For a composite three-phase port, the Through variable is a three-element current, and the Across variable is a three-element voltage. Each electrical conserving port in an expanded three-phase port has a Through variable of scalar current and an Across variable of scalar voltage. Both connection methods consider instantaneous phase voltages and currents and are suitable for modeling balanced and unbalanced three-phase electrical power systems. Electrical conserving ports can connect directly to electrical components from the Simscape and SimscapeĬomposite three-phase ports produce results with the same fidelity as expanded three-phase ports. You individually connect each phase of the three-phase system between blocks. You can connect composite three-phase ports only to other composite three-phase ports.Įxpanded three-phase ports represent the individual phases of a three-phase system using three separate electrical conserving ports. Instead of explicitly connecting each phase of the three-phase system between blocks, you connect all three phases using a single port.
You can use composite three-phase ports to build models that correspond to single-line diagrams of three-phase electrical systems.
Composite three-phase ports represent three individual electrical conserving ports with a single block port.
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