Log in

Relevant bibliographies by topics / Distance relay / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Distance relay.

Dissertations / Theses on the topic 'Distance relay'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Distance relay.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Li, Hongwei. "A new adaptive distance relay." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0025/NQ51646.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Abyaneh, Hossein Askarian. "Assessment of IDMT and distance relay settings." Thesis, University of Manchester, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.332331.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Erezzaghi, M. "The effects of FACTS devices on distance relay." Thesis, Queen's University Belfast, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.426704.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Smith, David Matthew. "Next-generation, phasor-based distance relay with fault-path resistance immunity." Thesis, This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-11012008-063727/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Wang, Hualei. "The protection of transmission networks containing AC and DC circuits." Thesis, University of Bath, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.655718.

Full text

Abstract:

In 14th August 2003, the Northeast USA suffered its worst power outage event in history. The power disturbance spreading through the system caused mal-trips of the distance relay remote back-up protections, which indeed contributed to the power outage cascading a wide area. The power outage in the Northeast USA was constrained by the presence of HVDC interconnections between the HVAC networks in Ontario and New York. The system collapse did not progress beyond the HVDC interconnection interface with Quebec. The HVDC link can regulate the voltage and current therefore impacts on the performance

APA, Harvard, Vancouver, ISO, and other styles

6

Harris, Raymond Trevor. "Replacement of seven 132/66 kv distance protection schemes by means of a generic relay implemented as a strategic spare." Thesis, Port Elizabeth Technikon, 2000. http://hdl.handle.net/10948/34.

Full text

Abstract:

Eskom is experiencing problems in the field of protection maintenance and in-service breakdowns which negatively influence the quality of electrical supply to the consumer, an integral component of the utility business. These facts initiated the research into the further development of a generic relay to be implemented as a strategic spare for the replacement of several schemes operating within Eskom’s southern region. These include the electromechanical, solid state and numerical distance protection relay and scheme failures on the 132 / 66 kV feeder network. Hence, the primary objective of t

APA, Harvard, Vancouver, ISO, and other styles

7

Bartko, Jan. "Projekt komunikace distančních ochran 7SA 610 pro chránění přenosového vedení." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219032.

Full text

Abstract:

This work describes the structure and function of the distance protection relay Siemens 7SA610 SIPROTEC and presents the basic theoretical knowledge of the communication standard IEC 61850 at the beginning. It focuses on the configuration of the topology of two 7SA610 distance protection relays, PC and secondary relay test set Omicron CMC256 +. These two distance protection relays were programmed by using software implement DIGSI to transmit and receive GOOSE messages. It served to testing this created network by simple function. Computer and tester simulated the control system and commanded a

APA, Harvard, Vancouver, ISO, and other styles

8

Іванов, Олександр Олександрович, Александр Александрович Иванов, Oleksandr Oleksandrovych Ivanov, О. І. Ігнатова та С. О. Іванов. "Моделювання дистанційного захисту лінії електропередач в програмному комплексі PSCAD/EMTDC". Thesis, Сумський державний університет, 2015. http://essuir.sumdu.edu.ua/handle/123456789/41389.

Full text

Abstract:

Стійка робота електричних станцій у великій мірі забезпечується за рахунок надійної роботи релейного захисту їх електрообладнання. В даний час, що характеризуються збільшенням числа аварійних ситуацій, а також зростанням кількості випадків виникнення супутніх ушкоджень, роль релейного захисту постійно зростає. У багатьох випадках через відносну недосконалість релейного захисту не можна запобігти розвитку аварій, які все частіше протікають по найбільш важкому шляху і супроводжуються значними економічними втратами.

APA, Harvard, Vancouver, ISO, and other styles

9

Shah, Syed Arif Ullah. "The impacts of series compensated EHV lines on distance protection, and a proposed new mitigation solution." Thesis, KTH, Elektroteknisk teori och konstruktion, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-209916.

Full text

Abstract:

Series compensation is extensively applied to the transmission lines to increase the power transfer capability of transmission lines, reduce transmission losses, improve voltage profiles, and improve power oscillation damping and transient stability of power systems. But it modifies the apparent impedance of the transmission lines during fault conditions and might cause the distance protection of transmission lines to encounter directional discrimination issues and reach problems. The non-linear characteristic of metal oxide varistor in series compensation model creates further complexity to t

APA, Harvard, Vancouver, ISO, and other styles

10

Valins, Thiago Ferreira. "Relé digital de distância baseado na teoria de ondas viajantes e transformada Wavelet." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/18/18133/tde-13032005-113736/.

