EHAZOP offshore wind power transmission platform

MAR Consulting performed an Electrical Hazard and Operability (EHAZOP) analysis of an offshore wind power transmission platform. The platform receives AC power generated by wind turbines and distributes it to shore via a High Voltage DC link.

Objectives of the EHAZOP

The main objectives were to:

  • Evaluate the electric design with regards to safety and operability to avoid accidents and incidents;
  • Ensure that design is fit for purpose and provides sufficient reliability, availability, and maintainability;
  • Identify areas of improvement.

Scope of the EHAZOP for offshore wind power platform

The E-HAZOP covered the high-power transmission systems: Gas Insulated Switchgears (GIS), transformer, converter valves, DC bus, and DC cable to shore termination; and the auxiliary power distribution within the platform, including power distribution to essential systems. Normal operation and other relevant modes of operation were part of the scope of work, with exception of installation, commissioning, and first energization.

Methodology for the EHAZOP for wind power transmission platforms

The methodology used was based on the HAZOP methodology as per IEC 61882, adapted to electrical systems. Hence, MAR Consulting divided the electrical systems into nodes and guided the assessment using applicable guidewords and parameters. Note that the EHAZOP is not a detailed design review, nor an assessment of compliance with relevant applicable standards, but a method to identify hazard and operability issues in a structured manner.

EHAZOP analysis experience

These types of assessments require expert knowledge both on electrical systems but also on safety and reliability engineering. At MAR Consulting we have more than 15 years of experience working with electrical, electronic, and safety engineering. We have performed multiple of such specialized assessment (other examples: EHAZOP of power plant concept · MAR Consulting, Electrical SAFOP (EHAZOP) of US eLNG plant · MAR Consulting). We have also provided related courses for engineering companies. Feel free to contact us should you require support in performing such a study.

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