Ensuring efficiency and reliability of grid-connected eLNG plants

A. Talakar, Siemens Energy
L. Bergmann, Siemens Energy

Electric motor-driven main refrigeration trains [i.e., electric LNG (eLNG)] continue to emerge as a powerful decarbonization pathway for LNG project stakeholders. However, the development of eLNG facilities often presents unique technical challenges not encountered with traditional gas turbine-driven designs. This is particularly the case for plants that use (or have plans to use) the external grid as their main source of power. Even with highly stable grids, steps must be taken to avoid voltage dips that can impact the operation of the facility, while maintaining a stable frequency under all scenarios. Complexity is often amplified due to the presence of significant harmonic sources in the

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