Title :
Study on stability of ±800kV UHVDC transmission project
Author :
Deng, Xuehu ; Zhou, Renjun ; Zhang, Chenhao
Author_Institution :
Dept. of Electr. & Inf. Eng., Changsha Univ. of Sci. & Technol., Changsha
Abstract :
A number of Ultra High Voltage Direct Current (UHVDC) projects are planned currently in world wide, particularly for large hydropower projects in China. The stability of plusmn800 kV UHVDC transmission system and its receiving system is analyzed in this paper, based on the UHVDC transmission project from Xiluodu Left Bank to Zhuzhou in the first period of Jinsha River DC project. According to the system model, basic conditions and demands of UHVDC transmission project are presented. Considering the practical situation and grid planning of receiving system in this project, an initial analysis for receiving end applicability is made by calculating power flow under the conditions of both normal and N-l lines operation. Detailed discussion on the impact of both monopolar and bipolar block on DC lines are given, and short circuit current and three phases fault near inverter station are also studied. The results can contribute greatly to UHVDC project.
Keywords :
HVDC power convertors; HVDC power transmission; power system stability; power transmission faults; short-circuit currents; China; Jinsha River DC project; UHVDC transmission project; Xiluodu Left Bank; Zhuzhou; grid planning; inverter station; large hydropower projects; power flow; short circuit current; three phases fault; ultra high voltage direct current projects; Circuit faults; Hydroelectric power generation; Inverters; Load flow; Power system modeling; Power system planning; Rivers; Short circuit currents; Stability analysis; Voltage; Power system stability; Receiving end; UHVDC transmission; Zhuzhou converter station;
Conference_Titel :
Power Engineering Conference, 2007. IPEC 2007. International
Conference_Location :
Singapore
Print_ISBN :
978-981-05-9423-7
