Service Restoration Through Microgrid Formation in Distribution Networks: A Review

Igder, Mosayeb Afshari; Mitolo, Massimo

doi:10.1109/access.2022.3171234

Cited by 22 publications

(7 citation statements)

References 105 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The authors of this paper maintain that such an approach can provide additional operational for the large-scale power grid, and can allow it to realize the benefits of variable DERs more effectively. In [49], the possibility of coordinating microgrids is seen as a way to improve the resiliency of distribution network. Methods for quantifying resiliency are discussed in [50] and [51], and a generic framework for analyzing the power system resiliency using NMGs is proposed in [52].…”

Section: The Proposed Control Strategy and Switching Protocolmentioning

confidence: 99%

An LMI-Based Control Strategy for Large-Scale Systems With Applications to Interconnected Microgrid Clusters

Khanbaghi

Zečević

2022

IEEE Access

View full text Add to dashboard Cite

This paper proposes a new LMI-based strategy for designing decentralized control, which is aimed at large-scale systems. A distinguishing feature of this approach is its ability to produce decentralized feedback laws without placing any structural constraints on the Lyapunov function. It also allows the user to control the number of LMI variables, which can significantly reduce the computational effort. The effectiveness of this method is illustrated through applications to interconnected microgrid clusters. Simulation results show that the proposed approach can be used to regulate energy exchanges between the clusters in a way that ensures robust stability.INDEX TERMS Linear matrix inequalities, decentralized control, robust control, interconnected microgrid clusters, large-scale systems.

show abstract

Section: The Proposed Control Strategy and Switching Protocolmentioning

confidence: 99%

An LMI-Based Control Strategy for Large-Scale Systems With Applications to Interconnected Microgrid Clusters

Khanbaghi

Zečević

2022

IEEE Access

View full text Add to dashboard Cite

show abstract

“…To address these challenges, most existing studies focus on microgrid reconstruction to enhance the resiliency of the distribution network and its ability to cope with the impact of extreme weather events [5][6][7][8][9]. For instance, study [8] proposed a strategy of running network reconstruction during strong wind events to maximize the network's resiliency while minimizing line-switching operations.…”

Section: Introductionmentioning

confidence: 99%

Strategies for Improving the Resiliency of Distribution Networks in Electric Power Systems during Typhoon and Water-Logging Disasters

Ma,

Xu,

Wang

et al. 2024

Energies

View full text Add to dashboard Cite

Coastal cities often face typhoons and urban water logs, which can cause power outages and significant economic losses. Therefore, it is necessary to study the impact of these disasters on urban distribution networks and improve their flexibility. This paper presents a method for predicting power-grid failure rates in typhoons and water logs and suggests a strategy for improving network elasticity after the disaster. It is crucial for the operation and maintenance of power distribution systems during typhoon and water-logging disasters. By mapping the wind speed and water depth at the corresponding positions in the evolution of wind and water logging disasters to the vulnerability curve, the failure probability of the corresponding nodes is obtained, the fault scenario is generated randomly, and the proposed dynamic reconstruction method, which can react in real-time to the damage the distribution system received, has been tested on a modified 33-node and a 118-node distribution network, with 3 and 11 distribution generators loaded, respectively. The results proved that this method can effectively improve the resiliency of the distribution network after a disaster compared with the traditional static reconstruction method, especially in the case of long-lasting wind and flood disasters that have complex and significant impacts on the distribution system, with about 26% load supply for the 33-node system and nearly 95% for the 118-node system.

show abstract

“…In [7], a comprehensive literature review is conducted on service restoration through microgrid formation techniques for distribution networks. Planning and service restoration through microgrid formation, virtual power plants, gridforming inverters and smart circuit breakers are some promising solutions for emergency power systems [8]- [10].…”

Section: Introductionmentioning

confidence: 99%

Emergency Power Supply System for Critical Infrastructures: Design and Large Scale Hardware Demonstration

Chakraborty,

Park,

Saraswat

et al. 2023

IEEE Access

View full text Add to dashboard Cite

Seamless recovery and sustained power to critical infrastructures (CIs), after grid failure, is a crucial need arising in disaster scenarios that are increasingly becoming more frequent. Accreditation standards recommend CIs to have emergency power supply system (EPSS) in order to form a local microgrid network with backup resources (generation units/renewable resources) in case of sudden power blackouts of main grid supply. The standards also recommend enhancements such as seamless transition capability during on-grid to off-grid jump and vice versa, efficient and optimal operation while maintaining the standard regulation and power quality limits during power contingencies, and operation with sustenance of reliable power for long periods of time. This article is proposing a comprehensive design of the EPSS for uninterrupted operation of CIs by employing novel techniques, such as 1) mode-dependent droop controlled grid-forming inverters for seamless transition capability; 2) fast-acting optimal net-load management engine for efficient and optimal operations maintaining regulation and power quality limits; 3) optimization-based horizon of viability engine for longer, sustained and viable operation in the aftermath of grid failure as recommended in standards. Two stage validations are conducted using defined test cases while considering various types of contingencies on a 3-ϕ, 60 Hz, 480 V, 450 kVA test system based on a realistic electrical network of a commercial scale medical center. The comprehensive controller-hardware-in-loop and powerhardware-in-the-loop based experiments corroborate the efficacy and robustness of the proposed strategy for EPSS employed in the CI. The mode-dependent droop controller enables seamless transition of the critical infrastructure between the off-grid and the on-grid modes. Inverters operate in the gird-forming mode when the CI is off-grid and also when the CI is on-grid while keeping frequency and voltage regulated between ±0.5 Hz and ±10% of the nominal respectively. The fast-acting net-load management engine maintains the balance in total available generation and the power demand by determining the optimal decisions within 100 ms during various contingencies while regulating the voltage, frequency, and total harmonic distortion (THD) of the system under the strict limit recommended by the grid codes. The horizon of viability optimization engine showcases advantages over conventional scheduling engines with higher utilization of critical loads and maintaining higher energy at the end of an 1-hour experiment.INDEX TERMS Droop control, emergency power supply system, generation scheduling, load management, parallel inverters.

show abstract

Service Restoration Through Microgrid Formation in Distribution Networks: A Review

Cited by 22 publications

References 105 publications

An LMI-Based Control Strategy for Large-Scale Systems With Applications to Interconnected Microgrid Clusters

An LMI-Based Control Strategy for Large-Scale Systems With Applications to Interconnected Microgrid Clusters

Strategies for Improving the Resiliency of Distribution Networks in Electric Power Systems during Typhoon and Water-Logging Disasters

Emergency Power Supply System for Critical Infrastructures: Design and Large Scale Hardware Demonstration

Contact Info

Product

Resources

About