Impact of Measuring Part Elements of Transformer Differential Protection on Input Signal Processing
The electric power system (EPS) is a large, multi-parameter, non-linear and dynamic system. The problem of calculation of relay protection (RP) settings has become more urgent nowadays. The situation is exacerbated by the active implementation of renewable energy sources, FACTS, etc., which signific...
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| Format: | Article |
| Language: | English |
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Academy of Sciences of Moldova
2017-08-01
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| Series: | Problems of the Regional Energetics |
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| Online Access: | http://journal.ie.asm.md/assets/files/01_02_34_2017.pdf |
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| author | Andreev M.V Borovikov Yu.S Gusev A.S. Ruban N.Yu. Suvorov A.S. Sulaymanov A.O. Ufa R.A. |
| author_facet | Andreev M.V Borovikov Yu.S Gusev A.S. Ruban N.Yu. Suvorov A.S. Sulaymanov A.O. Ufa R.A. |
| author_sort | Andreev M.V |
| collection | DOAJ |
| description | The electric power system (EPS) is a large, multi-parameter, non-linear and dynamic system. The problem of calculation of relay protection (RP) settings has become more urgent nowadays. The situation is exacerbated by the active implementation of renewable energy sources, FACTS, etc., which significantly change the “traditional” EPS and their operating modes. The problem can be solved by deep analysis of functioning of main elements of RP devices in the specific operating conditions and revision of coefficients used in settings calculation. That can be done using RPs detailed mathematical models and modern EPS simulators. The results of the analysis will make it possible to formulate a new methodology for setting up RP. That is a final goal. In the framework of solving this problem, the novel approach for developing RPs’ detailed mathematical models is formulated and theoretically proved. On the basis of this approach, mathematical models of the system “instrumental transformer - auxiliary transformer - analog filter” (measuring part of digital transformer differential protection) for different types of auxiliary current transformers (active and passive) and filters (Butterworth, Chebyshev, Bessel) are developed. A comparative numerical analysis of their frequency and phase responses is carried out, including taking into account the magnetization of instrumental current transformers. Summarizing, the theoretical and practical studies presented in the article allows formulating requirements for RPs’ detailed mathematical models, which will be used in the further research. |
| format | Article |
| id | doaj-art-6d93ef3af08a42e58f96fdde2257393a |
| institution | Kabale University |
| issn | 1857-0070 |
| language | English |
| publishDate | 2017-08-01 |
| publisher | Academy of Sciences of Moldova |
| record_format | Article |
| series | Problems of the Regional Energetics |
| spelling | doaj-art-6d93ef3af08a42e58f96fdde2257393a2025-08-20T03:56:23ZengAcademy of Sciences of MoldovaProblems of the Regional Energetics1857-00702017-08-01342112Impact of Measuring Part Elements of Transformer Differential Protection on Input Signal ProcessingAndreev M.V0Borovikov Yu.S1Gusev A.S.2Ruban N.Yu.3Suvorov A.S.4Sulaymanov A.O.5Ufa R.A.6National Research Tomsk Polytechnic University Tomsk, Russian FederationNational Research Tomsk Polytechnic University Tomsk, Russian FederationNational Research Tomsk Polytechnic University Tomsk, Russian FederationNational Research Tomsk Polytechnic University Tomsk, Russian FederationNational Research Tomsk Polytechnic University Tomsk, Russian FederationNational Research Tomsk Polytechnic University Tomsk, Russian FederationNational Research Tomsk Polytechnic University Tomsk, Russian FederationThe electric power system (EPS) is a large, multi-parameter, non-linear and dynamic system. The problem of calculation of relay protection (RP) settings has become more urgent nowadays. The situation is exacerbated by the active implementation of renewable energy sources, FACTS, etc., which significantly change the “traditional” EPS and their operating modes. The problem can be solved by deep analysis of functioning of main elements of RP devices in the specific operating conditions and revision of coefficients used in settings calculation. That can be done using RPs detailed mathematical models and modern EPS simulators. The results of the analysis will make it possible to formulate a new methodology for setting up RP. That is a final goal. In the framework of solving this problem, the novel approach for developing RPs’ detailed mathematical models is formulated and theoretically proved. On the basis of this approach, mathematical models of the system “instrumental transformer - auxiliary transformer - analog filter” (measuring part of digital transformer differential protection) for different types of auxiliary current transformers (active and passive) and filters (Butterworth, Chebyshev, Bessel) are developed. A comparative numerical analysis of their frequency and phase responses is carried out, including taking into account the magnetization of instrumental current transformers. Summarizing, the theoretical and practical studies presented in the article allows formulating requirements for RPs’ detailed mathematical models, which will be used in the further research.http://journal.ie.asm.md/assets/files/01_02_34_2017.pdfsimulationasimulationflow graph |
| spellingShingle | Andreev M.V Borovikov Yu.S Gusev A.S. Ruban N.Yu. Suvorov A.S. Sulaymanov A.O. Ufa R.A. Impact of Measuring Part Elements of Transformer Differential Protection on Input Signal Processing Problems of the Regional Energetics simulationa simulation flow graph |
| title | Impact of Measuring Part Elements of Transformer Differential Protection on Input Signal Processing |
| title_full | Impact of Measuring Part Elements of Transformer Differential Protection on Input Signal Processing |
| title_fullStr | Impact of Measuring Part Elements of Transformer Differential Protection on Input Signal Processing |
| title_full_unstemmed | Impact of Measuring Part Elements of Transformer Differential Protection on Input Signal Processing |
| title_short | Impact of Measuring Part Elements of Transformer Differential Protection on Input Signal Processing |
| title_sort | impact of measuring part elements of transformer differential protection on input signal processing |
| topic | simulationa simulation flow graph |
| url | http://journal.ie.asm.md/assets/files/01_02_34_2017.pdf |
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