Improving power grid transient stability and transfer capability using HVDC emergency power controls

Conference · Thu Oct 01 04:00:00 EDT 2020

DOI:https://doi.org/10.1109/TD39804.2020.9299660· OSTI ID:1769232

Sundaresh, Lakshmi ^[1]; Yuan, Zhiyong ^[1]; Sun, Kaiqi ^[1]; Pan, Jiuping ^[2]; Liu, Yilu ^[3]

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1. University of Tennessee, Knoxville (UTK)
2. ABB Corporate Research
3. ORNL

In the future, with high levels of renewable energy sources penetration, the transmission corridors will have to be flexible to operate under faster transients and variable power flows. Fast power ramping and overloading capabilities of HVDC system can be utilized to ensure transient stability of the interconnected power grid. In this paper, HVDC auxiliary controllers have been studied that can provide the power grid with additional synchronizing torques through fast DC power changes in response to arising system conditions. The effectiveness of the auxiliary controllers in improving transient stability is demonstrated by performing dynamic simulations on the detailed model of the Western Interconnection system (WECC).

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1769232
• Country of Publication: United States
• Language: English