TN-Grounding Systems for the Emerging Cold Ironing: Multiple Grounded System vs Island System

The commercial routes interconnection in maritime world transport requires common criteria for the standardization of shore connection's rules in port areas. A brief focus on the part 1: High Voltage Shore Connection (HVSC) Systems (IEC-ISO-IEEE 80005–1) has been presented that is an example of global harmonization. This paper reports the cold ironing system issues due to the grounding systems. Several aspects must be taken into account as transferred touch potentials according to the workers safety for interferences due to the ground loops. The same standard 80005–1 highlights the problem about the ship's integrity related to galvanic corrosion. The goal of this paper is to show the current TN-system multiple grounding solutions adopted and to discuss the introduction of a TN-island system for HVSC, showing the decrease of the risks for corrosion of the ships and the transfer of touch potentials.

[1]  L. Martirano,et al.  Wise port & business energy management: Portfacilities, electrical power distribution , 2014, 2014 IEEE Industry Application Society Annual Meeting.

[2]  Luigi Martirano,et al.  Wise Port and Business Energy Management: Port Facilities, Electrical Power Distribution , 2016, IEEE Transactions on Industry Applications.

[3]  G. Parise.  A New Summary on the IEC Protection Against Electric Shock , 2013, IEEE Transactions on Industry Applications.

[4]  L. Parise,et al.  Grounding System in Marinas: The Microsystem Approach , 2011, IEEE Transactions on Industry Applications.

[5]  A. Greig,et al.  Green shipping in emission controlled areas: Combining smart grids and cold ironing , 2014, 2014 International Conference on Electrical Machines (ICEM).

[6]  A. Ruvio,et al.  Naval smart grid: Integrated Power System for all electric naval vessels with control and reliability characteristics , 2014, 2014 AEIT Annual Conference - From Research to Industry: The Need for a More Effective Technology Transfer (AEIT).

[7]  A. Ruvio,et al.  Electric loads characterization in an aircraft carrier with ring-bus distribution system , 2015, 2015 International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles (ESARS).

[8]  Mariacristina Roscia,et al.  Sustainable port through sea wave energy converter , 2017, 2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA).

[9]  Giuseppe Parise,et al.  Voltage-Drop Calculations and Power Cable Designs for Harbor Electrical Distribution Systems With High Voltage Shore Connection , 2017, IEEE Transactions on Industry Applications.

[10]  Giuseppe Parise,et al.  High voltage shore connections (HVSC), an IEC/ISO/IEEE 80005-1 compliant solution: The neutral grounding system , 2016, 2016 IEEE Industry Applications Society Annual Meeting.

[11]  Giuseppe Parise,et al.  The TN-island system for cold ironing , 2015, 2015 IEEE Industry Applications Society Annual Meeting.

[12]  F. D. Kanellos,et al.  Ship to shore connection — Reliability analysis of ship power system , 2016, 2016 XXII International Conference on Electrical Machines (ICEM).