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ID number:366073
 
Author:
Evaluation:
Published: 12.08.2024.
Language: Latvian
Level: College/University
Literature: n/a
References: Not used
Time period viewed: 2021 - 2025 years
Extract

Dots līdzsprieguma avots ar spriegumu (450+0+1=451)V. Tam pievienots trīsfāzu sprieguma invertors – 1) ar
taisnstūra formas izejas spriegumu; 2) ar sinus modulētu izejas spriegumu. Slodzes rezistance katrai zvaigznes fāzei
(1+1=2)omi, induktivitāte fāzei (5+0=5)mH. Frekvence f=(500+0+1=501)Hz. Noteikt fāzes strāvas efektīvo vērtību!
Modulācijas gadījumā Uzm=20V, vadības sprieguma amplitūda (10+1=11) V, zāģsprieguma frekvence 10f.Uzzīmēt
shēmu! Pārbaudīt ar Virtuallab (1 – 3-phase square inverter with star-load; 2 – Virtuallab2 – Voltage source inverter
(sine mod.)).
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