DGs for Service Restoration to Critical Loads in a Secondary Network

Xu, Yin; Liu, Chen‐Ching; Wang, Zhiwen; Mo, Kefei; Schneider, Kevin P.; Tuffner, Francis K.; Ton, Dan

doi:10.1109/tsg.2017.2743158

Cited by 112 publications

(77 citation statements)

References 32 publications

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“…The system performance function has been defined as the total power that is supplied to critical loads based on their priority. Similar metrics have been proposed in [55]- [57].…”

Section: B Metrics Based On Resilience Featuresmentioning

confidence: 86%

“…The effect of DG to speed up the restoration processes during and after extreme events has been presented in [78]. A three-step look-ahead load restoration strategy using synchronized DG through restoring critical loads after a major natural disaster has been developed in [57], [99]. In [104], the authors have developed a distribution service restoration model to generate optimal switching sequence based on remotely and manually controlled switches and dispatchable DGs in extreme events.…”

Section: A Operation-based Resilience Enhancement Methodsmentioning

confidence: 99%

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Power System Resilience: Current Practices, Challenges, and Future Directions

et al. 2020

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The frequency of extreme events (e.g., hurricanes, earthquakes, and floods) and man-made attacks (cyber and physical attacks) has increased dramatically in recent years. These events have severely impacted power systems ranging from long outage times to major equipment (e.g., substations, transmission lines, and power plants) destructions. This calls for developing control and operation methods and planning strategies to improve grid resilience against such events. The first step toward this goal is to develop resilience metrics and evaluation methods to compare planning and operation alternatives and to provide techno-economic justifications for resilience enhancement. Although several power system resilience definitions, metrics, and evaluation methods have been proposed in the literature, they have not been universally accepted or standardized. This paper provides a comprehensive and critical review of current practices of power system resilience metrics and evaluation methods and discusses future directions and recommendations to contribute to the development of universally accepted and standardized definitions, metrics, evaluation methods, and enhancement strategies. This paper thoroughly examines the consensus on the power system resilience concept provided by different organizations and scholars and existing and currently practiced resilience enhancement methods. Research gaps, associated challenges, and potential solutions to existing limitations are also provided. INDEX TERMS Critical review, extreme events, power system resilience, resilience definitions, metrics, and enhancement strategies. MOHAMMED BENIDRIS (Member, IEEE) received the B.Sc. and M.Sc. degrees in electrical engineering from the

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“…The system performance function has been defined as the total power that is supplied to critical loads based on their priority. Similar metrics have been proposed in [55]- [57].…”

Section: B Metrics Based On Resilience Featuresmentioning

confidence: 86%

Section: A Operation-based Resilience Enhancement Methodsmentioning

confidence: 99%

Power System Resilience: Current Practices, Challenges, and Future Directions

et al. 2020

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“…The heating system model comprises of the nodal supply and return temperature differences (7)-(8), nodal heating power demand equation (9), nodal heating power source equation (10), nodal water mass balance equation (11) and head loss equation (12) [16]. It is noted that sign 1 (m ba ) in (11) is the sign function, where sign 1 (m ba ) =1 when m ba >0, and otherwise sign 1 (m ba )=0; and sign 2 (m ab ) in (12)…”

Section: Heating Systemmentioning

confidence: 99%

“…As a basic tool, energy flow calculation (EFC) plays a significant role in steady-state analysis of MESs, such as day-ahead dispatch [9], static security analysis [10] and service restoration [11]. However, high-order nonlinear EFC models are challenging to solve due to the limited information sharing between subsystems, which are generally managed by different operators.…”

Section: Introductionmentioning

confidence: 99%

A Fixed-Point Based Distributed Method for Energy Flow Calculation in Multi-Energy Systems

