Charging generator

Overview
Baumüller provides modular hybrid ship propulsion systems that combine combustion generators and electric motors for newbuilds and retrofits. Solutions target reduced NOx and pollutant emissions, lower fuel consumption and improved operational flexibility for shipyards, system integrators and shipowners.

Ecological and fuel-efficient hybrid operation
Combining diesel or methanol generators with electric motors allows generators to operate at steady, optimal efficiency instead of following propulsion power peaks. This enables smaller generator sizing and measurable fuel savings, leading to lower pollutant emissions.

Hybrid modes
Two principal architectures are used to combine electric motors and generators:

• Parallel hybrid: Electric motor and generator are synchronised to deliver full power together.
• Serial hybrid: The electric motor provides propulsion while the combustion engine runs at high efficiency to drive a generator that supplies the electrical system.

Possible generators and energy sources

• Methanol (variable-speed)
• LNG
• H2 burner
• Fuel cells
• Solar arrays
• Batteries
• Skysails
• Shore power

Optimal maneuverability and reduced noise
Electric motors deliver immediate torque and precise speed control, improving responsiveness and manoeuvrability. Hybrid systems also reduce the number and load cycles of diesel engines, lowering noise levels and improving ride comfort.

Batteries and energy storage
Excess or regenerated energy can be stored in battery systems instead of being lost. Batteries absorb power peaks so generators do not need to cover transient demand and can enable limited fully electric operation (green mode). Batteries are installed in a dedicated battery room.

Engineering, hardware and service
Beyond drives, Baumüller offers project planning, control systems, service concepts, maintenance, repair and retrofit services, acting as a lifecycle partner for marine propulsion systems.

Our complete package with partners includes

• Actual state measurement
• Design and system engineering
• Offer and funding request support
• Conversion at shipyard (retrofit)
• Commissioning
• Funding verification by institute

References and solutions
Reference projects include hybrid ferries and other marine installations that demonstrate system integration and hybrid technology applications.

Our motors for ship drives

• DST2 ship motors (high-torque)
• DS2 main drives (synchronous)

Our controls for ship drives

• Control platforms and automation solutions for propulsion and energy management

Our marine service

• Marine service including maintenance, repair and retrofitting of electrical drive systems

Technical characteristics / specifications

• Product type: Modular hybrid ship propulsion systems combining combustion generators and electric motors
• Hybrid modes: Parallel hybrid and serial hybrid
• Supported generators/energy sources: Methanol (variable-speed), LNG, H2 burner, fuel cell, solar, shore power, Skysails, batteries
• Electric motors: DST2 ship motors, DS2 main drives (synchronous)
• Energy storage: Dedicated battery room for peak shaving and limited full-electric operation
• Key benefits: Reduced fuel consumption, lower emissions (including NOx), improved manoeuvrability, reduced noise
• Services: Project planning, design, retrofit, commissioning, funding support and verification, after-sales service
• Applications: Newbuilds and retrofits for ferries and other ship types