Research On Key Technologies Of Micro Energy Grid System For Vegetable Plant Plant In Remote Area

Remote areas such as the plateau and the Gobi suffer from severe cold and lack of oxygen,and the plant growth environment is harsh.Officers and soldiers at border posts and local herdsmen face difficulties in eating vegetables.Container vegetable plant plant is not restricted by the external environment,it can be an effective way to solve the difficult problem of vegetable production under the harsh environment.Since remote areas are far away from the large power grid,they cannot provide the required electric energy for vegetable plant factories.Therefore,it is of important theoretical value and engineering practical significance to study the new energy micro-grid based on photovoltaic and wind power generation to solve the energy supply problem of container vegetable plant factories.Taking the micro-container vegetable plant plant as the research object,according to the unique climatic characteristics of the high cold and high altitude area and the energy demand of the plant plant,the thermoelectric load of the plant plant is selected as the main load,the operation mode of each power load is analyzed,and the thermal load demand is calculated according to the changes in the external environment.The micro-energy network system composed of micro-power grid and heat network is established to supply energy to the plant plant system.Firstly,each subsystem in the micro-energy network is modeled,and the thermal load and electrical load of vegetable plant plant are calculated.Then,according to the characteristics of the climate environment in the plateau region,a PSO-PID photovoltaic maximum power tracking control strategy optimized by annealing algorithm and a wind turbine control strategy based on mountain climbing method were proposed to ensure that the photovoltaic cell array can find and output the maximum power stably under the local shadow shading and the wind speed changing environment,so as to ensure the energy supply stability of the micro-energy network;finally,in order to rationally allocate the capacity of micro-energy network in off-grid vegetable plant plants and improve the reliability of power supply and heat supply of micro-energy network system,a capacity optimization configuration model of micro-energy network including power grid and heat network was constructed.The optimal capacity configuration and operation scheme was sought by taking the system loss-charge rate,loss-temperature rate and operation cost as the objective functions,and the model was solved by improving the SSA algorithm.The Matlab simulation platform is built,and the results show that the proposed annealing algorithm optimized PSO-PID control and mountain climbing method achieve the ideal control effect.At the same time,three typical daily micro-energy networks are selected for simulation analysis.The simulation results show that the model takes into account the economy and the reliability of power supply and heating.