Full text

Abstract:

Neste trabalho, será abordada a proteção digital fundamentada na teoria de ondas viajantes e da ferramenta Transformada Wavelet. Um algoritmo completo para proteção digital foi implementado, consistindo basicamente nos módulos de detecção, classificação e localização da falta, com a conseqüente determinação das zonas de proteção do relé. Para este esquema completo de releamento, empregou-se como ferramenta de análise a Transformada Wavelet. Sinais transitórios de alta freqüência gerados por uma situação de falta podem ser analisados pela Transformada Wavelet, detectando-se com precisão o insta

APA, Harvard, Vancouver, ISO, and other styles

11

Souza, Silvio Aparecido de. "Algoritmos genéticos aplicados à proteção e estimação de harmônicos em sistemas elétricos de potência." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/18/18154/tde-17032009-150821/.

Full text

Abstract:

O objetivo de um sistema elétrico de potência é gerar energia elétrica e fornecer continuamente esta energia aos usuários finais dentro de padrões de qualidade aceitáveis. Neste contexto, diferentes aplicações usando algoritmos genéticos (AGs) para resolver problemas relacionados a sistemas elétricos de potência são apresentadas neste trabalho. A estimação de harmônicos, estudos relativos aos relés de freqüência e aplicações da proteção de distância são os assuntos investigados nesta tese. Para análise harmônica foram consideradas freqüências em sistemas de potência de até a vigésima quinta or

APA, Harvard, Vancouver, ISO, and other styles

12

CAMPOS, Alana Kelly Xavier Santos. "Um novo método de estimação fasorial para uso em relés digitais de proteção." Universidade Federal de Campina Grande, 2016. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/582.

Full text

Abstract:

Submitted by Emanuel Varela Cardoso (emanuel.varela@ufcg.edu.br) on 2018-05-04T19:00:50Z No. of bitstreams: 1 ALANA KELLY XAVIER SANTOS CAMPOS – TESE (PPGEE) 2016.pdf: 5517354 bytes, checksum: 24306600f8b9a28a2d230c48b0811a3a (MD5)<br>Made available in DSpace on 2018-05-04T19:00:50Z (GMT). No. of bitstreams: 1 ALANA KELLY XAVIER SANTOS CAMPOS – TESE (PPGEE) 2016.pdf: 5517354 bytes, checksum: 24306600f8b9a28a2d230c48b0811a3a (MD5) Previous issue date: 2016-10-21<br>Capes<br>Um método de estimação fasorial é proposto para ser utilizado em relés digitais de proteção. Este método tem o

APA, Harvard, Vancouver, ISO, and other styles

13

Moro, Vinícius de Cillo. "Metodologia para coordenação otimizada entre relés de distância e direcionais de sobrecorrente em sistemas de transmissão de energia elétrica." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/18/18154/tde-30102014-093627/.

Full text

Abstract:

A proteção de sistemas de energia elétrica possui papel extremamente importante no aspecto de garantir o fornecimento de energia de maneira segura e confiável. Assim, a ação indevida ou a não atuação deste sistema de proteção pode causar danos materiais ou econômicos tanto para as concessionárias quanto para os consumidores de energia elétrica. Dessa forma, o sistema de proteção deve estar bem ajustado para que possa garantir suas funções, sendo sensível, seletivo, confiável e rápido. Para tanto, uma boa coordenação entre os relés de proteção deve ser estabelecida. No caso de um sistema de tra

APA, Harvard, Vancouver, ISO, and other styles

14

Regnier, Wilfried Loïc. "Les écarts interprétatifs sur l'éthique du travail prescrit de surveillance et la compétence de l'assistant d'éducation pour l'esprit du système scolaire." Phd thesis, Université de Haute Alsace - Mulhouse, 2012. http://tel.archives-ouvertes.fr/tel-01058527.

