Yona Lopes received her M.Sc. degree in Telecommunication Engineering and her D.Sc. degree in Computer Science from Fluminense Federal University (UFF), Niterói, Brazil, in 2019 and 2013, respectively.
Smart grids depend on a solid foundation of communications. Although standards like IEC 61850 pro... more Smart grids depend on a solid foundation of communications. Although standards like IEC 61850 proposes interoperability, autoconfiguration, and autonomous control solutions for the communication network, there are still open problems on how to efficiently forward high priority sensitive data. This work proposes a complete architecture for autonomic management and control of communication networks for substations based on IEC 61850. The proposed solution, called SMARTFlow, uses OpenFlow in order to achieve granularity and flexibility in the treatment of data flows. SMARTFlow proactively calculates Layer 2 multicast trees to forward the high priorities GOOSE and Sampled Values messages and reconfigures all flow entries in case of network failures. Also, the proposed system monitors the network and defines the configuration of client-server flows on-demand. The proposal was implemented and tested using Mininet and showed a total load up to 44 % lower than the load using typical switches.
2018 Simposio Brasileiro de Sistemas Eletricos (SBSE), 2018
The use of IEC 61850 standard is strongly based in ethernet networks. In addition to provide a se... more The use of IEC 61850 standard is strongly based in ethernet networks. In addition to provide a series of technical standardization the standard allows data integration among different bays protection devices in the same substation. As a result, a significant cost reduction of eletrical substations projects is observed. After the publication of Technical Report 90-1, this communication has been expanded to bays from different substations, allowing for more efficient and safer protection solutions. This article approaches the communication among substations based on IEC 61850-GOOSE via tunneling method with synchronous optical networks. In addition, it presents a study case involving the implementation of a project at Braskem company. The delay found in communicating using GOOSE messages between different substations relays was 4,14ms (95% confidence interval). It shows the use of synchronous optical network attended the teleprotection applications requirements.
As redes inteligentes surgem como uma evolucao do sistema de energia que incorpora redes de telec... more As redes inteligentes surgem como uma evolucao do sistema de energia que incorpora redes de telecomunicacoes a redes eletricas. Como consequencia, torna-se possivel realizar monitoramento em tempo real, deteccao e recuperacao de falhas rapidas e integracao de fontes renovaveis de forma mais facil na rede eletrica. Os programas de gerenciamento do lado da demanda apresentam solucoes para ajustar o consumo do usuario a geracao. Este trabalho introduz um sistema de gestao do lado da demanda chamado Defleger-Eco projetado para usuarios residenciais. A Defleger-Eco oferece uma gestao eficiente pelo lado da demanda, considerando os parâmetros de conforto definidos pelo usuario com o objetivo de reduzir a “conta energia eletrica” ao usar uma tarifa variavel. Simulamos nossa proposta em quatro cenarios diferentes, apresentando as vantagens do mecanismo para consumidores e distribuidoras de energia, considerando a proposta da tarifa branca como estudo de caso. Smart grids arises as a power s...
2017 IFIP/IEEE Symposium on Integrated Network and Service Management (IM), 2017
In smart grids, the broad use of Distributed Energy Resources (DERs) in distribution networks int... more In smart grids, the broad use of Distributed Energy Resources (DERs) in distribution networks introduces the need for protective relaying schemes similar to those used in high-voltage networks. The introduction of intermittent DERs, as solar panels, also requires more autonomic and dynamic SCADA networks. Hence, power systems experience an increased demand for resilience in the distribution communication network. However, resilience methods currently in use still cannot meet those protection requirements. This work proposes ARES, a framework for autonomic and resilient communication for smart grids. ARES provides resilient, robust, and flexible communication for smart grids with Software Defined Network (SDN). Our proposal also provides autonomic services for SCADA that can improve smart grid application performance and efficiency. ARES fault resilience module is implemented and tested using Mininet 2.2.1 and RYU controller and presents maximum recovery time of 610 microseconds, whi...
