Novel differential protection using model recognition and unsymmetrical vector reconstruction for the transmission line with wind farms connection

Ma, Kaiqi; Chen, Zhe; Bak, Claus Leth; Castillo, Manuel; Torres-Olguin, Raymundo E.; Qin, Nan

doi:10.1016/j.ijepes.2020.106311

Cited by 16 publications

(15 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where 𝐼 𝑜𝑝[0] is the current threshold (for pickup function). 𝑘 𝑟𝑒𝑠 represents the restraining coefficient [102]. A typical selection of 𝑘 𝑟𝑒𝑠 in the system connecting wind parks is 0.8 [72].…”

Section: A Differential Protection Principlementioning

confidence: 99%

“…Figure 2-6 400kV test system model [103] As mentioned in [72,[102][103], the high penetration of FCGs in the transmission network may reduce the sensitivity of 87L when FCGs operate in BCC strategy. Meanwhile, the sensitivity issue mainly occurs during L-L faults.…”

Section: B Protective Challenge Analysismentioning

confidence: 99%

“…where 𝐼 ̇𝑠𝑎 and 𝐼 ̇𝑟𝑎 represent the currents at FCG-based plant and SG sides, respectively. 𝐼 ̇𝑐𝑎𝑝.𝑎𝑎 represents the self-capacitive current in the healthy phase, while 𝐼 ̇𝑐𝑎𝑝.𝑎𝑐 and 𝐼 ̇𝑐𝑎𝑝.𝑎𝑏 represent the mutual capacitive currents in between the faulty and the healthy phase(s) [102].…”

Section: B Protective Challenge Analysismentioning

confidence: 99%

“…Since zero sequence current is absent during L-L fault BC, the currents at the SG side meet 𝐼 ̇𝑟𝑎 + 𝐼 ̇𝑟𝑏 + 𝐼 ̇𝑟𝑐 = 0. When the line capacitive current is ignored, (2.18) can be simplified as [102],…”

Section: B Protective Challenge Analysismentioning

confidence: 99%

“…2) The higher the FCG penetration level is, the higher the above malfunction risk of differential protection is [102].…”

Section: A Current Differential Protectionmentioning

confidence: 99%

See 4 more Smart Citations

Advanced Protection Schemes of Modern Transmission Grids with Large-Scale Power Electronics

View full text Add to dashboard Cite

General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.-Users may download and print one copy of any publication from the public portal for the purpose of private study or research. -You may not further distribute the material or use it for any profit-making activity or commercial gain -You may freely distribute the URL identifying the publication in the public portal - V ENGLISH SUMMARYIn the modern power system, the transition of conventional fossil sources to renewable energies has achieved huge progress, which benefits from power electronic technologies, including the aspects of topology, control, stability, and reliability, etc. It contributes to reducing the stress on the global environment and achieving the goals of sustainable development. Typically, a growing numbers of renewable energy power plants are integrated (or upgraded) in the transmission level to bear massive electric power supply. Under such background, the conventional network protections face increasing adaptability problems, due to the different fault responses of nonsynchronous (power electronic) generators compared with synchronous ones.

show abstract

Section: A Differential Protection Principlementioning

confidence: 99%

Section: B Protective Challenge Analysismentioning

confidence: 99%

Section: B Protective Challenge Analysismentioning

confidence: 99%

Section: B Protective Challenge Analysismentioning

confidence: 99%

“…2) The higher the FCG penetration level is, the higher the above malfunction risk of differential protection is [102].…”

Section: A Current Differential Protectionmentioning

confidence: 99%