Title :
A DC-DC converter adequate for alternative supply system applications
Author :
Pacheco, V.M. ; Freitas, L.C. ; Vieira, J.B., Jr. ; Coelho, E.A.A. ; Farias, V.J.
Author_Institution :
Faculdade de Engenharia Eletrica, Univ. Fed. de Uberlandia, Brazil
Abstract :
The proposed DC-DC system introduced in this work provides output voltage regulation and control of energy flow between a battery bank and the output DC bus. A simple structure, composed by a DC-DC converter and a battery energy storage, is able to compensate power and voltage fluctuations in supply grid and to provide protection against power outages. The proposed system operates in various modes of operation, according to load needs and supply grid limitations, and is suitable for alternative system applications. A general concept is formulated. Operating principle and theoretical analysis are described. Digital simulation and experimental results of a 1.5 kW, operating at 50 kHz are included for different modes of operation, supporting the validity of the concept
Keywords :
DC-DC power convertors; battery storage plants; compensation; load flow; power system protection; voltage control; voltage regulators; 1.5 kW; 50 kHz; DC-DC converter; battery energy storage; energy flow control; output voltage regulation; power compensation; renewable energy sources; voltage fluctuations compensation; Batteries; DC-DC power converters; Energy storage; Regulators; Solar energy; Solar power generation; Uninterruptible power systems; Voltage control; Voltage fluctuations; Wind energy generation;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2002. APEC 2002. Seventeenth Annual IEEE
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-7404-5
DOI :
10.1109/APEC.2002.989377
