Zobrazeno 1 - 10
of 12 492
pro vyhledávání: '"Small signal"'
Publikováno v:
IET Generation, Transmission & Distribution, Vol 18, Iss 23, Pp 3878-3894 (2024)
Abstract Numerous High‐Voltage Direct Current (HVDC) interconnections in a bipolar configuration are currently in the design phase and set to become operational in the next decade. In the meantime, the shift from Synchronous Generators (SGs) to con
Externí odkaz:
https://doaj.org/article/ff19cf7b4dd64b5ca375ae6f9f8cf4e5
Publikováno v:
Zhejiang dianli, Vol 43, Iss 11, Pp 3-14 (2024)
As the capacity of renewable power plants connected to the grid increases year by year， optimizing the control strategies for their converters becomes crucial for enhancing system stability. Currently， the primary control strategies in renewable
Externí odkaz:
https://doaj.org/article/a0b2267c62874412b535cd98f880158a
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
Publikováno v:
Zhejiang dianli, Vol 43, Iss 8, Pp 36-46 (2024)
High voltage direct current （HVDC） transmission based on modular multilevel converter （MMC） is widely used in large-scale renewable energy delivery. However， the lagged inertia of MMC controllers may undermine the small-signal stability. Fi
Externí odkaz:
https://doaj.org/article/964acb7a2f8c4da8a645d8b989171afb
Publikováno v:
Ain Shams Engineering Journal, Vol 15, Iss 12, Pp 103131- (2024)
This paper proposes an enhanced transient control strategy for Virtual synchronous generators (VSGs) to address the challenges faced by grid-connected inverters, including DC-side voltage fluctuations, overcurrent, active power dynamic oscillations,
Externí odkaz:
https://doaj.org/article/a6c234450f0d45fda0d6db0ca8bb2070
Publikováno v:
Engineering Science and Technology, an International Journal, Vol 59, Iss , Pp 101879- (2024)
The single-machine grid-connected grid-forming virtual synchronous generator (GFVSG) small signal mathematical model is divided into full-order and second-order small signal mathematical models according to whether power calculation, voltage plus cur
Externí odkaz:
https://doaj.org/article/3af85f8c25a0415a95de68306f0c316e
Publikováno v:
International Journal of Electrical Power & Energy Systems, Vol 162, Iss , Pp 110267- (2024)
In high renewable penetrated power systems, both grid-forming (GFL) and grid-following (GFM) inverters play an important role in maintaining the system stability and economic operation. However, the two kinds of inverters exhibit distinct dynamic cha
Externí odkaz:
https://doaj.org/article/8f6db51631384f04a2b3409d9e3ee955
Autor:
Paul Frutos, Juan Manuel Guerrero, Iker Muniategui, Aitor Endemaño, David Ortega, Fernando Briz
Publikováno v:
International Journal of Electrical Power & Energy Systems, Vol 162, Iss , Pp 110284- (2024)
Dynamic interactions among the AC railway power supply network and power electronic converters feeding the trains can result in low-frequency oscillation (LFO) of the catenary voltage, leading to a power outage of the substation and the shutdown of t
Externí odkaz:
https://doaj.org/article/29e8d89f438b4e5eb21fb64dde8eee60
Publikováno v:
International Journal of Electrical Power & Energy Systems, Vol 161, Iss , Pp 110197- (2024)
Small-signal stability analysis is essential for the safe operation and parameter design of power electronic-dominated grids. Unbalanced conditions introduce more frequency-coupling terms, which are unneglectable in the stability assessment. This pap
Externí odkaz:
https://doaj.org/article/cd7c3d3166804f6b95e56e3813c0ea82