A new fractional order hold and its capability in frequency response and zero placement

Farzad Hashemzadeh; Amin Rezaei Pish-Robat; Parviz Jabehdar-Maralani

doi:10.1155/2013/157292

A new fractional order hold and its capability in frequency response and zero placement

Farzad Hashemzadeh^*, Amin Rezaei Pish-Robat, Parviz Jabehdar-Maralani

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

This paper introduces a new holder with application on digital control systems. This holder is a combination of fractional order hold (FROH) and zero-order hold (ZOH) that has the capability of both holders and a frequency response better than both of ZOH and FROH. For the stability of zeros of the sampled system two theorems are stated and proved with the assumption that the sampling period is very small. Also simulation results are studied to show the effectiveness of the proposed holder and better performance results in comparison with ZOH and FROH.

Original language	English
Article number	157292
Journal	Journal of Applied Mathematics
Volume	2013
DOIs	https://doi.org/10.1155/2013/157292
Publication status	Published - 2013
Externally published	Yes

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abstract = "This paper introduces a new holder with application on digital control systems. This holder is a combination of fractional order hold (FROH) and zero-order hold (ZOH) that has the capability of both holders and a frequency response better than both of ZOH and FROH. For the stability of zeros of the sampled system two theorems are stated and proved with the assumption that the sampling period is very small. Also simulation results are studied to show the effectiveness of the proposed holder and better performance results in comparison with ZOH and FROH.",

author = "Farzad Hashemzadeh and {Rezaei Pish-Robat}, Amin and Parviz Jabehdar-Maralani",

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AB - This paper introduces a new holder with application on digital control systems. This holder is a combination of fractional order hold (FROH) and zero-order hold (ZOH) that has the capability of both holders and a frequency response better than both of ZOH and FROH. For the stability of zeros of the sampled system two theorems are stated and proved with the assumption that the sampling period is very small. Also simulation results are studied to show the effectiveness of the proposed holder and better performance results in comparison with ZOH and FROH.

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A new fractional order hold and its capability in frequency response and zero placement

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