This paper deals with a method for identification of a Hammerstein model of DC-DC converters operating in continuous conduction mode (CCM). This model has the duty cycle and the output voltage as input and output, respectively; it consists of a static nonlinearity and a linear and time-invariant model. The aim of the modeling the system by means of a Hammerstein model is due to its capability of describing the converter in a range of steady-state operating points instead of a desired well defined operating point as occurs for the small-signal models which are the more common mathematical description to approach the study of the converters themselves. The nonlinear characteristic of the Hammerstein model is constructed by determining a certain number of its input-output couples using the results of measures carried out at the steady-state for constant inputs. The linear model is identified using results of a transient corresponding to a suitable two-values PRBS sequence whose values are chosen among the above input-output couples of the nonlinearity. The identification of the Hammerstein model is carried out using experiments carried out in PSpice environment.

ALONGE F, D'IPPOLITO F, RAIMONDI F M, TUMMINARO S (2004). Identification of a Hammerstein model for DC/DC converters operating in CCM. In Proceeding of IEEE 35th Annual Power Electronics Specialists Conference (pp.3798-3802). Institute of Electrical and Electronics Engineers Inc. [10.1109/PESC.2004.1355146].

Identification of a Hammerstein model for DC/DC converters operating in CCM

ALONGE, Francesco;D'IPPOLITO, Filippo;RAIMONDI, Francesco Maria;TUMMINARO, Salvatore
2004-01-01

Abstract

This paper deals with a method for identification of a Hammerstein model of DC-DC converters operating in continuous conduction mode (CCM). This model has the duty cycle and the output voltage as input and output, respectively; it consists of a static nonlinearity and a linear and time-invariant model. The aim of the modeling the system by means of a Hammerstein model is due to its capability of describing the converter in a range of steady-state operating points instead of a desired well defined operating point as occurs for the small-signal models which are the more common mathematical description to approach the study of the converters themselves. The nonlinear characteristic of the Hammerstein model is constructed by determining a certain number of its input-output couples using the results of measures carried out at the steady-state for constant inputs. The linear model is identified using results of a transient corresponding to a suitable two-values PRBS sequence whose values are chosen among the above input-output couples of the nonlinearity. The identification of the Hammerstein model is carried out using experiments carried out in PSpice environment.
giu-2004
2004 IEEE 35th Annual Power Electronics Specialists Conference, PESC04
Aachen
June 20-25, 2004
2004
5
A stampa
ALONGE F, D'IPPOLITO F, RAIMONDI F M, TUMMINARO S (2004). Identification of a Hammerstein model for DC/DC converters operating in CCM. In Proceeding of IEEE 35th Annual Power Electronics Specialists Conference (pp.3798-3802). Institute of Electrical and Electronics Engineers Inc. [10.1109/PESC.2004.1355146].
Proceedings (atti dei congressi)
ALONGE F; D'IPPOLITO F; RAIMONDI F M; TUMMINARO S
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/15370
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