Sub-Synchronous Oscillation Caused by HVDC and the Damping Characteristic Analysis

Abstract:

Because of China's energy and load imbalance, respectively, large-scale long-distance power transmission becomes inevitable. Under this background , HVDC develops rapidly, SSO (Sub-synchronous oscillations) caused by HVDC is becoming increasingly apparent. The sub-synchronous electrical damping within the frequency range is difficult to calculate. Based on small-signal test method-complex torque coefficient method in the time-domain simulation , the paper calculated the sub-synchronous electrical damping characteristics of the system and analyzed the impact of the unit interaction, DC power and the generator output on sub-synchronous electrical damping characteristics.

• Periodical: Advanced Materials Research (Volumes 971-973)
• Pages: 1353-1356
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.971-973.1353
• Online since: June 2014
• Authors: Han Chen*, Chun Lin Guo, Qin Lei Chen
• Keywords: Complex Torque Coefficient Method, HVDC, Signal Testing Method, SSO Damping Characteristics, Sub-Synchronous Oscillation (SSO)

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