| Title |
Enhancement of Maximum Power Transfer Capability and Voltage Stability in Urban Metro Station Power System Using Reactive Power Compensation |
| Authors |
임종훈(Jong-Hun Lim) ; 김경화(Kyeong-Hwa Kim) |
| DOI |
https://doi.org/10.5370/KIEE.2025.74.11.1763 |
| Keywords |
Reactive power compensation; Load characteristics; Voltage stability; P-V Curve; V-Q Curve |
| Abstract |
In modern subway stations, inductive loads such as HVAC systems, lighting, and elevator equipment are concentrated, resulting in large fluctuations in power demand and increased reactive power consumption. These load characteristics can cause various problems such as voltage drop, insufficient facility capacity, and deterioration of power quality. In this study, the distribution system structure and load characteristics of Incheon Metro stations were analyzed, and the application of FACTS (Flexible AC Transmission Systems) was proposed as a reactive power compensation measure to secure voltage stability and operating margin without adding substations. The voltage collapse point was identified through P?V (Nose) curve and V-Q curve analysis, and the compensation effect was quantitatively verified by comparing the system performance with and without reactive power compensation through MATLAB/Simulink simulation. |