Actions API : LoadAction with % value

[bc-rte]

Describe the current behavior

Currently, LoadAction allows the following actions :

• add fixed P (MW) and Q (MVAR) values to the current load, or
• set new fixed P (MW) and Q (MVAR) values for the load.

Describe the expected behavior

Another use case is:

• add or remove a % of existing load.

With this system, the rules to calculate new P and Q values after x% load change would be:

• ΔP = - (P₀ . x / 100)
• ΔQ = Q₀ - (ΔP * tan(φ))

The LoadAction api may want to use a variable for tan(φ), as desired value may depend on the voltage level.

This use-case is tricky to adapt to the current API, because to calculate the new load you need to know existing load values, which are usually not known when a remedial action is designed.

Describe the motivation

If a curative remedial action is designed ahead of time, existing load P and Q values cannot be known.

Extra Information

No response