Transcript Protection in IPSA+ version 1.5

The Network Modelling Tool
The Network Modelling Tool
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The big picture
What is the NMT
How does it work
New features and developments
The Network Model
The Big Picture
• The SIM provides a mechanism for automating
the network analysis
• The NMT is the part which does this analysis
• The NMT has several parts
– Ipsa Power System analysis software
– Additional modules which interface with the SIM
– Models to allow reinforcement techniques to be
included
The Big Picture
SIM
NMT Modules
IPSA
NMT Modules
• Provide the interface between the SIM and IPSA
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Load the Network Model
Run load flow studies
Report all voltage and thermal constraints
Add reinforcement techniques
• Based on Python scripts
• Can run multiple copies of Ipsa simultaneously
• Not ‘visible’ to end users
NMT Modules
• Load the Network Model
– Loads and checks the Authorised Network Model
– Loads Manual patches – planned reinforcements created during
planning
– Loads Technique patches – automatic reinforcements created
during analysis
• Run Load Flow Studies
– Intact and N-1 studies across the selected Primaries
– Includes load profiles for 18 day types with 48 ½ hour data points
per day
– Run across multiple processors for speed
NMT Modules
• Report Constraints
– Voltage violations reported when any busbar is outside limits
under intact or N-1 conditions
– Thermal violations reported for overloaded circuits or
transformers under intact and N-1 conditions
– Includes the application of dynamic asset ratings where required
• Add Reinforcements
– Whenever a constraint is identified
– Reinforcements created as patch files
– Modelled using plugins or new components
NMT Module Progress
• Detailed design work is nearing completion
– Core analysis design is largely complete
– Interfaces with the SIM to be defined
• Coding of the modules about to start
– Core analysis modules can be started
– Ipsa developments required for this have been completed
The Big Picture
NMT Modules
IPSA
IPSA Software
• Provides the core analysis tool inside the NMT
• Also provides the Results viewer and Network
Editor
– These are essentially the standard IPSA software product
– Extra developments are being added to support FALCON
– These will be available in future versions both in the NMT and
standard IPSA
IPSA Developments
• Several areas of development required to the
standard IPSA product to support the FALCON
requirements
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Load profiles
Reliability analysis (CIs and CMLs)
Patch file mechanisms
Display enhancements
Load Profiles
• New IPSA feature
• Any number of profiles can be created and
applied to loads
• Absolute load values can be specified
• Scaling profiles allow scaling of existing loads
Load Profiles
Copy and paste
data directly from
Excel
Load Profiles
Reliability Analysis
• Calculates CIs and CMLs across the network
• Based on the DisOPT tool developed by
University of Strathclyde
• Integration into Ipsa is largely complete
– Dialogs and data tables complete
– Analysis has been integrated but not enabled
• Data will be populated using generic values
initially
Patch Files
• Patch files represent differences between two
networks
• Created by users modelled proposed
developments
• Created by the NMT when applying
reinforcement techniques
• Based on the Version Control feature of IPSA
Display Enhancements
• Colour components based on:
– Individual feeders
– Primary
– BSP
• Identify network developments
– Uses patch files and diagram colouring to highlight network
changes
The Network Model
• Authorised Network Model (ANM) is the ‘official’
power system model in IPSA format
• A script is being developed to convert Access
database to IPSA
• The ANM is then used for all SIM analysis
• ANM would be updated after significant network
changes