Praxis Automation Technology System / Package

Mega-Guard Energy Management System

Name: Mega-Guard Energy Management System
Brand: Praxis Automation Technology

Mega-Guard EMS controlling energy source selection, power limits and battery charging for full electric, serial hybrid and parallel hybrid ship propulsion over a redundant Ethernet network.

Description

The Mega-Guard Energy Management System (EMS) from Praxis Automation Technology is the control core of a Mega-Guard electric propulsion installation. It selects electric energy sources automatically in full electric, serial hybrid and parallel hybrid configurations.

Key features

Limits power to the electric propulsion motors to avoid overloading the energy storage and/or DC bus generators
Controls battery charging from DC bus generators or shore power
Redundant Ethernet connection to Mega-Guard high power inverters (propulsion motor, steerable POD, DC bus generator, AC grid generation, shore power, DC/DC and electric fin stabilizer drives) and to energy storage with built-in BMS
Independent EMS per propulsion side (portside and starboard), each with a 5.7" touchscreen operator panel with built-in controller and mode selection pushbuttons
Project-specific control strategy programmed in IEC 61131
Operator panel in metal-front (commercial ships) or glass-front (mega yachts) versions

Integration

Works with the Mega-Guard Propulsion Control System, which automates bridge remote control of electric propulsion motors and, in parallel hybrid plants, the combustion engine with automatic changeover
Can be extended with Mega-Guard vessel management, power management, fire alarm, navigation, heading control, dynamic positioning and other systems

OceanGlide

Alfa Laval OceanGlide fluidic air lubrication system creates an even, controllable air layer across a ship's flat bottom to cut hull friction and propulsion power; fuel savings up to 10% reported on M/V Tharsis.

Equipment

Konrad Marine

Konrad Stern Drive Product Line (500, 600 and 600B Series)

Konrad Marine 500, 600 and 600B series stern drives for working and high-speed boats: models 520, 540, 560, 620, 660, 680, 620B, 660B and 680B.

Equipment

Everllence

Alpha Fixed Pitch Propellers

Alpha fixed pitch propellers for ocean-going vessels on long-haul service near the design point, as well as smaller yachts and workboats; low hub-to-propeller diameter ratio and few wearing parts.