Open AccessRequirement analysis of hybrid direct current breaker in multi‐terminal high‐voltage direct current grids
Author(s) -
Langwasser Marius,
De Carne Giovanni,
Liserre Marco,
Schindler Thorsten
Publication year - 2018
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.0267
Subject(s) - circuit breaker , grid , computer science , current (fluid) , high voltage direct current , mesh analysis , direct current , terminal (telecommunication) , transient recovery voltage , voltage , electrical engineering , voltage source , engineering , mathematics , telecommunications , voltage droop , geometry
Hybrid direct current circuit breakers (DCCB) are the most adopted solution to clear high DC fault currents in short time. Existing literature does not analyse recently validated commercial breakers. This article provides an overview about hybrid DCCB and a list of criteria to evaluate and compare the performance of existing or new DCCB designs. Additionally, general measures are proposed to assess the suitability of the DCCB in a specific grid situation. Accordingly, the fault current evolution under pole‐to‐pole faults in different parts of a multi‐terminal DC grid is analysed by means of mesh analysis with matrix differential equations. Finally, a grid parameter variation analysis is carried out through PSCAD‐EMTsimulations to compare the presented DCCB concepts.