Title :
Study of HVDC Light for its enhancement of AC/DC interconnected transmission systems
Author :
Zhong, Qing ; Zhang, Yao ; Lin, Lingxue ; Chen, Qian ; Wu, Zhigang
Author_Institution :
South China Univ. of Technol., Guangzhou
Abstract :
This paper illustrates a study on HVDC light for its enhancement of AC/DC hybrid transmission system and multi-infeed HVDC system. In the sense of the realizing independent controlling of active and reactive power, HVDC light is more effective compared to the conventional HVDC system. An AC/DC parallel transmission system and a three-infeed HVDC system are modeled using PSCAD/EMTDC. Simulations corresponding to different situations are performed. From the simulation results, HVDC light is proven to be able to improve the rotor angle stability and dynamic performance of AC/DC interconnected transmission system, and support the AC voltage during the system fault to enlarge the margin of the voltage stability which is the basic difference from conventional HVDC. HVDC light can also prevent commutation failure in multi-infeed HVDC system and help the recovery of HVDC system too.
Keywords :
HVDC power transmission; power system interconnection; power system stability; AC-DC interconnected transmission systems; AC-DC parallel transmission system; EMTDC; HVDC light; PSCAD; reactive power; rotor angle stability; system fault; three-infeed HVDC system; voltage stability; Control systems; EMTDC; HVDC transmission; Lighting control; PSCAD; Power system interconnection; Power system modeling; Reactive power control; Stability; Voltage; AC/DC transmission system; HVDC Light; commutation failure; power stability;
Conference_Titel :
Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008 IEEE
Conference_Location :
Pittsburgh, PA
Print_ISBN :
978-1-4244-1905-0
Electronic_ISBN :
1932-5517
DOI :
10.1109/PES.2008.4596003
