A solar array requires a Global maximum power point tracking (GMPPT) technique in a partially shaded state owing to the output characteristics of the solar module. Conventional algorithms such as the Perturb and observe technique do not follow the Global maximum power point (GMPP) in a partially shaded solar array. The GMPPT technique, developed to compensate for the shortcomings of existing techniques, can find the global maximum power point under partial shading, but it is necessary to find a new GMPP owing to changes in solar irradiation during operation in GMPP. In this paper, a new GMPPT technique is proposed to enable fast and accurate tracking of GMPPs in the case of solar radiation fluctuations during operation in a GMPP. The proposed control technique was validated through simulation and experiments by constructing a 2 kW solar system.

由于太阳能模块的输出特性，太阳能电池阵列需要在部分阴影状态下使用全球最大功率点跟踪 (GMPPT) 技术。常规算法（例如扰动和观察技术）不遵循部分阴影太阳能电池阵列中的全局最大功率点 (GMPP)。GMPPT技术是为弥补现有技术的不足而发展起来的，可以在局部遮光下找到全局最大功率点，但由于GMPP运行过程中太阳辐射的变化，需要寻找新的GMPP。在本文中，提出了一种新的 GMPPT 技术，以在 GMPP 运行期间太阳辐射波动的情况下快速准确地跟踪 GMPP。通过构建 2 kW 太阳能系统的模拟和实验验证了所提出的控制技术。