Lutsyak V. The diagnostic support of the damaged detection process of the electricity transmission airlines 6-35 kV voltage

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0409U002606

Applicant for

Specialization

  • 05.14.02 - Електричні станції, мережі і системи

15-05-2009

Specialized Academic Board

К 05.052.05

Vinnytsia national technical university

Essay

The object - distributive networks voltage 6-35 kV with airlines of power supply. The subject - methods of fault location in distributive networks with inhomogeneity structure, asymmetric work regimes, distributed along main line electric load. Methods. Were used theoretic and experimental methods, notably, methods of analysis of normal and emergence work mode of power supply systems (PSS) voltage 6-35 kV with backup and restoration for estimation of reached reliability characteristics, safety and usage efficiency of PSS to characteristics that specified in technical demands; theory of remote, topographic methods and structural PSS analysis for algorithm of fault location search program building, methods of dynamic programming for optimization of search process, choice of fault location tools were executed on the basis of system organization theory, classical lapse theory. Theoretical mean of developed results consist in following: study performed in given paper let us to get new solution of actual goal - fault location in power supply air lines voltage 6-35 kV and developed in further progress of fault location in power supply systems with transitive air lines methods when constructive and structural inhomogeneity, information uncertainty are contains and in different work regimes, developing of new location methods that increases automation level and accuracy of fault location. Practical mean of developed results consists in following: on the basis of made theoretical study were developed remote method of phase-to-phase fault in air networks voltage 6-35 kV, which allows to determine fault location with accuracy of 5%; remote method of phase-to-ground fault location, which is more sensitive in comparison of exist, in which fault located through significant transitional resistance; fault section location program on the basis of consecutive network division method, which provide generation of conditional algorithm fault section location with different types of fault and control tools which is optimized by chose criteria; diagnostic system of malfunction or failure location on the basis of electron and microprocessor tools usage. Remote length to phase-to-phase and phase-to-ground fault definition with chosen element base provide lapse not higher to 5% from the total length of airline for modeling lines with total main line length not exciding 20 km. Level of adoption - within branch. Sphere (branch) of usage - research activity and design institutes and also utilities that produce tools for fault location in electro supply air lines voltage 6-35 kV.

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