近年来，光伏系统的应用越来越广泛，尤其是在偏远地区，电力供应不足或安装成本太高。然而，光伏发电成本相对较高，且具有非线性相关的辐照伏安特性，使得在需要获得最大功率时难以控制。本文对由光伏发电机、buck变换器和直流电机泵组成的光伏系统的运行情况进行了全面的分析。buck变换器采用基于反馈线性化的非线性控制策略来控制太阳能电池的工作点，以跟踪最大功率点（MPP）。结果表明，该技术能够实现光伏系统的线性控制，并能显著提高系统的动态性能
In recent years, the application of photovoltaic system has been increasingly popular, especially in remote areas, where power is not available or is too expensive to install. However, the PV generator’s cost is relatively high and has nonlinear dependent-irradiation volt-ampere characteristics which make it difficult to control if we need to obtain maximum power. In this paper, the operation of a PV system which comprises a PV generator, a buck converter and a DC motor-pump is thoroughly examined. The buck converter controls the solar array operating point in order to track maximum power point (MPP) by using a non linear control strategy based on feedback linearization. This technique is shown to be able to obtain a linear control of the PV system and can dramatically increase its dynamical performance
资源文件列表
model33.mdl , 63912