摘要
随着社会的进步,越来越多的可再生能源开始应用于农业生产。在水产养殖测试基站中引入太阳能光伏发电系统,同时为确保系统在野外环境下的可靠供电,提出一种新型的MPPT跟踪方法。该方法针对扰动观察法存在的最大功率点附近震荡问题引入变步长参数,使系统能够快速跟踪到最大功率点,并在最大功率点附近稳定运行;针对因环境变化剧烈造成的错误跟踪情况,引入功率预测法,使系统具有较好的动态性能。最后在仿真环境下对该方法进行验证,结果表明:新型的MPPT跟踪方法具有较快的跟踪速度与较高的稳态精度,能够适应复杂的工作环境。
With the improvement of the society,more and more renewable energy is applied to agricultural production.Solar photovoltaic power generation systems are introduced into aquatic observation base stations.In order to ensure reliable power supply in the field,a new MPPT tracking method is proposed in this article.In this method,in view of the problem of turbulence near the maximum power point,a variable step size parameter is introduced,which enables the system to quickly track the maximum power point and run stably near the maximum power point.Aiming at the error tracking caused by severe environmental changes,power prediction is introduced.Thus,the system has better dynamic performance.Finally,the new method is verified in the simulation environment.Results show that the new MPPT tracking method has faster tracking,higher steady-state accuracy,which proves the method can adapt to the complex working environment.
作者
冯佩云
冯俊青
段小汇
FENG Pei-yun;FENG Jun-qing;DUAN Xiao-hui(School of Electrical Engineering, Yancheng Institute of Technology,Yancheng 224001, China)
出处
《软件导刊》
2018年第12期173-176,181,共5页
Software Guide
关键词
光伏发电
最大功率点跟踪
功率预测
变步长
photovoltaic power generation
maximum power point tracking
power prediction
variable step size
