Application analysis of voltage stability index in a power system with new energy vehicles integration
School of Electric Power Engineering, School of Shenguorong, Nanjing Institute of Technology, Nanjing, Jiangsu, China.
Research Article
Global Journal of Engineering and Technology Advances, 2024, 21(03), 203-209.
Article DOI: 10.30574/gjeta.2024.21.3.0226
Publication history:
Received on 05 November 2024; revised on 12 December 2024; accepted on 14 December 2024
Abstract:
The paper analyses the influence of new energy vehicles on the voltage stability of the power system after grid-connected charging, and introduces two voltage stability indexes (L index and VCPI index) that can intuitively reflect the voltage stability level of the power system. Based on the typical voltage stability test model of the power system, two sets of new energy vehicle loads are added for simulation analysis, and the voltage stability state of the important buses (including the charging buses) in the system under different load combinations is observed. Through the collection of data, the L index and the VCPI index were calculated, and the accuracy of the two indexes was compared and verified.
Keywords:
New energy vehicles; Voltage stability index; Charging bus; Local voltage stability index; Voltage collapse proximity index
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