Description

Low-speed through-shaft variable frequency permanent magnet synchronous generator

High-performance solutions for driving marine hybrid power innovation

I. Product Positioning and Core Value
This series of generators is specifically designed for integrated diesel engine power systems in newly built ships. It employs a low-speed through-shaft structure and permanent magnet synchronous technology, combined with high-performance variable frequency control, to achieve efficient coupling and intelligent management of the ship’s power and electrical systems. The unit can be used not only in traditional power generation modes but also deeply integrated into the ship’s hybrid power architecture, driving the transformation of ships towards green, intelligent, and efficient operation.

II. Core Operating Modes and Application Scenarios

1. Main Application Modes

PTO (Power Take-Off) Mode

The diesel engine directly drives the generator through the main shaft flange, providing a stable power supply to the entire ship’s power grid. Suitable for conventional navigation and operational power supply.

PTI (Power Take-In) Mode

The generator is driven in reverse by grid power to operate as an electric motor, directly driving the propeller to achieve electric-assisted propulsion or pure electric navigation. Particularly suitable for low-emission scenarios such as port entry/exit and low-speed cruising.

PTH (Power Take-Hybrid) Mode

The intelligent control system automatically switches between or mixes diesel and electric drive according to navigation needs, achieving optimal power distribution and significantly improving fuel efficiency and maneuverability.

2. Typical Application Scenarios
* Power optimization and energy efficiency improvement for ocean-going freighters, tankers, and container ships
* High-load power support for engineering vessels (dredgers, crane vessels, etc.)
* Power integration systems for hybrid propulsion ships and LNG dual-fuel ships
* Low-vibration, low-noise power quality requirements for high-end cruise ships and research vessels
III. Detailed Explanation of Key Technical Parameters

project	Parameter Description	Advantages and significance
Frame size	H1120 ~ H1400	Covering the power needs of small, medium and large ships, with flexible adaptability
Power range	Up to ~4000 kVA	Meets the power requirements of the main generator and large auxiliary propulsion.
Speed ​​range	Suitable for low-speed operation up to ~150 rpm	Directly matched to the low-speed shaft of the diesel engine, eliminating the need for a gearbox and improving transmission efficiency.
voltage level	Wide range design from 220V to 13.8 kV	Compatible with various shipboard power grid standards, supporting high-voltage grid connection.
Protection level	IP54 / IP55 / IP56（Optional）	Resisting harsh cabin environments such as oil stains, salt spray, and humidity
Installation method	B3（Foot mounting）	The structure is robust and easy to align with the diesel engine for installation.
Cooling system	IC71W（Fully enclosed air-water cooling）	High-efficiency heat dissipation, suitable for continuous operation under high load.
Insulation and Temperature Rise	H/F or F/B grade	High heat-resistant insulation materials extend motor life and improve overload capacity.

IV. Technical Highlights and Competitive Advantages
Permanent Magnet Synchronous Technology

High power density, more compact than traditional electrically excited motors
High efficiency range, significant energy saving
No excitation system required, easy maintenance, high reliability
Through-shaft structure design

Directly connected to the diesel engine output shaft, short transmission path, low mechanical loss
Compact structure, saving engine compartment space
Intelligent Variable Frequency Control System (optional integrated)

Supports grid-connected and off-grid operation modes
Features fast power response and harmonic suppression functions
Optional intelligent energy management system for multi-machine parallel operation and load optimization
High environmental adaptability

High protection level, suitable for complex engine compartment conditions
Insulation system is high temperature resistant and moisture-proof Corrosion resistant, adaptable to global shipping environments

V. Core Value for Customers

Energy Saving and Consumption Reduction: Hybrid power mode can save 10%~25% on fuel, reducing operating costs.

Emission Reduction and Environmental Protection: Reduces emissions of nitrogen oxides, sulfur oxides, and carbon dioxide, meeting IMO environmental regulations.

Flexible Operation: Multiple power modes can be switched, improving ship maneuverability and mission adaptability.

High Reliability: Simplified transmission chain, reduced failure points, and improved overall system reliability.

Future Scalability: Supports integration with energy storage systems and new energy power generation equipment, reserving interfaces for future ship electrification.

Choosing us is not just choosing a generator, but choosing a future-oriented marine hybrid power system solution.

Welcome to contact us for customized technical solutions, case studies, and full lifecycle service support.

Joining hands to drive a new era of green ships!