University of Huelva


Posted by University of HuelvaResponsive · Knowhow and Research output · Spain

Summary of the technology

The converter has an input for connecting a monopolar DC source and a bipolar DC output, with the same voltage but with opposite polarities. It is useful for the connection of a distributed generation system to a bipolar DC grid. For these applications, the proposed topology is a solution with sufficient guarantees of reliability, quality and performance.
The converter circuit is very simple, it includes three inductors, four capacitors, two diodes and a power switch as a switching device.

University of Huelva

Description of the technology

This invention relates to a DC-DC converter capable of generating bipolar voltage with a suitable novel topology for distributed generation connection to a DC bipolar grid. The proposed topology uses only a power switch, unlike other DC-DC converters which employ two or four switches. Thus the complexity of the converter is reduced.
The DC-DC converter with bipolar output has an input for connection to a monopolar DC source and a bipolar output voltage with a positive terminal and a negative terminal. The DC-DC converter includes a power switch (e.g. IGBT transistor, a MOSFET transistor), three, inductors, four capacitors, and two diodes. A snubber circuit can be added for clamping voltage overshoot on the switch.
The DC-DC converter can be applied to bipolar DC grids because it allows the connection of a monopolar DC source to such networks. The present invention is especially applicable in the industrial sector and renewable energies. In the first because this network type is an alternative to classic electric system, currently, of interest special in the industry. In this sector, the proposed converter can control the voltage level and possible unbalances of the DC voltage network. On the other hand, in the renewable energy sector, the proposed scheme enables the connection of generation and storage systems to a bipolar DC network in a way reliably. The proposed topology is a solution for these applications with sufficient guarantees of reliability, quality and performance.


Current development status

Laboratory prototypes

Desired business relationship

Patent licensing

New technology applications

Intellectual property status

Patent already applied for

Technology Owner

University of Huelva

Technology Transfer Office

Additional information (attached documents)

Related keywords

  • Electronics, IT and Telecomms
  • Electronics, Microelectronics
  • Energy Technology
  • Energy Storage and Transport
  • Transmission of electricity

About University of Huelva

Technology Transfer Office from Spain

The Technology Transfer Office (TTO) is a service of the University of Huelva attached to the Vice-chancellor of Research, Postgraduate and International Relations. Its mission is to get companies and institutions in Huelva are scientifically advanced entities, by encouraging close collaboration in R&D between researchers, enterprises, and institution

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