This information is part of the Modelica Standard Library maintained by the Modelica Association.

The reference angle gamma:

• defines the angular frequency omega of the voltages and currents of a circuit by means of omega = der(gamma).
• is not a global quantity since it propagated through the connector. Therefore, independent circuits of different frequencies can be modeled in one model.
• is present only once in a polyphase connector; a polyphase component has only one reference angle common to all phases.
• can be either constant or variable, but it has to be consistent in one contiguous circuit.
• is defined by the sources.

Designing new components, the guidelines of Section 9.4.1 (Overconstrained Equation Operators for Connection Graphs) of the Modelica 3.4 specification have to be taken into account.

See also

Introduction, AC circuit, Power