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Cascading Failure and Blackout Risk Analysis of AC/DC Power System - The Impact of AC/DC Interconnection Mode and Capacity Distribution

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4 Author(s)
Jingzhe Tu ; Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China ; Deqiang Gan ; Huanhai Xin ; Zhen Wang

There has happened several severe blackout contingencies all over the world in recent ten years, and scholars have widely studied the cascading failure and blackout applying the self-organized criticality theory. However, little of the cascading failure models have considered the DC transmission and the complete dynamics, and different AC/DC interconnection modes and capacity distributions have significant impact on the system self-organized criticality. A dynamic cascading failure model including emergency control and protection probability characteristics and DC dynamics is proposed, with which dynamic simulation is performed to the 2010 East China power grid. In conditions of different AC/DC interconnection modes and capacity distributions, the outage power-outage probability curve is calculated, the impact on system self-organized criticality is analyzed, and the conclution that the probability of cascading failure and blackout can be decreased by selecting the suitable AC/DC interconnection mode and capacity distribution is obtained.

Published in:

Power and Energy Engineering Conference (APPEEC), 2012 Asia-Pacific

Date of Conference:

27-29 March 2012