Title :
Comparison study on machine-electricity and electromagnetic transient model of UHVDC dynamic characteristic
Author :
Sun, S.Y. ; Shu, H.C. ; Zhu, Z.Z. ; Zhang, G.B. ; Liu, K.Z. ; Si, D.J.
Author_Institution :
Dept. of Electr. Power, Harbin Inst. of Technol., Harbin
Abstract :
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.
Keywords :
HVDC power transmission; power grids; power system transients; power transmission faults; BPA simulation program; Yun-Guang UHVDC dynamic characteristics; electromagnetic transient model; machine-electric transient model; parallel AC-DC power system; quasi steady-state model; southern China power grid; ultra-high-voltage direct current system; unsymmetrical fault distortion; Analytical models; Electromagnetic modeling; Electromagnetic transients; HVDC transmission; Power grids; Power system dynamics; Power system faults; Power system modeling; Power system simulation; Power system transients; Machine-electricity Transient; dynamic characteristic; electromagnetic transient; ultra-high voltage DC system;
Conference_Titel :
Electric Power Conference, 2008. EPEC 2008. IEEE Canada
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4244-2894-6
Electronic_ISBN :
978-1-4244-2895-3
DOI :
10.1109/EPC.2008.4763369
