Restoration of smart grids: Current status, challenges, and opportunities

Fan, Dongming; Ren, Yi; Liu, Yiliu; Wang, Zili; Lin, Jing

doi:10.1016/j.rser.2021.110909

Cited by 84 publications

(35 citation statements)

References 103 publications

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“…A power grid maybe restored from the negative impact of faults [174] or attacks [175], or after a blackout using black-start strategies [176]. A successful power system restoration may require an optimal start-up sequence, reconfiguration of the transmission network [177] or appropriate distribution network strategies [178]. In the presence of uncertain renewable energy resources in the generation side and uncertain and almost uncontrollable generation/demand caused by DERs, advanced restoration strategies for future power grids are required [178,179].…”

Section: B Resilience Of Power Gridsmentioning

confidence: 99%

“…A successful power system restoration may require an optimal start-up sequence, reconfiguration of the transmission network [177] or appropriate distribution network strategies [178]. In the presence of uncertain renewable energy resources in the generation side and uncertain and almost uncontrollable generation/demand caused by DERs, advanced restoration strategies for future power grids are required [178,179]. In this context, new restoration approaches have been proposed including agent-based and learning-based [180][181][182], and probability-based ones [183].…”

Section: B Resilience Of Power Gridsmentioning

confidence: 99%

See 1 more Smart Citation

Power Grids as Complex Networks: Resilience and Reliability Analysis

Amani

Jalili

2021

IEEE Access

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Power grids are cyber-physical systems and can be modelled as network systems where individual units (generators, busbars and loads) are interconnected through physical and cyber links. Network components (nodes/edges) may undergo intentional and/or random failures. In catastrophic cases, a failure initiating from a small set of these components can quickly propagate through the whole network, leading to a cascade of failures that might force a deep whole-grid blackout. Often network components have different vitality and protecting some is more critical than others. This manuscript aims to provide a focused overview of modelling power grids as complex networks and their resilience and reliability analysis. We also perform a critical review of vitality metrics and their precision in power grid resilience analysis. The review is accompanied by some simulations on benchmark and real power grids to show the applicability of these concepts in studying resilience.

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Section: B Resilience Of Power Gridsmentioning

confidence: 99%

Section: B Resilience Of Power Gridsmentioning

confidence: 99%

Power Grids as Complex Networks: Resilience and Reliability Analysis

Amani

Jalili

2021

IEEE Access

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“…A Q-learning algorithm based on HMAS was presented for restoration of distribution systems in [25]. Compared with CMAS, the hierarchical service restoration approaches have lower cost of computation and communication, which, however, will be deteriorated gradually with the increment of their structural levels [26].…”

Section: B Previous Researchmentioning

confidence: 99%

“…Owing to the phased decomposition of complex selfhealing problem and the decentralized multistage solving way, the proposed multistage FDMAS strategy can accelerate selfhealing process of distribution networks, which is demonstrated from the above cases. In contrast to the centralized or CMAS approaches that have inherent disadvantage on real time of decisions and operations [1,3,4,13,26], the proposed FDMAS strategy has intrinsic deficiency on best solution, such as without considering multi-level feeder reconfiguration. Yet it may be a more reasonable tradeoff between complexity of algorithms and real-time of selfhealing.…”

Section: B 22-bus Systemmentioning

confidence: 99%

Integrated Multistage Self-Healing in Smart Distribution Grids Using Decentralized Multiagent

Deng

Zhang

et al. 2021

IEEE Access

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Smart self-healing is perceived as a new alternative to ensure reliability and quality of power supply with the development of intelligent communication and control technology. On the basis of multistage characteristics of self-healing control, this article proposes an integrated multistage self-healing strategy for smart distribution systems using multiagent system (MAS), in which the complex self-healing problem is decomposed into phased sub-problems and is addressed by a unified control framework composed of different algorithms of stages. In the proposed control framework, decision-making agents vary with fault points and transition between self-healing stages making the technique fully decentralized. Stressing on the coordination between stage algorithms composed of communication self-adaption, fault tolerance, fault location and isolation, service restoration and state regression, the proposed strategy features well real-time control performance and relatively complete self-healing functions. Comprehensive simulation studies are carried out on the 84-bus and 22-bus distribution systems using MATLAB and JADE and the self-healing test platform respectively, and the test results have shown the effectiveness of the proposed strategy.

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“…With the recent acceleration of industrial development, the demand for power cables that possess the largest electricity infrastructure core has been rapidly growing. [1][2][3] Alternative current (AC) and direct current (DC) power cables have been progressively developed for enabling high capacity and long-distance transmission. 4,5 Existing transmission and maintenance systems for power cable operation have reached the limit for power generation and high-voltage transmission.…”

Section: Introductionmentioning

confidence: 99%

Polypropylene‐based soft ternary blends for power cable insulation at low‐to‐high temperature

Hong

Lee

Han

et al. 2021

J of Applied Polymer Sci

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Although cross-linked polyethylene (XLPE) has been widely used as a power cable insulation material in electricity infrastructure for decades, it is necessary to find alternatives that exhibit higher performance than XLPE to meet the increasing demand of the industry. To this end, polypropylene (PP) ternary blends that are soft and exhibit high temperature stability were fabricated by melt blending isotactic PP, ethylene-1-octene polyolefin elastomer and ethylene-propylene random copolymer. These blends exhibited improved higher impact resistance at low temperatures (À40 C) and room temperature than pristine iPP. The blends were mechanically stable even when the temperature was increased to ~120 C, unlike XLPE that exhibited rapid degradation of its modulus above ~90 C. Moreover, the soft ternary blends exhibited increased direct current volume resistivity and breakdown strength. Our work realizes the development of high-performance insulators for power cables that can be used over a wide range of temperatures from cold to hot environments.

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Restoration of smart grids: Current status, challenges, and opportunities

Cited by 84 publications

References 103 publications

Power Grids as Complex Networks: Resilience and Reliability Analysis

Power Grids as Complex Networks: Resilience and Reliability Analysis

Integrated Multistage Self-Healing in Smart Distribution Grids Using Decentralized Multiagent

Polypropylene‐based soft ternary blends for power cable insulation at low‐to‐high temperature

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