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Screw conveyors are the fourth biggest energy consumption group of industrial electrical motors. In this thesis, sensorless frequency converter systems are researched with main objective in maximizing energy efficiency. ...

The continuous rise in electricity demand across the globe has been a major source of carbon dioxide (CO2) emissions and other gases such as greenhouse gases (GHGs) resulting from the excessive use of crude oil and fossil ...

Monet sähkömoottoreilla toimivat pumppujärjestelmät ovat vaikeissa paikoissa huollon kannalta. Niiden kunnosta ja toiminnasta olisi kuitenkin hyvä pitää tarkkaa seurantaa, sillä vikaantuessaan ne voivat aiheuttaa suuria ...

The demand for higher rotational speeds and the more and more challenging work environments have pushed magnetic bearings and bearingless machines to be an extensive multidisciplinary field of research. Magnetic bearings ...

ABB Virtual Drive is a software tool for simulating electric drive system. In this thesis different use cases and challenges for this software were studied. New and improved electric drive simulator was created and integrated ...

Rapid development of electric vehicles could eventually expand to sparsely populated areas, where power loads are relatively low. A vast portion of rural distribution networks was built at the time when the expected power ...

Diplomityön aiheena oli kehittää ruuvikiinnitteisten sähköliitoskomponenttien tuotekehitysprosessia suomalaisessa teollisuusyrityksessä. Diplomityön teoreettisessa osuudessa tarkasteltiin sähköliitoksen luotettavuuteen ...

Testing the programmable logic controller (PLC) software part of a control system before the system is commissioned and all the field devices are available and functional is challenging. In this thesis a simulation tool ...

In this thesis the design characteristics of a direct-on-line (DOL) permanent magnet synchronous generator (PMSG) are investigated with respect to the European Union Com-mission Regulation (EU) 2016/631. The design ...

Tässä kandidaatintyössä tavoitteena on selvittää pienjänniteverkkoinfran kestävyys Suomessa, kun sähköautoilu lisääntyy sekä onko verkon tehonsiirtokapasiteettia kasvatettava tämän vuoksi. Sähköautojen määrän kasvusta ...