Emergency Power Support and Voltage Stability Analysis of the AC/DC Hybrid Transmission System

Yuan Xin Hong; Guang Qing Bao

doi:10.4028/www.scientific.net/AMR.614-615.1033

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 614-615Emergency Power Support and Voltage Stability...

Emergency Power Support and Voltage Stability Analysis of the AC/DC Hybrid Transmission System

Abstract:

With the completion of Three Gorges Project, the power system in China is forming a huge AC/DC network. In the hybrid AC/DC parallel transmission system, a line fault will cause fluctuations even crash of the system. The HVDC transmission system based on the emergency DC power support (EDCPS) can provide a fast emergency power support for the interconnected AC power grid flexibly and improve the stability of AC power. A model of AC/DC hybrid transmission system is established in the PSCAD/EMTDC simulation environment. An improved PID controller is firstly introduced to the hybrid AC/DC transmission system. The simulation result shows the EDCPS has an obvious effect on keeping the voltage stability of the system.

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Periodical:

Advanced Materials Research (Volumes 614-615)

Pages:

1033-1037

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.614-615.1033

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Online since:

December 2012

Authors:

Yuan Xin Hong, Guang Qing Bao

Keywords:

Emergency Power Support, High Voltage Direct Current, Voltage Stability

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