Storage systems are key to the hybrid off-grid installations as they are balancing load requirements in decentralized area with the electricity supply from different renewable power sources.
The storage converters hereby operate in voltage- and frequency-control mode.
Together with the battery storage, the converters ensure that both voltage and frequency of the microgrid is being kept well within its target limits. Converters hereby have to balance rapid variations of generator output or its connected loads like pumps or lightning.
The Convert SC Flex storage converters systems are also used to black start the complete micro- grid in the event of any unforeseen interruption.
Phase-1 of the Kano off-grid project, funded by the Nigerian government, is designed to supply electricity to nine university complexes and a teaching hospital. Two further phases are planned, to be funded respectively by the World Bank and the African Development Bank.
In total over 55000 students and more than 3000 staff at the universities get access to green energy via the programm. In addition, some 2850 streetlights can also be powered by the hybrid micro-grid.
Micro-grid now “proven in the field”
Andreas Becker, Head of Grid & Storage inside AEG Power Solutions, said the off-grid features of Convert SC Flex made it easy to combine with any type of batteries This combination made the system “perfectly suited for micro-grid applications,” he said, pointing out this is “now proven in the field.”
Dutch-German AEG Power Solutions has decades of experience with UPS and power electronics, and grid integration of various power sources and energy storage. The company’s engineering capacities can bridge both AC and DC power technologies.