The grounding of marine power systems: problems and solutions

Nelson, John P.; Burns, D.O.; Seitz, R. N.; Leoni, A.

doi:10.1109/pcicon.2004.1352792

Cited by 12 publications

(10 citation statements)

References 1 publication

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“…The grounding method influence the electrical faults in a power system. The vector group of the power transformers influence propagation of the fault [12], overall reliability of the power system [13] and the harmonics level. As result, there is a strong relation between the power system protection and the grounding method of an electric network.…”

Section: A Power System Groundingmentioning

confidence: 99%

“…Although the ungrounded power systems are not connected intentionally to the ground, a capacitive coupling between the phase conductors and ground exists [7] [17]. The ungrounded power system allows continuity of supply to the healthy phases with the single-phase fault [18] and is relatively safe for the personnel with a ground fault [13], as the fault current is typically low (around 1 A). However, this method of grounding is characterized by high overvoltage transients and the exact fault location is not possible [13].…”

Section: A Power System Groundingmentioning

confidence: 99%

“…The high resistance grounding allows continuity of supply to the healthy phases with a single-phase fault, it is a relatively safe method of grounding for the personnel during a ground fault and permits fault location [13]. Grounding through a low resistance permits fault location, but is not allowing continuous operation of the healthy phases with the single-phase fault [13].…”

Section: A Power System Groundingmentioning

confidence: 99%

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Review of network topologies and protection principles in marine and offshore applications

Ciontea

Bak

Blaabjerg

et al. 2015

2015 Australasian Universities Power Engineering Conference (AUPEC)

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An electric fault that is not cleared is harmful in land applications, but in marine and offshore sector it can have catastrophic consequences. If the protection system fails to operate properly, the following situation may occur: blackouts, fire, loss of propulsion, delays in transportation, collision with the cliff, reef or other ships and electrical shocks to humans. In order to cope with the unwanted effects of a fault, several protection strategies are applied, but complexity of the marine and offshore applications is continuously increasing, so protection needs to overcome more and more challenges. As result, development of new protection techniques that can offer improved functionalities compared to the actual solutions for marine and offshore applications is needed. This paper reviews the network topologies in such applications and presents the requirements of a system able to protect them. Also, a brief overview of the protection principles for a generic power system is presented.

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Section: A Power System Groundingmentioning

confidence: 99%

Section: A Power System Groundingmentioning

confidence: 99%

Section: A Power System Groundingmentioning

confidence: 99%

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Review of network topologies and protection principles in marine and offshore applications

Ciontea

Bak

Blaabjerg

et al. 2015

2015 Australasian Universities Power Engineering Conference (AUPEC)

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“…Nevertheless, HV systems inevitably lead to the increased risk of transient overvoltage due to a phase-to-earth arc flash. Therefore, instead of ungrounded systems, ships with HV distribution systems use high resistance grounding [43].…”

Section: Introductionmentioning

confidence: 99%

AC Ship Microgrids: Control and Power Management Optimization

et al. 2018

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At sea, the electrical power system of a ship can be considered as an islanded microgrid. When connected to shore power at berth, the same power system acts as a grid connected microgrid or an extension of the grid. Therefore, ship microgrids show some resemblance to terrestrial microgrids. Nevertheless, due to the presence of large dynamic loads, such as electric propulsion loads, keeping the voltage and frequency within a permissible range and ensuring the continuity of supply are more challenging in ship microgrids. Moreover, with the growing demand for emission reductions and fuel efficiency improvements, alternative energy sources and energy storage technologies are becoming popular in ship microgrids. In this context, the integration of multiple energy sources and storage systems in ship microgrids requires an efficient power management system (PMS). These challenging environments and trends demand advanced control and power management solutions that are customized for ship microgrids. This paper presents a review on recent developments of control technologies and power management strategies proposed for AC ship microgrids.

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“…With these grounding arrangements, phase‐to‐ground (PG) faults do not produce significant fault currents. Consequently, the electric network of a vessel allows continuity of supply in the event of a single PG fault, which is the most common electric fault that occurs in maritime applications [10].…”

Section: Introductionmentioning

confidence: 99%

Improved protection system for phase faults on marine vessels based on ratio between negative sequence and positive sequence of the fault current

Ciontea

Hong

Booth

et al. 2018

IET Electrical Systems in Transportation

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The grounding of marine power systems: problems and solutions

Cited by 12 publications

References 1 publication

Review of network topologies and protection principles in marine and offshore applications

Review of network topologies and protection principles in marine and offshore applications

AC Ship Microgrids: Control and Power Management Optimization

Improved protection system for phase faults on marine vessels based on ratio between negative sequence and positive sequence of the fault current

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