Zobrazeno 1 - 10
of 124
pro vyhledávání: '"Robert E. Betz"'
Publikováno v:
IEEE Transactions on Industry Applications. 55:2611-2619
© 1972-2012 IEEE. Techniques for parameter determination of induction and doubly fed induction machines are well established. However, these techniques do not apply directly to the brushless doubly fed reluctance machine (BDFRM). Even though the mat
Publikováno v:
Taul, M G, Betz, R E & Blaabjerg, F 2020, Rapid Impedance Estimation Algorithm for Mitigation of Synchronization Instability of Paralleled Converters under Grid Faults . in Proceedings of the 2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe) ., 9215866, IEEE Press, EPE'20 ECCE Europe: 22nd European Conference on Power Electronics and Applications, Lyon, France, 07/09/2020 . https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215866
Paralleled grid-connected converters operated as grid-following structures are vulnerable to transient synchronization instability during grid faults. This paper mathematically describes the instability phenomenon of paralleled converters and why it
Publikováno v:
2019 29th Australasian Universities Power Engineering Conference (AUPEC).
A number of disruptive technologies are expected to impact on future power systems (PS). Electric vehicles (EV), photovoltaic systems (PV), wind turbines (WT), energy storage systems (ESS), vehicle to grid (V2G), and demand response (DR) are seen as
Autor:
Robert E. Betz
Publikováno v:
2019 29th Australasian Universities Power Engineering Conference (AUPEC).
The Double Fed Induction Generator is commonly used in wind turbine systems. However, because one of its windings is directly connected to the grid, grid faults can result in significant over-currents and/or voltages in the rotor side converter (RSC)
Autor:
Mads Graungaard Taul, Robert E. Betz
Publikováno v:
Betz, R & Taul, M G 2019, Identification of Grid Impedance During Severe Faults . in 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019 ., 8911873, IEEE Press, IEEE Energy Conversion Congress and Exposition, pp. 1076-1082, 2019 IEEE Energy Conversion Congress and Exposition (ECCE), Baltimore, Maryland, United States, 29/09/2019 . https://doi.org/10.1109/ECCE.2019.8911873
Grid-connected converters, when subject to grid fault conditions, should stay connected and support the network voltage via reactive power injection. The fulfilment of this requirement strongly depends on the dynamics and stability of the converter c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::618f3d406a6a8f019cdd3b3e9b96204d
https://vbn.aau.dk/da/publications/5e75b0d0-94b8-4b36-94fd-8441cfa0bdb5
https://vbn.aau.dk/da/publications/5e75b0d0-94b8-4b36-94fd-8441cfa0bdb5
Publikováno v:
2018 7th International Conference on Renewable Energy Research and Applications (ICRERA).
Power systems around the world continue to change with the increasing adoption of distributed generation in the form of renewable energy technologies. The increasing penetrations of intermittent renewable energy technologies necessitates improvements
Publikováno v:
IEEE Transactions on Industrial Electronics. 62:6684-6696
Phase-shifted carrier modulation is an industry standard in its application to multilevel H-bridge converters. The major advantage of this scheme over level-shifted and space vector modulation schemes is its inherent ability to evenly distribute loss
Autor:
Robert E. Betz
Publikováno v:
2017 IEEE Southern Power Electronics Conference (SPEC).
Current clamp is a term that describes the current staying at zero for extended periods of time upon current direction reversal in a inverter driven load. It is caused by the dead-time in the inverter that is required to prevent current shoot-through
Publikováno v:
2017 IEEE Southern Power Electronics Conference (SPEC).
The Modular Multilevel Converter (MMC) is becoming a favoured topology for high voltage applications due to its performance, flexibility in control and its modular and scalable design which allow it to be used over a wide variety of system voltage le
© 2017 IEEE. In this paper a prototype brushless doubly-fed reluctance machine is investigated which is aimed a meeting commercial machine performance figures. The machine has 4 and 8 pole 3-phase stator windings and a 6 pole radiallylaminated ducte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62f3a0a65f1b8c313511325b3b6c8bb3
https://hdl.handle.net/10453/126792
https://hdl.handle.net/10453/126792