Single‐phase grouding fault analysis and control scheme of transformerless flexible multistate switch

Autor: Haihong Yu, Feng Xu, Peng Qiu, Xiaohua Xuan, Daozhuo Jiang, Yi Lu
Rok vydání: 2018
Předmět:
arcs (electric)
intensive loads
Computer science
power distribution control
sequence component decomposition
urban areas
02 engineering and technology
PSCAD-EMTDC
coils
law.invention
Dc voltage
law
removing transformers
0202 electrical engineering
electronic engineering
information engineering
Fault analysis
Single phase
Transformer
nonfault supply area
Ground
phase grouding fault analysis
General Engineering
transformerless FMS
development trend
zero-sequence ride
supply areas
transformerless flexible multistate switch
compact design
single-phase grounding fault simulation
Network analysis
earthing
arc suppression coil grounding
AC-DC voltage fluctuation
020209 energy
Energy Engineering and Power Technology
power distribution protection
circuit analysis
zero-sequence component
fault area
Arc suppression
Electronic engineering
simulation result
flexible AC distribution equipment
simulation model
feeder transformation
020208 electrical & electronic engineering
lcsh:TA1-2040
Electromagnetic coil
power distribution faults
control scheme
lcsh:Engineering (General). Civil engineering (General)
Software
Zdroj: The Journal of Engineering (2019)
ISSN: 2051-3305
DOI: 10.1049/joe.2018.8616
Popis: The compact design is suitable for the urban areas with intensive loads. The flexible multistate switch (FMS) can effectively reduce the footprint by removing transformers, which is the development trend of the flexible AC distribution equipment. In PSCAD/EMTDC, a simulation model containing two supply areas embedded in a transformerless FMS is built. Through the single-phase grounding fault simulation under the arc suppression coil grounding, the characteristics of zero-sequence component of FMS are analysed. By means of circuit analysis and sequence component decomposition, the intrinsic mechanism of AC/DC voltage fluctuation in the non-fault supply area caused by the zero-sequence component at the fault area is analysed, and the simulation result is explained. Based on the feeder transformation, a new protection and control scheme is proposed to overcome the problem of the zero-sequence ride through among different supply areas.
Databáze: OpenAIRE
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