Impedance-based stability and transient-performance assessment applying maximum peak criteria

Vesti, Sanna Kaarina and Suntio, T. and Oliver Ramírez, Jesús Angel and Prieto López, Roberto and Cobos Márquez, José Antonio (2013). Impedance-based stability and transient-performance assessment applying maximum peak criteria. "IEEE Transactions on Power Electronics", v. 28 (n. 5); pp. 2099-2104. ISSN 0885-8993. https://doi.org/10.1109/TPEL.2012.2220157.

Description

Title: Impedance-based stability and transient-performance assessment applying maximum peak criteria
Author/s:
  • Vesti, Sanna Kaarina
  • Suntio, T.
  • Oliver Ramírez, Jesús Angel
  • Prieto López, Roberto
  • Cobos Márquez, José Antonio
Item Type: Article
Título de Revista/Publicación: IEEE Transactions on Power Electronics
Date: 2013
ISSN: 0885-8993
Volume: 28
Subjects:
Freetext Keywords: Minor-loop gain, sensitivity function, stability, switched-mode converter, transient performance
Faculty: Centro de Electrónica Industrial (CEI) (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The impedance-based stability-assessment method has turned out to be a very effective tool and its usage is rapidly growing in different applications ranging from the conventional interconnected dc/dc systems to the grid-connected renewable energy systems. The results are sometime given as a certain forbidden region in the complex plane out of which the impedance ratio--known as minor-loop gain--shall stay for ensuring robust stability. This letter discusses the circle-like forbidden region occupying minimum area in the complex plane, defined by applying maximum peak criteria, which is well-known theory in control engineering. The investigation shows that the circle-like forbidden region will ensure robust stability only if the impedance-based minor-loop gain is determined at the very input or output of each subsystem within the interconnected system. Experimental evidence is provided based on a small-scale dc/dc distributed system.

More information

Item ID: 29571
DC Identifier: http://oa.upm.es/29571/
OAI Identifier: oai:oa.upm.es:29571
DOI: 10.1109/TPEL.2012.2220157
Official URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6317195
Deposited by: Memoria Investigacion
Deposited on: 27 Apr 2015 16:36
Last Modified: 27 Apr 2015 16:36
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