MV network earth fault parameters measurement as factor supporting quality of network operation in case of renewable sources presence

Lorenc, Józef; Andruszkiewicz, Jerzy; Handke, Jacek; Staszak, Bogdan

doi:10.1088/1755-1315/214/1/012061

Cited by 1 publication

(1 citation statement)

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“…The rapid development of renewable energy systems in Europe and the world creates new directions for their application. One of these areas in recent years has been the use of a distributed generation system to provide power to non-traction consumers of railway transport [1][2][3][4]. Such systems are called local systems and in their specificity of work, structure and execution: they significantly differ from general-purpose systems [5][6][7][8][9].…”

Section: Relevancementioning

confidence: 99%

Analysis of the neutral grounding modes influence on the reliability characteristics of local systems with renewable energy sources

Ostapchuk¹,

Kruczek²,

Kuznetsov³

et al. 2021

Diagnostyka

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When comparing the performance indicators of electrical networks with different types of neutral grounding, along with the fulfilment of the requirement to ensure reliability of power supply to consumers, serious attention is drawn to the main network parameters influencing the performance of power supply systems. Analysis of research and its results, reported above, on the influence of the neutral ground of power networks on the reliability and electrical safety conditions of the power supply systems as a whole, on the damage of distribution networks and electrical equipment as well as on the working capacity of relay protection devices, provides an opportunity to estimate each specific operation mode of the neutral and to develop recommendations aimed at strengthening the positive indicators of the corresponding modes. Other things being equal, reliability of power supply to electrical receivers or reliability of distribution networks is mainly determined by the damage to network elements and the performance of relay protection devices. The degree of influence of these factors on the reliability of distribution networks depends on the neutral mode, which in turn determines the level of internal overvoltages and the nature of transient processes at earth fault.

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