power electronics
VDM25000 Naval Marine Drive
GE’s medium voltage VDM25000 drive is a modular, multiphase naval marine drive, fully shock-rated and available as direct sea water or fresh-water cooled.
PROVEN TECHNOLOGY
• Operational excellence for over a decade in naval ships’ electric grids of up to 110 MW, providing electric ship power and propulsion.
• Proven to energize mission capability on the latest generation of naval platforms, including aircraft carriers (QE Class) and destroyers (Type 45, DDG1000) and powering land-based test and emulation platforms (US Navy ITF; MPTF).
• Full load torque at all speeds when motoring.
• Build-to-print configuration enabling manufacture at GE and partner sites
Compact Configuration:
- Medium voltage (MV) transformer-less connection; smooth operation with marine electrical power systems in 50 Hz or 60 Hz power networks.
- Compact and modular configuration and construction with easily removable modular items for improved maintainability and reliability.
- Interchangeable building blocks –supply and machine bridge modules.
- Enhanced internal cooling to improve compactness.
- Easy serviceability; front access, easy replacement of modules without water leakage
Low Noise
- Powerful controller for low noise & vibration signature & communication with ship systems
- Smooth output voltage waveforms from each converter phase before reaching the motor windings.
- Bespoke converter circuit for each motor phase for smooth waveform and low EMC.
High Redundancy
- Flexible, resilient multi-phase architecture and independent multi-channel arrangement with high redundancy.
- Shock rated, validated by detailed analysis.
- Key part of Ship’s Electric Grid, enabling flexible design layout for improved survivability.
PWM voltage source inverter
- Able to operate on 1, 2 or 3 and more channels.
- Independent converter channels per group of motor windings
- Bi-directional speed regulated drive with dynamic braking
- Isolation of voltage disturbances created from the ship’s supply by each channel.
- Compensates for ship’s supply fluctuations.
- Protects ship’s supply from converter disturbances.
Power Electronics portfolio
LV7 Industry Drives
Engineered drive solutions for coordinated drive and complex control applications
More Info
LV8 High Performance Modular LV Drives
High performance modular drive for industrial applications
More info
MM7 Modular Multilevel Drives
Modular multilevel converter for various applications, based on proven and mature MV7 technology
More Info
MV3000 AFE
GE’s structured active front end (AFE),low voltage drive, available with air or water-cooled configuration for high performance electric and hybrid-electric naval ship power and propulsion
More Info
MV6 Low Power Variable Frequency Drives (VSI)
Flexible general purpose medium voltage drive
More Info
MV7 Variable Frequency Drives (VSI)
Medium voltage, medium power drive technology for efficient and flexible power control
More Info
Powersemi Thyristor Based Converters
High industry standard Powersemi for various applications
More Info
SD7000 Drives (LCI)
Drive technology delivering efficient and flexible control of electric power
