Search results

Filters

  • Journals
  • Authors
  • Keywords
  • Date
  • Type

Search results

Number of results: 3
items per page: 25 50 75
Sort by:
Download PDF Download RIS Download Bibtex

Abstract

This article discusses the most important issues regarding the implementation of digital algorithms for control and drive technology in industrial machines, especially in open mining machines. The article presents the results of tests in which the algorithm and drive control parameter settings were not selected appropriately for voltage-fed induction motors, and where the control speed was not verified by any of the available motoring or simulation methods. We then show how the results can be improved using field-oriented control algorithms and deep parameters analysis for sensorless field-oriented performance.
Go to article

Bibliography

[1] Kaczynski P., Czmochowski J., Analysis of causes for cracks in the connection of the swivel drawbar with crawler beam of the feeder vehicle, Mechanical Faculty, Wrocław University of Technology, Mining and Geoengineering, Book 2, no. 33, pp. 169–177 (2009).
[2] Sokolski P., Sokolski M., Evaluation of resistance to catastrophic failures of large-size caterpillar chain links of open-pit mining machinery, Eksploatacja i Niezawodnosc – Maintenance and Reliability 2014, vol. 16, no. 1, pp. 80–84 (2014).
[3] Anuszczyk J., Jabłonski M., Modification of the sensorless algorithm for controlling the drives of the tracks of the ZGOT Roller, Mining Institute of the Wrocław University of Technology, no. 112, pp. 69–76 (2005).
[4] Anuszczyk J., Jabłonski M., Research of electromechanical power units of the ZGOT, International Congress of Surface Mining, Bełchatów (2009).
[5] Kanczewski P., Kowalczyk P., ZGOT-15400.120 first Polish 200,000, Scientific work of the Mining Institute PWr. III International Congress of Lignite Mining, Bełchatów, pp. 213–221 (2002).
[6] Jabłonski M., Borkowski P., Replacement of control systems with implementation of digital inverter drive technology in surface mining machines, Conference KOMTECH 2020, to be published.
[7] Paszek W., Dynamic of alternating current electrical machines, Helion, Gliwice (1998).
[8] Pełczewski W., Krynke M., Variable State Method in Drive System Analysis, WNT, Warszawa (1984).
[9] Tunia H., Kazmierkowski M., Automation of converter dries systems, PWN, Warszawa (1987).
[10] Technical documentation, engineering manual and compendium for SIMOVERT MASTERDRIVES, Automation and Drives, Variable-Speed Drive Systems, Erlangen 1999-2012, Siemens AG (2020).
[11] Technical documentation, engineering manual and compendium for SINAMICS drives, Automation and Drives, Variable-Speed Drive Systems, Erlangen 1999-2012, Siemens AG (2020).
[12] Jabłonski M., Analysis of functional parameters and modification of control algorithms of field-oriented inverter drive with induction motor, PhD., Faculty of Electrical Engineering, Electronics, Computer Science and Automation PŁ, Łódz (2006).
Go to article

Authors and Affiliations

Mariusz Jabłoński
1
Piotr Borkowski
1
ORCID: ORCID

  1. Lodz University of Technology, Poland
Download PDF Download RIS Download Bibtex

Abstract

The article presents how multi-layered urban lighting projects fit into the programs of integrated activities to improve the living conditions of the local community, the surrounding space, and its economic relations. The role of the electric lighting in revealing the night image of the city, its promotion and public spaces transformations offering new impressions to city residents is growing thanks to the use of the SSL technology. The authors focus on a role of outdoor lighting projects in urban regeneration within the selected urban areas. The paper describes how conscious shaping of lighting by analysing the goals and stages of the project can contribute to the improvement of quality in the processes of renewal of degraded urban areas.

Go to article

Authors and Affiliations

Natalia Sokół
Katarzyna Rusek
Download PDF Download RIS Download Bibtex

Abstract

This paper is devoted to the application of ultrasonic wave propagation phenomena for the diagnostics of prestressed, concrete, bridge T-beams. A multi-point damage detection system is studied with use of numerically obtained data. The system is designed to detect the presence of the material discontinuities as well as their location.

Go to article

Authors and Affiliations

A. Mariak
K. Wilde

This page uses 'cookies'. Learn more