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SDDP 17.3

🌐 Please refer to the release site and check out the most important features developed on this release. 📝 For the detailed changelog and download links, please visit this page.

New features and improvements

  • GUI
    • Discontinuation of Graph 3 interface, replaced by Graph 4
    • Discontinuation of DrawHydro, replaced by Topology Viewer
    • Discontinuation of 32-bit version
  • Model
    • Hourly representation
      • Hydro commitment
      • Risk aversion curve (RAC) included in the model
      • Enhanced energy transference window of flexible demand modeling
    • The hydroelectric storage data now allows the definition of explicit limits for run-of-river plants, which are used in the chronological blocks, typical days and hourly representation for intra-stage modulation
      • Aiming to provide an automatic transition to the new representation, a data conversion process has been incorporated into the 17.3 interface:
        • The ror_operative_storage.dat file that contains the storage limits for hourly executions has been discontinued with the information being incorporated in the registry data
        • Run-of-river plants with 0 hm3 of useful storage had their limits recalculated according to its modulation capacity. The new limits are determined as Vmax = Vmin + 2 * (1 - regulation factor). Minimum storage Vmin remains unchanged.
      • Added option to allow automatic classification of hydroelectric plants based on its regularization capacity (useful storage and turbining capacity ratio, given in hours)
    • Typical days modeling
      • Intra-stage modulation for small storages (run-of-river, batteries, CSPs…)
      • Thermal operating constraints: generation ramps, minimum downtime, minimum uptime, maximum uptime
      • Hydro operating constraints: generation ramps and outflow ramps
      • New flexible demand modeling for typical days representation (following new hourly modeling)
      • Typical days with aggregated block strategy in policy phase
      • Detailed and profile typical days mapping options
      • Automatic typical days clusterization based on the demand stage profile through PSRClustering (only for detailed mapping)
    • Network contingency representation. This feature includes an option to enable contigencies representation from a specific iteration in the policy
    • Post-contingency network report
    • Operational status of DC link
    • Custom modeling
      • Generic interpolation constraints non-linear functions modeling
      • Generic variables, allowing its use with internal SDDP variables through generic linear and interpolation constraints
      • New variables in generic constraints: initial hydro volume, battery charge and discharge, demand, and electrical consumption for electrification
    • New dashboard and result comparator based on PSRIO
    • Hourly maintenance for hydro, thermal, and battery as well as stage-wise battery maintenance
    • Execution option to not apply the forced outage factor
    • Generation reserve features
      • Quantity and price of joint battery and CSP reserve offer
      • Joint renewable reserve
      • Maximum offer per generator-reserve
      • Reserve sharing
      • Absolute reserve + dynamic probabilistic reserve option
      • Allow maximum joint reserve offer as percentage of nominal available capacity for hydro and thermal plants
    • Battery Operation & Maintenance cost
    • Modification data of hydroelectric Operation & Maintenance cost
    • Dynamic line rating for the representation of environment conditions (such as temperature) influence over transmission lines capacities
    • Execution options interface reorganization
    • Xpress solver update to version 9.1