AC Electric Propulsion

AC Electric propulsion – wider possibility of hybridisation

Electrification Solutions

AC Electric Propulsion

Utilises main generator running on fixed speed with conventional AC power distribution. AC Electric propulsion combines conventional AC power distribution with, for example, fuel cells and energy storage.

Technologies Used

Permanent Magnet Propulsion Motors
WE Drive™
AC power distribution
DC-bus power distribution system
Energy storage system
Variable Speed Auxiliary Generators

Customer Benefits

Broader freedom for choosing components compared to a conventional solution
Wider possibility of hybridization
Low THD levels because AFE low harmonic drives are used
Permanent magnet propulsion motors for highest efficiency and low maintenance
Reduced weight as no transformer is needed

Options

ESS
Shore power solutions

Solutions Leading Marine Electrification

WE equip your ship for success.

Our solutions build on widely proven technologies and are applicable for most ship types and propulsion machinery (e.g. low speed direct driven propeller with 2-stroke Main Engine, or medium speed reduction gear driven propeller with 4-stroke Main Engine).

WE Tech solutions utilise variable frequency drive technology (WE Drive™), permanent magnet generator technology, DC-bus power distribution and Energy Management System(EMS).

With our domain expertise, you can get a ship with an energy system built the way it should.

WE Drive®

Variable frequency drive technology for generator/motor applications is a compact and robust modular design.

Variable Speed Generator

The variable speed permanent magnet generator is lightweight, and compact-sized with the highest efficiency over the full speed and power range. It is virtually maintenance-free. We also offer solutions based on synchronous and asynchronous generator technology.

Energy Storage Solutions

We use the latest lithium-ion technology from the Energy Storage System (ESS) suppliers. With a DC-DC converter, we integrate the ESS into our solution.

Energy Management System

With the Energy Management System(EMS), we control various operation modes of the ship as well as start/stop sequences, etc. The EMS also interfaces with other control systems on board a ship.

Shore Power Solution

Shore power is conditioned for the vessels’ electrical system via the WE Drive™. Vessels become unaffected by the variations in voltages and frequencies of the national power grids worldwide – shore power is always matching.

Fuel Cell Solution

Fuel Cell Integration via DC/DC conversion to the ship energy efficient power distribution system. Seamless operations utilising Fuel Cells and ESS combinations for zero emission power.

Reference cases

Solutions applied on over 300 vessels worldwide

We have been focusing on lowering emissions for years by providing cost-effective and sustainable lifetime solutions to the shipping industry. Our benchmarking solutions have already been applied to more than 300 vessels worldwide.

M/T Sten Odin

Type17500dwt Chemical Tanker
OwnerRederiet Stenersen AS, Norway
SolutionsSolution Four PTO, PTI, DC-link, ESS with the Direct Drive PM Shaft Generator
ShipyardTaizhou Kouan Shipbuilding Co., Ltd., China

Klaveness Combination Carriers

Type 83400 DWT Bulk Carrier
OwnerKlaveness Combination Carriers
SolutionsPTO 1000 kW @ 45 rpm
Shipyard Yangzijiang Shipbuilding Co., Ltd

HHI H3426, Evalend Shipping Co., S.A.

Type88K CBM LPG Carrier
OwnerEvalend Shipping Co., S.A.
SolutionsSolution One PTO and Solution Three PTI
ShipyardHyundai Heavy Industries Co., Ltd

HHI H8128, Hyundai Glovis Co., Ltd.

Type86,000 CBM LPG Carrier
OwnerHyundai Glovis Co., Ltd., Korea
SolutionsSolution One with the Direct Drive PM Shaft Generator
ShipyardHyundai Heavy Industries Co., Ltd, Korea

PTO Variable Speed Shaft Generator

PTI Take Me Home

PTI Boost

Hybrid Shaft Generator

Explore Shaft Generator Solutions

Electric Propulsion