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Here is presented the weekly progress of the work being developed.

Week 17 October- 21 October

  • Bibliographic research on the theme;

  • Creation of the webpage;

  • Reading of the book "Smart Grid Technology and Applications", written by J. Ekanayake, K. Liyanage, J. Wu, A. Yokoyama e N. Jenkins;

  • Started reading the book "Protection of Electricity Distribution Networks", written by Juan M. Gers e Edward J. Holmes;

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  • Principal difficulties: being able to understand the main aspects of the work.

Week 22 October - 28 October

  • Finished reading the book "Protection of Electricity Distribution Networks", written by Juan M. Gers e Edward J. Holmes.

  • Reading of the following articles:

    • "InovGrid Project - Distribution Network Evolution as a Decisive Answer to New Electrical Sector Challenges", written by L. V. Cunha, F. Gomes, J. P. Lopes, J. C. Reis e J. Antunes;

    • "Smart Grid Solutions and current projects deployment: InovGrid Project", written by Nuno Silva;

    • "Distribution Automation on LV and MV Using Distributed Intelligence", written by F. Melo, N. Silva, C. Cândido, F. Campos, C. Fortunato e P. Reis;

    • "Preventive Assessment for Combined Control Centre and Substation-Centric Self-Healing Strategies", written by A. Bernardo, N. Silva, A. Carrapatoso e G. Ockwell;

    • "Control Architectures to Perform Voltage Regulation on Low Voltage Networks Using DG", written by N. Costa, A. Bernardo, N. Silva, N. Delgado e A. Carrapatoso;

    • "DG Behaviour and Protection Schemes in Case of Disturbances Within The Concept of Distribution Grid Area", written by A. Bernardo, N. Silva, N. Delgado, R. Jorge e A. Carrapatoso;

    • "Technical and Economic Assessment for Deployment of Distribution Automation Equipments" - Enabling Self-Healing Strategies", written by R. Moreira, N. Silva e H. Leite;

    • "Advanced and Adaptive Protection for Active Distribution Grid", written by S. S. Venkata, D. Wilson, J. Ren e M. Miller;

    • "Digital relays for smart grid protection", de F. Muzi.

  • Reading of Craig M. Smith masters dissertation: "Adaptive Protection for Smart Grids".

  • Started reading some documents about the equipments developed on Efacec and used on protection and control of the Distribution Network. 

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  • Principal difficulties: relate the literature with the objectives of the work.

Week 1 March - 7 March

  • Continuing reading some documents about the equipments developed on Efacec and used on protection and control of the Distribution Network.

  • Reading of the following articles:

    • "Adaptive Protection System for Distribution Networks with Distributed Energy Resources", written by N. Schaefer, T. Degner, A. Shustov, T. Keil e J. Jaeger;

    • "Adaptive Protection Architecture for the Smart Grid", written by I. Abdulhadi, F. Coffele, A. Dysko, C. Booth e G. Burt;

    • "Studies on Grid Impacts of Distributed Generation in a Combined Real-Time Simulation Environment", written by K. Maki, A. Kulmala, S. Repo e P. Jarventausta;

    • "Adaptive Setting of Protective Relays in Microgrids in grid-connected and autonomous operation", written by M. Khederzadeh;

    • "Simplifying the Configuration of Multifunctional Protection Relays", written by A. Apostolov, D. Tholomier e S. Richards;

  • Started writting chapter 2 of the dissertation.

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  • Principal difficulties: not being able to put in the references some documents read from the sustainable project, which are important to the dissertation, because those documents are confidencial.

Week 8 March - 14 March

  • Continuing writting chapter 2 and beginning writting chapter 3.

  • Reading of the following articles:

    • "Adaptive Protection of Distribution Feeders", written by Alexander Apostolov;

    • "Digital Relay Based Adaptive Protection for Distributed Systems with Distributed Generation", written by P. S. Babu, S. V. J. Kumar e P. R. K. Chaitanya;

    • "Adaptive Protection Schemes for the Microgrid in a Smart Grid Scenario: Technical Challenges", written by P. Gupta, R. S. Bhatia e D. K. Jain;

    • "Adaptive Protection Algorithm for Overcurrent Relay in Distribution System with DG", written by B. C. Sung, S. H. Lee, J. Park e A. P. S. Meliopoulos;

    • "Impact of Smart Grid on Distribution System Design", written by Richard E. Brown;

    • "Analysis of the Effect of Distributed Generation on Power Grid", written by L. H. Yang, G. S. Yun e L. Hong;

    • "Review of Impact of Distributed Generation on Distribution System", written by H. Shuang e G. QinXiang;

    • "Protection, Transient Stability and Fault Ride-Through Issues in Distribution Networks with Dispersed Generation", written by I. Xyngi, M. Popov, A. Ishchenko e L. Sluis;

    • "Distributed Generation Protection Scheme to permite "Ride-Through Fault"", written by H. Leite, P. Ramalho, B. Silva e R. Fiteiro.

