Bipolar-type DC microgrids for high-quality power distribution

Book chapter (2018)

Authors

Sebastian Rivera Universidad Técnica Federico Santa María
Ricardo Lizana Universidad Católica de la Santísima Concepción
Samir Kouro Universidad Técnica Federico Santa María
Bin Wu Toronto Metropolitan University
Affiliation
External organisation
Distributed power generation Power system control Bipolar LVDC networks Bipolar structure Bipolar-type DC microgrids Control of electric power systems Distribution control schemes Distribution converter topologies High-quality power distribution LVDC active networks Power conversion stages Power convertors Power convertors and power supplies to apparatus Power distribution control Uninterrupted power delivery Unipolar architectures
More Info
expand_more

Published Date

01-01-2018

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Affiliation

External organisation

Abstract

During the last decades, AC systems dominated the power transmission and distribution applications almost exclusively. However, a recent convergence of needs originated in different sectors (renewable energy conversion, information technology and transportation) have accelerated the development of DC systems. Nowadays, DC systems are present at both transmission and distribution levels, offering high-performance solutions with enhanced efficiency and reliability, besides reducing the number of power conversion stages involved and uninterrupted power delivery. For LVDC active networks, two kinds of architectures are possible: unipolar and bipolar. Despite being a more sophisticated and technically complex solution, bipolar structure provide several advantages over conventional unipolar ones. Higher availability, efficiency and flexibility are just a few advantages featured by bipolar systems. This chapter presented a brief overview covering the different aspects of bipolar LVDC networks. Distribution converter topologies, balancing stages and also their control schemes are discussed in order to highlight the efforts being made in this growing architecture.