光伏阵列MPPT集中控制与分散控制比较研究

MPPT of PV array comparative study of decentralized control and centralized control

太阳能作为可再生清洁能源,如何提高太阳能利用率,使得光伏电池板输出功率最大至关重要。以往对提高太阳能利用率的研究主要致力于MPPT算法的改进。从光伏电池非线性特性出发,建立光伏电池等效电路模型,搭建光伏电池MPPT集中控制和分散控制系统仿真模型。在光照渐变和光照突变及温度渐变和温度突变情况下,验证了集中控制系统和分散控制系统对输出功率的影响,得到集中控制系统和分散控制系统的控制效果图。

Solar energy was a renewable clean energy. How to improve the utilization rate of solar energy for making photovoltaic panels reach the maximum output power was very important. In the past,improving the utilization rate of solar energy research mainly devoted to improve the MPPT algorithm. The photovoltaic panels equivalent circuit model and photovoltaic panels MPPT centralized control were built, and control system model based on the non-linear characteristics of photovoltaic panels was decentralized. In the case of light gradient or mutation and temperature gradient or mutations, centralized control system and distributed control system had an influence on output power. System’s control effect was obtained.