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Stefan cel Mare
University of Suceava
Faculty of Electrical Engineering and
Computer Science
13, Universitatii Street
Suceava - 720229
ROMANIA

Print ISSN: 1582-7445
Online ISSN: 1844-7600
WorldCat: 643243560
doi: 10.4316/AECE


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2017-Jun-14
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  4/2016 - 13

Digital Resonant Controller based on Modified Tustin Discretization Method

STOJIC, D. See more information about STOJIC, D. on SCOPUS See more information about STOJIC, D. on IEEExplore See more information about STOJIC, D. on Web of Science
 
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Download PDF pdficon (1,617 KB) | Citation | Downloads: 196 | Views: 675

Author keywords
current control, DC-AC power converters, digital filters, motor drives, three-phase electric power

References keywords
power(18), electronics(15), resonant(9), controllers(8), iecon(6), industrial(5), filters(5), digital(5), blaabjerg(5), performance(4)
Blue keywords are present in both the references section and the paper title.

About this article
Date of Publication: 2016-11-30
Volume 16, Issue 4, Year 2016, On page(s): 83 - 88
ISSN: 1582-7445, e-ISSN: 1844-7600
Digital Object Identifier: 10.4316/AECE.2016.04013
Web of Science Accession Number: 000390675900013
SCOPUS ID: 85007602709

Abstract
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Resonant controllers are used in power converter voltage and current control due to their simplicity and accuracy. However, digital implementation of resonant controllers introduces problems related to zero and pole mapping from the continuous to the discrete time domain. Namely, some discretization methods introduce significant errors in the digital controller resonant frequency, resulting in the loss of the asymptotic AC reference tracking, especially at high resonant frequencies. The delay compensation typical for resonant controllers can also be compromised. Based on the existing analysis, it can be concluded that the Tustin discretization with frequency prewarping represents a preferable choice from the point of view of the resonant frequency accuracy. However, this discretization method has a shortcoming in applications that require real-time frequency adaptation, since complex trigonometric evaluation is required for each frequency change. In order to overcome this problem, in this paper the modified Tustin discretization method is proposed based on the Taylor series approximation of the frequency prewarping function. By comparing the novel discretization method with commonly used two-integrator-based proportional-resonant (PR) digital controllers, it is shown that the resulting digital controller resonant frequency and time delay compensation errors are significantly reduced for the novel controller.


References | Cited By  «-- Click to see who has cited this paper

[1] D. G. Holmes, B. P. McGrath, and S. G. Parker, "Current regulation strategies for vector-controlled induction motor drives," Industrial Electronics, IEEE Transactions on, vol. 59, pp. 3680-3689, 2012.
[CrossRef] [Web of Science Times Cited 77] [SCOPUS Times Cited 91]


[2] A. G. Yepes, F. D. Freijedo, J. Doval-Gandoy, O. Lopez, J. Malvar, and P. Fernandez-Comesa, "On the discrete-time implementation of resonant controllers for active power filters," in Industrial Electronics, 2009 (IECON'09). 35th Annual Conference of IEEE, 2009, pp. 3686-3691.
[CrossRef] [SCOPUS Times Cited 17]


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[CrossRef] [Web of Science Times Cited 63] [SCOPUS Times Cited 123]


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[CrossRef] [Web of Science Times Cited 404] [SCOPUS Times Cited 525]


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[CrossRef]


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[CrossRef] [SCOPUS Times Cited 23]


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[CrossRef] [Web of Science Times Cited 34] [SCOPUS Times Cited 104]


[12] R. Teodorescu, F. Blaabjerg, U. Borup, and M. Liserre, "A new control structure for grid-connected LCL PV inverters with zero steady-state error and selective harmonic compensation," in Applied Power Electronics Conference and Exposition, 2004 (APEC '04). Nineteenth Annual IEEE, 2004, pp. 580-586.
[CrossRef]


[13] D. Luczak, "Tunable digital filter structures for resonant frequency effect reduction in direct drive," in Communication Systems, Networks & Digital Signal Processing (CSNDSP), 2012, 8th International Symposium on, 2012, pp. 1-6.
[CrossRef] [Web of Science Times Cited 1] [SCOPUS Times Cited 10]


[14] S. A. Khajehoddin, M. Karimi-Ghartemani, P. K. Jain, and A. Bakhshai, "A resonant controller with high structural robustness for fixed-point digital implementations," Power Electronics, IEEE Transactions on, vol. 27, pp. 3352-3362, 2012.
[CrossRef] [Web of Science Times Cited 33] [SCOPUS Times Cited 35]


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[CrossRef] [Web of Science Times Cited 1] [SCOPUS Times Cited 3]


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[CrossRef] [Full Text]




References Weight

Web of Science® Citations for all references: 1,629 TCR
SCOPUS® Citations for all references: 2,357 TCR

Web of Science® Average Citations per reference: 78 ACR
SCOPUS® Average Citations per reference: 112 ACR

TCR = Total Citations for References / ACR = Average Citations per Reference

We introduced in 2010 - for the first time in scientific publishing, the term "References Weight", as a quantitative indication of the quality ... Read more

Citations for references updated on 2018-06-23 08:34 in 136 seconds.




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Faculty of Electrical Engineering and Computer Science
Stefan cel Mare University of Suceava, Romania


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