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Modified Quasi-Steady State Model of DC System for Transient Stability Simulation under Asymmetric Faults
Joint Authors
Liu, Jun
Wei, Zhanhong
Fang, Wanliang
Duan, Chao
Hou, Junxian
Xiang, Zutao
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-10-18
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
As using the classical quasi-steady state (QSS) model could not be able to accurately simulate the dynamic characteristics of DC transmission and its controlling systems in electromechanical transient stability simulation, when asymmetric fault occurs in AC system, a modified quasi-steady state model (MQSS) is proposed.
The model firstly analyzes the calculation error induced by classical QSS model under asymmetric commutation voltage, which is mainly caused by the commutation voltage zero offset thus making inaccurate calculation of the average DC voltage and the inverter extinction advance angle.
The new MQSS model calculates the average DC voltage according to the actual half-cycle voltage waveform on the DC terminal after fault occurrence, and the extinction advance angle is also derived accordingly, so as to avoid the negative effect of the asymmetric commutation voltage.
Simulation experiments show that the new MQSS model proposed in this paper has higher simulation precision than the classical QSS model when asymmetric fault occurs in the AC system, by comparing both of them with the results of detailed electromagnetic transient (EMT) model of the DC transmission and its controlling system.
American Psychological Association (APA)
Liu, Jun& Wei, Zhanhong& Fang, Wanliang& Duan, Chao& Hou, Junxian& Xiang, Zutao. 2015. Modified Quasi-Steady State Model of DC System for Transient Stability Simulation under Asymmetric Faults. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-12.
https://search.emarefa.net/detail/BIM-1072906
Modern Language Association (MLA)
Liu, Jun…[et al.]. Modified Quasi-Steady State Model of DC System for Transient Stability Simulation under Asymmetric Faults. Mathematical Problems in Engineering No. 2015 (2015), pp.1-12.
https://search.emarefa.net/detail/BIM-1072906
American Medical Association (AMA)
Liu, Jun& Wei, Zhanhong& Fang, Wanliang& Duan, Chao& Hou, Junxian& Xiang, Zutao. Modified Quasi-Steady State Model of DC System for Transient Stability Simulation under Asymmetric Faults. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-12.
https://search.emarefa.net/detail/BIM-1072906
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1072906