光-煤-储互补发电系统的集成与优化研究  

STUDY ON INTEGRATION AND OPTIMIZATION OF SOLAR THERMAL-COAL-STORAGE COMPLEMENTARY POWER GENERATION SYSTEM

作　　者：郭磊 张迪 米嘉昊 李鹏宇 Guo Lei;Zhang Di;Mi Jiahao;Li Pengyu(Inner Mongolia Electric Power Survey&Design Institute Co.,Ltd.,Hohhot 010010,China;College of Energy and Power Engineering,Inner Mongolia University of Technology,Hohhot 010062,China)

机构地区：[1]内蒙古电力勘测设计院有限责任公司,呼和浩特010010 [2]内蒙古工业大学能源与动力工程学院,呼和浩特010062

出　　处：《太阳能》2025年第4期29-40,共12页Solar Energy

基　　金：内蒙古自治区科技计划项目(2023YFHH0108);内蒙古电力勘测设计院有限责任公司博士后项目;内蒙古自治区高等学校科学技术研究项目(NJZZ23086)。

摘　　要：在“双碳”目标背景下,降低燃煤机组碳排放,提升可再生能源利用率是实现该目标的重要方式。以温度匹配、能量梯级利用为原则,将采用三熔盐储热罐的储热系统与燃煤机组和槽式太阳能集热系统进行耦合,建立了光-煤-储互补发电系统,并通过考虑燃煤机组常规调峰能力和改造成本,以能量利用率最大为目标,对该互补发电系统的参数配置进行了优化。研究结果显示:随着储热时长增加,光-煤-储互补发电系统的能量利用率先增加后下降;当储热时长为350 min时,该系统的能量利用率达到最大值,为88.82%;单日净节煤量为36.49 t,这表明燃煤机组与槽式太阳能集热系统和储热系统结合后,具有较好的调峰性能和节能减排效果。Under the goals of emission peak and carbon neutrality,reducing carbon emissions from coal-fired units and enhancing renewable energy utilization efficiency are crucial approaches to achieving these goals.This paper proposes a solar thermal-coal-storage complementary power generation system by integrating a three molten salt storage tanks of thermal storage system with coal-fired units and trough type solar energy collection system based on temperature matching and energy cascade utilization principles.Considering conventional peaking capacity and retrofitting costs of coal-fired units,the system's parameter configuration is optimized with the objective of maximizing energy utilization efficiency.Research results show that the energy utilization efficiency of the solar thermal-coal-storage complementary power generation system initially increases and then declines with extended thermal storage duration.The optimal energy utilization efficiency reaches 88.82%at a thermal storage duration of 350 min,the net daily coal saving is 36.49 t.These results demonstrate that the integration of coal-fired units with trough type solar collection systems and thermal storage systems has good peak-shaving performance and emission reduction effects.

关 键 词：碳排放 燃煤机组 三熔盐储热罐 储热系统 槽式太阳能集热系统 调峰 能量利用率 互补发电系统 

分 类 号：TM611.1[电气工程—电力系统及自动化] TM615[动力工程及工程热物理—热能工程] TK519