Full text

Abstract:

Être surveillant en 2013, à quel savoir-faire cela correspond-il ? Depuis 2003, nous ne parlons plus de surveillant d'externat, mais d'assistant d'éducation. Comment apprennent-ils leur travail ? Le travail de surveillance ne s'impose plus comme un rite de passage pour devenir enseignant. Les enseignants ont une vocation éducative, mais qu'en est-il des surveillants ? Est-ce que ces derniers interprètent leurs fonctions avec une vocation éducative ? L'assistant d'éducation est un agent employé par l'État pour assurer un service de surveillance au sein d'un établissement scolaire, mais comment

APA, Harvard, Vancouver, ISO, and other styles

15

Liang, Feng. "Performance enhancement of digital relays for transmission line distance protection /." Internet access available to MUN users only, 2003. http://collections.mun.ca/u?/theses,153681.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Fabián, Espinoza Renzo Grover [UNESP]. "Análise de proteção de linhas de transmissão através de relés numéricos e uso de models externos no ATP (Alternative Transient Program)." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/87138.

Full text

Abstract:

Made available in DSpace on 2014-06-11T19:22:33Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-02-18Bitstream added on 2014-06-13T19:08:07Z : No. of bitstreams: 1 fabianespinoza_rg_me_ilha.pdf: 869619 bytes, checksum: 3c82572569bc2349669cb3765fb65c95 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Fundação de Ensino Pesquisa e Extensão de Ilha Solteira (FEPISA)<br>Neste trabalho apresenta-se uma metodologia para obter um ambiente interativo de simulação com ferramentas que permitam fazer análises de sistemas de proteção como estudos de coordenação e an

APA, Harvard, Vancouver, ISO, and other styles

17

Fabián, Espinoza Renzo Grover. "Análise de proteção de linhas de transmissão através de relés numéricos e uso de models externos no ATP (Alternative Transient Program) /." Ilha Solteira : [s.n.], 2011. http://hdl.handle.net/11449/87138.

Full text

Abstract:

Orientador: Jose Roberto Sanches Mantovani<br>Banca: Luiz Fernando Bovolato<br>Banca: Rodrigo Aparecido Fernandes Pereira<br>Resumo: Neste trabalho apresenta-se uma metodologia para obter um ambiente interativo de simulação com ferramentas que permitam fazer análises de sistemas de proteção como estudos de coordenação e analises pós falta. As ferramentas estão baseadas no programa de simulação de transitórios eletro- magnéticos EMTP/ATP e na linguagem de programação ANSI C, sobre a plataforma de software livre GNU/Linux. Esta metodologia pode ser implementada, da mesma forma, em qualquer plata

APA, Harvard, Vancouver, ISO, and other styles

18

Rivas, Angel Esteban Labrador. "Coordination of distance and overcurrent relays using a mathematical optimization technique." Universidade Estadual de Londrina. Centro de Tecnologia e Urbanismo. Programa de Pós-Graduação em Engenharia Elétrica, 2018. http://www.bibliotecadigital.uel.br/document/?code=vtls000218372.

Full text

Abstract:

A proteção da rede de transmissão tem um papel importante nos sistemas de energia. Para melhorar a proteção é comum combinar diferentes tipos de relés; a combinação de relés de sobrecorrente e distância é um esquema bem conhecido. A lenta velocidade operacional do relé de sobrecorrente força a aplicação do relé de distância como o dispositivo de proteção principal. Os relés de sobrecorrente são usados como proteção de retaguarda tendo o esquema de distância como principal. Para atingir esse objetivo, a coordenação entre os sistemas de proteção primária e de retaguarda deve ser realizada

APA, Harvard, Vancouver, ISO, and other styles

19

Wannous, Kinan Hasan Wafaa. "Distanční ochrana využívající digitální vstupní data." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-414159.

Full text

Abstract:

Standard IEC 61850-9-2 definuje přenos vzorkovaných měřených hodnot (sampled measured values, SMV) prostřednictvím sítě Ethernet a využití SMV získaných ze slučovacích jednotek nebo přístrojových transformátorů. Implementace IEC 61850-9-2 závisí na vlastnostech datového souboru, jakými jsou časová synchronizace, počet vzorků a časový interval. Dizertační práce je zaměřena na algoritmy chránění a analýzu vlivu standardu IEC61850-9-2LE na fyzická zařízení ochran s analogově/digitálními vstupními daty o proudu a napětí. S ohledem na narůstající míru interakce mezi fyzickými zařízeními a komunikač

APA, Harvard, Vancouver, ISO, and other styles

20

Morais, Adriano Peres de. "Algoritmo de alto desempenho para proteção numérica de linhas de transmissão imune a oscilações de potência." Universidade Federal de Santa Maria, 2012. http://repositorio.ufsm.br/handle/1/3672.

