基于温差发电两级修正的沼气发电机组废热利用方法与模型构建  

WASTE HEAT UTILIZATION METHOD AND MODEL CONSTRUCTION OF BIOGAS GENERATOR SETS BASED ON TWO-STAGE CORRECTION OF THERMOELECTRIC POWER GENERATION

作　　者：李若兰 魏征 刘畅 高立艾[1,3] 贾宇琛 温鹏 Li Ruolan;Wei Zheng;Liu Chang;Gao Liai;Jia Yuchen;Wen Peng(College of Mechanical and Electrical Engineering,Hebei Agricultural University,Baoding 071001,China;Kechang Electric Co.,Ltd.,Baoding 072550,China;Baoding Key Laboratory of Precision Control and Clean Energy Supply for Facility Agriculture Environment,Baoding 071001,China;College of Information Science and Technology,Hebei Agricultural University,Baoding 071001,China)

机构地区：[1]河北农业大学机电工程学院,保定071001 [2]科畅电气有限公司,保定072550 [3]保定市设施农业环境精准调控与清洁供能重点实验室,保定071001 [4]河北农业大学信息科学技术学院,保定071001

出　　处：《太阳能学报》2024年第12期434-443,共10页Acta Energiae Solaris Sinica

基　　金：河北省教育厅科学技术研究项目(KY2021020,KY2021118)。

摘　　要：为充分利用沼气能源,提高沼气发电能源利用率,提出利用温差发电片对沼气发电机组废热进行回收,利用Matlab/Simulink构建基于温差发电两级修正的沼气发电机组废热回收利用仿真模型,并通过实测数据对模型进行验证。结果表明,两级修正的温差发电模型平均绝对百分比误差(MAPE)为0.045%,二次修正相比于一次修正MAPE降低0.167%;加入温差发电装置后沼气发电系统能源利用率可提升8.59个百分点,废热利用效率可提升15.53个百分点。To make full use of biogas energy and improve the energy utilization rate of biogas power generation,this paper proposes to use thermoelectric generator to recover the waste heat of biogas generator sets.The simulation model of waste heat recovery and utilization of biogas generator sets based on two-stage correction of thermoelectric power generation is constructed by Matlab/Simulink,and the model is verified by measured data.The results show that the mean absolute percentage error(MAPE)of the two-stage modified thermoelectric generation model is 0.045%,and the second correction is 0.167%lower than the first correction mean absolute percentage error(MAPE).After adding the thermoelectric generator,the energy utilization rate of the biogas power generation system can be increased by 8.59 percentages poimt,and the waste heat utilization efficiency can be increased by 15.53 percentages poimt.

关 键 词：沼气 废热 能源利用 温差转换 SIMULINK 两级修正 

分 类 号：TM617[电气工程—电力系统及自动化]