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Analiza energijske učinkovitosti sodobnih frekvenčno vodenih elektromotorskih pogonov
ID KARO, JAKA (Author), ID Lavrič, Henrik (Mentor) More about this mentor... This link opens in a new window

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Abstract
V magisterskem delu so predstavljene meritve sinhronskega reluktančnega motorja (SynRM) in asinhronskih motorjev (AM) s kratkostično kletko. Uporabljen sinhronski reluktančni motor, voden z ABB frekvenčnim pretvornikom (FP), dosega izkoristke razreda IE5. Cilj meritev je preveriti ali sinhronski reluktančni motor dosega tovrstne izkoristke tudi s frekvenčnim pretvornikom drugega proizvajalca. Z asinhronskim motorjem razreda IE3 z nameščenim tuje gnanim ventilatorjem smo opravili meritve pri različnih vrtljajih in obremenitvah preizkušanega električnega motorja. Med opravljenimi meritvami smo vzporedno spremljali tudi izkoristke obeh frekvenčnih pretvornikov, ki sta napajala trenutno preizkušana motorja. Iz pridobljenih izkoristkov smo nato izračunali tudi skupni izkoristek elektromotorskega pogona. Prikazan je izračun prihrankov in stroškov investicije ventilacijskega sistema v predoru Markovec, če bi obstoječo ventilacijo zamenjali z novejšo. V sodobnem ventilacijskem sistemu je predvidena uporaba frekvenčnih pretvornikov in IE5 sinhronskih reluktančnih motorjev.

Language:Slovenian
Keywords:Električna energija, izkoristek, sinhronski reluktančni motor, asinhronski motor, ventilacijski sistem.
Work type:Master's thesis/paper
Organization:FE - Faculty of Electrical Engineering
Year:2022
PID:20.500.12556/RUL-134804 This link opens in a new window
COBISS.SI-ID:96144131 This link opens in a new window
Publication date in RUL:02.02.2022
Views:1030
Downloads:109
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Secondary language

Language:English
Title:Energy efficiency analysis of modern frequency controlled electric drives
Abstract:
In the Master's thesis, measurements of a synchronous reluctance motor and an asynchronous motor with squirrel cage are presented. The synchronous reluctance motor used in conjunction with the ABB frequency converter achieves IE5 efficiency class. Aim of the measurements is to check whether synchronous reluctance motor can also achieve IE5 rated efficiencies with frequency converters from another manufacturer. Using an IE3 classified asynchronous motor with foreign-driven cooling fan installed, we preformed measurements at different speeds and loads of the tested electric motor. During the measurments we monitored the efficiencies of both frequency converters, which drove our tested electric motors. The total efficiency of the electric motor drive was calculated from obtained efficiencies. The calculation of savings and investments of the ventilation system in the Markovec tunnel is presented. The calculation is made if the existing ventilation is replaced with the newer one. The proposed modern ventilation system includes the use of frequency converters and IE5 synchronous reluctance motors.

Keywords:Electrical energy, efficiency, synchronous reluctance motor, asynchronous motor, ventilation system.

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