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W artykule przedstawiono aktualną ofertę badawczo wdrożeniową Katedry Napędów i Maszyn Elektrycznych Politechniki Lubelskiej. Ofertę tą przedstawiono na tle historycznej działalności Katedry kierowanej przez poprzednich kierowników. Podkreślono praktyczny charakter badań. Wyróżniono kierunki prac wdrożeniowych obejmujących m.in. napędy i sterowanie dźwigów osobowych, układy elektromaszynowe zasilane...
Systemy kontrolno-pomiarowe stanowią istotną grupę narzędzi diagnostycznych wykorzystywanych w przemyśle. Prawidłowo dobrane do charakteru procesu pozwalają na wczesne wykrywanie niepożądanych stanów procesu, dzięki czemu możliwe jest np. zapobieganie katastrofom przemysłowym. Nieustanny rozwój tych systemów powoduje, że są one coraz bardziej precyzyjne i efektywne, jednak od dokładności urządzeń...
In the article the functional stability of complex systems are considered. Mathematical formalization of property of functional stability is presented. Promising directions of research in this area are also described.
This paper presents the operation of grid tied, two level voltage source inverter (VSI) during network voltage unbalance. The control system was implemented in synchronous rotating reference frame dq0 (SRF). Two types of control structures were investigated herein. First utilizes the Double Decoupled SRF Phase-locked loop (DDSRF-PLL) synchronisation with positive and negative sequence currents control...
It was proposed a method of comparative estimation of process control loops based on a complex of direct and indirect performance measurers taking into account stability margins. It was presented a comparison algorithm for complex performance parameter considering the influence of stability margins of a control loop on its properties. Features of the method of comparative estimation of process control...
In the article, the development of a system of counteraction to unmanned aerial vehicles is considered. A way to counteract unmanned aerial vehicles is described. The analysis of parameters of the system and its constituent parts is carried out. The structural scheme of the system, functional and principle schemes of subsystems on the basis of Arduino are described.
The paper presents energy and exergy analysis of a typical dwelling ventilation system with heat recovery for Ukrainian climatic conditions using a quasi-steady state approach over 24-hour time-steps. Evaluation of such systems on the base of the first law of thermodynamics demonstrates that heat recovery is beneficial for the whole variety of operational modes. Such methodology identifies as a thermodynamic...
The aim of this research is to check which of two devices the keyboard or the controller –has a positive effect on a player's game-play in a platform game. Four parameters are defined: death count, error count, game time, learning time. A custom game is designed and implemented specifically for the research. The conducted experiment is divided into thirty-minute sessions, during which one player participates...
The paper analyzes the main areas of application of mathematical methods inmedical diagnostics, formulates principles of diagnostics basedon fuzzy logic; developed mathematical models and algorithms that formalize the process of making diagnostic decisions based on fuzzy logic with quantitative and qualitative parameters of thepatient's condition; developed mathematicalmodels of membership function...
The article is concerned with the issues of practical utilization of controllers for automation in various technical fields as example Mitsubishi controllers of MELSEC FX1N and FX3U series. Any task, which requires the utilization of electrical control devices, is easy to solve by means of usage of programmable logic controllers. By using software with controllers programming package GX Developer,...
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