for controllers that are predictive in polynomial form. In order to make sure that the reference speed response stays within an enforced template under temporary conditions with a low current command, the outer predictive controller for speed is then enhanced by optimizing the Youla parameter convexly while taking frequency and temporal constraints into account. On the other hand, the new controller maintains the closed loop's properties that the original predicting controller. The results of the simulation confirm the validity and effectiveness of the control strategy proposed Generalized Predictive Control GPC_RST of the multi-machines system in both terms of performance and robustness (the stator resistance Rs1,2 and the inertia variation J1,2 have been doubled, and the inductances L d1,2 and L q1,2 have been lowered by 20% of their nominal values) compared to the conventional Proportional Integral PI controllers. Wed, 01 Jan 2025 00:00:00 GMT http://hdl.handle.net/20.500.14044/32058 2025-01-01T00:00:00Z http://hdl.handle.net/20.500.14044/32057 Using Indoor Positioning Systems (IPS), for Supporting the Digital Mapping and Evaluation of Material Handling Processes, in Intralogistics Systems Molnár-Major, Petra; Bóna, Krisztián The need for process digitalization, with the solution of Industry 4.0, has impacts for logistics companies. The need of the retrieving dynamic information about the position of different objects has also appeared in intralogistics. In a facility, dynamic data from the position of moving material handling machines can provide useful information for companies enabling the optimization of related processes. Indoor positioning can be implemented using different technologies and solutions, but the accuracy and reliability of existing indoor positioning systems (IPS) vary significantly and can be affected by many factors. This is a disadvantage for IPS supported online reproduction of manual analyses. This article will present the possibilities of using data from IPS, through various logistics analyses. It will be shown that analytical solutions can be implemented using location coordinates and the time data from IPS.; The need for process digitalization, with the solution of Industry 4.0, has impacts for logistics companies. The need of the retrieving dynamic information about the position of different objects has also appeared in intralogistics. In a facility, dynamic data from the position of moving material handling machines can provide useful information for companies enabling the optimization of related processes. Indoor positioning can be implemented using different technologies and solutions, but the accuracy and reliability of existing indoor positioning systems (IPS) vary significantly and can be affected by many factors. This is a disadvantage for IPS supported online reproduction of manual analyses. This article will present the possibilities of using data from IPS, through various logistics analyses. It will be shown that analytical solutions can be implemented using location coordinates and the time data from IPS. Wed, 01 Jan 2025 00:00:00 GMT http://hdl.handle.net/20.500.14044/32057 2025-01-01T00:00:00Z http://hdl.handle.net/20.500.14044/32055 Motion Planning for Chemical Systems: Consecutive Reactions Virágh, Eszter; Kiss, Bálint; Drexler, Dániel András Motion planning is widely used for analyzing and controlling nonlinear systems, such as mobile robot navigation and robotic automation. When a mathematical model of the system is available, motion planning allows for system analysis and control without the need for sampling or physical intervention, thereby avoiding any disturbance to the behavior of the system. This study explores the application of motion planning methods to chemical reac- tion systems. Specifically, it demonstrates how to define desired trajectories for consecutive reactions using the parametrized function class method. The planning assumes isothermal conditions, which are modeled by setting the temperature as a constant time function. Under this assumption, the system describing consecutive reactions becomes linear. Starting from the kinetic model, we derive the time-dependent behavior of the state variables. Based on these results, a controller is designed for a two-step consecutive reaction. The state of the system can be determined at any time from the computed time functions, and the future be- havior of the system can be accurately predicted. This approach helps prevent accidents and undesired outcomes by ensuring the reaction proceeds along the planned trajectory. Wed, 01 Jan 2025 00:00:00 GMT http://hdl.handle.net/20.500.14044/32055 2025-01-01T00:00:00Z http://hdl.handle.net/20.500.14044/32054 Evaluate the Rollover Stability Characteristics of the Liquid Elliptical Tank Truck when Changing Motion Direction Ngoc Nguyen, Xuan; Tran, Van Nhu; Tan Vu, Van Rollover accidents of vehicle caused a very serious impact on human life and property. The rollover possibility of a tank truck was usually higher than that of a traditional passenger vehicle because the vibrations of the fluid in tank impacted on the movement. It had a tendency to roll at the ratio of 25% and 50% liquid volume in tank when it is affected by a lateral acceleration in steady turning and lane change. This conclusion is obtained from the load transfer ratio (LTR) and the roll angle value of the suspension (RAS). In order to determine these values, the study built a dynamic model of the liquid elliptical tank truck, applied quasi-static, Lagrange and D'Alembert’s principle to describe the oscillations of the liquid in tank and the rollover stability state of the vehicle. In addition, it was also determined that the liquid circular tank truck was less stable than the elliptical tank truck with the same specifications and moving conditions. Wed, 01 Jan 2025 00:00:00 GMT http://hdl.handle.net/20.500.14044/32054 2025-01-01T00:00:00Z