Full text

Abstract:

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>This Doctoral Thesis proposes a new methodology for transmission line protection tolerant to power swings. The algorithm developed has the ability to detect, classify and locate all fault types with and without power swings, including those that produce high values of fault resistance. In a first step, it is proposed a fault distance estimator based on the leastsquare curve fitting. The fault locator, for protection proposes, was modeled by a series R-L circuit and differential equations. In a second step, the main causes and conse

APA, Harvard, Vancouver, ISO, and other styles

21

Benfarah, Ahmed. "Sécurisation d'un lien radio UWB-IR." Phd thesis, INSA de Lyon, 2013. http://tel.archives-ouvertes.fr/tel-00961228.

Full text

Abstract:

Du fait de la nature ouverte et partagée du canal radio, les communications sans fil souffrent de vulnérabilités sérieuses en terme de sécurité. Dans ces travaux de thèse, je me suis intéressé particulièrement à deux classes d'attaques à savoir l'attaque par relais et l'attaque par déni de service (brouillage). La technologie de couche physique UWB-IR a connu un grand essor au cours de cette dernière décennie et elle est une candidate intéressante pour les réseaux sans fil à courte portée. Mon objectif principal était d'exploiter les caractéristiques de la couche physique UWB-IR afin de renfor

APA, Harvard, Vancouver, ISO, and other styles

22

Logan, Kit. "Observational studies of the learning behaviour of distance education students using an asynchronous, remote, recording and replay tool." Thesis, Open University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.418514.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Alanzi, Sultan. "Analysis of a Major Electric Grid – Stability and Adaptive Protection." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1365969976.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Leopoldino, Kleison Jos? Medeiros. "As rela??es afetivas na pr?tica tutorial e sua rela??es com a aprendizagem no curso a dist?ncia de licenciatura plena em Qu?mica." Universidade Federal do Rio Grande do Norte, 2012. http://repositorio.ufrn.br:8080/jspui/handle/123456789/17665.

Full text

Abstract:

Made available in DSpace on 2014-12-17T15:41:58Z (GMT). No. of bitstreams: 1 KleisonJML_DISSERT.pdf: 2363827 bytes, checksum: 4aa59ad298de0da3cbcb7da4fac8623c (MD5) Previous issue date: 2012-02-16<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>In distance learning degree in Chemistry in full of the Secret?ria de Educa??o a dist?ncia da Universidade Federal do Rio Grande do Norte (SEDIS / UFRN). The teacher-tutor to establish the experimental subjects closer relationships with students, mediating the pedagogical actions that develop in the distance learning course, with a v

APA, Harvard, Vancouver, ISO, and other styles

25

Leoppoldino, Kleison Jos? Medeiros. "As rela??es afetivas na pr?tica tutorial e sua rela??o com a aprendizagem no curso a dist?ncia de licenciatura plena em qu?mica." Universidade Federal do Rio Grande do Norte, 2012. http://repositorio.ufrn.br:8080/jspui/handle/123456789/17670.

Full text

Abstract:

Made available in DSpace on 2014-12-17T15:41:59Z (GMT). No. of bitstreams: 1 KleisonJML_DISSERT.pdf: 2363827 bytes, checksum: 4aa59ad298de0da3cbcb7da4fac8623c (MD5) Previous issue date: 2012-02-16<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>In distance learning degree in Chemistry in full of the Secret?ria de Educa??o a dist?ncia da Universidade Federal do Rio Grande do Norte (SEDIS / UFRN). The teacher-tutor to establish the experimental subjects closer relationships with students, mediating the pedagogical actions that develop in the distance learning course, with a v

APA, Harvard, Vancouver, ISO, and other styles

26

Garlapati, Shravan Kumar Reddy. "Enabling Communication and Networking Technologies for Smart Grid." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/56629.

Full text

Abstract:

Transforming the aging electric grid to a smart grid is an active area of research in industry and the government. One of the main objectives of the smart grid is to improve the efficiency of power generation, transmission and distribution and also to improve the stability and the reliability of the grid. In order to achieve this, various processes involved in power generation, transmission, and distribution should be armed with advanced sensor technologies, computing, communication and networking capabilities to an unprecedented level. These high speed data transfer and computational abilitie

APA, Harvard, Vancouver, ISO, and other styles

27

Jorge, David Calhau. "Redes neurais artificiais aplicadas a proteção de sistemas elétricos de potência." Universidade de São Paulo, 1997. http://www.teses.usp.br/teses/disponiveis/18/18133/tde-19012018-161622/.

