Application of Boost Inverter For Grid Connected Fuel Cell Based Power Generation
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Abstract
The boost inverter architecture is used as a building block in this research to create a single
phase grid connected fuel cell (FC) system with low cost and compactness. In addition, to
support the FC's sluggish dynamics, the proposed system includes battery-based energy
storage and a dc-dc bidirectional converter. The voltage mode of the single phase boost
converter is maintained, but the low frequency current ripple is regulated by the current
mode. The battery provides the low frequency current ripple, which mitigates the impacts of
such ripple pulled straight from the FC. This technology, however, may work in either a
grid-connected or independent mode. In grid linked mode, the boost inverter can regulate the
active (P) and reactive (Q) powers using a second order generalised integrator algorithm that
offers rapid signal conditioning for single phase circuits. At the grid side, we may lower Total
Harmonic Distortion (THD). In addition, we have a backup storage device to accommodate
the sluggish dynamics of the FC sources that are all integrated into one system. To confirm
the performance of the proposed system, a design model and guidelines, simulation, and
experimental findings from a laboratory prototype are available
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