IIDM & XIIDM 1.11 evolutions

Features

Properties on calculated buses

In voltage level in node/breaker topology, we export in XIIDM format buses as

<iidm:bus v="234.40912" angle="0.0" nodes="0,1,2,3,4"/>

These are called calculated buses. From this IIDM version, properties associated to these buses are exported. This will lead to something like:

<iidm:bus v="234.40912" angle="0.0" nodes="0,1,2,3,4">
      <iidm:property name="key_test" value="value_test"/>
</iidm:bus>

Voltage angle limits

A voltage angle limit is the admissible value for the voltage angle difference in degree between the buses associated to two terminals. This operational limit is associated to the network, as it can linked two terminals not directly connected through an equipment. The difference checks in a security analysis is always the voltage angle at bus of the to terminal minus the voltage angle at bus of the from terminal. This difference must be less than the high limit and higher than the low limit. Signs are important but both limits are optional. Note that to control voltage angle difference between two buses in both direction, high and low limits must be equal in absolute value with opposite sign.

<iidm:voltageAngleLimit id="VOLTAGE_ANGLE_LIMIT_NHV1_NHV2_2" lowLimit="0.2">
    <iidm:from id="NHV1_NHV2_2" side="ONE"/>
    <iidm:to id="NHV1_NHV2_2" side="TWO"/>
</iidm:voltageAngleLimit>
<iidm:voltageAngleLimit id="VOLTAGE_ANGLE_LIMIT_NGEN_NHV1" highLimit="0.35" lowLimit="-0.2">
     <iidm:from id="GEN"/>
     <iidm:to id="NGEN_NHV1" side="TWO"/>
</iidm:voltageAngleLimit>

A network has a set of voltage angle limits with each a unique identifier among them. But the unicity is not guarantee with the network identifiers.

Dangling line attribute name change

ucteXnodeCode has been renamed into pairingKey.