Supplemental Attributes

While the ext field is a mechanism for adding arbitrary metadata. PowerSystems.jl, has moved towards a more structured and formalized way of handling supplemental data using SupplementalAttribute structs. This is designed to store metadata in a more organized fashion than a generic dictionary. These attributes are intended to be attached to a Component types.

Supplemmental attributes can be shared between components or have 1-1 relationships. This is particularly useful to represent components in the same geographic location or outages for multiple components. Conversely, components can contain many attributes.

flowchart LR A["Attribute A"] --> B["Component 1"] A --> C["Component2"] D["Attribute B"] --> C["Component 2"] E["Attribute C"] --> F["Component 3"]

Supplemental attributes can also contain timeseries in the same that a component can allowing the user to model time varying attributes like outage time series or weather dependent probabilities. See the section Working with Time Series Data for details on time series handling.

Supplemental Attributes

Getting the attributes in a component or system

Getting the components in an attribute

Adding Time Series to an attribute

Existing Supplemental Attributes in PowerSystems