For N-1, Security Analysis or Sensitivity Analysis, start simulations with AC emulation HVDC frozen to previous active set point. #1199
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Signed-off-by: Didier Vidal <[email protected]>
Signed-off-by: Didier Vidal <[email protected]>
Signed-off-by: Didier Vidal <[email protected]>
Signed-off-by: Didier Vidal <[email protected]>
Signed-off-by: Didier Vidal <[email protected]>
Signed-off-by: Didier Vidal <[email protected]>
Signed-off-by: Didier Vidal <[email protected]>
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Signed-off-by: Didier Vidal <[email protected]>
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Please check if the PR fulfills these requirements
Does this PR already have an issue describing the problem?
No
What kind of change does this PR introduce?
Allow to detect dangerous situation with HVDC in AC emulation mode in N-1, Security Analysis or Sensitivty Analysis.
HVDC lines in AC emulation mode monitor their active set point depending on the angle difference of the AC signal at each
side of the line. However, the change in active set point to reach the new equilibrium after a contingency is typically more than
a minute. Situations can happen where after a contingency, it is impossible to deliver or evacuate the active power flowing
through the HVDC line. Without this PR, these situations are not detected because the siumlator assumes that the HVDC adapt
instantaneously to AC angles.
What is the current behavior?
HVDC lines adapt their active set point instaneously. Situations where it is impossible to deliver or evacuate the active power after a contingency are not detected.
What is the new behavior (if this is a feature change)?
In N-1 (voltage initialization set to PREVIOUS_VALUES), in Security Analysis or in Sensitivity analysis, a first computation is run with AC emulation HVDC lines frozen to their previous active set point. Is the compuation succeeds (and if present the slack distribution), then the frozen HVDC lines a reset to their AC emulation mode.
Does this PR introduce a breaking change or deprecate an API?