Full text

Abstract:

Um relé de distância utilizado na proteção de Linhas de Transmissão é usualmente projetado para atuar sob condições fixas de operação. Portanto, o desempenho destes relés é afetado pela mudança no ponto de operação do sistema. Grandes avanços, relativos à proteção, podem ser alcançados com a implementação de reconhecimento de padrões para o diagnóstico de faltas em sistemas elétricos de potência. Este trabalho demonstra a utilização de Redes Neurais Artificiais operando como um classificador de padrões para a operação de um relé de distância. O projeto utiliza a magnitude dos fasores das três

APA, Harvard, Vancouver, ISO, and other styles

28

Husen, Khalid, and Mousa Fadi Imad. "Implementation Av Reläskyddssamverkan : En studie om en effektiv reläskyddssamverkan med hjälp av längsdifferentialskyddets kommunikationskanaler." Thesis, KTH, Hälsoinformatik och logistik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-296485.

Full text

Abstract:

En tranmissionsledning är delen av elsystemet som överför ström från kraftverk till slutanvändare. Därför är det av vikt att en transmissionslinje alltid ska vara skyddad. Syftet med detta examensarbete var att utveckla och prova en konfiguration av teleskyddsschema med kommunikation mellan två reläskydd med distans- och jordfelsskydd över längsdifferentialskyddets kommunikationskanaler. Detta för att skydda elnätet och koordinera utlösningstiden. Konfigurationen av reläskydden har utvecklats med mjukvaran ABB PCM600, och funktionerna som valdes är adekvata funktioner för distansskydd, jordfe

APA, Harvard, Vancouver, ISO, and other styles

29

Shih-chieh, Liao, and 廖世傑. "Design of a computer based distance relay." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/11268929604649396437.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Chen-YuLu and 呂宸有. "A Study on Distance Relay Protection Setting for theLong-Distance Submarine Cable." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/4k66s3.

Full text

Abstract:

碩士<br>國立成功大學<br>電機工程學系<br>103<br>The thesis aims to study the distance relay protection setting for the long-distance submarine cable. A case study based on the double-curcuit submarine cable linking Taiwan grid and Penghu renewable energy system is demonstrated. The power system simulation package PSS/E is utilized for system modeling and simulation analysis. The protection zones for the distance relay installed on the submarine cable is defined, also, the relay operating characteristic and associated system responses as a three phase ground fault occusr on the submarine cable in different pr

APA, Harvard, Vancouver, ISO, and other styles

31

Lin, Jia-Renn, and 林家任. "The Effect of Load Models on the Setting of Distance Relay and Overcurrent Relay." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/06755666821207393956.

Full text

Abstract:

碩士<br>國立臺北科技大學<br>電機工程系碩士班<br>89<br>The purpose of this thesis is to study the effect of load models on the setting of distance relay and overcurrent relay in the transmission system of Taipower. Five suitable load models for the Taipower system are adopted here in order to discuss the effect of the load characteristics on the setting of the relay during the incident, as a basis for setting the standard for the protective relay: (1) Static ZIP model; (2) Dynamic Motor model; (3) Composite model; (4) PTI IEEE model; (5) Exponential model. In distance protection, the main concerns are

APA, Harvard, Vancouver, ISO, and other styles

32

KUMAR, RAKESH. "ZONE PROTECTION SYSTEM OF TRANSMISSION LINE BY DISTANCE RELAY." Thesis, 2019. http://dspace.dtu.ac.in:8080/jspui/handle/repository/16977.

Full text

Abstract:

In this thesis design and modeling of Distance Relay has been done using MATLAB-SIMULINK. When microprocessor technology was implemented in the relay designing technique it gave birth to a new type of protection methodology known as Numerical relay. Numerical relays can interact with the peripheral devices and other numerical relays also, resulting in overall economy of the protection system equipments. A power system network and the distance relay model has been developed and the response of the distance relay has been verified by plotting the data generated by the relay on R-X

APA, Harvard, Vancouver, ISO, and other styles

33

(12214559), Sonal Chawda. "Determination of distance relay characteristics using an inductive learning system." Thesis, 1993. https://figshare.com/articles/thesis/Determination_of_distance_relay_characteristics_using_an_inductive_learning_system/19326599.

