1. Variable-frequency drives can adjust the power of motors, enabling variable-speed operation, thereby achieving energy-saving goals. This is exemplified in centrifugal fans and pumps, where the use of variable-frequency drives allows operators to easily control flow rates as needed, thus saving energy.

2. Inverters can reduce fluctuations in voltage within power lines, preventing the occurrence of tripping or abnormal operation of equipment in the event of voltage anomalies.

3. Variable-frequency drives can reduce the impact on the power grid, thereby effectively reducing reactive power loss and increasing the effective power of the grid.

4. Variable frequency drives also reduce wear between the transmission components of machinery, thereby lowering costs to some extent and improving system stability.

Additionally, the transformer's control function is highly comprehensive, allowing for excellent coordination with other control devices or in tandem, thereby achieving centralized monitoring and real-time control, solving many compatibility issues and more for users.