Optimiranje potrošnje električne energije frekvencijskih pretvarača

master's thesis

• Title (english): Optimization of electrical energy consumption of frequency converters
• Author: Ante Lozić
• Mentor: Danijel Pavković (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2024-07-15, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering; Automation and Robotics

Abstract

Napretkom tehnologije i porastom broja potrošača rastu zahtjevi za energetskim resursima. To kao posljedicu ima težnju za uštedom i optimizacijom električne energije te smanjenjem gubitaka kako u komercijalne svrhe tako i u industriji. U industriji elektromotornih pogona postoji velik potencijal za uštedu električne energije. Ključna komponenta za optimiranje je frekvencijski pretvarač. Frekvencijski pretvarač ima mogućnost dodavanja komponenti u sustav koje utječu na mrežne parametre prilikom rada elektromotora. Dodatna oprema za optimiranje su razne prigušnice, filtri i regeneracijske jedinice. Prilikom projektiranja sustava trebaju se provesti provjere kompatibilnosti dodatne opreme s elektromotorima i frekvencijskim pretvaračima, da bi osigurali sigurnu integraciju i rad.

Rad uključuje :

• Pregled problematike kod upotrebe frekvencijskog pretvarača
• Pregled moguće nadogradnje frekvencijskog pretvarača
• Pregled dodatne opreme i njihova namjena
• Integracija dodatne opreme u laboratorijski simuliranom sustavu
• Analiza dobivenih rezultata i usporedba s teorijskim tvrdnjama
• Analiza mogućnosti uštede električne energije prema dobivenim rezultatima
• Analiza isplativosti ugradnje dodatne opreme naspram uštede koju generira

Abstract (english)

With the advancement of technology and the increasing number of consumers, the demand for energy resources is rising. This results in a drive for saving and optimizing electrical energy and reducing losses in both commercial and industrial sectors. In the industry of electric motor drives, there is significant potential for saving electrical energy. The key component for optimization is the frequency converter. The frequency converter has the ability to add components to the system that affect network parameters during motor operation. Additional equipment for optimization includes various chokes and filters. When designing the system, compatibility checks of additional equipment with electric motors and frequency converters must be carried out to ensure safe integration and operation.
The research includes:
• Review of possible upgrades to the frequency converter
• Review of additional equipment and their purpose
• Integration of additional equipment in a laboratory simulated system
• Analysis of obtained results and comparison with theoretical claims
• Analysis of potential energy savings according to obtained results
• Analysis of the cost-effectiveness of installing additional equipment versus the savings it generates

• Keywords: Frekvencijski pretvarač; Istosmjerna prigušnica; električna energija; harmoničke smetnje; analiza isplativosti
• Keywords (english): Frequency converter; DC choke; electrical energy; harmonic disturbances; cost-effectiveness analysis
• Language: croatian
• URN:NBN: urn:nbn:hr:235:597483
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-07-11 11:19:47