KMB Power Systems project: Objectives and preliminary results

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KMB Power Systems project Objectives and
preliminary results
Petromaks KMBElectric power systems for subsea
processing and transportation of oil and gas

• Presentation March 2009

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KMB Power Systems

• Principal objective
• Establish a national competence centre on design,
  analysis, verification and safe operation of
  electric power supply systems for subsea control,
  processing and transportation systems for oil and
  gas exploration
• ? Generic project, placing emphasis on basic
  competence and methodology applicable for
  simulation and analysis of subsea electric power
  systems

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KMB Power Systems Project contents

• Fundamental issues
• System operation
• Component stress
• Component interaction

Vision To model and simulate the complete subsea
electric power system from topside to seabed
installations during normal, overload and fault
conditions

• Applicability
• Design
• Analysis
• Verification
• Safe operation

• Pinpoint inadequate or missing
• Analysis tools and methodology
• Models
• ? Develop and/or improve

System
Components
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KMB Power Systems Some preliminary results

• Transformer
• Methodology for generating wide band model of
  transformer applicable for time domain
  simulations based on transformer measurements
• Evaluation of PSCAD transformer models
  applicability for phenomena analysis like
  inrush current

• Power umbilical
• - Thermal modelling of cable in air (riser)
  Accuracy assessment of numerical methods
  compared to measurements
• Accuracy assessment of electrical parameter
  calculations (R, X _at_ 50, 100 and 200Hz) by 2D
  FEM software compared to measurements
• Method (software) for generating wide band model
  for time domain simulation of power umbilical
  based on geometry and material parameters

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KMB Power Systems Some preliminary results

• Matrix Fitting Toolbox (software) developed
• Multi-port modeling from admittance (Y-) and
  scattering (S-) parameters
• Advanced methods Documented in 4 journal papers

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KMB Power Systems Other issues included

• Phenomenon studies
• Identify phenomena that can interfere with
  system operation. Mitigation strategies.
• Benchmark systems
• Define cases suitable for testing the
  applicability of topologies, components, control
  schemes etc
• Methodology and guidelines
• Incorporate and make use of relevant project
  results in guidelines for design and
  verification, including evaluation of methodology
  and relevant existing standards and guidelines
• New system concepts
• - Demonstrate new or improved solutions for
  subsea power supply

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KMB Power Systems Future activities (new
projects)

• Generic transformer simulation model
• Combining low frequency characteristics and
  wide-band modelling
• Refine methodology for model parameter
  extraction
• Refined power umbilical simulation model
• More accurate representation of electrical
  parameters as well as wide-band modelling
• Refine methodology for model parameter extraction

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