Reliable and failure-tolerant power-maximising electrical energy generation system
|532 - Abstract of the offer:|
|The European Space Agency (ESA) presents a novel power-maximising electrical energy generation system. The technology has been successfully tested on solar generators of spacecraft, but it is equally applicable to any energy generation system, and in particular to systems that include a standby battery, when it is required to maximise generation efficiency in combination with modular design and high reliability. The organisation is seeking partners interested in licensing the technology.|
Description of the offer:
In some cases even after the failure of a random converter module you want the delivered power, e.g. from a solar panel, to keep the same capability. This problem is addressed by this technology; an assembly of the solar module and of the converter modules which maintain full power capability after failure of one module. The current generators are connected in parallel and connected to a common load via DC voltage converters, as well as a regulator for varying the transconductances of the voltage converters. The regulator is what maximises the power generated by the current generators. Innovative topology ensures an automatic takeover by a module of any of the other modules which fails.
Only a few additional components (diodes and capacitor) are needed to bring in an additional module in the network. Also, if the failed module is replaced, it can become active again and the replacement resumes its back-up role.
Innovations and advantages:
Modular power systems have several advantages, especially for commercial application:
The size of the overall system can be achieved by scaling up a number of solar panel modules, each of them serve by a dedicated converter module. The output of all these converter modules feeds the load. You can thus design a standard solar panel module and a standard converter module that you assemble with the right number to achieve the required output power. If one of these modules fail, there is soft degradation and you would lose only 1/N of the power if you had N modules. The specific technology ensures that even after the failure of a random converter module the delivered power remains the same.
The system provides modular integration and verification and easy detection of assembly errors.
Domain of Application:
Energy generation systems, especially those including some form of a standby battery. Particular emphasis on resilience and failure tolerance.
- Electronic Components
- Solar energy
- Energy management
- Power transmission equipment (including generators and motors)
Last update: 15 January 2013