Laboratory Test Bed for Analyzing Fault-Detection Reaction Times of Protection Relays in Different Substation Topologies

Abstract

Visions of energy transition focus on activating end users, meaning that numerous flexible-distribution network-level devices become active participants in power-system operations. This implies a fast, reliable, and secure exchange of data, enabling the distribution-system operators to maintain, or even improve, the quality and delivery of service. With the introduction of the International Electrotechnical Commission (IEC) 61850 standard, the path is set for a single communication topology covering all substation levels. The standard has the potential to change the way substations are designed, built, tested, and maintained. This means that the key segment of the substation, its protection system, will go through a transition period with the end goal of having a digitized substation where all information exchange is performed over an Ethernet communication bus. This paper analyzes the performance impact of the IEC 61850-9-2LE on the protection system. To do this, a laboratory hardware-in-the-loop test setup was developed representing traditional-, hybrid-, and digital-substation topology. The setup serves to simulate faults and create transient waveforms in an extended IEEE 123-node test system, which is then used to detect the reaction times of protection relay devices. To verify the results, a significant number of tests was performed clearly showing the benefits of digitalizing the distribution system.

Identifying Anomalies in Industrial Networks: A Proposed Testbed for Experimental Evaluation

“…For this reason, we have included in this section relevant resources dealing with the identification of security, operational, and service anomalies. Goran Jurišić, et al focused in their paper [3] on creating of testbed created for analysis of fault detection reaction times. In their approach, they use industrial protocol GOOSE to test the time of reactions.…”

Real-Time Analysis of Time-Critical Messages in IEC 61850 Electrical Substation Communication Systems

“…The use of specific hardware setups combined with numerical simulations can be used to assess complex systems, using techniques known as hardware-in-the-loop simulation. As an example, due to the higher complexity of protection and communication systems of IEC 61850-9-2LE substations, in [26] is proposed the use of this simulation technique in a laboratory test bed for analyzing the performance of complex substation topologies that are prone to faults.…”

Bancada de reprodução de falhas em sistemas de proteção e controle-powerts

“…Dependendo da configuração programada do relé, a caixa de ensaio pode monitorar as saídas binárias ou os sinais de comunicação do equipamento testado. Todas as sequências de teste são gerenciadas e monitoradas pelo especialista em relés de proteção, tornando-as uma figura-chave em termos de testes periódicos de relés de proteção (JURISIC, et al, 2018).…”