Zobrazeno 1 - 10
of 1 867
pro vyhledávání: '"Dc current"'
Publikováno v:
Zhejiang dianli, Vol 43, Iss 8, Pp 47-56 (2024)
Hybrid DC transmission systems are prone to DC current oscillations as the parameters of constant DC current controller increase， an oscillation suppression strategy based on virtual resistance is proposed. This strategy generates an additional vol
Externí odkaz:
https://doaj.org/article/77cc0acd9a9f4a508f00da35e43e141e
Research on the Design of Operating Condition of Multi-Resistance Superconducting DC Current Limiter
Autor:
Qin YIN, Jinchuan GUO
Publikováno v:
南方能源建设, Vol 10, Iss 5, Pp 17-23 (2023)
[Introduction] The working principle of the resistive superconducting current limiter is based on the zero resistance effect of the superconductor, which is connected in series in the line and basically has no resistance during normal operation. When
Externí odkaz:
https://doaj.org/article/7c84f99a76aa409a9ccd1774af5759de
Publikováno v:
Energy Reports, Vol 9, Iss , Pp 353-362 (2023)
When asynchronous motors, especially double-fed asynchronous motors in large capacity pump storage are the main loads in the high voltage direct current (HVDC) receiving end power grid, the increase of the equivalent slip of asynchronous motor load m
Externí odkaz:
https://doaj.org/article/045e7341706447f5988d57df4a3baf12
Autor:
Shenghu Li, Yikai Li
Publikováno v:
IET Generation, Transmission & Distribution, Vol 17, Iss 8, Pp 1902-1917 (2023)
Abstract For the ultra high‐voltage dc (UHVDC) transmission with hierarchical connection mode (HCM) at the inverter side, local commutation failure (LCF) at one layer after the ac fault may cause concurrent commutation failure (CCF) at the non‐fa
Externí odkaz:
https://doaj.org/article/522f8afe84f74fc5addb849da64bfa9d
Publikováno v:
Energy Reports, Vol 9, Iss , Pp 904-911 (2023)
The injection of dc current offset into ac networks may impacted the lifespan of the distribution system equipment including isolation transformers and measurement devices and in serious event may cause equipment’s malfunction. This paper intents t
Externí odkaz:
https://doaj.org/article/79c1c1a119a54637b6cf068ad5e3f131
Autor:
Barik, Subrat Kumar
Publikováno v:
COMPEL -The international journal for computation and mathematics in electrical and electronic engineering, 2022, Vol. 42, Issue 2, pp. 302-322.
Publikováno v:
IEEE Access, Vol 11, Pp 53634-53642 (2023)
To inhibit commutation failure (CF), in this paper, the influence factors of CF were analyzed, and considering different fault types and different valves, the mathematical expression of extinction angle was deduced. In addition, by analyzing existing
Externí odkaz:
https://doaj.org/article/888b49c081284eed81cffa36eeebed8d
Publikováno v:
Journal of Modern Power Systems and Clean Energy, Vol 11, Iss 3, Pp 1020-1026 (2023)
For the safe and fast recovery of line commutated converter based high-voltage direct current (LCC-HVDC) transmission systems after faults, a DC current order optimization based strategy is proposed. Considering the constraint of electric and control
Externí odkaz:
https://doaj.org/article/c76c06f240714930832ca97f37a34a92
Publikováno v:
Zhejiang dianli, Vol 42, Iss 1, Pp 39-45 (2023)
Direct-hanged energy storage of voltage source converters （VSCs） on the DC side can be applied to active or reactive power grids. It has the advantages of peak shaving and valley filling， reducing wind and photovoltaic power curtailment. Given
Externí odkaz:
https://doaj.org/article/b8bca3c5b4924138b81fb6ab89540739
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