Zhang

Meng

et al. 2020

IEEE Trans. Sustain. Energy

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Energy flow calculation (EFC) plays an important role in steady-state analysis of multi-energy systems (MESs). However, the independent management of sub-energy systems (subsystems) poses a considerable challenge to solve the high-order nonlinear energy flow model due to the limited information exchange between these subsystems. In this paper, a fixed-point based distributed method is proposed for EFC in an electricity-gas-heating system. Firstly, the mathematical modeling of each subsystem with coupling units is introduced. Then, two information exchange structures among subsystems are presented as sequential and parallel structures. Based on the fixed-point theorem, novel distributed sequential and parallel methods for EFC are proposed to calculate energy flow distribution in MESs. In our proposed method, the EFC in subsystems is implemented by the individual system operators, with limited information exchange between subsystems. Therefore, the information privacy of subsystems can be preserved in this solution process. Moreover, the convergence of the proposed method is guaranteed, and the sufficient conditions for the convergence are presented. Lastly, simulations on a MES demonstrate the effectiveness of the proposed method and the quantified superiority over the existing methods in computation time, accuracy and reliability. 1 Index Terms-Distributed method, energy flow calculation, fixed-point, high-order nonlinear equation, multi-energy system. i The active and reactive loads at bus i. P lossThe power loss of whole networks. ∆P i , ∆Q i Active and reactive power mismatches at bus i.

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“…Contudo, assim como acontece nas radiais, estas topologias não foram projetadas para agregarem geradores no lado dos consumidores, pois esta integração é referida como desafiadora, podendo levar à degradação dos perfis de tensão, acometer sobrecorrentes nos ramos da rede elétrica, além de provocar o disparo inadequado dos protetores de rede (Network Protectors), dispositivos de proteção que não permitem fluxo de potência no sentido contrário ao convencional, ou seja, partindo das cargas em direção à subestação (IEEE.1547.6, 2011; IEEE.C57.12.44, 1.1. Motivação XU et al, 2017). Este é um dos fatores, juntamente com o elevado custo de investimento da estrutura, que demanda estudos precisos para contornar os desafios impostos.…”

Section: Introductionunclassified

Análise da influência de elevados níveis de geração fotovoltaica na operação das redes reticuladas de distribuição de energia elétrica

Dias¹

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Agradeço, primeiramente, a Deus pela incrível oportunidade de viver e assim poder buscar novas experiências e aprendizados. Aos meus pais Rosane Rosa e João Batista Dias, meus irmãos Mirella Rosa Dias e Alex Rosa Dias, minha avó Rosa Alberto Rosa e minha sobrinha Livia Dias da Silva, por toda a estrutura que me proporcionaram até este momento e, com certeza, continuará até a concretização deste sonho. Seus votos de amor, amizade e confiança tornam esta caminhada mais serena. À minha namorada Thais Arruda Costa Joca, por todo amor, compreensão, apoio e motivação. O sonho é meu e você tem feito questão de vivê-lo, também, intensamente. Eternamente grato! Ao Prof. Dr. José Carlos de Melo Vieira Júnior pela cordialidade com que sempre me recebeu e conduziu todo esse período de orientação tanto no mestrado quanto no Programa de Aperfeiçoamento ao Ensino (PAE), pela confiança, amizade e pelo conhecimento compartilhado que será, sem dúvida, um diferencial para a minha carreira profissional. Aos amigos de pós-graduação por compartilharem tantos momentos bons: de estudos, palquinhos, apresentações das orquestras, dos coockies, barzinhos, churrascos sensacionais e, sem dúvida, de confraternização todos os dias durante o indispensável café. Enfim, afirmo que obtive tamanha experiência profissional e pessoal ao lado de vocês e, por isso, deixo os meus sinceros agradecimentos.

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DGs for Service Restoration to Critical Loads in a Secondary Network

Cited by 112 publications

References 32 publications

Power System Resilience: Current Practices, Challenges, and Future Directions

Power System Resilience: Current Practices, Challenges, and Future Directions

A Fixed-Point Based Distributed Method for Energy Flow Calculation in Multi-Energy Systems

Análise da influência de elevados níveis de geração fotovoltaica na operação das redes reticuladas de distribuição de energia elétrica

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