Full text

Abstract:

<div>In this research an attempt has been made to design distance relays as per protection system requirements. This is achieved by using an Inductive learning technique. The inductive learning algorithm which belongs to the family of machine learning by examples is used to convert a set of impedance values into a decision tree. The impedance values are obtained by conducting fault study on the system to be protected. A number of tests have been carried out on various transmission line configurations. The required software for generating the</div><div>decision tree has been developed.</div>

APA, Harvard, Vancouver, ISO, and other styles

34

SINGH, AJIT KUMAR. "MODELING AND SIMULATION OF DISTANCE RELAY FOR POWER SYSTEM PROTECTION." Thesis, 2016. http://dspace.dtu.ac.in:8080/jspui/handle/repository/15303.

Full text

Abstract:

In the present thesis work design and modeling of Distance Relay has been done using MATLAB-SIMULINK. When microprocessor technology was implemented in the relay designing technique it gave birth to a new type of protection methodology known as Numerical relay. Numerical relays can interact with the peripheral devices and other numerical relays also, resulting in overall economy of the protection system equipments. A power system network and the distance relay model has been developed and the response of the distance relay has been verified by plotting the data generated by the relay on

APA, Harvard, Vancouver, ISO, and other styles

35

Lin, Tzu-Chiao, and 林子喬. "The Design and Analysis of Digital Distance Relay Based on FPGA." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/17649057744776649411.

Full text

Abstract:

碩士<br>國立高雄應用科技大學<br>電機工程系碩士班<br>92<br>This thesis proposes an approximated method to simulate and design the functions of distance relay (impendence relay) to efficiently detect the three-phase balanced fault on the transmission line, as well as to analyze the reach of digital distance relay in three types of power system models. Based on the proposed methodology, the FPGA technique is applied to design and implement the digital distance relay. Finally, a sensitivity analysis is applied to discuss the effect of grounding impedance, voltage source ratio to the value of relay terminal impedance

APA, Harvard, Vancouver, ISO, and other styles

36

Srivastava, Sachin. "Behavior of Distance Relay Characteristics on Interconnecting Lines Fed From Wind Farms." Thesis, 2015. https://etd.iisc.ac.in/handle/2005/3539.

Full text

Abstract:

Distance relays due to their selectivity and operating speed are used in HV/EHV line protection. The dynamic nature of Mho characteristic, which happens to be most primitive technique in line protection implemented with distance relaying, is built by using the measurement of local voltage and current signals. These signals have been influenced substantially by fault resistance and the source impedance feeding the line. In case of different generation sources, the source impedance and fault characteristic also change accordingly. Environmental benefit of wind turbine technology is making it a

APA, Harvard, Vancouver, ISO, and other styles

37

Srivastava, Sachin. "Behavior of Distance Relay Characteristics on Interconnecting Lines Fed From Wind Farms." Thesis, 2015. http://etd.iisc.ernet.in/2005/3539.

Full text

Abstract:

Distance relays due to their selectivity and operating speed are used in HV/EHV line protection. The dynamic nature of Mho characteristic, which happens to be most primitive technique in line protection implemented with distance relaying, is built by using the measurement of local voltage and current signals. These signals have been influenced substantially by fault resistance and the source impedance feeding the line. In case of different generation sources, the source impedance and fault characteristic also change accordingly. Environmental benefit of wind turbine technology is making it a

APA, Harvard, Vancouver, ISO, and other styles

38

Bheemraj, T. S. "Prediction and Prevention of Load Encroachment for Reliable Operation of Distance Relay." Thesis, 2017. http://ethesis.nitrkl.ac.in/8939/1/2017_MT_TSBheemraj.pdf.

Full text

Abstract:

Electric power systems are complex and commonly run near their operational limits. In power systems, total or partial blackouts are unavoidable. A distance relay can provide remote backup protection by zones 2 and 3, but may mal-operate under heavy loading conditions and cause cascading trips in the network, which could further lead to a widespread blackout. Usually, load blinders or load encroachment elements block the distance relay when there is a heavy load in the system. The improved protection technique for zone 3 prevents mal-operation and, thus, power systems become more reliable. The

APA, Harvard, Vancouver, ISO, and other styles

39

Lee, Chen-Hui, and 李振輝. "Researches on Maximum Transmission Distance and Relay Grouping Algorithm over Cooperative Communication Systems." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/84074391017793009707.

