The basic function of reactive power compensation is:
1. Improve power factor
By compensating for the reactive power required by inductive loads, reducing the flow of reactive current in the power grid, and increasing the power factor to a reasonable range (usually close to 0.95), the efficiency of the power grid can be optimized.
2. Reduce line and transformer losses
Reducing the transmission of reactive power in the power grid can significantly reduce the active power loss of lines and transformers (loss is proportional to the square of current).
3. Stable voltage quality
Compensation devices can suppress voltage fluctuations caused by reactive power fluctuations, especially when installed at the end of the power grid, ensuring stable voltage at the user end.
4. Optimize power quality
By suppressing harmonics, reducing voltage fluctuations, improving the power quality of the power system, and enhancing the operational stability of electrical equipment.
5. Improve equipment operational efficiency
Reducing reactive power transmission can release more capacity for active power output under the same device capacity, indirectly improving the utilization rate of power generation/supply equipment.
6. Extend the effective distance of power transmission
Reducing reactive power demand can reduce losses in energy transmission, thereby expanding the effective power supply range of the power grid.