| Popis: |
During the development of a wave energy converter (WEC), a test device was laid out at sea. Due to the absence of a grid connection at the test location, an energy storage system (ESS) is designed and implemented as an islanding power supply to test the WEC requiring motoring actions during operation. The ESS comprises long-term battery power supply for the controllers, supercapacitors (SC) for motoring purposes in the WEC, and the supply of auxiliaries. The sizing of the system was carried out on the basis of hydrodynamic simulations of the WEC. We optimized the lifetime of the SC by reducing the voltage working range. Subsequent tests at sea revealed positive evaluation of the ESS. |
