Abstract
The asynchronous interconnection mode between the Yunnan Province Power Grid and China Southern Power Grid was implemented in 2016. However, during the practical experiment of raising HVDC power in the asynchronous mode, the frequency of the Yunnan Power Grid oscillated at ultra-low frequency for a long period. The present study includes a detailed analysis of experimental data, which indicates that the hydro unit governor system is the direct reason for the oscillation. Furthermore, the mechanism of governor systems for negative damping during oscillation is analyzed. A measure to optimize the proportional and integral (PI) parameters of the hydro unit governor is proposed using off-line simulation tools. Experiments on the actual power grid verified the effectiveness of the measure.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
