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Photovoltaic Grid Interfacing System
(2001)
Аннотация
In this work the study of a system for exploitation of the energy
provided from photovoltaic panels is presented. Through this system
the energy is converted, adapted and injected into the electric utility
grid. In this way an amount of electrical energy consumed by one
given customer is produced, having the advantage that it can be installed
easily in the proper place of consumption, dispensing the use of
a transmission system. The current has sinusoidal shape in the system
output, taking as reference the electric grid, obtaining low total
harmonic distortion, thus the quality of the electric energy is preserved.
Moreover, other requirements are achieved, as the galvanic isolation
between the panels and the utility grid, and the protection against
energy failure. The power stages, the control strategy, the systemâs
operation principle, the simulation and experimental results acquired
with the prototype constructed in laboratory are presented.
