含干热岩区域综合能源系统日前优化调度

Day-ahead Optimal Scheduling of Regional Integrated Energy System Containing Hot Dry Rock

为了研究干热岩增强地热系统的发电性能和潜力,建立含干热岩综合能源系统的优化调度模型。首先,依据干热岩对流换热和有机朗肯循环发电机理,建立干热岩增强地热系统运行模型,为含干热岩区域综合能源系统的运行和规划提供模型基础;其次,针对系统调度中的风电、光伏不确定性波动,基于模糊信息间隙决策理论对不确定性半径和调度成本进行协同优化,从风险规避和机会寻取两方面量化系统不确定性波动变化范围,并评估相应的风险损失和机会收益;最后,通过算例仿真验证所提模型的有效性。

To study the power generation performance and potential of a hot dry rock-enhanced geothermal system(HDR-EGS),an optimal scheduling model for an integrated energy system(IES)containing hot dry rock is established in this paper.Firstly,an operating model of HDR-EGS is built according to the mechanism of convective heat transfer of hot dry rock and the mechanism of organic Rankine cycle power generation,which provides the model basis for the operation and planning of a regional IES containing hot dry rock.Secondly,aimed at the uncertain fluctuations of wind power and photovoltaic in system scheduling,the collaborative optimization of uncertainty radius and scheduling cost is carried out based on the fuzzy-information gap decision theory.The fluctuation range of system uncertainty is quantified from two aspects of risk averse and opportunity seeking,and the corresponding risk loss and opportunity gain are evaluated.Finally,the effectiveness of the proposed model is verified by a numerical example.