Zobrazeno 1 - 10
of 318
pro vyhledávání: '"Guobing Song"'
Publikováno v:
IET Generation, Transmission & Distribution, Vol 18, Iss 16, Pp 2604-2624 (2024)
Abstract Most of the existing methods for harmonic analysis are from frequency‐domain perspective. In fact, the essential factor for generating harmonics is non‐linear characteristic or time‐varying property. Therefore, the harmonic generation
Externí odkaz:
https://doaj.org/article/ae30fbf83fc445228a59e53b7235b787
Publikováno v:
International Journal of Electrical Power & Energy Systems, Vol 161, Iss , Pp 110186- (2024)
The All-DC wind power generation system can effectively solve the harmonic resonance problem caused by large-scale wind power AC collection and transmission, gradually becoming a hot topic in future research. However, there are few studies on the rel
Externí odkaz:
https://doaj.org/article/e5d8cfeacf994d5ebb7cfc4efff5ec42
Publikováno v:
International Journal of Electrical Power & Energy Systems, Vol 160, Iss , Pp 110143- (2024)
The modular multilevel converters (MMC) based high-voltage direct-current (HVDC) grids have a fast rise rate and higher peak value of fault current. The active current limiting control (ACLC) of MMC can effectively reduce the breaking current of DC c
Externí odkaz:
https://doaj.org/article/9fc699726aa7401886ddeae239f0d870
Publikováno v:
IET Generation, Transmission & Distribution, Vol 18, Iss 8, Pp 1611-1623 (2024)
Abstract There exist problems of hard coordination and threshold setting as well as low sensitivity in overcurrent relay due to the bidirectional and small fault current when distributed generators are integrated into the distribution network. This p
Externí odkaz:
https://doaj.org/article/743c5d153a3c470f8f511f25332c03b8
Publikováno v:
Journal of Modern Power Systems and Clean Energy, Vol 12, Iss 1, Pp 202-212 (2024)
The setting work of backup protection using steady-state current is tedious, and mismatches occasionally occur due to the increased proportion of distributed generations (DGs) connected to the power grid. Thus, there is a practical need to study a ba
Externí odkaz:
https://doaj.org/article/c96f00d23bed4e848d14d5627f1a4d1c
Publikováno v:
IET Generation, Transmission & Distribution, Vol 17, Iss 24, Pp 5473-5485 (2023)
Abstract The existing relay protections for line‐commutated converter (LCC)‐ultra high voltage DC (UHVDC) transmission lines are insufficient in protection sensitivity and operation speed. The travelling wavefront fault distance information can b
Externí odkaz:
https://doaj.org/article/534f2e062e194dc5ad210505bdd4e4c9
Publikováno v:
IET Generation, Transmission & Distribution, Vol 17, Iss 21, Pp 4875-4890 (2023)
Abstract In order to improve the ability of the modular multi‐level converter to quickly clear and isolate faults in the multi‐terminal flexible DC grid, this paper analyzes the characteristics of current faults in the multi‐terminal flexible d
Externí odkaz:
https://doaj.org/article/779019044ce44d93b2f4761d45b12944
Publikováno v:
Energy Reports, Vol 9, Iss , Pp 806-818 (2023)
Incorporating the advantages of line commutated converters (LCCs) and voltage-source converters (VSCs), hybrid high voltage DC (HVDC) links have bright prospects in bulk power transmission. For this new technique, however, there is a risk of oscillat
Externí odkaz:
https://doaj.org/article/9f9dfb9567144bb0aa5bbdde7a140bd8
Publikováno v:
Protection and Control of Modern Power Systems, Vol 8, Iss 1, Pp 1-17 (2023)
Abstract A fault identification scheme for protection and adaptive reclosing is proposed for a hybrid multi-terminal HVDC system to increase the reliability of fault isolation and reclosing. By analyzing the "zero passing" characteristic of current a
Externí odkaz:
https://doaj.org/article/d613f4f334794127812d9de329e2f351
Publikováno v:
Sensors, Vol 24, Iss 5, p 1601 (2024)
The coupling of AC and DC power will impact the protective actions on the AC side and pose a threat to the stable operation of the interconnection system. Therefore, a new longitudinal protection method is proposed based on the comprehensive distance
Externí odkaz:
https://doaj.org/article/971fb7cfd40444408e16243621282053