Design Of The Virtual Simulation Experiment System Of Micro-Grid In The Forest Based On Unity3D

Since the 18 th National Congress of the Communist Party of China,the country and government have attached great importance to the development of university laboratories and increased the budget.The Ministry of Education and the Provincial Departments of Education encourage and support universities to build their virtual simulation laboratories.After the 19 th National Congress of the Communist Party of China,to implement the spirit of the 19 th National Congress of the Party and adapt to the new model of teaching,the virtual simulation experiment of teaching has been pushed to a new rank.Especially during the novel coronavirus,students all over the country are studying online,this is a new learning model.After the novel coronavirus,Virtual simulation of teaching will develop well.To combine the characteristics of forestry school with teaching and enrich students' theoretical and practical knowledge.This study will design a virtual simulation experiment system of micro-grid in the forest based on Unity3 D.The virtual simulation experiment system of micro-grid in the forest made up for the defect of the traditional experiment of micro-grid,such as,the limited number of equipment,chaotic order in the lab,low teaching efficiency and unsafe.This system applied virtual reality technology to build a virtual teaching environment as same as scene of experiment in reality.And it was helpful for students to understand knowledge of micro-grid and improve efficiency on experiment.This article completed the following work:(1)This article expound the overall framework of the virtual simulation experiment system of microgrid in the forest,and introduced related development software,such as,Unity3 D and 3ds Max.It focused on the Overall scheme design and functional requirements on virtual simulation experiment system of micro-grid in the forest.(2)The scene and model of the virtual simulation experiment system of the micro-grid in the forest were established and optimized in 3ds Max,these models have the fan,solar panel and the monitoring station of micro-environment in the forest.The scene of the virtual simulation experiment system of the micro-grid in the forest has been built in Unity3 D,including topography,plant,mountain texture,and added special effects to the scene.(3)This article designed the visual part of the virtual simulation experiment system of the microgrid in the forest.the visual system was designed according to the function and technical requirement of the virtual simulation experiment system of micro-grid in the forest.the visual system include the follow-up of wind driven generator,UI interface,multi-visual angle switching technology and following module on camera.To meeting the need of the simulation,all component about wind driven generator have been set by a method of set membership,and the follow-up teaching of the wind driven generator was realized.(4)The virtual simulation experiment system of the micro-grid in the forest was tested.The virtual teaching of splitting and combining function and the movement simulation teaching of wind driven generator were tested.By changing the wind speed,different electric power of the wind driven generator has been obtained,then the virtual simulation teaching of maximum power point tracking was tested,according the algorithm combining the best tip speed ratio method and the three-point comparison method.In the virtual experiment of photovoltaic power generation,according to the different light intensity in the morning,middle and night,the generated electricity was supplied to the monitoring station of microenvironment in the forest and fire observation tower.Thus,the system can get the supply and demand relationship between the power generation of solar panels and load at three different times.