DC-3 Industrial High-Power DC Power Supply for Green Hydrogen Production

DC-3 from AEG Power Solutions fulfills the most stringent power supply requirements for demanding industrial processes: a perfect stability of output voltage for the best current quality and high efficiency performance. In line with the specificities of those processes, power consumption is as close as possible to a sine wave form. DC-3 is based on proven B12 Thyristor Rectifier and IGBT chopper technology which results in a high power factor (> 0.96).

 

Due to the wide output voltage range, load voltages from 50 V up to 1000 V can be achieved with DC-3. The maximum output current of each DC-3 module is 3200 A. Thanks to its modularity and to the capability of interconnecting up to 8 units into one power block, higher power requirements can be easily met.

 

The robust and compact design of the DC-3 enables utilization even in harsh environments. DC-3 supplies demanding industrial processes and meets the grid connection requirements without installing additional power factor correction or harmonic filters. This allows to increase the efficiency and decrease the life cycle costs to combine the highest level of reliability with the best economic results.

Grid-friendly

Conformity to grid norms; Unit operation in line with grid operation goals

Industrial-grade

A robust design crafted for harsh environments and high requirements

Scalability

Parallel operation makes it flexible to adapt the capacity to changing load requirements

TYPE Rectifier
POWER OUTPUT 0-1920 kW
TECHNOLOGY Hybrid: SCR & IGBT
INPUT VOLTAGE 0.4 - 35 kV
PHASES 3-Phase
Benefits
  • Highly reliable process power supply combined with high efficiency
  • High dynamics to supply different types of applications
  • Low Total Costs of Ownership (TCO)
  • High quality DC power supply to increase the life span of DC components
  • Wide range of output voltage due to hybrid technology (SCR & IGBT)
  • Small footprint, especially low cabinet depth for simple container integration
  • DC current or voltage source, depending on the project requirements
  • Fully grid compliant without cost intensive filter elements reduces CAPEX and optimizes OPEX costs
  • Stainless Steel cooling system, allowing use of tap water as cooling liquid
Features
  • High quality and dynamic DC supply
  • High efficiency (99 % peak)
  • High power factor (> 0.96)
  • Low THDi: < 3% for MW systems
  • Project-specific parameter optimization possible
  • Modular Design for multi MW installations
  • Each module operates on its own, n+x redundancy possible
Options include
  • Various communication interfaces
  • Special instrumentation and software
  • Different configurations for water inlet and DC connection possible
High efficiency at different load situations
  • Eco Mode for highly efficient partial load operation
  • Optimized OPEX due to decreased energy losses
  • Optimal system utilization due to combination of Eco Mode and Equipment Care
Parallel operation
  • Up to 8 units of DC-3 with a total max. output of 25.600 A
  • Power frame option for one or two combined units
Input
DC-3 V3.1 / V3.2 / V3.3
Input AC voltage
0,4 - 35 kV
Transformer
External Customized
Power Factor
>0.95 for P >20 % PN
THDi
HV power frame: <7 % @ rated point of operation
System level: <3 % @ rated point of operation
Output
DC-3 V3.1
DC-3 V3.2
DC-3 V3.3
Min. load voltage
50 Vdc
50 Vdc
50 Vdc
Max. load per single unit
550 V I 2.000 A I
1.1 MW
1.000 V I 1.500 A I 1.5 MW
600 V I 3.200 A I 1.92 MW
Max. load parallel operation
550 V I 16.000 A I 8.8 MW
1.000 V I 12.000 A I 12 MW
600 V I 25.600 A I 15.36 MW
Current ripple
< 1 %
< 3%
< 3%
Efficiency @rated point of operation
> 98.5 % @ nominal operation
> 99 % @nominal operation
> 98.5 % @ nominal operation

To increase power density and to allow easier installation on site, a new base frame solution for two DC-3 systems is proposed by AEG Power Solutions. The immediate benefit is that integration is easier in larger systems and it significantly decreases the handling and installation costs on site.

 

The Power Frame option comprises:

  • 2 Modules of DC-3 installed on a single base frame
  • Prewired AC paralleling cabinet, which allows to choose AC connection top or bottom and comprises a synchronization and decoupling choke as well as optional fuse switches or circuit breakers
  • Single base frame allows forklift handling
  • Optional installation of four Power Frames to form a 10 MW Power Block solution
Additional scope of supply
  • Transformer
  • Outdoor solution
  • Busbar
  • AC-LV-Distribution
  • Cooling system
Container / Skid Solution

Both, Power Frame and Power Block, are also available as transformer-rectifier unit (TRU) in a 40ft container or skid solution. Optional MV-switch gear, LV distribution or cooling systems are available.

Input
Power Frame & Power Block
Input AC voltage
0,4 - 35 kV
Transformer
External Customized
Power Factor
>0.96 for P >20 % PN
THDi
HV power frame: <7 % @ rated point of operation
System level: <3 % @ rated point of operation
Output
Power Frame
Power Block
Min. load voltage
50 Vdc
50 Vdc
Max. load per single unit
1.000 V I 6.400 A I
3.8 MW
1.000 V I 25.600 A I
15.36 MW
Current ripple
< 1 %
< 1 %
< 3 %
Efficiency @rated point of operation
> 99 % @ nominal operation
> 99 % @ nominal operation
Communication
  • Various communication interfaces
  • Special instrumentation and software
  • Different configurations for water inlet and DC connection possible
High efficiency at different load situations
  • Eco Mode for highly efficient partial load operation
  • Optimized OPEX due to decreased energy losses
  • Optional system utlliization due to combination of Eco Mode and Equipment Care Mode
Parallel operation
  • 8 units of DC-3 with a total max. output of 25,600 A, higher requirements on request
  • Power frame option for one or two combined units
DC-3 Product Overview Datasheet Download
Green Hydrogen Brochure Download
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