Generatori za mikro-hidroelektrane

undergraduate thesis

• Title (english): Generators for micro-hydropower plants
• Author: Hrvoje Matić
• Mentor: Stjepan Stipetić (mentor)
• Committee member: Stjepan Stipetić (predsjednik povjerenstva)
• Committee member: Zlatko Hanić (član povjerenstva)
• Committee member: Nikša Ćavar (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2020-09-07, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Mikro-hidroelektrane imaju raspon raspoložive snage od 5 kW do 100 kW. Mikro-hidroelektrane grade se blizu potrošača da se gubitci u prijenosu svedu na minimum. Ovisno o količini protoka, visini pada i dostupnim resursima, u mikro-hidroelektrane najčešće se postavlja jedna od sljedećih turbina: Pelton, turbina s kružnim protokom, Kaplan, Francis ili pumpa kao turbina. Pumpa kao turbina je posebno zanimljiva jer je znatno jeftinija od ostalih turbina, ali ima nešto manju učinkovitost i smanjene mogućnosti učinkovitog upravljanja. Za mikro-hidroelektrane koriste se asinkroni i sinkroni generatori. Asinkroni generatori su jeftiniji, a sinkroni generatori su učinkovitiji. Protok u mikro-hidroelektranama stalno varira te je poželjno implementirati pogon s promjenjivom brzinom radi postizanja veće učinkovitosti i usklađivanja s elektroenergetskom mrežom.

Abstract (english)

Micro-hydropower plants have a range of available power from 5 kW to 100 kW. Micro-hydropower plants are built close to the consumer to minimize transmission losses. Depending on the amount of flow, head and the resources available, micro-hydropower plants have often one of the following turbines installed: Pelton, cross-flow, Kaplan, Francis or pump as a turbine. Pump as a turbine is particularly interesting because it is significantly cheaper than other turbines but has slightly lower efficiency and reduced management capabilities. Asynchronous and synchronous generators are used for micro-hydropower plants. Asynchronous generators are cheaper, and synchronous generators are more efficient. The flow in micro-hydropower plant constantly varies and it is desirable to implement variable speed control to achieve greater efficiency and harmonize with electric grid.

• Keywords: mikro-hidroelektrane; generatori; turbine; pogon s promjenjivom brzinom; pumpa kao turbina
• Keywords (english): micro-hydropower plants; generators; tubines; variable speed control; pump as turbines
• Language: croatian
• URN:NBN: urn:nbn:hr:168:316489
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-01-13 15:33:50