Voltage Compensation Principle Of Dynamic Voltage Regulator In Power System

Power systems face voltage disturbances from multiple directions during operation. Frequent occurrences include voltage drops, spikes, flicker, and three-phase imbalances. These disturbances can lead to sensitive equipment failures, production interruptions, and economic losses. Industries such as semiconductor manufacturing, medical equipment, and precision instruments have particularly stringent requirements for voltage quality; even minor fluctuations can affect product quality or equipment operation.

dynamic voltage stabilizer employs power electronics technology to respond to system disturbances by monitoring the grid voltage status in real time. When abnormal fluctuations occur in the power grid, the control system within dynamic voltage stabilizer for home initiates a compensation procedure within milliseconds. By injecting compensation voltage, the voltage source output can offset the power system disturbance, thereby maintaining a stable voltage level at the load end.

The dynamic voltage regulator uses a combination of a compressed energy storage system and a power converter. When a voltage disturbance is detected, the energy storage device immediately releases energy, and the three-phase bridge inverter converts the DC power into AC compensation voltage. Through a series injection transformer, the compensation voltage is superimposed with the grid voltage in terms of amplitude and phase, keeping the load-side voltage within the rated range and ensuring uninterrupted power supply.