基于建筑物热能流分析的沼–风–光孤立微能网优化调度模型  

Optimal Dispatch Model of Biogas-wind-solar Isolated Multi-energy Micro-grid Based on Thermal Energy Flow Analysis of Buildings

作　　者：谭洪 颜伟[1] 王浩 TAN Hong;YAN Wei;WANG Hao(State Key Laboratory of Power Transmission Equipment&System Security and New Technology(Chongqing University),Shapingba District,Chongqing 400044,China)

机构地区：[1]输配电装备及系统安全与新技术国家重点实验室(重庆大学),重庆市沙坪坝区400044

出　　处：《电网技术》2020年第7期2483-2491,共9页Power System Technology

基　　金：国家自然科学基金项目(51677012)。

摘　　要：针对海岛或偏远山区供电、供热/冷的应用场景,提出分布式沼气-风能-太阳能全可再生能源的微能网模型。根据数据拟合得到沼气产率与温度的关系,并结合土壤温波方程建立沼气产率模型。通过对建筑物热传递过程的详细分析,并考虑到空调新风系统对负荷的影响建立了热负荷模型。考虑到风、光和温度等因素的不确定性,提出日前-实时两阶段协调调度模型。算例仿真表明,所提模型真实反映了建筑物热负荷,能够提高系统供能的可靠性和经济效益。Aiming at the application scenarios of power supply,heating or cooling on islands or in remote mountainous areas,a multi-energy micro-grid model of distributed biogas-wind-solar renewable energy is proposed.A model of biogas production rate is firstly established combining the relationship between biogas yield and temperature given by the data fitting and the soil temperature wave equation.With a detailed thermal energy flow analysis of the buildings a heat load model was established considering the effect of the air conditioning and fresh air system on the load.Due to the uncertainty of wind,light and temperature,a day-ahead and real time two-stage coordinated dispatch model is proposed.Numerical simulations show that the proposed model truly reflects the thermal load of the building and can improve the reliability and economic benefits of the system's energy supply.

关 键 词：沼气 沼–风–光微能网 热能流分析 两阶段协调调度 鲁棒优化 

分 类 号：TM721[电气工程—电力系统及自动化]