Fault Location Technology for Power System Based on Information About the Power Internet of Things

Kong, Xiangyu; Xu, Yong; Jiao, Zaibin; Dong, Delong; Yuan, Xiaoxiao; Li, Shupeng

doi:10.1109/tii.2019.2960440

Cited by 58 publications

(23 citation statements)

References 27 publications

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“…1, and its functions are described as follows. The power Internet of Things (IoT) technique is applied to the WABP system to process wide-area data and make effective decisions because of its good performance in rapid and reliable online monitoring and control [15]. As shown in Fig.…”

Section: System Structurementioning

confidence: 99%

A Novel Fault Isolation Scheme in Power System With Dynamic Topology Using Wide-Area Information

Zhang

Tong

Hong

et al. 2022

IEEE Trans. Ind. Inf.

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The flexible and dynamic operation condition of the power system requires that the fault isolation scheme has sufficient adaptability. A novel fault isolation scheme based on wide-area information is proposed in this paper. Based on graph theory, the adjacency matrices of the electrical components and circuit breakers are constructed. The real-time switch status data is exploited to reflect the dynamic changes of the network topology. Then, the tripping path of the circuit breaker connecting each protected electrical component is searched by the Floyd-Warshall algorithm to formulate the fault isolation set for all protected electrical components. The proposed approach is applied to fault isolation from a wide-area perspective, and it is not affected by system coordination and selectivity compared with the one based on local information. The effectiveness of the proposed scheme is verified on a power system with the typical electrical connection under the cases of a single fault, multiple faults, circuit breaker failure, and substation with the outage of DC power supply, and the case where the circuit breakers cannot trip. Since the tripping sequence of the circuit breakers is determined before the fault occurs, even with dynamic changes of the power system conditions, the proposed scheme can minimize the fault isolation zone with low fault clearance time.

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Section: System Structurementioning

confidence: 99%

A Novel Fault Isolation Scheme in Power System With Dynamic Topology Using Wide-Area Information

Zhang

Tong

Hong

et al. 2022

IEEE Trans. Ind. Inf.

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“…Amoli, 2018; Kong, 2019). Nesse caso, para o operador definir o local real do defeito, torna-se útil confrontar esse resultado com outras informações do sistema, como oscilografias de relés ou disparo de disjuntores.…”

Section: Caso 1: Curto-circuito Trifásicounclassified

Localização de Faltas em Sistemas de Distribuição de Energia Elétrica Por Meio da Otimização por Nuvem de Partículas

Freitas

Zvietcovich

Damiao

et al. 2020

Anais Do Simpósio Brasileiro De Sistemas Elétricos 2020

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Em sistemas de distribuição, informações precisas sobre a localização de faltas são necessárias para a restauração rápida do serviço frente à interrupção da energia elétrica, causada por uma falta permanente. Consequentemente, tal localização também é importante para evitar grandes prejuízos nos indicadores de qualidade de energia. Assim, neste trabalho é proposta uma metodologia para a localização de faltas em sistemas de distribuição através da meta-heurística Otimização por Nuvem de Partículas. Para isso, são utilizadas as informações dos canais de medidores instalados na rede elétrica. Foram considerados diferentes tipos de curtos-circuitos: monofásico (fase-terra), bifásico (fase-fase e fase-fase-terra) e trifásico com diferentes valores de impedância de falta. Para validar a metodologia, foram utilizadas redes de 33 e 202 barras. Os resultados mostraram a eficiência do método para localizar os locais de falta, em diferentes casos abordados, com elevada precisão e baixo tempo de processamento.

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“…In recent years, Internet of things (IoT) technology has been applied in many fields of our life. With the development of application, different IoT specifications and semantic mobile computing technologies have emerged [1][2][3]. The stable power supply of each part is the basis for realizing the service interoperability between different platforms.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Optimization of Asymmetric Wireless Power Transfer in Concrete

Tian

Liu

Chen

et al. 2020

Wireless Communications and Mobile Computing

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With the rapid development of the Internet of things (IoT) technology, the application of IoT has been expanded greatly, and the disadvantages of the traditional battery power supply have become increasingly prominent. The power supply mode limits the development of the concrete structural health monitoring network. And the application of magnetic resonance coupled wireless power transfer technology can solve the problem of power supply to sensors embedded in concrete. The corrected transmission efficiency considering the concrete conductivity is proposed which establishes the relationship between the electromagnetic field and the circuit model. And the field-circuit coupled model of asymmetric wireless power transfer system in concrete is developed. The effects of radial offset and axial dislocation on the transmission efficiency at different concrete conductivity are further analyzed. The relationship between the resonant frequency and the transmission efficiency in different concrete conductivity is analyzed, and an optimization scheme is proposed to improve the transmission efficiency. Finally, the experimental setups are established, and the theoretical analysis is verified. The conclusions cannot only break through the bottleneck of the scale of the concrete structural health monitoring network but also further releases the application potential of IoT.

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Fault Location Technology for Power System Based on Information About the Power Internet of Things

Cited by 58 publications

References 27 publications

A Novel Fault Isolation Scheme in Power System With Dynamic Topology Using Wide-Area Information

A Novel Fault Isolation Scheme in Power System With Dynamic Topology Using Wide-Area Information

Localização de Faltas em Sistemas de Distribuição de Energia Elétrica Por Meio da Otimização por Nuvem de Partículas

Analysis and Optimization of Asymmetric Wireless Power Transfer in Concrete

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