Fault detection and location algorithm for DG‐integrated distribution systems

Manditereza, Patrick T.; Bansal, Ramesh C.

doi:10.1049/joe.2018.0247

Cited by 8 publications

(6 citation statements)

References 38 publications

(37 reference statements)

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“…This approach formulates the reactive power compensation to restore the voltages and eliminate voltage deviation without any central controller intervention. The author in [119] proposed an algorithm to achieve its protection based on node voltage measurements when a fault occurs within a zone. The algorithm is based on modelling an approach that divides the DN into several overlapping protective areas.…”

Section: ) Voltage Based Protection Schemementioning

confidence: 99%

A Comprehensive Review on Protection Strategies to Mitigate the Impact of Renewable Energy Sources on Interconnected Distribution Networks

et al. 2021

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Technology advancement in the last few decades allows large penetration of renewable energy resources in the distribution network (DN). The integration of such resources has shown a substantial impact on DN through power loss reduction and improved network reliability. Besides this, the existing protection system has encountered coordination challenges due to the bidirectional power flow, different types and capacity of generation sources, and changes in fault levels due to network operating modes (grid-connected or islanded). Such conditions may cause the relays to malfunction and imperil the effectiveness of the existing protection scheme. Therefore, an efficient and robust protection coordination scheme is imperative to avoid network reliability and stability issues to the grid. This review paper presents a comparative analysis of various protection techniques implemented to alleviate the impact of integrated resources into DN. Moreover, a comparison of classical and modified protection approaches in terms of advantages, shortcomings, and implementation costs is presented. The prime objective of this study is to highlight the prominence of utilizing user-defined programmable relays for modern DNs. Moreover, recommendations are presented by considering the application of user-defined relay characteristics that can be proved as a robust protection scheme to cope with the protection challenges in existing and future power systems developments.INDEX TERMS Distribution networks (DN), microgrids (MG), protection coordination scheme, renewable energy resources (RES), user-defined characteristics (UDC).

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Section: ) Voltage Based Protection Schemementioning

confidence: 99%

A Comprehensive Review on Protection Strategies to Mitigate the Impact of Renewable Energy Sources on Interconnected Distribution Networks

et al. 2021

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“…The authors in [101] proposed an algorithm that achieves its protection function through load flow and sensitivity calculations based on voltage measurements. The algorithm is built on a modelling approach that splits the distribution network into a series of non‐conventional overlapping protection zones [102].…”

Section: Voltage‐based Protection Strategiesmentioning

confidence: 99%

“…However, the body of knowledge and research efforts in the use of time‐domain voltage measurements for protection seems limited at present, and this area offers scope for further research [101].…”

Section: Voltage‐based Protection Strategiesmentioning

confidence: 99%

Review of technical issues influencing the decoupling of DG converter design from the distribution system protection strategy

Manditereza

Bansal

2018

IET Renewable Power Generation

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Several issues need to be considered in the design and control of converters for converter-interfaced distributed generators (DGs). Under fault conditions, the semiconductor devices withstand ratings must not be exceeded. The converter control strategy is also required to facilitate fault ride through (FRT) capability. On the other hand, protection against fault is better served by employing control strategies that allow the converter-interfaced DGs to contribute short duration fault current sufficient to aid the detection of faults. Semiconductor devices protection and FRT capability have the same objective of limiting the magnitude of the fault current. Protection coordination in the complex DG-integrated network is difficult and may result in protection settings that are not optimal or contribute to long relay operating times that may impact FRT support. On this basis, this study proposes the de-coupling of the protection solution from FRT and semiconductor device considerations. This study critically reviews various strategies proposed in the literature for the protection of the DG-integrated distribution system and develops an argument that aims to influence a paradigm shift towards voltage-based protection that may see protection design decoupled from inverter design and control, since fault current contribution may not be required to achieve effective protection.

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“…The first strategies try to address the protection issues arising from the presence of DGs by changing DG planning and operation schemes. Optimal placement of DGs considering limitations of protection systems, 6 controlling DG outputs based on the fault current level of the system 7 and disconnecting the DGs in the fault condition are some examples for the first strategies 8 . On the other hand, the second strategies focus on improving the protection systems to cope with the protection problems related to DG integration in the micro‐grids.…”

Section: Introductionmentioning

confidence: 99%

“…According to Table 1, both DG‐based and the protection system (PS)‐based strategies can be implemented in an offline 15,22‐24 or online 8,25‐30 manner. In the offline methods, the coordination of protection devices is ensured in sizing and siting of DGs in the planning stage 6,31‐33 or output of DGs in operation stage 8,34‐36 . However, these methods may limit the penetration of DGs which in turn result in dissatisfaction of consumers and DG owners.…”

Section: Introductionmentioning

confidence: 99%

A novel adaptive protection coordination scheme for radial distribution networks in the presence of distributed generation

Bisheh

Fani

Shahgholian

2021

Int Trans Electr Energ Syst

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Summary Developing micro‐grids and increasing penetration of distributed generation (DG) bring significant techno‐economic benefits to power systems. However, the presence of DG can affect the performance of the protection system. In particular, the coordination of over‐current protection relays in the presence of DGs is a challenging task. In this article, an adaptive algorithm is proposed for protection coordination of over‐current relays. Once the coordination of relays is disturbed due to the presence of DG, the characteristic curve of the backup relay is adaptively modified based on the characteristic curve of the main relay in such a way that the coordination time interval (CTI) be in the acceptable range and therefore the coordination of relays is maintained. The proposed algorithm can maintain the coordination of over‐current relays locally only by controlling current parameter of backup relay and without imposing any restriction on the output power of DGs. Therefore, the proposed protection coordination scheme allows system operators and DG owners to exploit DG benefits without concerning about protection aspects related to the presence of DGs. The efficiency and applicability of the proposed method are validated using simulations on a typical industrial 20 kV radial distribution system. The simulation results show that the proposed algorithm can maintain the CTI of the main and backup relays in an acceptable range for various penetration levels of DGs.

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Fault detection and location algorithm for DG‐integrated distribution systems

Cited by 8 publications

References 38 publications

A Comprehensive Review on Protection Strategies to Mitigate the Impact of Renewable Energy Sources on Interconnected Distribution Networks

A Comprehensive Review on Protection Strategies to Mitigate the Impact of Renewable Energy Sources on Interconnected Distribution Networks

Review of technical issues influencing the decoupling of DG converter design from the distribution system protection strategy

A novel adaptive protection coordination scheme for radial distribution networks in the presence of distributed generation

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