A Study of Digital Voltage Stabilizer on Voltage Stability in Unstable Grids

Voltage stability is a critical concern in power systems, especially in unstable grids with high levels of renewable energy penetration and peak load switching. Digital Voltage Stabilizers (DVS) are a compromising technology for improving voltage stability in these grids. DVS uses real-time monitoring and control to adjust the position of the regulator on the secondary winding of the transformer. This paper reviews the state-of-the-art in DVS for voltage stability in unstable grids. It discusses the working principles, benefits, and limitations. The findings of this paper suggest that DVS can be an effective way to improve voltage stability in unstable grids. However, more research is needed to develop and optimize DVS control strategies and to assess their long-term performance and reliability.