Zobrazeno 1 - 10
of 3 307
pro vyhledávání: '"Zero sequence"'
Autor:
Carlos A. Souza, Gabriel Maier Cocco, Robinson F. de Camargo, Fábio E. Bisogno, Martin Wolter
Publikováno v:
Eletrônica de Potência, Vol 29 (2024)
This paper proposes a finite control set model predictive control (FCS-MPC) strategy to address voltage regulation in isolated four-wire microgeneration systems based on self-excited induction generators. The FCS-MPC approach enables a simpler and mo
Externí odkaz:
https://doaj.org/article/ddcf050733ba4d4b941ac1fdc2e29b05
Autor:
Sheng Qian, Fusheng Wang, Haihong Huang, Jingjiao Lin, Zhongma Wang, Xiangping Kong, Liangcheng Liu, Wei Tong, Guiyang Cui
Publikováno v:
Systems Science & Control Engineering, Vol 12, Iss 1 (2024)
Modular Multilevel Converters (MMCs) play a crucial role in high-voltage DC (HVDC) systems due to their adaptable control and swift response capabilities. However, AC side faults could introduce asymmetric double-line frequency components into the MM
Externí odkaz:
https://doaj.org/article/0c8a61cb92394bb4b810fe04234279c9
Autor:
Yuting Lan, Kun Yu, Xiangjun Zeng, Rong Cai, Qingbo Deng, Chenyu Wu, Shigeng He, Shijie Xu, Youcheng Jia
Publikováno v:
International Journal of Electrical Power & Energy Systems, Vol 162, Iss , Pp 110264- (2024)
The weak characteristics of high-impedance faults and the complex attributes of cross-country faults make faulty feeder detection of cross-country high-impedance faults difficult in medium-voltage networks. This paper deduces the zero-sequence equiva
Externí odkaz:
https://doaj.org/article/ba1c98d2f32b49f0ac4483c4dbe1c1ef
Publikováno v:
Zhejiang dianli, Vol 43, Iss 7, Pp 3-9 (2024)
DL/T 684—2012 Guide of Calculating Settings of Relay Protection for Large Generator Transformer （hereinafter referred to as the “2012 Guide”） has played a significant role in improving the correct operation rate of relay protection devices
Externí odkaz:
https://doaj.org/article/cb573ed22f604d1e99c0c194cff4a907
Publikováno v:
电力工程技术, Vol 43, Iss 4, Pp 253-261 (2024)
When the earth faults occur in different phases of two feeders connected to the same bus in the resonant grounding system, the conventional fault line selection devices are inaccurate. To address the difficulties of fault line selection in the earth
Externí odkaz:
https://doaj.org/article/789c91cca3744dc49633d7652d13282d
Publikováno v:
CSEE Journal of Power and Energy Systems, Vol 10, Iss 5, Pp 2255-2264 (2024)
The cluster DC voltage balancing control adopting zero-sequence voltage injection is appropriate for the star-connected cascaded H-bridge STATCOM because no zero-sequence currents are generated in the three-phase three-wire system. However, as the ze
Externí odkaz:
https://doaj.org/article/34d9a5f5a5824d94a96e06a081734bf6
Autor:
Julio Espinosa Domínguez, Osmel Perez Baluja, Amada Gabriela de la Cruz Conte, Carlos Sigas Martínez, Orlys Ernesto Torres Breffe
Publikováno v:
Revista Científica de Ingeniería Energética, Vol 45, Iss 1, Pp 1-11 (2024)
Sequence networks make it possible to represent the elements of an electrical network during unbalanced faults, according to Fortescue's theorem presented in 1918. In the case of three-phase transformers, the equivalent sequence networks depend on th
Externí odkaz:
https://doaj.org/article/9b81e1dafbf7418bb7c5d79c7df02e64
Publikováno v:
Energies, Vol 17, Iss 22, p 5640 (2024)
The overhead line (OHL)–cable hybrid transmission line, which connects floating photovoltaic (PV) power plants, needs to be considered regarding whether to block reclosing operations or not. However, due to the weak-feed characteristics of PV inver
Externí odkaz:
https://doaj.org/article/16b563cb58ed448399ff739c91591a0a
Publikováno v:
COMPEL -The international journal for computation and mathematics in electrical and electronic engineering, 2023, Vol. 42, Issue 5, pp. 1163-1174.
Publikováno v:
IET Renewable Power Generation, Vol 17, Iss 12, Pp 2997-3010 (2023)
Abstract Single phase‐earth faults are the most frequent faults likely to occur but hard to identify in distribution system, especially in a neutral un‐effectively grounded system. To address this issue, this paper innovatively proposes a typical
Externí odkaz:
https://doaj.org/article/3e8b50c922674eee9aefdddb566aea0e