Transient Analysis of a Grid-Connected Hybrid Wind-PV System
DOI:
https://doi.org/10.37591/.v6i2.3193Abstract
A new reliable hybrid distributed generation (DG) system based on photovoltaic (PV) and wind driven permanent magnet synchronous generator (PMSG) as sources, with only a boost converter followed by an inverter stage is being developed. The proposed hybrid generator has a PV array being directly connected to the dc link instead of a dc-dc converter. The dc-dc converter varies the dc-link voltage and is placed in between the rectifier fed by the PMSG and the grid-connected inverter. Using current control strategy, the maximum current is extracted from both sources by varying the inverter current. In this scheme, a single dc-dc converter is used instead of multiple converters, thus, reducing the number of conversion stages. For maximum power extraction, we are using new controllers that generate the pulses for the dc-dc converter and the inverter. Simulation results are shown to demonstrate the steady-state and transient analysis of the system.
Keywords: Boost converter, controllers, grid-connected inverter, hybrid distributed generation (DG) system, wind driven PMSG-PV
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