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Novel Simplified Model for Asynchronous Machine with Consideration of Frequency Characteristic
Joint Authors
Ju, Ping
Cai, Changchun
Jin, Yuqing
Source
Journal of Applied Mathematics
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-05-26
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
The frequency characteristic of electric equipment should be considered in the digital simulation of power systems.
The traditional asynchronous machine third-order transient model excludes not only the stator transient but also the frequency characteristics, thus decreasing the application sphere of the model and resulting in a large error under some special conditions.
Based on the physical equivalent circuit and Park model for asynchronous machines, this study proposes a novel asynchronous third-order transient machine model with consideration of the frequency characteristic.
In the new definitions of variables, the voltages behind the reactance are redefined as the linear equation of flux linkage.
In this way, the rotor voltage equation is not associated with the derivative terms of frequency.
However, the derivative terms of frequency should not always be ignored in the application of the traditional third-order transient model.
Compared with the traditional third-order transient model, the novel simplified third-order transient model with consideration of the frequency characteristic is more accurate without increasing the order and complexity.
Simulation results show that the novel third-order transient model for the asynchronous machine is suitable and effective and is more accurate than the widely used traditional simplified third-order transient model under some special conditions with drastic frequency fluctuations.
American Psychological Association (APA)
Cai, Changchun& Ju, Ping& Jin, Yuqing. 2014. Novel Simplified Model for Asynchronous Machine with Consideration of Frequency Characteristic. Journal of Applied Mathematics،Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-491687
Modern Language Association (MLA)
Cai, Changchun…[et al.]. Novel Simplified Model for Asynchronous Machine with Consideration of Frequency Characteristic. Journal of Applied Mathematics No. 2014 (2014), pp.1-9.
https://search.emarefa.net/detail/BIM-491687
American Medical Association (AMA)
Cai, Changchun& Ju, Ping& Jin, Yuqing. Novel Simplified Model for Asynchronous Machine with Consideration of Frequency Characteristic. Journal of Applied Mathematics. 2014. Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-491687
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-491687