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International Journal of Photoenergy
Volume 2017 (2017), Article ID 4860432, 9 pages
https://doi.org/10.1155/2017/4860432
Research Article

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

1Nurettin ÇETINKAYA, Electrical-Electronics Engineering Department, Selçuk University, Konya, Turkey
2Farhana UMER, Electrical Engineering Department, The Islamia University of Bahawalpur Pakistan, Bahawalpur, Pakistan

Correspondence should be addressed to Nurettin Çetinkaya

Received 3 June 2017; Revised 5 September 2017; Accepted 9 October 2017; Published 19 November 2017

Academic Editor: Leonardo Sandrolini

Copyright © 2017 Nurettin Çetinkaya and Farhana Umer. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

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.