Experiences with an introductory real-time software course at Delft University of Technology

Author(s):  
J. Van Katwijk ◽  
J. Zalewski
Energies ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5403
Author(s):  
Robert Małkowski ◽  
Michał Izdebski ◽  
Piotr Miller

The development of renewable energy, including wind farms, photovoltaic farms as well as prosumer installations, and the development of electromobility pose new challenges for network operators. The results of these changes are, among others, the change of network load profiles and load flows determining greater volatility of voltages. Most of the proposed solutions do not assume a change of the transformer regulator algorithm. The possibilities of improving the quality of regulation, which can be found in the literature, most often include various methods of coordination of the operation of the transformer regulator with various devices operating in the Medium-Voltage (MV) network. This coordination can be decentralized or centralized. Unfortunately, the proposed solutions often require costly technical resources and/or large amounts of real-time data monitoring. The goal of the authors was to create an algorithm that extends the functionality of typical transformer control algorithms. The proposed solution allows for reducing the risk of voltage collapse. The performance of the proposed algorithm was validated using multivariate computer simulations and tests with the use of a physical model of the distribution network. The DIgSILENT PowerFactory environment was used to develop the simulation model of the proposed algorithm. Then, tests were conducted on real devices installed in the LINTEˆ2 Laboratory at the Gdańsk University of Technology, Poland. Selected test results are included in this paper. All results have shown that the proposed algorithm makes it possible to increase the reserve of the voltage stability of the node, in which it is applied, thus mitigating the risk of a voltage collapse occurring. The proposed algorithm does not require complex and costly technical solutions. Owing to its simplicity, it has a high potential for practical application, as confirmed by the real-time control experiment in the laboratory.


2021 ◽  
pp. 148-157
Author(s):  
Mingxi Chen

AbstractPrevention and management of epidemic is a protracted war. As large community in city, universities are key regions in the anti-epidemic period. However, the current epidemic prevention and management measures in many universities do not compatible with the spatial form and the characteristics of the population, likely to lead to waste of resources and cause conflicts. The research simulates campus environment by constructing GIS model, and simulates the behavior of campus crowd by ABM. Under the coupling effect of the two, the real-time calculation of the spread of epidemic in universities can be calculated in real-time, making up for the deficiency of GIS model which can only do static data analysis. On this basis, research takes South China University of Technology as an example and assumes three epidemic prevention management measures, i.e. closed-off management, zoning management and self prevention, respectively to simulate the spread of the epidemic, sum up the results of different management measures and provide certain suggestions.


1997 ◽  
Vol 34 (1) ◽  
pp. 5-15
Author(s):  
Jan Heydeman

A real time analog power system simulator for research and teaching has been developed at Delft University of Technology. The simulator consists of 1 swing bus, 7 generators, 2 tap changing transformers, 9 dynamic loads, 12 lines and 12 busbars. Experiments on control of voltage and power-frequency and on steady-state and transient stability are shown.


2016 ◽  
Vol 14 (4) ◽  
pp. 322-332
Author(s):  
Ioanna Symeonidou

The article presents a research on real-time shape exploration employing analogue and digital form-finding and concludes with a proposal for a teaching methodology that led to an intensive student workshop which took place at the Institute of Architecture and Media at Graz University of Technology. The aim was to experiment with analogue and digital tools in parallel, counter-informing the design process. The experiments involved physical form-finding following the tradition of Frei Otto at the Institute of Lightweight Structures in Stuttgart as well as computational form-finding employing mainly dynamic relaxation techniques of spring-particle systems. The combination of techniques and methodologies eventually led to a feedback loop across different media that explored both qualitative and quantitative characteristics of the projects at hand. By establishing feedback between digital media and physical prototypes, the creative process is immediately informed by the material characteristics and properties which in turn give rise to a real-time exploration of form. Simulations of physical forces for architectural form generation are increasingly gaining ground in architectural education as there is a broad selection of computational tools readily available that allow quick experiments to be conducted.


