An expert system approach for Power System diagnosis

Vale, Zita; Moura, A. Machado e

doi:10.1007/bfb0025012

Cited by 2 publications

(1 citation statement)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Functions of fault locations and basic methods for determining fault locations in transmission grid are described [11,13]. The overview of specific factors which affect fault locations is often shown [2,10,17].…”

Section: Introductionmentioning

confidence: 99%

Use of Fuzzy Logic Systems for Assessment of Primary Faults

Petrović¹,

Józsa

Baus

2015

Journal of Electrical Engineering

View full text Add to dashboard Cite

In electric power systems, grid elements are often subjected to very complex and demanding disturbances or dangerous operating conditions. Determining initial fault or cause of those states is a difficult task. When fault occurs, often it is an imperative to disconnect affected grid element from the grid. This paper contains an overview of possibilities for using fuzzy logic in an assessment of primary faults in the transmission grid. The tool for this task is SCADA system, which is based on information of currents, voltages, events of protection devices and status of circuit breakers in the grid. The function model described with the membership function and fuzzy logic systems will be presented in the paper. For input data, diagnostics system uses information of protection devices tripping, states of circuit breakers and measurements of currents and voltages before and after faults.K e y w o r d s: fuzzy logic, primary faults, transmission grid Nomenclature |∆I| -absolute value of current change sensitivity I t -current after the event

show abstract