Zobrazeno 1 - 10
of 2 171
pro vyhledávání: '"short-circuit fault"'
Publikováno v:
Shanghai Jiaotong Daxue xuebao, Vol 58, Iss 6, Pp 798-805 (2024)
Fast and accurate analysis of the short-circuit characteristics of large wind farms has important engineering application value, and the short-circuit characteristics of wind farms under the influence of the wake effect vary greatly. Therefore, it is
Externí odkaz:
https://doaj.org/article/1ac588c5adb24e25997e0d084be1ca92
Publikováno v:
Frontiers in Energy Research, Vol 12 (2024)
In power systems, potential transformers (PTs) are responsible for stepping down high voltage to low voltage. However, a short circuit between turns on the primary side of a generator outlet PT can significantly reduce the secondary phase voltage, le
Externí odkaz:
https://doaj.org/article/ec22750083df4e71b2ae1f15244a2aff
Publikováno v:
International Journal of Electrical Power & Energy Systems, Vol 163, Iss , Pp 110348- (2024)
The global new photovoltaic installed capacity reached 345.5GW in 2023. As the installed capacity of photovoltaic power generation systems increases worldwide, there is a growing demand for circuit breakers to withstand higher voltages on the DC side
Externí odkaz:
https://doaj.org/article/31cede63d37d474ab5e61e31ac3c3455
Publikováno v:
IEEE Access, Vol 12, Pp 87807-87815 (2024)
During the fault process of the ultra-high voltage direct current (UHVDC) system, the winding of the large-capacity synchronous condenser (SC) generates strong impulse current, leading to excessive eddy current losses and easily causing local overhea
Externí odkaz:
https://doaj.org/article/ab3efc8b9ee84f91b8dc5d6d280bad38
Publikováno v:
IEEE Access, Vol 12, Pp 57315-57325 (2024)
To cancel harmonics and get fundamental back EMFs for precise rotor position and speed estimations under short-circuit (SC) fault, this article introduces a new sensorless fault-tolerant control method for 5-phase PMSM using a sigmoid sliding mode ob
Externí odkaz:
https://doaj.org/article/20b9b06bad954c0e8537d91c63535b5f
Publikováno v:
电力工程技术, Vol 43, Iss 1, Pp 238-245 (2024)
The inter-turn short circuit fault of wingding is a typical serious fault of the new synchronous condenser, which has a serious impact on the long-term operation of the condenser and the stability of the power grid. In order to ensure the reliable an
Externí odkaz:
https://doaj.org/article/b0733b67fc07460c8042209d17793d9d
Publikováno v:
Zhejiang dianli, Vol 43, Iss 1, Pp 99-107 (2024)
DC fault current limiters can rapidly restrict the rise of fault currents， but attention needs to be paid to their dynamic current-limiting characteristics during fault impact. To address this， a study on the fault impact characteristics of a res
Externí odkaz:
https://doaj.org/article/3f21288769e140debfd1806a2678e1d3
Publikováno v:
工程科学学报, Vol 45, Iss 12, Pp 2162-2172 (2023)
With the continuous consumption of traditional fossil fuels, people have gradually started to realize the importance of protecting the environment. Therefore, new clean energy sources like wind power have been gradually receiving considerable attenti
Externí odkaz:
https://doaj.org/article/5cad657961804667a61010be116761cc
Publikováno v:
Applied Sciences, Vol 14, Iss 20, p 9570 (2024)
The challenge in developing an AI deep learning model for motor health diagnosis is hampered by the lack of sufficient and representative datasets, leading to considerable time and resource consumption in research. Therefore, this paper focuses on th
Externí odkaz:
https://doaj.org/article/d3199c6a543b49f5b13126e299673219
Autor:
Lujian Dai, Jun Zhao, Meng Guo, Shuguo Gao, Chenmeng Xiang, Bin Wei, Weiqi Qin, Guoming Ma, Yuan Tian
Publikováno v:
Energies, Vol 17, Iss 19, p 4862 (2024)
In recent years, as the power grid continues to expand, the issue of asymmetrical short-circuit currents exceeding limits on the 220 kV medium-voltage side has become increasingly severe, and traditional current-limiting methods have certain limitati
Externí odkaz:
https://doaj.org/article/f5439096d399416984feeb5ca62529f1