绿色建筑中热电联供型微网的优化设计与运行

摘要

针对天津市某绿色建筑的热电联供系统，首先建立含电、热负荷并与电网连接的系统模型，该模型包括微型燃气轮机、光伏、储能装置；然后以规划期总成本净现值最小为优化目标进行优化设计，对天然气价格、电价和负荷变化进行敏感性分析；对系统各发电单元运行情况和系统配置方案的经济性进行分析。%A system model which contains electric and thermal load and connects to power grid is established for the combined heat and power system of a green building in Tianjin City; such model includes micro gas turbine, PV and energy storing device. Then, optimal design is conducted with the optimal objective of minimizing the net present value of total cost in planning period;sensitivity analysis is conducted for changes of natural gas price, electricity price and load; the operation of each generation unit of system and the economic efficiency of configuration scheme of system are also analyzed.