  • Reading of Luís Filipe Moreira master dissertation: "Avaliação Técnico-Económica na Implementação de Estratégias de Otimização Distribuída em Smart Grids".

  • Reading of Luís Miguel Moreira master dissertation: "Ciclo de Vida dos Sistemas de Proteção Comando e Controlo: Estratégias de Manutenção Versus Investimento".

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  • Principal difficulties: being able to define the structure of the dissertation

Week 15 March - 21 March

  • Continuing writting chapters 2 and 3.

  • Reading of João Lopes Ferreira master dissertation: "Os Órgãos de Corte de Rede de 3ª Geração nas Redes de Distribuição de Média Tensão".

  • Reading of Vitor Miguel Preto master dissertation: "Rede de Distribuição Ativas".

  • Reading of the following articles:

    • "Impact of Distributed Generation on networksecurity: effects on loss-of-main protectionreliability", written by F. Bignucolo, R. Caldon, M. Frigo, A. Morini, A. Pitto and F. Silvestro;

    • "Analysis of Fault Detection and Location inMedium Voltage Radial Networks withDistributed Generation", written by J. I. Marvik, A. Petterteig and H. K. Hoidalen;

    • "Analysis of the Sympathetic Tripping Problem for Networks with HighPenetrations of Distributed Generation", written by K. Jennet, C. Booth and M. Lee;

    • "Differential ROCOF Relay for Loss-of-Mains Protection of RenewableGeneration using Phasor Measurement over Internet Protocol" written by D. Laverty, D. Morrow, R. Best and P. Crossley;

    • "Sympathetic Trip Prevention by ApplyingSimple Current Relays", written by S. Mladenovic and A. Azadvar;

    • "Impact of DG Location on Protection Coordination in Distribution Systems", written by M. Mijalili, A. Sedighi and M. Haghifam;

    • "A Strategy for Protection Coordination in Radial Distribution Networks with Distributed Generators", written by A. Zamani, T. Sidhu and A. Yazdani;

    • "A New Adaptive Method for Distribution System Protection Considering Distributed GenerationUnits Using Simulated Annealing Method", written by H. Akhondi and M. Saifali. 

   

  • Principal difficulties: being able to define the structure of the dissertation

Week 22 March - 28 March

  • Rewrite of chapter 3.

  • Reading of Anabela Ribeiro master dissertation: "Coordenação do Sistema de Protecção numa Rede de Média Tensão com elevada penetração de Geração Eólica".

  • Reading of João Mário Moreira master dissertation: "Teste em Tempo Real das Funções de Protecçãode uma saída de Média Tensão com Produção Renovável Eólica".

  • Reading of António Oliveira master dissertation: "Validação das Funções de Protecção de uma Saída de Média Tensão com Produção Renovável Eólica usando o CAPE Software".

  • Analysis of protection problems and their theoretical prove when there is Ditributed Generation on the Distribution Network.   

   

  • Principal difficulties: ----

Week 29 March - 4 April

  • Continuation of the analysis of protection problems and their mathematical prove when there is Ditributed Generation on the Distribution Network.

  • Analysis of the protection settings used by EDP Distribuição on protections function on the MV feeder ("EDP Guia de Regulação e Automação").

  • Mathematical prove of sympathetic tripping on Distribution Network and calculation of protection settings.

  • Reading of:

    • Distribution Network Regulation: "Portaria 596/2010 RRT RRD";

    • Regulation EDPDEF-C13-570/N: "Instalações AT e MT. Subestações de Distribuição - Sistemas de Proteção, Comando e Controlo Numérico (SPCC). Funções de Proteção".

   

  • Principal difficulties: ----

Week 5 April - 11 April

  • Update of the objetives and Gantt's diagram.

  • Continuation of mathematical prove of sympathetic tripping on Distribution Network and calculation of protection settings.

  • Started thinking on some solutions to prevent sympathetic tripping.

  • Reading of the article "Summary of Distributed Resources Impact on Power Delivery Systems", written by R. A. Walling, Robert Saint, Roger C. Dugan, Jim Burke and Ljubomir A. Kojovic.

  • Demonstration of RTDS and some guidelines on how to use it.

