Keywords
asynchronous grids, total transfer capability, frequency stability, HVDC tie-line, corrective control, low-inertia
Abstract
The interconnection between asynchronous power systems can promote the consumption of clean energy andthe optimization of resources by high voltage direct current ( HVDC) transmission systems. However, the frequencystability problem becomes a potential threat to power systems, which can be considered as a major challenge of thesending power grid. A novel total transfer capability assessment model (FTTC) of H VDCs is proposed by taking intoaccount the frequency stability of sending- end grid. Considering the inertia reserve requirements and frequency stabil-ity constraints of the sending-end grid, the model can produce maximum acceptable TTC of HVDC tie-lines. Moreo-ver, a optimization model of the HVDC tie-line operation is developed by considering the coordination of the HVDCcorrective control and the generation trigger after contingency. Finally, a case study of the modified RTS-79 system isused to verify the effectiveness of the proposed method.
DOI
10.19781/j.issn.1673-9140.2021.02.001
First Page
3
Last Page
12
Recommended Citation
Xiao, Youqiang; Deng, Buqing; and Wen, Yunfeng
(2021)
"Total transfer capability assessment of HVDC tie-lines basedonfrequency stability of the sending-end grid,"
Journal of Electric Power Science and Technology: Vol. 36:
Iss.
2, Article 1.
DOI: 10.19781/j.issn.1673-9140.2021.02.001
Available at:
https://jepst.researchcommons.org/journal/vol36/iss2/1