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Electro-Thermal Model for Thyristor for HVDC Valve

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5 Author(s)
Jun Yang ; China Electr. Power Res. Inst., Beijing, China ; Jing Zhang ; Jun-zheng Cao ; Kun-peng Zha
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To enhance the electricity grid's capacity of resource allocation, long-distance, large capacity (Ultra) high-voltage DC transmission technology is widely used. Significantly increased voltage and current levels affect both electric and thermal characteristics of the thyristors in a DC converter valve. This paper aims to establish a thyristor electro-thermal model to analyze the interaction between electrical and thermal stresses under various steady and transient operation conditions. Thyristor junction temperature prediction method was investigated to ensure its long-term reliability in applications.

Published in:

2012 Asia-Pacific Power and Energy Engineering Conference

Date of Conference:

27-29 March 2012