基于模糊层次分析法-粒子群优化模型的浅层地热能适宜性区划研究

SHALLOW GEOTHERMAL ENERGY SUITABILITY ZONING BASED ON FUZZY ANALYTIC HIERARCHY PROCESS-PARTICLE SWARM OPTIMIZATION MODEL

利用基于模糊一致矩阵的模糊层次分析法(FAHP)建立浅层地热能评价模型,将结果的一致性检验与修正过程整合为非线性规划问题,并通过粒子群算法(PSO)进行优化求解,得到满足一致性要求的权重结果,进而开展敏感度分析,校验指标权重准确性,提高地源热泵适宜性区划评价精度.通过构建4个层次、9个指标的评价体系,根据获得的权重值开展大连地区浅层地热能适宜性分区评价,为浅层地热能资源储量和潜力评价提供基础,也为浅层地热能可持续开发利用提供理论依据.评价结果表明,适宜性区划模型和指标权重值可靠,适宜区分布于研究区东部钻石湾、东港一带,面积32.87 km^(2),占评价总面积的4.45%,较适宜区分布于北部甘井子区,面积247.21 km^(2),占评价总面积的33.47%.

The paper establishes the evaluation model of shallow geothermal energy by fuzzy consistent matrix-based fuzzy analytic hierarchy process(FAHP),integrating the consistency testing and correction of the results into a nonlinear programming problem,using particle swarm optimization(PSO)for optimization solution and getting the weight results that meet the consistency requirements,and then checking the accuracy of index weights through sensitivity analysis to improve the accuracy of ground source heat pump suitability zoning evaluation.By constructing an evaluation system with 4 levels and 9 indicators,the suitability zoning evaluation of shallow geothermal energy in Dalian area is carried out according to the weight values obtained,which provides a research foundation for the shallow geothermal energy resource reserves and potential evaluation,and theoretical basis for its sustainable development and utilization as well.The results show that the suitability zoning model and index weight values are reliable.The suitable area is distributed in Diamond Bay and Donggang district in the east of the study area,with an area of 32.87 km^(2),accounting for 4.45%of the total assessed area,while the less suitable area is distributed in Ganjingzi district in the north,with an area of 247.21 km^(2),accounting for 33.47%of the total assessed area.