Wind Farm Earthing System Design Using Clustering Technique

Abstract—A wind farm consists of large number of turbines, the earth grids of which are connected together. Under fault condition at one turbine, only limited numbers of turbines are impacted. This article analyzes the fault current distributions between wind turbine earth grids under fault conditions. Furthermore, it introduces the clustering technique, which limits the simulation requirements for the wind farm, thus reducing the cost and time of the design process. A case study is also included to validate the analyses.

[1]  Maria Vintan,et al.  Ground Fault Current Distribution on Overhead Transmission Lines , 2006 .

[2]  Nikos D. Hatziargyriou,et al.  Analysis of wind turbine grounding systems , 2000, 2000 10th Mediterranean Electrotechnical Conference. Information Technology and Electrotechnology for the Mediterranean Countries. Proceedings. MeleCon 2000 (Cat. No.00CH37099).

[3]  Mohamad Nassereddine,et al.  Soil Resistivity Data Computations; Single and Two - Layer Soil Resistivity Structure and Its Implication on Earthing Design , 2013 .

[4]  N. Jenkins,et al.  Wind farm earthing , 1997 .

[5]  Mohamad Nassereddine,et al.  Safety Compliance of Substation Earthing Design , 2011 .

[6]  Mohamad Nassereddine,et al.  Relation between transmission lines coupling factor and over head earth wire length: its impacts on fault current distributions , 2014 .

[7]  F.P. Dawalibi,et al.  Wind Turbine Farm Network Grounding Design Using Integrated Simulation Methods and Techniques , 2010, 2010 International Conference on Future Power and Energy Engineering.

[8]  D. Mukhedkar,et al.  Ground Fault Current Distribution in Sub-Station, Tower and Ground Wire , 1979, IEEE Transactions on Power Apparatus and Systems.

[9]  F. Dawalibi,et al.  Measurements and Computations of Fault Current Distribution on Overhead Transmission Lines , 1984, IEEE Transactions on Power Apparatus and Systems.

[10]  S.W. Saylors.  Wind farm collector system grounding , 2008, 2008 IEEE/PES Transmission and Distribution Conference and Exposition.

[11]  A. A. Shayegani Akmal,et al.  Wind farm grounding systems design regarding the maximum permissible touch & step voltage , 2012, 2012 11th International Conference on Environment and Electrical Engineering.

[12]  Mohamad Nassereddine,et al.  Estimation of apparent soil resistivity for two-layer soil structure , 2013 .

[13]  A. Hellany,et al.  How to design an effective earthing system to ensure the safety of the people , 2009, 2009 International Conference on Advances in Computational Tools for Engineering Applications.

[14]  Aboelsood Zidan,et al.  Surface Potential and Resistance of Grounding Grid Systems in Homogeneous Soil , 2007 .

[15]  Robert Hoerauf,et al.  Considerations in Wind Farm Grounding Designs , 2013, IEEE Transactions on Industry Applications.

[16]  Mohamad Nassereddine,et al.  Earth Potential Rise (EPR) Computation for a Fault on Transmission Mains Pole , 2012 .