   

  • Principal difficulties: ----

Week 12 April - 18 April

  • Conclusion of mathematical prove of sympathetic tripping on Distribution Network and calculation of protection settings.

  • Continued to thinking on some solutions to prevent sympathetic tripping.

  • Design of the network in study on the RSCAD software.

  • Use of RTDS to run the network designed. 

   

  • Principal difficulties: Start using RTDS all alone.

Week 19 April - 25 April

  • Conclusion of the design of the network in study on RSCAD.

  • Verification of sympathetic tripping with RTDS on the network designed.

  • Started exporting analogue signals from RTDS and see them on the oscilloscope. 

   

  • Principal difficulties: Run the network on RTDS without any error.

Week 26 April - 2 May

  • Started connecting a commercial relay to RTDS.

  • Export the signals from RTDS and read them on the protection relay

  • Started trying to obtain a digital signal from the commercial relay, corresponding to the openning of the circuit breaker.

  • Continued to thinking on some solutions to prevent sympathetic tripping.

   

  • Principal difficulties: ----

Week 3 May - 9 May

  • Continued trying to obtain a digital signal from the commercial relay, corresponding to the openning of the circuit breaker.

  • Continued to thinking on some solutions to prevent sympathetic tripping.

  • Started to design the architecture developed according to the specifications of the sustainable project, to apply adaptive protection.

   

  • Principal difficulties: Being able to understand how the input of the digital signal is executed.

Week 10 May - 16 May

  • Finished obtaining the digital signal from the commercial relay, corresponding to the openning of the circuit breaker.

  • Continued to design the architecture developed according to the specifications of the sustainable project, to apply adaptive protection.

  • Reading of the report "Fault Current Contributions from Wind Plants" written for the Transmission and Distribution Committee, Electric Machinery Committee, Power System Relaying Committee of the IEEE Power and Energy Society, prepared by the Joint Working Group. 

  • Finished writting chapter 2.

   

  • Principal difficulties: ---

Week 17 May - 23 May

  • Finished the design of the architecture developed according to the specifications of the sustainable project, to apply adaptive protection.

  • Reading of the articles:

    • "Selected Problems of Protective Relaying for Distribution Network with Distributed Generation", written by W. Rojewcki, Z. A. Styczynski and J. Izykowski;

    • "Dynamic SCADA/DMS Data Model - Plug & Play Smart Grid Solutions", written by N. Silva, D. Marsh, A. Rodrigues and C. M. Pinto.

  • Readinf of Ivo Ferreira master dissertation: "Sistemas de Controlo e Supervisão de Sistemas Embebidos - Tipo SCADA".

  • Writting of the chapter 3.

   

  • Principal difficulties: ---

Week 24 May - 30 May

  • Finished writting chapter 3;

  • Some alterations to the design of the architecture developed according to the specifications of the sustainable project, to apply adaptive protection.

  • Writting of the chapter 4.

   

  • Principal difficulties: Being able to explain some pertinent details of the architecture.

Week 31 May - 6 June

  • Finished writting chapter 4;

  • Connection of TPU S220 to the RTDS Simulator;

  • Writting of the chapter 5.

   

  • Principal difficulties: Configuration of digital I/O in TPU S220.

Week 7 June - 13 June

  • Continued writting chapter 5;

  • Installation of Automation Studio to configure TPU S220;

  • Connection of TPU S220 to the computer with Automation Studio - configuration of the connection;

  • Update of the firmware version of the TPU S220;

  • Implementation of a programmable logic in Automation Studio for the TPU S220 to make it possible the change of setting group;

  • Testing of the binary inputs of the TPU to verify the change of setting group;

  • Trying to find a solution for the connection of binary output of the RTDS to the binary input of the TPU S220.

   

  • Principal difficulties: While updating the firmware version of the EFACEC TPU S220, the TPU S220 started malfunctioning and so it had to go Efacec to solve the problem. The rated voltage of the binary inputs of the TPU is greater than the rated voltage provided by the digital output of the RTDS which makes it imposible the transmission of a digital signal between them.

Week 14 June - 20 June

  • Continued writting chapter 5;

  • Continued trying to find a solution for the connection of RTDS binary output to the TPU S220 binary input.

   

  • Principal difficulties: ---

Week 21 June - 30 June

  • Conclusion of the writting of chapter 5;

  • Writting of the chapter 1;

  • Writting of the chapter 6; 

  • Execution of a real-time closed-loop test with the RTDS Simulator FEUP and a commercial protective relay, EFACEC TPU S220.

  • Analysis of the results from the closed-loop test.

  • Last revisions of the dissertation.

   

  • Principal difficulties: ---

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