Journal of Electrical Engineering and Automation

In modern power systems, the problem of neutral point overvoltage has always been one of the key factors affecting the safe and stable operation of the power grid. With the continuous expansion of the power system scale and the gradual improvement of voltage levels, the phenomenon of neutral point overvoltage has become increasingly complex and diverse, and its harm has become increasingly significant. Overvoltage can not only cause insulation damage to electrical equipment, but also lead to system failures and even cause widespread power outages. Therefore, in-depth research on the formation mechanism, characteristic analysis, and effective protection technology of neutral point overvoltage in power systems is of great theoretical and practical significance for ensuring the safe and reliable operation of power systems.

Power system; Neutral point; Overvoltage; Protecting technology; Intelligent monitoring