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Power Management Systems
A Power Management System (PMS) plays a critical role in ensuring the safe, efficient and reliable operation of a vessel’s electrical power plant. By monitoring power generation, distribution and consumption, a PMS maintains power availability under all operating conditions and prevents blackouts or overload situations.
Subsea Connect delivers Power Management System solutions designed for modern marine operations, suitable for both newbuild and retrofit applications across merchant, cruise and offshore vessels.
Purpose of a Power Management System
A Power Management System continuously supervises the vessel’s electrical network and automatically controls generators, switchboards and consumers to maintain system stability.
- Maintaining power balance between generation and demand
- Preventing overload and blackout situations
- Optimising generator utilisation and efficiency
- Supporting safe operation during normal and abnormal conditions
- Ensuring reliable power availability for critical systems
Subsea Connect PMS solutions are engineered to support these objectives in a predictable and transparent manner.
System Functions
Subsea Connect Power Management Systems typically include the following functions:
Generator Control & Load Sharing
Automatic start, stop and synchronisation of generators, with balanced load sharing to ensure stable operation and efficient use of available power.
Load Monitoring & Control
Continuous monitoring of power consumption with prioritisation of essential consumers. Non-essential loads can be shed automatically to protect the power plant during overload conditions.
Blackout Prevention & Recovery
Continuous monitoring of power consumption with prioritisation of essential consumers. Non-essential loads can be shed automatically to protect the power plant during overload conditions.
Power Distribution Monitoring
Real-time supervision of switchboards, breakers and feeders, providing operators with clear visibility of power system status.
Integration with Vessel Systems
- Propulsion and thruster control systems
- Vessel automation and monitoring systems
- Dynamic Positioning systems, where applicable
- Alarm monitoring and bridge systems
This integration ensures coordinated system behaviour and predictable response during operational changes or fault conditions.
Tailor-Made PMS Solutions
- Diesel-electric, hybrid or conventional power plants
- Number and type of generators
- Switchboard layout and redundancy requirements
- Vessel operational modes and power demand profiles
- Classification and regulatory requirements
System logic and operating modes are configured to align with the vessel’s intended use and operational philosophy.
Retrofit & Modernisation
- Replacement of outdated PMS controllers
- Integration with existing generators and switchboards
- Improved load management and blackout prevention
- Enhanced monitoring and alarm handling
Retrofits are engineered to minimise downtime and can often be implemented during planned maintenance or drydock periods.
Engineering, Commissioning & Support
Subsea Connect provides full lifecycle support for Power Management Systems, including:
- System design and configuration
- Installation and commissioning
- Retrofit project execution
- Testing and verification
- Long-term service and technical support
Our engineers support vessels worldwide, ensuring reliable PMS operation throughout the vessel’s lifecycle.
Reliable Power for Modern Marine Operations
Subsea Connect Power Management Systems provide stable, efficient and reliable control of onboard electrical power. Designed for integration, flexibility and long-term serviceability, our solutions support safe vessel operation under all conditions.
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