Hybrid Shaft Generator

Hybrid Shaft Generator – Sustainable Marine Power Solutions

Shaft Generator Solutions

Hybrid Shaft Generator

The shaft generator connects the vessel’s electrical network via WE Drive. Electrical power is distributed through a combination of AC switchboards and DC power distribution. An Energy Storage System (ESS) is connected to the DC power distribution, allowing fast power response, peak shaving, and dynamic power support.

Technologies Used

• WE Drive®
• Shaft Generator
• Energy Management System
• DC-bus Switchboards with dedicated inverter units

Customer Benefits

• Highest energy efficiency via hybridisation → substantial savings and enhanced competitiveness
• Lower weight and less space consumed by the electrical system
• Increased safety and flexibility
• Preventing blackouts or ship wide power failures

Options

• Energy Storage Solutions
• Shore Power Solution

How it Works

Hybrid Shaft Generator Solution uses all the energy efficient features of a Hybrid Propulsion Machinery plus a ship-wide DC-bus power distribution system. With the DC-bus distributing electrical power to all consumers, energy efficiency is increased by up to 35%. The Hybrid DC Machinery concept includes variable speed Auxiliary Generators and Permanent Magnet technologies for the rotating machines. With the ship-wide DC-bus power distribution fault currents are kept to a minimum thanks to the precise controls of the dedicated inverter units per consumer. The need for large switchboards and bulky transformers are therefore minimised, which means greater savings in space and weight as well as far better total efficiency.

For 4-stroke (medium speed) applications

Hybrid Shaft Generator uses all the energy efficient features of a Hybrid Propulsion Machinery plus a ship-wide DC-bus power distribution system. With the DC-bus distributing electrical power to all consumers, energy efficiency is increased by up to 35%. The Hybrid DC Machinery concept includes variable speed Auxiliary Generators and Permanent Magnet technologies for the rotating machines. With the ship-wide DC-bus power distribution fault currents are kept to a minimum thanks to the precise controls of the dedicated inverter units per consumer. The need for large switchboards and bulky transformers are therefore minimised, which means greater savings in space and weight as well as far better total efficiency.

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.

Hull 0315847, Maran Tankers Management Inc.

• Type155500 dwt Suezmax Tanker
• OwnerMaran Tankers Management Inc., Greece
• SolutionsSolution One PTO with the Direct Drive PM Shaft Generator and Shore Connection
• ShipyardNew Times Shipbuilding Co., Ltd, China

M/V Ireland

• Type68000 dwt SUL Bulk Carriers
• OwnerVulica Shipping, USA
• SolutionsSolution One PTO mode
• ShipyardJiangsu Hantong Ship Heavy Industry, Co., Ltd., China

Latsco Shipping Ltd

• Type87,000 CBM LPG Carrier
• OwnerLatsco Shipping Ltd, Monaco
• SolutionsSolution One with the Direct Drive PM Shaft Generator
• ShipyardHyundai Heavy Industries Co., Ltd, Korea

HHI H3321, General Motors

• Type174,000 CBM LNG Carrier
• OwnerGeneral Motors, America