【摘要】 在构建系统集成模型基础上,阐述光煤混合发电系统变工况性能计算方法。以3个地区、4种容量机组为例,研究地域和容量对光煤互补发电机组的性能变化、节能减排效果和投资回收期的影响规律。结果表明:300 MW机组在不同地区开展光煤互补发电时,太阳能资源丰富地区的机组标准煤节省量最大,污染物减排量最大,投资回收期最短; 4种容量的机组在同一个地区开展光煤互补发电时,容量大的机组标准煤节省量最大,污染物减排量最大,投资回收期最短;光煤互补发电机组可以降低发电煤耗、提高太阳能发电效率。计算方法为燃煤发电机组引入太阳能的技术改造提供技术支持,降低三北地区燃煤机组煤耗和污染物排放,同时解决常规太阳能发电成本高、不稳定等问题。更多还原

【Abstract】 On the basis of constructing the system integration model,the calculation method of the off-design performance of the solar hybrid coal-fired power generation system is expounded. Take 3 regions and 4 capacity coal-fired units as examples,the influence of regions,capacity on the performance changes,energy saving and emission reduction effects,investment payback periods of solar hybrid coal-fired power plant are studied. The results show that when 300 MW units carry out the solar hybrid coal-fired power generation in different regions,the units with the solar energy-rich area has the largest savings in standard coal,the largest pollutant emission reduction,and the shortest investment payback period,and when different units carry out the solar hybrid coal-fired power generation in the same area,the unit with the largest output has the largest savings in standard coal,the largest amount of pollutant emission reduction,and the shortest investment payback period. The solar hybrid coal-fired power generation system can reduce the coal consumption and improve the efficiency of solar power generation. The calculation method provides technical support for the technical transformation of introducing solar energy into coal-fired generating units,reduces the coal consumption and pollutant emission of coal-fired generating units in the three north areas,and solves the problems of high cost and instability of conventional solar power generation.更多还原