Fault analysis of solar photovoltaic penetrated distribution systems including overcurrent relays in presence of fluctuations

Tekpeti, Browh Serge; Kang, Xiaoning; Huang, Xinghua

doi:10.1016/j.ijepes.2018.03.003

Cited by 15 publications

(5 citation statements)

References 34 publications

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“…Studies have shown that the recalculation of OC relay settings based on the maximum generation of integrated PV sources solves the misoperation of OC relays [55, 60, 61]. However, this solution degrades the sensitivity of the entire protection system, especially when PV sources do not contribute to power generation [55].…”

Section: Improvement Of Protection Systems In Distribution Network Wmentioning

confidence: 99%

Impact of distributed generation on the protection systems of distribution networks: analysis and remedies – review paper

Meskin

Domijan

Grinberg

2020

IET Generation, Transmission & Distribution

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Section: Improvement Of Protection Systems In Distribution Network Wmentioning

confidence: 99%

Impact of distributed generation on the protection systems of distribution networks: analysis and remedies – review paper

Meskin

Domijan

Grinberg

2020

IET Generation, Transmission & Distribution

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“…Finally, it should be noted that the negative values of the bus 1 injected power means that power is being supplied to the MV distribution network, due to the fact that production is higher than consumption. Although this implies more available power, those networks were not designed to have reverse power flows, what could cause problems in the protection systems, which must be evaluated [36,37].…”

Section: Comparative Analysismentioning

confidence: 99%

Photovoltaic Power Converter Management in Unbalanced Low Voltage Networks with Ancillary Services Support

et al. 2019

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The proliferation of residential photovoltaic (PV) prosumers leads to detrimental impacts on the low-voltage (LV) distribution network operation such as reverse power flow, voltage fluctuations and voltage imbalances. This is due to the fact that the strategies for the PV inverters are usually designed to obtain the maximum energy from the panels. The most recent approach to these issues involves new inverter-based solutions. This paper proposes a novel comprehensive control strategy for the power electronic converters associated with PV installations to improve the operational performance of a four-wire LV distribution network. The objectives are to try to balance the currents demanded by consumers and to compensate the reactive power demanded by them at the expense of the remaining converters’ capacity. The strategy is implemented in each consumer installation, constituting a decentralized or distributed control and allowing its practical implementation based on local measurements. The algorithms were tested, in a yearly simulation horizon, on a typical Portuguese LV network to verify the impact of the high integration of the renewable energy sources in the network and the effectiveness and applicability of the proposed approach.

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“…These fault currents are higher in locations closer to PV generations [3]. An increase in PV penetration leads to an increase in fault currents which also leads to an increase in protective relays fault currents, and these relays fault currents depend on the locations of the PV systems [4]. A sensitivity analysis on the impact of rooftop PV systems on the distribution network showed that the presence of PV systems on a low voltage feeder increased short circuit fault levels by 10% [5].…”

Section: Introductionmentioning

confidence: 99%

A modified bridge-type nonsuperconducting fault current limiter for distribution network application

Fokui

Saulo

Ngoo

2021

IJPEDS

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The electrical distribution network is undergoing tremendous modifications with the introduction of distributed generation technologies which have led to an increase in fault current levels in the distribution network. Fault current limiters have been developed as a promising technology to limit fault current levels in power systems. Though, quite a number of fault current limiters have been developed; the most common are the superconducting fault current limiters, solid-state fault current limiters, and saturated core fault current limiters. These fault current limiters present potential fault current limiting solutions in power systems. Nevertheless, they encounter various challenges hindering their deployment and commercialization. This research aimed at designing a bridge-type nonsuperconducting fault current limiter with a novel topology for distribution network applications. The proposed bridge-type nonsuperconducting fault current limiter was designed and simulated using PSCAD/EMTDC. Simulation results showed the effectiveness of the proposed design in fault current limiting, voltage sag compensation during fault conditions, and its ability not to affect the load voltage and current during normal conditions as well as in suppressing the source powers during fault conditions. Simulation results also showed very minimal power loss by the fault current limiter during normal conditions.

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Fault analysis of solar photovoltaic penetrated distribution systems including overcurrent relays in presence of fluctuations

Cited by 15 publications

References 34 publications

Impact of distributed generation on the protection systems of distribution networks: analysis and remedies – review paper

Impact of distributed generation on the protection systems of distribution networks: analysis and remedies – review paper

Photovoltaic Power Converter Management in Unbalanced Low Voltage Networks with Ancillary Services Support

A modified bridge-type nonsuperconducting fault current limiter for distribution network application

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