Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Mario Zaja"'
Publikováno v:
High Voltage (2020)
Ultra-fast disconnector (UFD) is a key component of hybrid DC circuit breakers and it is also studied as the main switch in some DC grid topologies. A UFD model suitable for DC grid studies and considering both normal operation and failure mode is pr
Externí odkaz:
https://doaj.org/article/b033dd7a23584e49964cab5fc05dba5e
Autor:
Dragan Jovcic, Mario Zaja
Publikováno v:
International Journal of Electrical Power & Energy Systems. 113:129-138
A major and very important challenge in dc grid development is maintaining continuous converter operation under dc faults. This paper proposes a novel capacitive energy storage device which improves security of dc grids by avoiding terminal blocking.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::acb0d1bbefe476f67c989e37fcb40eff
https://doi.org/10.1016/j.ijepes.2019.05.040
https://doi.org/10.1016/j.ijepes.2019.05.040
HVDC grid protection with adequate speed and reliability is required to minimise the impact of DC faults. In particular, fast breaker failure backup protection algorithms are needed to meet the expected reliability requirements of HVDC grids. In this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c977c5b7120e9676bddecada7459904d
https://lirias.kuleuven.be/handle/123456789/665086
https://lirias.kuleuven.be/handle/123456789/665086
Publikováno v:
2020 IEEE Power & Energy Society General Meeting (PESGM).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee30dfc7e40b34825b285fbcb213a118
https://doi.org/10.1109/pesgm41954.2020.9926208
https://doi.org/10.1109/pesgm41954.2020.9926208
Autor:
Mario Zaja, Dragan Jovcic
Publikováno v:
2020 IEEE Power & Energy Society General Meeting (PESGM).
Because of high energy absorption requirements, the energy absorbers in DC circuit breakers will consist of a large number of series- and parallel-connected surge arrester units. This study shows that owing to highly nonlinear I-V characteristic of s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed8692922ace455103a13cd230420c30
https://doi.org/10.1109/pesgm41954.2020.9281537
https://doi.org/10.1109/pesgm41954.2020.9281537
Publikováno v:
IEEE Transactions on Power Delivery
This paper examines two new bidirectional hybrid dc circuit breaker (CB) topologies for application in meshed dc grids. The goal is to retain performance of hybrid dc CB with bidirectional current interruption while reducing semiconductor count, dc C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::038ef904ef168453df1ab772f0b90bf3
Autor:
Dragan Jovcic, Mario Zaja
Publikováno v:
15th IET International Conference on AC and DC Power Transmission (ACDC 2019).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a29f96ddbd497b124f1d493063a7a48c
https://doi.org/10.1049/cp.2019.0036
https://doi.org/10.1049/cp.2019.0036
Publikováno v:
2018 IEEE Power & Energy Society General Meeting (PESGM).
Maintaining continuous voltage source converter operation under DC faults is one of main challenges in protection of DC transmission grids. In order to limit converter fault current below overcurrent tripping threshold (2-3 p.u.), impractically large
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5a06e37d1095182682663ab4be717ac
https://doi.org/10.1109/pesgm.2018.8586339
https://doi.org/10.1109/pesgm.2018.8586339
Publikováno v:
2017 International Symposium on Power Electronics (Ee).
Fast detection and isolation of DC faults is recognized as the main challenge in developing DC transmission grids. Voltage source converter blocking must be prevented which can be very difficult given the large rate-of-rise of fault currents. The con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbff2570b84eaa64165a8b8331e33a0e
https://doi.org/10.1109/pee.2017.8171665
https://doi.org/10.1109/pee.2017.8171665
Publikováno v:
Zaja, M, Oprea, M, Suárez, C G & Mathe, L 2014, Electric vehicle battery charging algorithm using PMSM windings and an inverter as an active rectifier . in Proceedings of the 2014 IEEE Vehicle Power and Propulsion Conference (VPPC) . IEEE Press, The 2014 IEEE Vehicle Power and Propulsion Conference (VPPC), Coimbra, Portugal, 27/10/2014 . https://doi.org/10.1109/VPPC.2014.7007057
A major setback for large scale electric vehicle market expansion compared to their internal combustion competitors consists in their high price and low driving range. One way of reducing the cost, dimensions and mass of electric vehicles is to elimi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::838b9fa3b73cfc615865c04b4df9c840
https://doi.org/10.1109/vppc.2014.7007057
https://doi.org/10.1109/vppc.2014.7007057