DC-DC Converters

Creative Power's range of DC-DC converters has expanded with the introduction of the 5kW and 15kW models. These DC-DC Converter Modules provide a fixed output voltage for interfacing with a grid connected inverter. They accept a variable input source, such as from a Hydrogen Fuel Cell.

These 2 items are available as custom orders from Creative Power and can be tailored to suit your overall systems

 

In addition to these current projects, Creative Power specializes in the development of custom product solutions to meet specific customer requirements. Utilising Creative Power's extensive "building blocks" of controllers and power stage experience, Creative Power can design and construct custom products. CPT is certain that we can provide you with a solution to your problems.

Previous Creative Power developments include a range of University Research platforms, listed under Legacy below. Each of these bi-directional products enabled exploration of specific aspects of a bi-directional converter. From these developments and utilising Creative Power 80 years of combined experience Creative Power can develop both uni-directional AND bi-directional solutions.

5kW DC-DC Converter (Hydrogen Fuel Cell Compatible)

  • Input Voltage: 30 - 60VDC
  • Input Current: 85A (limited)
  • Output Voltage: 550 - 700VDC
  • Rated Power: 5kW
  • Efficiency: >93%
  • Galvanic Isolation
  • Current Limited
  • Output Voltage Regulated
  • Water Cooled
  • Uni-directional Power Flow
  • Parallelable
  • Hydrogen Fuel Cell Compatible
  • Grid-Connected Inverters Compatible
5kW-DC-DC-Per

The 5kW DC-DC Converter Module operates from a Hydrogen Fuel Cell 30V - 60V DC output, or from an equivalent DC source. The Converter produces an isolated nominal 650V DC bus output that can directly drive into a 1-Phase or 3-Phase Grid Connected Inverter.

Power flow is uni-directional. The DC Module is galvanically isolated. All control signals are fully isolated. The system is water cooled.

The Unit is in a 19" rack compatible 3U high package

Communications is available via an isolated CAN interface, which provides access to status and parameter setting. This interface has security protection

15kW DC-DC Converter (Hydrogen Fuel Cell Compatible)

  • Input Voltage: 60 - 120VDC
  • Input Current: 250A (limited)
  • Output Voltage: 550 - 700VDC
  • Rated Power: 15kW
  • Efficiency: >93%
  • Galvanic Isolation
  • Current Limited
  • Output Voltage Regulated
  • Water Cooled
  • Uni-directional Power Flow
  • Parallelable
  • Hydrogen Fuel Cell Compatible
  • Grid-Connected Inverters Compatible
15kW-DC-DC-Per

The 15kW DC-DC Converter Module operates from a Hydrogen Fuel Cell 60V - 120V DC output, or from an equivalent DC source. The Converter produces an isolated nominal 650V DC bus output that can directly drive into a 3-Phase Grid Connected Inverter.

Power flow is uni-directional. The DC Module is galvanically isolated. All control signals are fully isolated. The system is water cooled.

Power flow in this system is uni-directional. The DC Module is galvanically isolated. All control signals are fully isolated. The system is water cooled.

The Unit is in a 19" rack compatible 3U high package

Communications is available via an isolated CAN interface, which provides access to status and parameter setting. This interface has security protection

-:- Legacy Example - 2.5kW Bi-Directional Battery Charger

5kW BIBC
  • Battery Voltage: 40 - 65VDC
  • Battery Current: 50A
  • High Voltage: 550 - 750VDC
  • Rated Power: 2.5kW
  • Efficiency: >93%
  • Galvanic Isolation
  • Fan Forced Cooled
  • Bi-directional Power Flow

The 2.5kW Bi-directional Battery Charger Module project was designed to interface a Vanadium Flow Battery System with a distributed DC bus. Power flow was required in both directions to ensure that recharging of the Vanadium Flow Batteries was possible.

This system could also operate directly with a 5kW Grid Connected Inverter.

The battery voltage side operated over a 40 - 65VDC range with an isolated high voltage side of 550 - 750 V DC.

The unit was packaged in a Research Friendly 19" open frame construction, which readily allows easy access to the switching modules.

An isolated RS485 MODBUS communications interface was provided to enable control of the overall distributed power system to be managed at an system level. The Battery Charger operated in a Current Mode by default. The communications interface provided control over real power flow (+/-), as well as setting of absolute charging/discharging limits.

Creative Power can design/develop equivalent technology utilising the advances in the field of bi-directional dc-dc converters, which includes their basic control and design construction improvements, that have occurred over the 10 years since this first system was developed.

-:- Legacy Example - 5kW Bi-Directional Battery Charger

5kW BIBC
  • Battery Voltage: 320 - 445VDC
  • Battery Current: 15A
  • High Voltage: 550 - 750VDC
  • Rated Power: 5kW
  • Efficiency: >93%
  • Galvanic Isolation
  • Fan Forced Cooled
  • Bi-directional Power Flow

The 5kW Bi-directional Battery Charger Module project was designed to interface a Lead Acid Battery Bank System with a distributed DC bus. Power flow was required in both directions to ensure that recharging of the Batteries was possible.

This system could also operate directly with a 5kW Grid Connected Inverter.

The battery voltage side operated over a 320 - 445VDC range with an isolated high voltage side of 550 - 750 V DC.

The unit was packaged in a Research Friendly 19" open frame construction, which readily allows easy access to the switching modules.

An isolated RS485 MODBUS communications interface was provided to enable control of the overall distributed power system to be managed at an system level. The Battery Charger operated in a Current Mode by default. The communications interface provided control over real power flow (+/-), as well as setting of absolute charging/discharging limits.

Creative Power can design/develop equivalent technology utilising the advances in the field of bi-directional dc-dc converters, which includes their basic control and design construction improvements, that have occurred over the 10 years since this first system was developed.