Influence of Distributed Generation on Distribution Networks During Faults

Kaddah, Sahar S.; El‐Saadawi, Magdi M.; El-Hassanin, Doaa

doi:10.1080/15325008.2015.1057782

Cited by 21 publications

(11 citation statements)

References 4 publications

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“…The distribution system is experiencing a change in nature with the increasing penetration of distributed generation (DG). Power flow and fault characteristics are among the factors that will be affected by the integration of these devices and the way they are affected depends on the characteristics of the DG [1]. DGs can be of different types, however, climate change, global warming and other environmental issues are driving the integration of renewable energy sources such as solar energy and wind energy to replace conventional generation systems [2].…”

Section: Introductionmentioning

confidence: 99%

A Fault Location Scheme for Active Untransposed Distribution Systems Using a Limited Number of Synchronized Measurements

Aboshady

Thomas

Sumner

2020

Electric Power Components and Systems

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This paper presents a fault location scheme for unbalanced and untransposed distribution systems which contain different types of distributed generation (DG). A general formula has been derived for any fault type using a limited number of synchronized measurement points. To avoid having to synchronize all of the measurement points, the voltage and current measured locally at the DGs are processed locally to calculate the equivalent impedance of the DG at the non-fundamental frequencies. This is then used in the fault location process. The IEEE 34-bus feeder is simulated using the distributed parameter model for the lines and is used to validate the proposed scheme. Uncertainties associated with fault type, fault location, fault resistance, inception angle, noise in measurements and load profile are considered in the evaluation. The simulation studies demonstrate that the scheme can have a high accuracy and is robust.

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Section: Introductionmentioning

confidence: 99%

A Fault Location Scheme for Active Untransposed Distribution Systems Using a Limited Number of Synchronized Measurements

Aboshady

Thomas

Sumner

2020

Electric Power Components and Systems

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“…The protection for ring bus is discussed, but the diagnosis and protection of load, distributed generation (DG), and service main are not covered in the previous protection scheme [13–15]. However, a significant influence has been noticed during a fault in DG, as discussed in [16]. The main objective of the study finds the DG system performance during a fault.…”

Section: Introductionmentioning

confidence: 99%

Smart protection system for identification and localisation of faults in multi‐terminal DC microgrid

Chauhan

2020

IET Smart Grid

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“…A number of studies have considered the impact of distributed generation (DG) on dynamic performance/fault performance [4][5][6][7][8][9]. However, they did not provide a clear differentiation between the types of generators and their different characteristics during a fault or a voltage sag.…”

Section: Introductionmentioning

confidence: 99%

Performance of UK Distribution Networks with single-phase PV systems under fault

Bhagavathy

Pearsall

Putrus

et al. 2019

International Journal of Electrical Power & Energy Systems

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Faults are a major concern to the dynamic performance of distribution networks. With the predicted increase in PV contribution, it is vital to understand the impact of PV on the distribution network. However, there is very little work published that address the impact of PV systems on the dynamic performance of distribution networks. Most PV systems connected at the distribution level are single-phase in nature. A generic single-phase dynamic PV model, including the protection mechanism is presented in this paper. This enables the evaluation of the dynamic performance of distribution networks with multiple single-phase PV systems. The paper analyses the impact of faults on the PV inverter output using the models developed. The impact of PV on the network performance during fault is then analysed. The implications of the adoption of different regulations, viz. G-83, IEEE 1547:2018, IEC 61727 and VDE 0126-1-1, are also discussed. The results show that the presence of PV systems does not significantly affect the performance of the distribution network during faults. Also, the usual concern of loss of protection coordination does not occur at this voltage level. Faults that are far from the PV terminals would be cleared within 0.2 s. This indicates that the disconnection delay of 0.5 s as stipulated by G-83 is appropriate. However, a lower cutoff voltage for under-voltage disconnection than the current value stipulated in G-83 would enable more PV systems to stay connected during fault and avoid unnecessary loss of generation. The network used in this work is a representative of distribution networks and protection schemes in the UK. The results of this analysis are therefore extendable to any radial distribution network that use standard protection, e.g. fuses and relays in low voltage distribution networks.

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Influence of Distributed Generation on Distribution Networks During Faults

Cited by 21 publications

References 4 publications

A Fault Location Scheme for Active Untransposed Distribution Systems Using a Limited Number of Synchronized Measurements

A Fault Location Scheme for Active Untransposed Distribution Systems Using a Limited Number of Synchronized Measurements

Smart protection system for identification and localisation of faults in multi‐terminal DC microgrid

Performance of UK Distribution Networks with single-phase PV systems under fault

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