以常规燃煤机组为原型，提出新的槽式太阳能与燃煤机组集成发电方式，即槽式太阳能集热场加热小汽轮机排汽，取代部分1号高压加热器回热抽汽。利用模拟软件建立发电系统计算模型，分析太阳能辐射强度（DNI）和集热面积对该系统性能的影响。以动态投资回收期TDP、内部收益率IRR等为评价指标，对该系统进行经济性分析。结果表明：随着太阳能幅射强度的增大，互补发电系统的太阳能发电功率、太阳能热电转换率等随之增大，且集热面积的影响趋势与太阳能幅射强度（DNI）大致相同；在拉萨地区进行该系统建设的IRR最高，为16.97%；对IRR的敏感性影响因素从大到小排序依次为煤炭价格、集热器造价和并网电价。

Taking the conventional coalfired unit as the prototype，this paper puts forward a new integrated power generation mode of trough solar energy and coalfired unit，that is，after the trough solar energy heat collector heats the exhaust steam of small steam turbine，it replaces the partial regenerative extraction steam of No. 1 highpressure heater. The calculation model of power generation system is established by simulation software，and the influence of solar radiation intensity (DNI) and heat collection area on the system performance is analyzed.Taking dynamic investment payback period (TDP) and internal rate of return (IRR) as evaluation indexes，this paper makes an economic analysis of the system. The results show that with the increase of DNI，the solar electricitygeneration power and solar thermoelectric conversion rate of the complementary power generation system increase，and the influence trend of the heat collection area is roughly the same as that of DNI. At the same time，the construction of the system in Lhasa has the maximum IRR value of 16.97%. The sensitive impact factors of IRR are coal price，heat collector cost and gridconnected electricity price in descending order.

TK221

基于两区模型的压气机叶轮轮缘曲率及出口结构多目标优化研究（LJKZ0367）