Full text

Abstract:

碩士<br>國立暨南國際大學<br>電機工程學系<br>102<br>With a higher system performance, the cooperative communication has been wildly discussed among the recent researches. Concerning within the relay location and the power allocation in the cooperative communications, the major purpose of this work is to evaluate the system performance under the related limitation. According to the theoretical derivation and simulation results, one can find that the diversity gain in the communication could be obtained with the relay station in decode and forward mode. While the path loss from the source station to destination

APA, Harvard, Vancouver, ISO, and other styles

40

Lin, Yu-liang, and 林裕梁. "Computer-Aided Calculation and Setting for Zone-2 Distance Relay Protection of Transmission Line." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/vzuz4e.

Full text

Abstract:

碩士<br>國立臺灣科技大學<br>電機工程系<br>95<br>In Taiwan, the main protection scheme of transmission lines include current differential relay, distance relay and pilot wire relay. The backup protection scheme of transmission lines include three zone distance relay and directional overcurrent relay. Among them, the settings of the backup protective relays need to be coordinated. According to the principle of the distance relay settings at present, this paper plans to use the relay settings coordination theory, the network admittance matrix abbreviation and the fault current distribution calculation trying to

APA, Harvard, Vancouver, ISO, and other styles

41

Yang, Chih-Chiao, and 楊智喬. "Relay Selection Schemes Based on Channel Gain and Distance Information for Cooperative Wireless Networks." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/56625675987416100801.

Full text

Abstract:

碩士<br>國立清華大學<br>通訊工程研究所<br>97<br>In wireless networks, cooperative relaying is an emerging technique that provides spatial diversity in an alternative way. With the help of relays, the source has more opportunities to transmit its data to the destination; in other words, the increased degrees of freedom due to relays can be utilized to combat channel impairments effectively. Therefore, how to choose the optimal relay among a set of available relays for meeting some requirements naturally becomes a critical issue. Recently, various relay selection schemes being proposed aim at choosing one and

APA, Harvard, Vancouver, ISO, and other styles

42

Dubey, Rahul Kumar. "Adaptive distance relay setting for transmission lines in presence Of UPFC and wind farms." Thesis, 2012. http://ethesis.nitrkl.ac.in/4073/1/My-M.Tech-Thesis2.pdf.

Full text

Abstract:

This thesis presents an adaptive distance relay setting for transmission lines with Unified Power Flow Controller (UPFC) and wind farms together. The ideal trip characteristics of distance relay is greatly affected in presence of UPFC in transmission lines as the apparent impedance is significantly affected. Similarly, the reach setting of the relay for the lines connecting wind farms is significantly affected as the relay end voltage fluctuates continuously. Thus, the proposed study focus on developing adaptive relay setting for transmission lines including both UPFC and wind farms considerin

APA, Harvard, Vancouver, ISO, and other styles

43

Lin, Heng-An, and 林恆安. "Protection Zone Planning of Distance Relay for the Long Submarine Cables of Large Offshore Wind Farm." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/mwv45j.

Full text

Abstract:

碩士<br>國立臺北科技大學<br>電機工程系所<br>102<br>This thesis is to study the protection zone planning of distance relays for long submarine cables of large offshore wind farm. A case study based on Tai-Peng submarine cables of Peng-Hu offshore wind farm with type-C double-fed induction wind generators is presented. A software package namely PSS/E is used for the modeling and simulation. Three protection zones are defined for submarine cable distance relays and the three phase short circuit (3ΦSC) fault characteristics of different protection zones are simulated under different wind farm operation situations

APA, Harvard, Vancouver, ISO, and other styles

44

Maturu, Suresh. "Performance Evaluation Of Distance Relays For FACTS Compensated Transmission Lines." Thesis, 2011. https://etd.iisc.ac.in/handle/2005/2084.

Full text

Abstract:

With limited enhancement or expansion of the transmission infrastructure, the contemporary power systems are operating under more stressed conditions. It becomes important to fully utilize the existing transmission system to supply load demand as much as possible, thus eliminating or reducing the need for new transmission investment. Flexible AC Transmission System (FACTS) technology provides an alternative to fully utilize the existing transmission lines as well as new and upgraded lines, by controlling power and also enhancing the power transfer capability of transmission lines. However,

APA, Harvard, Vancouver, ISO, and other styles

45

Maturu, Suresh. "Performance Evaluation Of Distance Relays For FACTS Compensated Transmission Lines." Thesis, 2011. http://etd.iisc.ernet.in/handle/2005/2084.

