Communication-based Adaptive Protection for Distribution Systems Penetrated with Distributed Generators

Osman, Ahmed; Hassan, Mohamed S.; Sulaiman, M. I.

doi:10.1080/15325008.2014.992500

Cited by 19 publications

(13 citation statements)

References 6 publications

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“…The contribution of Inverter Based Distributed Generation (IBDG) to the system's fault current level is the lowest [33]. The integration of DER cause the increase in equivalent impedance of the network, which result decrease in the fault current level [36][37][38][39][40][41].…”

Section: Fault Current Contributionmentioning

confidence: 99%

A review of adaptive overcurrent protection in distribution networks with integration of distributed energy resources

Yusof

Kadir

2020

IJEECS

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This paper presents a review of an adaptive overcurrent protection scheme in a distribution network with the integration of distributed energy resources. The rapid integration of distributed energy resources brings challenges to the existing overcurrent protection system. The impacts are change in fault current magnitude and direction of current flow from radial to the multi-source dynamic network, which causes changes in network topology, inaccurate fault detection, and loss of coordination among protection systems. In this paper, the solution identified for reliable operation of overcurrent protection in the distribution network are network topology estimation, fault detection, and adaptive coordination.

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Section: Fault Current Contributionmentioning

confidence: 99%

A review of adaptive overcurrent protection in distribution networks with integration of distributed energy resources

Yusof

Kadir

2020

IJEECS

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“…The matrix Q k including them all can be obtained by the Floyd-Warshall algorithm on the basis of Equations (10)- (18). (7) The secondary substations can be divided into the suitable regions according to the primary substations chosen in Step (3), the Q k calculated in Step (6), and the planned number of secondary substations. The preliminary partition results are shown in Table 1.…”

Section: Partition Processmentioning

confidence: 99%

“…Traditional backup protection makes trip decisions through local information; this has some disadvantages such as difficulty in setting coordination and poor adaptability [1][2][3]. With the development of communication technology, regional protection which gathers multisource information for decision-making has been widely studied for addressing the shortcomings of traditional backup protection [4][5][6]. In order to achieve regional protection, a large power grid is divided into several regions, regional decision-making centers are set up, and multisource information in the region is collected by means of communication technology.…”

Section: Introductionmentioning

confidence: 99%

A Regional Protection Partition Strategy Considering Communication Constraints and Its Implementation Techniques

et al. 2018

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Regional protection based on multisource information of a regional power network depends on communication technology. A partition strategy considering communication constraints and implementation techniques must be considered to realize the regional protection of a large power grid. This paper aims at examining the technical requirements of rapid and reliable regional protection, considering the number of hops as the factor affecting communication between secondary substations and primary substations, and combining this with the equalization of substations. Then, a primary substation selection model of regional protection based on an exhaustive method is proposed using the Floyd-Warshall algorithm (an algorithm for finding shortest paths in a weighted graph). The partition model is further established according to the multifactors that affect the communication delay time for regional protection. Focusing on the N-1 channel fault in the preset region after the formation of the subregions, this paper analyzes the circuitous process of information in an interrupt channel and considers the influence of communication delay time to further improve the partition strategy. Finally, this paper puts forward techniques for partition strategy implementation based on graph theory; an example analysis of an actual power network is also given, and the conclusions of multiple partitions of the same power network are compared and analyzed. Besides this, partition suggestions and theoretical guidance considering actual engineering demands are given.Energies 2018, 11, 2502 2 of 15 directly determines the quickness and accuracy of transmitting multisource information to regional decision-making centers. Therefore, a reasonable partition strategy for the large power grid has vital significance for achieving reliable regional protection.At present, many scholars have put forward regional protection partition ideas and implementation techniques. In reference [12], an initial primary substation was selected to divide a finite element region with a specified radius. Other primary substations were determined outside the finite element region according to the principle of primary substation selection. In reference [13], the primary substation was selected according to the qualitative principle, and a round grid search was carried out with three logical lengths as the radius. In reference [14], a regional autonomous backup protection partition scheme was proposed. The partition scheme was formulated according to the principle of a certain primary substation radius, and the partition algorithm was executed several times. The final result was determined as the scheme with fewest primary substations. In reference [15], the scholar comprehensively considered real-time, economic, and equilibrium factors to establish reference indicators, and used a genetic algorithm to perform a two-layer search to achieve partitioning. In reference [16], the scholar designated a primary substation according to geographical factors, and divided the distance from...

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“…The general scheme of multi-agent protection coordination is shown in Figure 4 [121]. An efficient protection coordination scheme using multi-agents for distribution networks with DGs connected is proposed in [122][123][124]. A multi-agent based protection coordination scheme proposed in [125] coordinates the overcurrent relays via communication link to enhance the efficiency of protection coordination and to decrease the operating time of relays.…”

Section: Curve Fitting Approachmentioning

confidence: 99%

Protection Coordination of Properly Sized and Placed Distributed Generations–Methods, Applications and Future Scope

Katyara¹,

Staszewski²,

Leonowicz³

2018

Preprint

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The radial distribution networks are designed for unidirectional power flows and are passive in nature. However, with the penetration of Distributed Generation (DG), the power flow becomes bidirectional and the network becomes active. The integration of DGs into distribution network creates many issues with: system stability, protection coordination, power quality, islanding, proper placement and sizing etc. Among these issues, the two most significant are optimal sizing and placement of DGs and their protection coordination in utility network. The proper coordination of relays with high penetration of DGs placed at optimal location increases the availability and reliability of the network during abnormal operating conditions.This research addresses most of the available methods for efficient sizing and placement of DGs in distribution system (numerical, analytical and heuristic) as well as the developed protection coordination techniques for utility networks in the presence of DGs (Artificial Intelligence (AI), adaptive and non-adaptive, multi-agent, hybrid). This paper indicates the possible research gaps and highlights the applications possibilities and methods’ limitations in the area of DGs.

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Communication-based Adaptive Protection for Distribution Systems Penetrated with Distributed Generators

Cited by 19 publications

References 6 publications

A review of adaptive overcurrent protection in distribution networks with integration of distributed energy resources

A review of adaptive overcurrent protection in distribution networks with integration of distributed energy resources

A Regional Protection Partition Strategy Considering Communication Constraints and Its Implementation Techniques

Protection Coordination of Properly Sized and Placed Distributed Generations–Methods, Applications and Future Scope

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