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A novel grid integration scheme for the hybrid electric power generation using solar and wind energy resources

机译：一种利用太阳能和风能资源进行混合发电的新型电网整合方案

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In this paper is reported a novel grid integration scheme for a hybrid electric power generation scheme using Photovoltaic power generation and induction generator based wind power generation. The proposed scheme adopts Fuzzy Logic Control (FLC) for the Maximum Power Point Tracking (MPPT) of the wind turbine driven induction generator and the incremental conductance based MPPT for the solar PV system. The power from the wind source and the photo voltaic source are brought to a common DC link and a DC to AC three phase inverter is used to upload power into the grid and a novel control scheme is adopted for sinusoidal current injection at the point of grid integration. The first novelty of the proposed system is that a variable frequency drive is used to run the induction generator at different synchronous speeds for power generation over a wide wind speed range. The additional novelty of the proposed scheme is that a direct Clark transformation and a set of two PI controllers are used to control the grid integration inverter enabling it to drive grid current with THD levels much less than the allowable limits.
机译：本文报道了一种新颖的电网集成方案，该方案用于基于光伏发电和基于感应发电机的风力发电的混合发电方案。拟议的方案采用模糊逻辑控制（FLC）来控制风力发电机驱动感应发电机的最大功率点（MPPT），并采用基于增量电导的MPPT用于太阳能光伏系统。来自风源和光伏电源的功率被带到公共直流链路，并且使用直流到交流三相逆变器将功率上载到电网中，并且采用新颖的控制方案对电网点处的正弦电流注入一体化。所提出的系统的第一个新颖之处在于，使用变频驱动器以不同的同步速度运行感应发电机，从而在较宽的风速范围内发电。所提出方案的新奇之处在于，采用直接Clark变换和一组两个PI控制器来控制电网集成逆变器，从而使其能够以远低于允许极限的THD水平驱动电网电流。

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