State-Space Extraction Support

For how extraction works and how to enable it, see state-space extraction.

State-space extraction is available for EMT Ph3 and DP Ph1 simulations using the direct MNA solver. For models containing switches, the extracted matrix represents the currently active switch configuration. The matrix is recomputed when the switch status changes.

EMT Ph3

Supported components with extraction states are:

• EMT::Ph3::Inductor,
• EMT::Ph3::Capacitor,
• EMT::Ph3::TwoTerminalVTypeSSNComp,
• EMT::Ph3::TwoTerminalVTypeVariableSSNComp.

Supported algebraic components without extraction states are:

• EMT::Ph3::Resistor,
• EMT::Ph3::Switch,
• EMT::Ph3::VoltageSource.

The following composite components are supported through their immediate MNA subcomponents:

• EMT::Ph3::NetworkInjection,
• EMT::Ph3::PiLine,
• EMT::Ph3::RXLoad,
• EMT::Ph3::RxLine,
• EMT::Ph3::Shunt,
• EMT::Ph3::Transformer.

DP Ph1

Supported components with extraction states are:

• DP::Ph1::Inductor,
• DP::Ph1::Capacitor,
• DP::Ph1::TwoTerminalVTypeSSNComp,
• DP::Ph1::MixedVTypeVariableSSNComp.

Supported algebraic components without extraction states are:

• DP::Ph1::Resistor,
• DP::Ph1::Switch,
• DP::Ph1::VoltageSource.

The following composite components are supported through their immediate MNA subcomponents:

• DP::Ph1::NetworkInjection,
• DP::Ph1::PiLine,
• DP::Ph1::RXLoad,
• DP::Ph1::RxLine,
• DP::Ph1::Shunt,
• DP::Ph1::Transformer.

Supported composite components are expanded by one level during contributor discovery. Their immediate MNA subcomponents provide the state-space contributions, while the composite parent remains part of the simulation and retains its normal MNA stamping. Nested composites are currently unsupported.

Other component types are rejected explicitly when state-space extraction is enabled.