【摘要】 针对太阳能辐射功率不稳定性导致光煤互补热电联产机组在不同时段调峰范围相差较大的问题，以某电厂300 MW热电联产机组为研究对象，利用Ebsilon Professional软件搭建耦合储热光煤互补热电联产系统模型，基于典型日实际气象数据，研究在不同供热功率和太阳能辐射功率下储热系统对光煤互补热电联产机组调峰性能及收益的影响。结果表明：耦合储热后光煤互补热电联产机组运行更稳定，同时机组调峰范围扩大，供热功率越高调峰范围扩大越明显；在火电机组供热最小运行方式下，白天太阳能辐射功率最大时耦合储热后光煤互补热电联产机组调峰容量提高37.87%,夜间耦合储热后光煤互补热电联产机组调峰容量提高140.62%;耦合储热机组调峰补偿收益更明显，无储热机组由于集热器热损失的影响夜间调峰补偿收益略低于原始热电联产机组。更多还原

【Abstract】 To address the issue of significant differences in the peak-shaving range of solar-coal complementary cogeneration units during different time periods due to the instability of solar radiation power, taking a 300 MW cogeneration unit from a certain power plant as the research object, using the Ebsilon Professional software, a model of solar-coal complementary cogeneration unit with coupled thermal storage system was established. Based on actual meteorological data from typical days, the effects of the thermal storage system on the peak-shaving performance and benefits of the solar-coal complementary cogeneration unit under different heat supply power and solar radiation power were investigated. The results show that the operation of the solar-coal complementary cogeneration unit becomes more stable after coupling with thermal storage, and the peak-shaving range of the unit is expanded, with a more pronounced expansion as the heat supply power increases. Under the minimum operating mode for heat supply of the thermal power unit, the peak-shaving capacity of the coupled solar-coal complementary cogeneration unit increases by 37.87% during the day when solar radiation power is at its maximum, and by 140.62% at night after coupling with thermal storage.The peak-shaving compensation benefits of the coupled thermal storage unit are more significant. Due to the heat loss of the collector, the peak-shaving compensation benefits of the unit without thermal storage at night are slightly lower than those of the original cogeneration unit.更多还原