2017 ◽  
Vol 43 (1) ◽  
pp. 95-112
Author(s):  
Wojciech Krupa ◽  
Anita Linka ◽  
Agnieszka Wróblewska

Abstract The paper presents the functionality and applicability of AeroSafetyShow Demonstrator+PL (ASSD+PL). Software was invented and developed by a scientific consortium between Żelazny6 Wojciech Krupa company and Poznan University of Technology. Project was co-financed by the European Union and the National Centre for Research and Development. ASSD+PL is an intelligent system, which allows to increase the safety of flight operations by conducting surveillance in the real time. This system is the first controlling software which offering such a wide range of functionalities.


Aerospace ◽  
2021 ◽  
Vol 8 (12) ◽  
pp. 361
Author(s):  
Cristóbal Nieto-Peroy ◽  
Marco Sabatini ◽  
Giovanni Palmerini ◽  
Élcio Jeronimo de Oliveira

Federated remote laboratories allow for the execution of experiments ex situ. The coordination of several laboratories can be used to perform concurrent experiments of combined space operations. However, the latency of the communications between facilities is critical to performing adequate real-time experiments. This paper presents an approach for conducting coordinated experiments between floating platforms at two remote laboratories. Two independently designed platforms, one at Luleå University of Technology and the other at La Sapienza University of Rome, were established for this purpose. A synchronization method based on the Simple Network Time Protocol was created, allowing the offset and delay between the agents to be measured.Both platforms exchange data about their measured time and pose through a UDP/IP protocol over the internet. This approach was validated with the execution of simulated operations. A first demonstrative experiment was also performed showing the possibility to realize leader/follower coordinated operations. The results of the simulations and experiments showed communication delays on the order of tens of milliseconds with no significant impact on the control performance. Consequently, the suggested protocol was proven to be adequate for conducting coordinated experiments in real time between remote laboratories.


2021 ◽  
pp. 117-123
Author(s):  
Waldemar Jenek ◽  
◽  
Glenda Caldwell ◽  
Jared Donovan ◽  
Veronica Garcia-Hansen ◽  
...  

This paper examines a case study part of an ongoing PhD research at Queensland University of Technology, Brisbane, Australia. The case study investigates how architecture students can employ media architecture design with real-time-render software tools to empower people without permanent residence. As part of the assignment students developed a media architecture structure during the semester to support people who are facing homelessness. The target participants of this study were master architecture students at Queensland University of Technology. Students participated in an online survey and semi-structured interviews at the end of the semester to provide feedback about their learning experience during the master class. The data was analysed with thematic analysis. The study results explore the potential of technology to face the ongoing issues of homelessness. It opens the discussion how media architecture can be utilised to target issues such as displacement and marginalization. The results allow to refine future studio education and endeavour how to employ real-time software in a studio context.


2020 ◽  
Vol 26 (2) ◽  
pp. 20-27
Author(s):  
ABRAHAM OLATIDE AMOLE ◽  
KAZIM IDOWU OKUSAGA ◽  
OLUFEMI OLANREWAJU ODEKUNLE ◽  
IKECHUKWU JOSEPH ODITA

Distribution transformer being major equipment in utility companies deserves to be routinely scrutinized for its performance with a view to ensure continuous supply of energy to end-users as well as to sustain improved revenue collection by the utility company. Presented in this paper is the real time assessment of 500-kVA, 11/0.415 kV distribution transformer situated at Bells University of Technology, Ota, Ogun State using power quality and energy analyzer equipment. The parameters measured on real time include phase to neutral voltage, phase to phase voltage, root mean square and peak current, frequency, active power, reactive and apparent power and line power factor. The assessment revealed wide variation of system voltages far from the standard, however, the line power factor and as well as frequency of operation was observed to be within the standard. Based on this analysis, several findings and appropriate recommendations were suggested to improve the supply of energy in the study area. It is hope that the findings of this research will be of immense benefit to distribution engineers at the Department of works in Bells University of Technology, Ota for field compliance.


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