Abstract
A terminal of an electrical circuit is a wire that allows the circuit to interact with its environment through a potential and a current. Interconnection is defined as variable sharing: two terminals share the same potential and current. A port of an electrical circuit is a set of terminals that satisfy port-KCL (Kirchhoff’s current law). Power and energy that enter a circuit is defined for ports. Terminals are for interconnection, ports are for energy transfer. A port of a mechanical system is a set of terminals that satisfy port-KFL (Kirchhoff’s force law).
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Willems, J.C. (2010). Ports and Terminals. In: Willems, J.C., Hara, S., Ohta, Y., Fujioka, H. (eds) Perspectives in Mathematical System Theory, Control, and Signal Processing. Lecture Notes in Control and Information Sciences, vol 398. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-93918-4_3
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DOI: https://doi.org/10.1007/978-3-540-93918-4_3
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