Study of HVDC System and Subsynchronous Oscillation

Peng Fei Zhang; Lian Guang Liu

doi:10.4028/www.scientific.net/AMR.1092-1093.356

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1092-1093Study of HVDC System and Subsynchronous...

Study of HVDC System and Subsynchronous Oscillation

Abstract:

With the application and development of Power Electronics, HVDC is applied more widely China. However, HVDC system has the possibilities to cause subsynchronous torsional vibration interaction with turbine generator shaft mechanical system. This paper simply introduces the mechanism, analytical methods and suppression measures of subsynchronous oscillation. Then it establishes a power plant model in islanding model using PSCAD, and analyzes the effects of the number and output of generators to SSO, and verifies the effect of SEDC and SSDC using time-domain simulation method. Simulation results show that the more number and output of generators is detrimental to the stable convergence of subsynchronous oscillation, and SEDC、SSDC can restrain unstable SSO, avoid divergence of SSO, ensure the generators and system operate safely and stably

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Periodical:

Advanced Materials Research (Volumes 1092-1093)

Pages:

356-361

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1092-1093.356

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Online since:

March 2015

Authors:

Peng Fei Zhang*, Lian Guang Liu

Keywords:

High Voltage Direct Current, Subsynchronous Oscillation, Suppression Measures

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* - Corresponding Author

References

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