2019 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC), 2019
The IEC 61850 standard provides services, protocols, and a language to ease modeling and communic... more The IEC 61850 standard provides services, protocols, and a language to ease modeling and communication of IEDs (Intelligent Electronic Devices) and supervision devices in power system automation. However, functional and vulnerability testing in IEC 61850 substations can become a non-trivial and expensive task. The event-based behavior of the GOOSE protocol hampers performance tests on IEC 61850 networks. Also, the processing cycle of IEDs itself limits communication speed by tying the sending rate to its cycle. The obstacles found in changing the values of attributes in real IEDs are also a limitation while performing vulnerability tests. This paper proposes a packet generator that allows users to create and send packets according to GOOSE, SV and MMS protocols using a graphical interface. This sets our proposal apart from other tools discussed in this paper, by providing a user-friendly interface that focuses specifically on generating packets for each IEC 61850 protocol to make it...
2021 IFIP/IEEE International Symposium on Integrated Network Management (IM), 2021
Supervisory and control systems should provide reliable and autonomic functionalities for real-ti... more Supervisory and control systems should provide reliable and autonomic functionalities for real-time communication. The new generation of communication-based energy applications relies on networks to exchange messages between devices in the substation. Therefore, the underlying communication network must satisfy strict temporal constraints imposed by these complex electrical power systems. In this work, we present a practical description of THANOS: an SDN-based application built on top of ONOS that facilitates discovery, communication configuration, and monitoring of intelligent devices in IEC 61850 compliant substations. THANOS enables automatic configuration of IEC 61850 protocols with failure recovery support. THANOS also supports multiple backup instances to improve control resiliency. We first present an overview of THANOS architecture. Then, we highlight the challenges and lessons learned during the development of THANOS. Finally, we present experiments that evaluate THANOS’ fu...
2018 Simposio Brasileiro de Sistemas Eletricos (SBSE), 2018
With the protection devices, evolution towards the digital microprocessor technology comes new ch... more With the protection devices, evolution towards the digital microprocessor technology comes new challenges and opportunities. It may be easier today, for example, to create and keep a protection devices asset lists. This paper presents a software tool for scanning and analysis over 61850 networks and by this way, create an asset report for the protection devices within an electrical substation and, with the scan results, it offers a list of IEC 61850 enabled devices and a list of available functions protection for each IED.
Smart grids depend on a solid foundation of communications. Although standards like IEC 61850 pro... more Smart grids depend on a solid foundation of communications. Although standards like IEC 61850 proposes interoperability, autoconfiguration, and autonomous control solutions for the communication network, there are still open problems on how to efficiently forward high priority sensitive data. This work proposes a complete architecture for autonomic management and control of communication networks for substations based on IEC 61850. The proposed solution, called SMARTFlow, uses OpenFlow in order to achieve granularity and flexibility in the treatment of data flows. SMARTFlow proactively calculates Layer 2 multicast trees to forward the high priorities GOOSE and Sampled Values messages and reconfigures all flow entries in case of network failures. Also, the proposed system monitors the network and defines the configuration of client-server flows on-demand. The proposal was implemented and tested using Mininet and showed a total load up to 44 % lower than the load using typical switches.
2018 Simposio Brasileiro de Sistemas Eletricos (SBSE), 2018
The use of IEC 61850 standard is strongly based in ethernet networks. In addition to provide a se... more The use of IEC 61850 standard is strongly based in ethernet networks. In addition to provide a series of technical standardization the standard allows data integration among different bays protection devices in the same substation. As a result, a significant cost reduction of eletrical substations projects is observed. After the publication of Technical Report 90-1, this communication has been expanded to bays from different substations, allowing for more efficient and safer protection solutions. This article approaches the communication among substations based on IEC 61850-GOOSE via tunneling method with synchronous optical networks. In addition, it presents a study case involving the implementation of a project at Braskem company. The delay found in communicating using GOOSE messages between different substations relays was 4,14ms (95% confidence interval). It shows the use of synchronous optical network attended the teleprotection applications requirements.
