plant-dispatch

Plant dispatch

This script distribute SDDP or NCP plant's generation in PSS/E generators.

Requirements

• PSS/E 33 or newer
• Python 3.3 or newer
  • psr-graf
    • pip install psr-graf
  • optional: pandas and numpy

Usage

1. Run Sddp with appropriate result files enabled
   • Thermal generation (gerter)
   • Renewable generation (gergnd)
   • Hydro generation (gerhid)
   • Battery generation (gerbat)
   • CSP generation (gercsp)
   • Power injection output (powinj)
2. Create a CSV file mapping Sddp scenarios to PSS/E scenarios (files)
3. Create a CSV file mapping Sddp plants to PSS/e generators
4. Create a CSV file mapping Sddp demands to PSS/e loads
5. Run script:

python sddp_plant_dispatch.py -p "path/to/psse/installation" -c "path/to/psse.sav" -sp "C:\temp\sddp_case"

For NCP, the steps are the same, except the output files are named as below:

• Thermal generation (gertercp)
• Renewable generation (gergndcp)
• Hydro generation (gerhidcp)
• Battery generation (gerbatcp)

The command for NCP dispatch is:

python sddp_plant_dispatch.py -m ncp -p "path/to/psse/installation" -c "path/to/psse.sav" -sp "C:\temp\sddp_case"

Input files

The following input files are required to run the script:

Input File	Description
scenario_names.csv	Maps SDDP or NCP scenarios to PSS/E file names
sddp_plant_psse_generator_map.csv	Maps SDDP or NCP plants to PSS/E generators
sddp_plant_psse_generator_map.csv	Maps SDDP or NCP demands to PSS/E loads

Scenario names

Maps a Sddp scenario to a PSS/E file name.

Column	Description
Stage Number	SDDP or NCP stage number
Scenario Number	SDDP or NCP scenario number
Block Number	SDDP or NCP block or hour number
Scenario Name	PSS/E file scenario name

SDDP/NCP Plant to PSS/E generator mapping

It's possible to distribute SDDP or NCP Plants' generation in multiple PSS/E generators using weights. The figure below illustrates it.

The file name is sddp_plant_psse_generator_map.csv and its column names are:

Column	Description
System ID	String with SDDP or NCP system id
Plant Type	String with SDDP or NCP plant type
Plant Name	String with SDDP or NCP plant name
Plant Bus	SDDP or NCP plant's bus number
Weight	Distribution weight of plant power to PSS/E generator element
Generator Bus	PSS/E generator's bus number
Generator Id	PSS/E generator's ID. It can be enclosed with '

Supported plant types:

Plant Type	Description	SDDP	NCP
hidroplant	Hydro plant	✅	✅
thermalplant	Thermal plant	✅	✅
renewableplant	Renewable plant	✅	✅
battery	Battery	✅	✅
csp	Concentrated solar power plant	✅	❌
powerinjection	Power injection	✅	❌

The weight value is used to distribute SDDP or NCP plant's dispatch to multiple PSS/E generators. For a specific generator i associated with a plant j, the PSS/e generator dispatch is like:

PSS/E generator's Pg(i) = weight(j, i) * SDDP/NCP Plant (j) dispatch

It shows that all weight for a plant can have a sum bigger than 1.0, and consequently PSS/E is going to see a dispatch bigger than SDDP/NCP.

SDDP/NCP Load to PSS/E load mapping

It's possible to distribute SDDP/NCP Loads' load in multiple PSS/E loads using weights. The figure below illustrates it.

The file name is sddp_psse_load_map.csv and its column names are:

Column	Description
SDDP/NCP Bus Name	String with SDDP/NCP bus name
Weight	Distribution weight of plant power to PSS/E generator element
Load Bus	PSS/E load's bus number
Load Id	PSS/E load's ID. It can be enclosed with '

The weight value is used to distribute SDDP/NCP bus load's to multiple PSS/E loads. For a specific PSS/E load i associated with a SDDP/NCP bus load j, the PSS/e load value is like:

PSS/E load's Pl(i) = weight(j, i) * SDDP/NCP Bus Load (j) value