Optimal islanding for restoration of power distribution system using Prim's MST algorithm

Sanaullah, Kaka; Xia, Mingchao; Hussain, Mazhar; Hussain, S. Nazeer; Tahir, Ammar

doi:10.17775/cseejpes.2020.01580

Cited by 4 publications

(6 citation statements)

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“…The amounts of C1 and C2 are assumed to be 3% and 5%, respectively. The results obtained by our proposed method are compared in Table 7 with the results of papers [19], [28] and [33] and the results are clearly better. In the paper [33], the reserve power is not considered, and the location and power of the DGs are different from the test system used in this paper.…”

Section: Study Case 4: Island Partitioning In a Smart Distribution Ne...mentioning

confidence: 98%

“…In the paper [33], the reserve power is not considered, and the location and power of the DGs are different from the test system used in this paper. Therefore, for a better comparison, the power amount of DGs and their locations have been considered according to the paper [33], and the power reservation has been ignored, and the results can be seen in the last column of Table 7.…”

Section: Study Case 4: Island Partitioning In a Smart Distribution Ne...mentioning

confidence: 99%

“…Indeed, whether considering the reserve power or not, the ratio of restored load to the output power of DGs is about 99.75%, which is more than other methods. Meantime, papers [28] and [33] have not considered multiple faults. In case of two simultaneous faults in lines 2 and 8 with the same conditions as the third study case, the results in two cases considering the reserve power and without considering the reserve power are shown in Table 8.…”

Section: Study Case 4: Island Partitioning In a Smart Distribution Ne...mentioning

confidence: 99%

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Island partitioning of smart distribution systems in emergency situations considering voltage and frequency stability

Najafabadi

Foroud

2023

Preprint

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Island partitioning is a solution to restore service in smart distribution systems after the disconnection of the main grid due to faults. A two-stage and multi-objective solution is presented to restore the services of the island system. At first stage, the proposed partitioning scheme is presented with regards to the available time to decide on control measures, considering the voltage stability and the priority and controllability of the loads in the load shedding, and considering the frequency response and the voltage stability margin in finding the borders of the partitions. In the second stage, optimal power flow is done to set the partitions and satisfy the system operational constraints. The results show the proposed method not only leads to the creation of partitions with the allowable bus voltage and frequency but also leads to the lowest losses, the largest amount of restored load, and supplying loads with the highest values. Moreover, proposed method is more comprehensive due to considering voltage stability, frequency stability, occurrence of simultaneous faults, existence of controllable and uncontrollable distributed generation, power reserve, controllability of loads and DGs, position of switches, maximum time available to make decisions about control measures and the time delay between control measures

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Section: Study Case 4: Island Partitioning In a Smart Distribution Ne...mentioning

confidence: 98%

Section: Study Case 4: Island Partitioning In a Smart Distribution Ne...mentioning

confidence: 99%

Section: Study Case 4: Island Partitioning In a Smart Distribution Ne...mentioning

confidence: 99%

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Island partitioning of smart distribution systems in emergency situations considering voltage and frequency stability

Najafabadi

Foroud

2023

Preprint

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“…Differing from the previous works (Rachmawati et al, 2020;Sanaullah et al, 2020) where the minimum spanning tree algorithm was selected to solve the topology, the solution algorithm of ICPPSs is proposed to obtain the topology. 3) By optimizing islanded power systems and islanded cyber systems individually, cooperative optimization is constructed such that the resources of the dynamic resilience are reduced, which has not been well studied in the existing literature.…”

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confidence: 99%

Cooperative Resilience of Cyber–Physical Power Systems Under Hybrid Attacks via Dynamic Topology

Jin

Liu

et al. 2022

Front. Energy Res.

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In this study, the cooperative resilience of cyber–physical power systems under hybrid attacks is investigated. First, a detection model of physical attacks depending on the residual of the output impedance angle is established. Second, by analyzing the encrypted communication between physical and cyber systems, a detection algorithm for cyberattacks is proposed. Then, by using an enumeration method, islanded cyber–physical power systems are built with non-attacked and repaired parts. Moreover, to save resilient resources, cooperative optimization is established after the individual optimization of islanded cyber and physical systems. Since the building and optimization are executed alternately, the topology of the systems is dynamic. Finally, simulation results demonstrate the effectiveness of the proposed method.

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“…• If the line is selected for energization using [31], having a switch then the buses connecting the line must be energized.…”

mentioning

confidence: 99%

An Adaptive and Resilient Islanding Approach for Power System Considering Secondary Collapses

Ka’ka¹,

Xia²,

Hussain³

et al. 2020

Preprint

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The power system vulnerability leads to faults and the severity of the fault may lead to prolonged load-shedding. The power system needs to be configured in extreme failure scenarios for protecting the network from further contingencies and prolonged load-shedding. Distributed generation resources (DGs) can be useful to form intentional islands after faults to maintain the continuity of power supply to loads based on their weightage during faulty periods and to reduce overall load shedding duration. Power system is bound to collapses and secondary collapse in the formed island is possible. This research represents a novel method of impedance based path finding for intentional islanding, which adapts itself with the changes in the demands, DGs outputs or further severities during restoration period. In this adaptive islanding approach, network adjusts itself with the changes in either the load demands or renewable DGs outputs and rearranges the restoration plan by curtailing or adding some of the loads through controllable switches. Further a secondary collapse in the existing island is studied by injecting multiple faults at various positions of the network to validate the system resilience to cope with severities. A short-term load forecasting approach is used to predict changes in load demands and variations in DG outputs during the islanding scheme. During the restoration period, these variations are tracked and the islands are modified accordingly. In order to minimize the overall generation cost by using less fuel, an economical approach is used in the selection of controllable DGs. The proposed approach is formulated as a multi-objective, that incorporates several operational constraints and simulation is carried out using the modified IEEE 69-bus distribution system to assess the efficacy of the proposed model.

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Optimal islanding for restoration of power distribution system using Prim's MST algorithm

Cited by 4 publications

References 0 publications

Island partitioning of smart distribution systems in emergency situations considering voltage and frequency stability

Island partitioning of smart distribution systems in emergency situations considering voltage and frequency stability

Cooperative Resilience of Cyber–Physical Power Systems Under Hybrid Attacks via Dynamic Topology

An Adaptive and Resilient Islanding Approach for Power System Considering Secondary Collapses

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