RELIABLE AND HIGHLY EFFICIENT GRID-CONNECTED HYBRID SYSTEM USING ONLY CONVERTER AND INVERTER
UMAVATHI M Dr.UDHAYAKUMAR K Iswarya K
power electronics in power grids (from mobile phones to smart power grids)
A novel hybrid system using one and only modern DC-DC
converter is being proposed. In this novel system, the gearless wind-driven PMSG and solar-PV sources are coupled to the grid with a support of only CUK converter and a single phase current controlled inverter. There are two controllers present in the system to individually trigger the CUK converter and a single phase current controlled inverter for pursuing the high power from both the renewable energy sources. When compared to previous systems, the proposed system has less switching loss, less voltage stress, more efficient, and reliable. This hybrid system has the advantages of high grid voltage and the current. It can be used for zero-net energy domestic erection applications in a smart grid scenario. The operations of controllers for different sources are obtained and the operations of novel distributed generators for steady state are successfully demonstrated through simulation.
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