Leonardo DRS motor and drive systems provide advantages in flexibility, modularity, and commonality – supporting requirements for growing power efficiency demands and lower emissions on future ships.
We provide solutions for integrated electric drive (IED) and hybrid electric drive (HED) ship propulsion systems. HED arrangements can be gear-mounted or shaft-mounted depending on the ship’s architecture.
Our marine electric propulsion systems are constructed with permanent magnet (PM) technology that is extremely efficient and delivers remarkable power density, impressive durability, and easier maintainability when compared to induction or wound rotor synchronous machines. Any propulsion system that leverages electric drive will lower emissions. However, PM technology is uniquely suited to provide the maximum range of electric drive benefits for ship propulsion and power for ship systems.
During replenishment at sea, the time spent alongside the re-fueling ship puts both ships at greater risk. HED propulsion systems reduce refueling requirements providing more time on station and less time at risk.
IMPROVING EFFICIENCY & EMISSIONS
ADVANCING SURVIVABILITY & FLEXIBLE ARCHITECTURE
REDUCING NOISE & VIBRATION
LOWERING MAINTENANCE COSTS
1.7 MW Shaft-Mounted Hybrid Electric Drive (HED) Motor
For hybrid electric drive architectures requiring a shaft-mounted motor, Leonardo DRS offers power-dense, low speed PM motors with a large air gap that allow for a bearing-less configuration, simplifying the propulsion shaft.
1.5 MW Gear-Mounted Hybrid Electric Drive (HED) Motor
The lightweight, compact size of Leonardo DRS PM motors is ideal for hybrid electric drive architectures requiring a gear-mounted solution.
36.5 MW Integrated Electric Drive (IED) Motor
For full electric drive ship propulsion systems, Leonardo DRS PM motors provide a number of advantages including significant torque density. Our 36.5 MW example is a 50,000 HP machine that is approximately 17 feet square at just over 125 tons and produces more than two million ft. lbs. of torque!
Power-dense 625HP Hybrid Electric Drive (HED) Motor
Selected to provide hybrid electric drive propulsion for the U.S. Coast Guard Offshore Patrol Cutter program, the power-dense, water-cooled PA44 is only 395 lbs. and rated up to 625 HP providing 1,100 ft-lbs. @ 3000 RPM.
Shaft-Mounted Hybrid Electric Drive (HED) Motor Configuration
Lower noise signature than gear-mounted motor.
Gear-Mounted Hybrid Electric Drive (HED) Motor Configuration
Compact arrangement with high shock capability.
Hybrid Electric Demonstration
Our HED solutions deliver advantages in flexibility, modularity and commonality; supporting requirements for fuel savings and growing power efficiency demands on future ships.