基于MPPT棉花滴灌无线控制光伏供电系统的优化设计

发布时间：2018-01-19 04:18

本文关键词： 棉花滴灌无线控制光伏供电最大功率点跟踪(MPPT) 扰动观察法　出处：《石河子大学学报(自然科学版)》2016年06期 　论文类型：期刊论文

【摘要】：本文针对新疆兵团棉花滴灌无线控制系统研究其适用的光伏供电系统。通过分析光伏阵列及供电系统特性发现其输出性能受光照强度和温度的影响较大,导致功率输出不稳定。为使供电系统高效稳定运行,引进最大功率点跟踪(MPPT)控制算法,对常用算法的优缺点进行分析,采用固定电压法和变步长扰动观察法相结合的改进型扰动观察法对供电系统进行优化设计,并利用Matlab/Simulink对改进后的光伏供电系统进行建模与仿真,验证该算法的可行性。仿真分析结果表明:优化后的光伏供电系统响应速度快,功率输出稳定,能保证棉花滴灌无线控制系统的可靠运行,说明该系统具有较好的使用价值。
[Abstract]:In this paper, the suitable photovoltaic power supply system for Xinjiang Bingtuan cotton drip irrigation wireless control system is studied. By analyzing the characteristics of photovoltaic array and power supply system, it is found that its output performance is greatly affected by light intensity and temperature. In order to make the power supply system run efficiently and stably, the maximum power point tracking (MPPTT) control algorithm is introduced, and the advantages and disadvantages of the common algorithms are analyzed. The improved disturbance observation method, which combines the fixed voltage method and the variable step perturbation observation method, is used to optimize the design of the power supply system. The improved photovoltaic power supply system is modeled and simulated by Matlab/Simulink. The simulation results show that the optimized photovoltaic power supply system has fast response speed, stable power output, and can ensure the reliable operation of cotton drip irrigation wireless control system. It shows that the system has better use value.
【作者单位】：石河子大学机械电气工程学院;
【基金】：新疆兵团科技支疆项目(2015AB024)
【分类号】：S562;S275.6;TM615
【正文快照】： 由于新疆兵团棉田面积大、分布范围广,滴灌控制系统有线供电成本高,利用新疆地区丰富的太阳能资源与有限的水资源相结合,发展低能耗的光伏供电无线滴灌控制技术势在必行[1-2]。因常规光伏供电系统中光伏阵列输出特性受光照强度、环境温度和负载的变化而变化,光伏阵列输出功率

【参考文献】