Full text

Abstract:

With limited enhancement or expansion of the transmission infrastructure, the contemporary power systems are operating under more stressed conditions. It becomes important to fully utilize the existing transmission system to supply load demand as much as possible, thus eliminating or reducing the need for new transmission investment. Flexible AC Transmission System (FACTS) technology provides an alternative to fully utilize the existing transmission lines as well as new and upgraded lines, by controlling power and also enhancing the power transfer capability of transmission lines. However,

APA, Harvard, Vancouver, ISO, and other styles

46

Lin, Chao-Ting, and 林昭廷. "Research on Adaptive Setting and Simulation of Distance Protection Relay in a Long Transmission System Connected to an Offshore Wind Farm." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/81592839289930777037.

Full text

Abstract:

碩士<br>國立中正大學<br>電機工程研究所<br>103<br>Offshore wind power has become the focus of the world’s renewable energy development. In Taiwan, several demonstration offshore wind turbines will be scheduled to be established by 2015, and more than 300MW capacity of offshore wind farm to be installed by 2020. As the penetration level of wind energy increases, more reliable protection systems for offshore wind farms are required. The wind farm protection system is usually divided into different protection zones including the wind farm area, wind farm collection system, wind farm interconnection system and th

APA, Harvard, Vancouver, ISO, and other styles

47

Liao, Jyun-Da, and 廖俊達. "Implementation and Testing of Digital Distance Relays." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/52179789648923841566.

Full text

Abstract:

碩士<br>國立臺灣大學<br>電機工程學研究所<br>93<br>This paper capitalizes the commercialized production of DSP (digital signal process)chip， and make use of digital distance algorithm to realize digital distance relays. When a fault occurs on line during operation， the signals of voltage and current would be severely distorted. These signals may contain decaying dc components. It could seriously influence the judgment and accuracy of relays. For the purpose of achieving the goal of fast response， relays have to quickly obtain the fundamental signals of voltage and current from the input signal containing noise

APA, Harvard, Vancouver, ISO, and other styles

48

Bhimasingu, Ravikumar. "Intelligent Systems Applications For Improving Power Systems Security." Thesis, 2009. https://etd.iisc.ac.in/handle/2005/1031.

Full text

Abstract:

Electric power systems are among the most complex man made systems on the world. Most of the time, they operate under quasi-steady state. With the ever increasing load demand and the advent of the deregulated power market recently, the power systems are pushed more often to operate close to their design limits and with more uncertainty of the system operating mode. With the increasing complexity and more interconnected systems, power systems are operating closer to their performance limits. As a result, maintaining system security and facilitating efficient system operation have been challengi

APA, Harvard, Vancouver, ISO, and other styles

49

Bhimasingu, Ravikumar. "Intelligent Systems Applications For Improving Power Systems Security." Thesis, 2009. http://hdl.handle.net/2005/1031.

Full text

Abstract:

Electric power systems are among the most complex man made systems on the world. Most of the time, they operate under quasi-steady state. With the ever increasing load demand and the advent of the deregulated power market recently, the power systems are pushed more often to operate close to their design limits and with more uncertainty of the system operating mode. With the increasing complexity and more interconnected systems, power systems are operating closer to their performance limits. As a result, maintaining system security and facilitating efficient system operation have been challengi

APA, Harvard, Vancouver, ISO, and other styles

50

Chung, Jarm-Long, and 鍾彰榮. "Exploring the Protective Coordination Problems of Overcurrent Relays and Distance Relays in Transmission Networks." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/xjce89.

Full text

Abstract:

博士<br>國立臺北科技大學<br>電機工程系所<br>98<br>The protective coordination provided by protective relays in the transmission systems is important for power safety and quality. Overcurrent relays are mainly used in protecting the subtransmission and distribution systems. In practice, the coordination curve intersection of a downstream and upstream relay pair will cause unexpected augmentation of the blackout area as a fault occurs in the downstream relay side. In addition, in a single ring or a complex low voltage power transmission network with many buses cascaded, expensive power equipments would be damag

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!