Comparison study on machine-electricity and electromagnetic transient model of UHVDC dynamic characteristic

A parallel AC/DC power system with long distance and heavy capacity will be formed till 2010 in southern China power grid. In simulation program BPA, machine-electric transient model of HVDC is used, which is not proper for unsymmetrical fault. To verify its distortion under unsymmetrical fault and...

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Bibliographische Detailangaben
Hauptverfasser:	Sun, S.Y., Shu, H.C., Zhu, Z.Z., Zhang, G.B., Liu, K.Z., Si, D.J.
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Analytical models dynamic characteristic Electromagnetic modeling electromagnetic transient Electromagnetic transients HVDC transmission Machine-electricity Transient Power grids Power system dynamics Power system faults Power system modeling Power system simulation Power system transients ultra-high voltage DC system
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Beschreibung
Zusammenfassung:	A parallel AC/DC power system with long distance and heavy capacity will be formed till 2010 in southern China power grid. In simulation program BPA, machine-electric transient model of HVDC is used, which is not proper for unsymmetrical fault. To verify its distortion under unsymmetrical fault and its validity under symmetrical fault, quasi steady-state model and electromagnetic transient model of Yun-Guang UHVDC are respectively established, and dynamic characteristic such as DC power,DC current and voltage of converter bus are simulated and analyzed under unsymmetrical and symmetrical disturbance, which provides reference for the operation and simulation for Yun-Guang UHVDC-AC hybrid system.
DOI:	10.1109/EPC.2008.4763369