Earthing System Analysis to Improve Protection System Performance in Distribution Networks

Mariappan, V.; Rayees, A.B.S. Mohamed; AlDahmi, Maha

doi:10.1049/cp.2014.0092

Cited by 4 publications

(1 citation statement)

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“…Overvoltage generated by single-line-to-ground (SLG) faults by using Petersen coil for MV systems is given in [29]. In [30], the authors analyzed the effect of neutral grounding techniques on the features of fault in Al Ain DS in UAE. In [31], a few experimental fault cases were examined under various conditions on a DS in Czech Republic with Petersen coil grounding.…”

Section: Introductionmentioning

confidence: 99%

Effect of Neutral Grounding Protection Methods for Compensated Wind/PV Grid-Connected Hybrid Power Systems

Çetinkaya

Umer

2017

International Journal of Photoenergy

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The effects of the wind/PV grid-connected system (GCS) can be categorized as technical, environmental, and economic impacts. It has a vital impact for improving the voltage in the power systems; however, it has some negative effects such as interfacing and fault clearing. This paper discusses different grounding methods for fault protection of High-voltage (HV) power systems. Influences of these grounding methods for various fault characteristics on wind/PV GCSs are discussed. Simulation models are implemented in the Alternative Transient Program (ATP) version of the Electromagnetic Transient Program (EMTP). The models allow for different fault factors and grounding methods. Results are obtained to evaluate the impact of each grounding method on the 3-phase short-circuit fault (SCF), double-line-to-ground (DLG) fault, and single-line-to-ground (SLG) fault features. Solid, resistance, and Petersen coil grounding are compared for different faults on wind/PV GCSs. Transient overcurrent and overvoltage waveforms are used to describe the fault case. This paper is intended as a guide to engineers in selecting adequate grounding and ground fault protection schemes for HV, for evaluating existing wind/PV GCSs to minimize the damage of the system components from faults. This research presents the contribution of wind/PV generators and their comparison with the conventional system alone.

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Section: Introductionmentioning

confidence: 99%