The ship energy - saving technology of variable frequency is a technical solution that adjusts the motor speed of the ship's electrical system or propulsion system through a Variable Frequency Drive (VFD) to achieve energy - on - demand supply, thereby significantly reducing energy consumption. Dynamic speed regulation: Adjust the motor speed in real - time according to the load demand (such as pumps and fans) to avoid energy waste caused by constant - speed operation.

Soft start: Reduce the current impact during equipment startup and extend the motor life.

Applicable scenarios

Electrical system: Ship auxiliary machines (seawater pumps, cooling pumps, fans, etc.)

Typical case

Variable frequency of pump group on China Ocean Shipping bulk carrier:

After the seawater pump is controlled by variable frequency, each ship saves about 200,000 kWh of electricity per year (verified by CCS).