期刊名称：International Journal of Soft Computing & Engineering
电子版ISSN：2231-2307
出版年度：2012
卷号：2
期号：5
页码：87-94
出版社：International Journal of Soft Computing & Engineering
摘要：In this paper, a fuzzy logic control (FLC) is Proposed to control the maximum power point tracking (MPPT) for a photovoltaic (PV) system and to control the maximum power point for a wind turbine (WT) system. Hybrid integrated topology, fed by photovoltaic (PV) and wind turbine (WT) sources and suitable for distributed generation applications, is proposed. It works as an uninterruptible power source that is able to feed a certain minimum amount of power into the grid under all conditions. PV is used as the primary source of power operating near maximum power point (MPP), with the WT section (block), acting as a current source, feeding only the deficit power. The unique “integrated” approach obviates the need for dedicated communication between the two sources for coordination and eliminates the use of a separate, conventional dc/dc boost converter stage required for PV power processing. The conventional boost converter decreases the efficiency because of hard switching, which generates losses when the switches are turned on/off. During this interval, all switches in the adopted circuit perform zero-current switching by the resonant inductor at turn-on, and zero-voltage switching by the resonant capacitor at turn-off. This switching pattern can reduce the switching losses, voltage and current stress of the switching device. The Hybrid systems have been simulated in MATLAB Simulink software and their Control Schemes have been analyzed and validated.
关键词：Photovoltaic (PV) systems; Wind Turbine;(WT); Fuzzy Logic Controller; Boost Converter; single phase;inverter; Triggering Pulses; Perturb and Observe (P&O).
