Title :
Study on operation characteristics and stability evaluation method at sending-end of DC transmission system
Author :
Yi Jun ; Ma Shicong ; Du Mian
Author_Institution :
China Electr. Power Res. Inst., Beijing, China
Abstract :
For the situation that many Ultra-HVDC projects can not reach the maximum transmission capacity in the beginning of operation. Considering more Ultra-HVDC projects put into operation recently, this paper analyzed key facts limiting transmission capability at the sending-end of Ultra-HVDC from static stability, voltage fluctuation and AC-DC coupling characteristics. Furthermore, based on short-circuit ratio which is usually in receiving-end of DC, analyzes the relationship between short-circuit ratio of sending-end of DC and maximum transmission capability, and the critical short-circuit ratio maintaining stable operation of system at sending-end of DC transmission is given.
Keywords :
AC-DC power convertors; DC transmission networks; HVDC power transmission; power system stability; short-circuit currents; AC-DC coupling characteristics; DC transmission system; critical short-circuit ratio; operation characteristics; sending-end; stability evaluation; static stability; transmission capability; ultraHVDC projects; voltage fluctuation; Circuit stability; Couplings; HVDC transmission; Power system stability; Rectifiers; Stability analysis; Thermal stability; Evaluation Method; Sending-end; Short-circuit Ratio; Ultra-HVDC;
Conference_Titel :
Power System Technology (POWERCON), 2014 International Conference on
Conference_Location :
Chengdu
DOI :
10.1109/POWERCON.2014.6993814
