Power stability refers to a consistent and reliable supply of electricity with minimal fluctuations. Several words can be used as synonyms for power stability, including voltage stability, load regulation, and frequency stability. These terms are commonly used in the electrical power industry to describe the quality and reliability of electrical power supply. Voltage stability refers to the ability of a power system to maintain a steady voltage level during variations in load demand. Load regulation refers to the ability of a power supply to maintain a constant voltage output despite variations in the load current. Frequency stability refers to the ability of a power system to maintain a stable frequency over time.