Background to Sintef project Network models for EMS 1 Applications - - PowerPoint PPT Presentation

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Background to Sintef project ”Network models for EMS”

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Applications

• Network model (State estimator)
• Today: 220-400 kV in Sweden. Some of 400 kV in Finland and
• Sealand. 70-130 kV in North and South of Sweden
• Future: 220-400 kV i Nordel system and 70-130 kV in Sweden
• PNA (Power network application)
• PNA forecast, Optimal Power Flow, Contingency analysis
• Uses State estimator.
• Spica (Voltage collapse program)
• Uses state estimator
• reduced equivalents from PSS/E
• Aristo (training simulator)
• rough equivalents of neighbouring countries

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Project

• Dynamic models:
• Make a equivalent model of neighbouring countries
• Use in PNA and Aristo (training simulation)
• Start/stop of generators
• To distribute the production plan in an specific area
• Use in PNA Forecast for a online analyses
• Use in Spica/Aristo for offline simulations

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Main reasons

• Not feasible to have full observable of the entire

system

• Reduced number of nods – lesser maintenance - faster

calculations

• Tools to make the analysis easier
• Make a more realistic production balance for the

Forecast program