Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Hengxu Ha"'
Publikováno v:
The Journal of Engineering. 2018:1109-1113
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9913754473e0c07a6ebe71e75ec85ef6
https://doi.org/10.1049/joe.2018.0236
https://doi.org/10.1049/joe.2018.0236
Autor:
Sarath B. Tennakoon, Monday Ikhide, Sankara Subramanian, Andrzej J. Adamczyk, Hengxu Ha, Alison Griffiths
Publikováno v:
The Journal of Engineering. 2018:1267-1273
This study presents a novel time-domain protection technique for application to DC grids. The technique utilises the power developed by the forward and backward travelling waves produced by a fault to distinguish between internal and external faults.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::039b8da3150c832f31b5c1af9660399a
https://doi.org/10.1049/joe.2018.0186
https://doi.org/10.1049/joe.2018.0186
Publikováno v:
CIRED - Open Access Proceedings Journal. 2017:1317-1321
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::accf5363041424940a038440b3b819db
https://doi.org/10.1049/oap-cired.2017.0863
https://doi.org/10.1049/oap-cired.2017.0863
Publikováno v:
2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC).
This paper presents a transient based protection principle utilising the magnitude of the travelling wave power derivative at only local terminal to formulate a non-unit protection scheme, where the directional transient relay and boundary relay have
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::848fa0c2287975cad63f7c8e114f9545
https://doi.org/10.1109/cobep/spec44138.2019.9065336
https://doi.org/10.1109/cobep/spec44138.2019.9065336
Publikováno v:
2019 72nd Conference for Protective Relay Engineers (CPRE).
Dynamic line rating current is widely used in the smart grid for improving the efficiency and economy of the power transmission and distribution. The rating current is determined by the ambient parameters such as convection heat loss rate, solar radi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cd4a3f19347a8d70a9409befef624f0
https://doi.org/10.1109/cpre.2019.8765875
https://doi.org/10.1109/cpre.2019.8765875
Publikováno v:
2017 70th Annual Conference for Protective Relay Engineers (CPRE).
Current differential protection is based on Kirchhoff s current law. Protection relays in different parts of the network analyse the vector sum of the measured currents and detect faults in the protected area as show in Figure 1. Differential definit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ae9eb9e65f3bc077638473958b9e751
https://doi.org/10.1109/cpre.2017.8090040
https://doi.org/10.1109/cpre.2017.8090040
Autor:
Hengxu Ha, Sankara Subramanian
Publikováno v:
2017 70th Annual Conference for Protective Relay Engineers (CPRE).
With the integration of various distributed generators (DGs), traditional distribution networks have been transforming into active distribution networks (ADN). One typical challenge of the integration of DGs is that the fault current can possibly exc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6abd086dd0d8c6e43fa3084f0336b5f
https://doi.org/10.1109/cpre.2017.8090044
https://doi.org/10.1109/cpre.2017.8090044
Autor:
Sarath B. Tennakoon, Alison Griffiths, Andrzej J. Adamczyk, Monday Ikhide, Sankara Subramanian, Hengxu Ha
Publikováno v:
Sustainable Energy, Grids and Networks. 17:100195
This paper presents a transient and non-unit-based protection scheme for consideration in DC grids of the future. The technique utilises the rate-of-change (R-o-C) of the associated travelling wave components following the occurrence of a fault to de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb28cdef985a0811b5112e25d8167717
https://doi.org/10.1016/j.segan.2019.100195
https://doi.org/10.1016/j.segan.2019.100195
Publikováno v:
University of Strathclyde
The 13th IET International Conference on Developments in Power System Protection 2016
Scopus-Elsevier
The 13th IET International Conference on Developments in Power System Protection 2016
Scopus-Elsevier
The DC-side line faults in high-voltage direct-current (HVDC) systems utilising voltage-source converters (VSCs) are a major concern for multi-terminal HVDC systems in which complete isolation of the faulted system is not a viable option. A number of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ced075edcbff75844d998b868c1c4661
https://doi.org/10.1049/cp.2016.0043
https://doi.org/10.1049/cp.2016.0043
Publikováno v:
8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016).
This work presents the outcome of a comprehensive study that assesses the transient behaviour of two high voltage direct current (HVDC) networks with similar structures but using different converter topologies, termed two-level and half-bridge (HB) m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3dc91f4a95cb7e2b4334aaf39fffac6
https://doi.org/10.1049/cp.2016.0263
https://doi.org/10.1049/cp.2016.0263