IIDM & XIIDM 1.6 evolutions

Feature

Allow to use a regulating terminal for VSC converter station

From this version, VSC converter station can have a remote regulating terminal indicated by the sub-object regulatingTerminal.

Changes

Optional Substation containers

Substation containers are now optional for VoltageLevel, TwoWindingsTransformer and ThreeWindingsTransformer: those components can be directly created from the network e.g.

Network network = Network.create("test", "test");
VoltageLevel vl = network.newVoltageLevel()
                       .setId("VL")
                       .setTopologyKind(NODE_BREAKER)
                       .setNominalV(380.0)
                       .add();

Consequently, the method getSubstation() of these APIs returns an Optional<Substation> that can be empty. The new methods getNullableSubstation() return a Substation that can be null.

Please note that for groovy scripts, getSubstation() methods still return a Substation that can be null.