太阳能电池板表面积灰模型仿真研究  

Simulation and Research of Dust Deposition on the Surface of Solar Panels

作　　者：皇甫亚波 杭鲁滨[1] 秦伟[1] 沈铖玮 王君[1] 

机构地区：[1]上海工程技术大学机械工程学院

出　　处：《电网与清洁能源》2016年第4期106-111,125,共7页Power System and Clean Energy

基　　金：国家自然科学基金(NFS51475050);上海市科学技术委员会重点支撑项目(12510501100);上海工程技术大学科技创新项目(E1-0903-14-01013)和(E1-0903-14-01016)~~

摘　　要：太阳能电池板表面灰尘颗粒的沉积严重制约着光伏发电效率,降低了电池板的使用寿命。提出建立灰尘与电池板间耦合关系以及计算清除灰尘作用力的方法;提出3条接触模型等价性假设,并基于离散元与弹塑性理论建立灰尘颗粒与电池板及灰尘颗粒间的力学模型;利用EDEM软件的Hertz-Mindlin with JKR Cohesion模型,仿真模拟电池板表面灰尘分布情况,预测清洗电池板的清洗力大小及清洗区域;分析电池板倾角、风向与电池板和颗粒间作用合力即清洗力的对应关系;为所研制电池板表面积灰清除机器人的清洗力和清洗周期确定提供理论依据。ABSTRACT：The dust deposition on the surface of solar panels not only seriously restricts the power generation efficiency but also reduces the life span of solar panels. In this paper,the coupling relationship between dust and solar panel and a method of calculating the force for dust removal are proposed in this paper. Three hypotheses about contact model of solar panel and dust are presented to satisfy Hertz-Mindlin with JKR Cohesion model,and the mechanical system between dust particles and panels based on Discrete Element Method and Elastoplastic Theory is modeled. The distribution of dust particles on the surface of solar panels is studied by simulating in EDEM software. Furthermore, the size of the cleaning-force and cleaning-area are predicted. The corresponding relationship between tilting angle of the solar panel and cleaning-force and relationship between wind-direction and cleaning-force are analyzed. The research of dust deposition model plays an important role in solar energy power generation system.

关 键 词：太阳能电池板 离散元 力学模型 清洗力 

分 类 号：TM615[电气工程—电力系统及自动化]