example of simone network manager integration plinacro project description
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Example of SIMONE Network Manager Integration Plinacro project description. PLINACRO Project – Basic facts. Croatian national gas transport network Coveres northern part, from east to west, with tendency of expanding to whole teritory of Croatia Complex topology – loops, parallel lines

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plinacro project basic facts
PLINACRO Project – Basic facts

Croatian national gas transport network

  • Coveres northern part, from east to west, with tendency of expanding to whole teritory of Croatia
  • Complex topology – loops, parallel lines
  • Different pipeline characteristics (diameter, length, roughness, altitude profile, etc.)
  • Complex technology – different pressure levels (75, 50, 20, .. bar), regulation nodes, etc.
  • Large number of off-take stations – appr. 140 from very small to very large
  • Gas supplied from domestic gas production (20 in-take stations) and from import (1 border in-take station)
  • More than 150 distribution networks and direct industrial consumers connected to Plinacro gas network
  • Underground gas storage OKOLI used to compensate for seasonal and short-term gas consumption variation
plinacro project basic facts cont
PLINACRO Project – Basic facts / cont.

Plinacro SCADA system

  • ABB Network Manager
    • 2 SCADA servers,
    • 2 UDW servers,
    • 1 DE server,
    • 1 web server,
    • 1 GIS/TIS server
    • 3 operator workstations
    • 2 DE workstation
  • Private communication network (microwave and UHV radio, fiber optic)
  • 66 RTUs connecting dispatching centre with:
    • appr. 30 major off-take stations
    • 7 major in-take stations
    • 9 regulating nodes
    • 1 underground gas storage
    • block stations, etc.
  • Special functions subsystem featuring
    • Load forecasting
    • Realtime simulation
    • Leak detection and localization
    • Look-ahead simulation
    • Predictive simulation
    • Application modules
external data sources
External data sources

Gas meter readings (manual operation)

  • Hourly metered values are recorded locally in gas meters or data loggers
  • Periodically, recorded values are uploaded in PC and sent (or brought) to dispatching center
  • Collected data is stored in MS Access database
  • MS Access application enables: data analysis, reporting, aggregation and UDW update
  • Data stored in UDW by gas consumer (instead of by individual meter lines)

Nominations

  • Nominations sent by gas shipper INA for:
    • Gas production (20 in-take points)
    • Gas import (1 in-take point)
    • Special consumers (power plants, petrochemistry, sugar factories)
  • Hourly profiles stored in XML files which are sent to Plinacro
  • In Plinacro, received XML files are used to update UDW
  • Same application used by Plinacro to create hourly profiles for underground storage

Meteo data

    • Weather forecast for 2 variables (temperature, cloudness) on 6 locations received twice per day (flat ascii file received by ftp)
    • Forecast consists of 174 hourly values, starting from 01:00 or 13:00 hours of current day
    • Weather history received periodically for longer time period (eg. per month)
    • Received meteo data stored in MS Access database, and after that sent to UDW
load forecasting
Load forecasting

Special consumers (power plants, petrochemistry, sugar factories)

  • Shipper INA sends monthly nominations, which can be updated daily
  • Stepwise curves, received in XML files, stored in UDW
  • Operators are able to change contents of XML files

Large distribution networks and direct industrial consumers

  • Special program LOAD FORECAST used for load prediction
  • Load forecast run twice a day
  • Forecasting method: Kalman filter, exponential smoothing
  • Input data stored in UDW in the form of hourly time series data:
    • Previous day online gas counter reading history
    • Previous day weather history
    • Medium term weather forecast
    • 2 weather parameters (air temperature and cloudness) and type of day used as influence variables
    • Currently, weather forecast is used to create weather history!
    • Load forecast stored in UDW in the form of hourly time series data

Small nontelemetered distribution networks and direct industrial consumers

    • Constant load
    • Updated periodically – average historic values derived from manual meter readings
simone gas network model
SIMONE – gas network model
  • Basis for all SIMONE applications
  • Developed in SIMONE TOPO editor tool
  • ALL pipelines included
  • Real altitude profiles entered
  • Default pipe wall roughness entered (additional tuning necessary)
  • ALL off-take stations
  • ALL in-take stations
  • Switching elements (valves) for occasional topology modification – online or manual
  • Control elements (pressure and flow regulators)
  • “Star-like” regulating nodes – customization for Plinacro
  • Different gas qualities on in-take points
simone realtime execution
SIMONE realtime execution
  • State reconstruction and Leak detection controled by Cycle control program
  • Basic cycle length 3 min.
  • In data preparation phase 266 flows, pressures and other values imported from NM
  • After reconstruction run some calculated values are exported to NM
  • User can view ALL calculated values in SIMONE GUI (different ways)
  • Some calculated values can be viewed in NM environment
simone look ahead run
SIMONE look-ahead run
  • Look-ahead simulation execution controled by Cycle control program
  • Look-ahead cycle length - 3 min.
  • In data preparation phase boundary flow profiles are imported from NM
  • Special initial scenario is prepared and updated regularly for nontelemetered consumers
  • Initial state – estimated network state taken from realtime run
  • Setpoint values retain actual values from realtime run and stay constant during whole period of simulation
  • Simulation interval – 24 hours in advance from actual time
  • User can view ALL calculated values ONLY in SIMONE GUI
simone status export to nm
SIMONE Status export to NM
  • Status information in the form of numerical variables after each state reconstruction run exported to NM
  • Special SPL program in NM analyses received values and updates corresponding data points in AVANTI database
  • Operators can view information on special picture
  • Calculated values are processed and, if appropriate, entered in event or alarm list
simone and abb nm integration future
SIMONE and ABB NM Integration - Future
  • Load forecasting improvement
    • Forecasting of nontelemetered consumers – additional program for load forecasting
    • Integration of TeleReading system and using Load Forecast program for all consumers
    • Using own measurements of weather parameters
  • Redundancy support improvement – in progress
  • Export of Look-ahead simulation results in NM
  • Online “What-If” studies to support network operators
  • Improvement of Simone system status export in NM
  • Opimization when compressor station is installed.
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