As redes inteligentes surgem como uma evolucao do sistema de energia que incorpora redes de telec... more As redes inteligentes surgem como uma evolucao do sistema de energia que incorpora redes de telecomunicacoes a redes eletricas. Como consequencia, torna-se possivel realizar monitoramento em tempo real, deteccao e recuperacao de falhas rapidas e integracao de fontes renovaveis de forma mais facil na rede eletrica. Os programas de gerenciamento do lado da demanda apresentam solucoes para ajustar o consumo do usuario a geracao. Este trabalho introduz um sistema de gestao do lado da demanda chamado Defleger-Eco projetado para usuarios residenciais. A Defleger-Eco oferece uma gestao eficiente pelo lado da demanda, considerando os parâmetros de conforto definidos pelo usuario com o objetivo de reduzir a “conta energia eletrica” ao usar uma tarifa variavel. Simulamos nossa proposta em quatro cenarios diferentes, apresentando as vantagens do mecanismo para consumidores e distribuidoras de energia, considerando a proposta da tarifa branca como estudo de caso. Smart grids arises as a power s...
2017 IFIP/IEEE Symposium on Integrated Network and Service Management (IM), 2017
In smart grids, the broad use of Distributed Energy Resources (DERs) in distribution networks int... more In smart grids, the broad use of Distributed Energy Resources (DERs) in distribution networks introduces the need for protective relaying schemes similar to those used in high-voltage networks. The introduction of intermittent DERs, as solar panels, also requires more autonomic and dynamic SCADA networks. Hence, power systems experience an increased demand for resilience in the distribution communication network. However, resilience methods currently in use still cannot meet those protection requirements. This work proposes ARES, a framework for autonomic and resilient communication for smart grids. ARES provides resilient, robust, and flexible communication for smart grids with Software Defined Network (SDN). Our proposal also provides autonomic services for SCADA that can improve smart grid application performance and efficiency. ARES fault resilience module is implemented and tested using Mininet 2.2.1 and RYU controller and presents maximum recovery time of 610 microseconds, whi...
2019 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC), 2019
The IEC 61850 standard provides services, protocols, and a language to ease modeling and communic... more The IEC 61850 standard provides services, protocols, and a language to ease modeling and communication of IEDs (Intelligent Electronic Devices) and supervision devices in power system automation. However, functional and vulnerability testing in IEC 61850 substations can become a non-trivial and expensive task. The event-based behavior of the GOOSE protocol hampers performance tests on IEC 61850 networks. Also, the processing cycle of IEDs itself limits communication speed by tying the sending rate to its cycle. The obstacles found in changing the values of attributes in real IEDs are also a limitation while performing vulnerability tests. This paper proposes a packet generator that allows users to create and send packets according to GOOSE, SV and MMS protocols using a graphical interface. This sets our proposal apart from other tools discussed in this paper, by providing a user-friendly interface that focuses specifically on generating packets for each IEC 61850 protocol to make it...
2021 IFIP/IEEE International Symposium on Integrated Network Management (IM), 2021
Supervisory and control systems should provide reliable and autonomic functionalities for real-ti... more Supervisory and control systems should provide reliable and autonomic functionalities for real-time communication. The new generation of communication-based energy applications relies on networks to exchange messages between devices in the substation. Therefore, the underlying communication network must satisfy strict temporal constraints imposed by these complex electrical power systems. In this work, we present a practical description of THANOS: an SDN-based application built on top of ONOS that facilitates discovery, communication configuration, and monitoring of intelligent devices in IEC 61850 compliant substations. THANOS enables automatic configuration of IEC 61850 protocols with failure recovery support. THANOS also supports multiple backup instances to improve control resiliency. We first present an overview of THANOS architecture. Then, we highlight the challenges and lessons learned during the development of THANOS. Finally, we present experiments that evaluate THANOS’ fu...
2018 Simposio Brasileiro de Sistemas Eletricos (SBSE), 2018
With the protection devices, evolution towards the digital microprocessor technology comes new ch... more With the protection devices, evolution towards the digital microprocessor technology comes new challenges and opportunities. It may be easier today, for example, to create and keep a protection devices asset lists. This paper presents a software tool for scanning and analysis over 61850 networks and by this way, create an asset report for the protection devices within an electrical substation and, with the scan results, it offers a list of IEC 61850 enabled devices and a list of available functions protection for each IED.
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