光伏-塔式光热SCO<sub>2</sub>混合发电系统优化配置

宫啸宇; 范刚; 张嘉耕; 王宇兴; 戴义平

doi:10.7652/xjtuxb202408009

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光伏-塔式光热SCO₂混合发电系统优化配置

—————————————————————— | 更新时间：2025-07-28

- 光伏-塔式光热SCO₂混合发电系统优化配置
- Optimal Configuration of Photovoltaic-Tower SCO₂ Hybrid Power Generation System
- 西安交通大学学报 2024年58卷第8期页码：80-91
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
  
  : 2023-10-11。作者简介: 宫啸宇(2000—),男,博士生
  戴义平(通信作者),男,教授,博士生导师。基金项目: 国家自然科学基金资助项目(51976145)。
- 基金信息：
  
  : 2023-10-11。作者简介: 宫啸宇(2000—),男,博士生;戴义平(通信作者),男,教授,博士生导师。基金项目: 国家自然科学基金资助项目(51976145)。
- DOI：10.7652/xjtuxb202408009
  中图分类号： TK514
- 网络首发：2024-08-10，
  
  纸质出版：2024
- 稿件说明：
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宫啸宇, 范刚, 张嘉耕, 等. 光伏-塔式光热SCO₂混合发电系统优化配置[J]. 西安交通大学学报, 2024,58(8):80-91. DOI: 10.7652/xjtuxb202408009.

GONG Xiaoyu, FAN Gang, ZHANG Jiageng, et al. Optimal Configuration of Photovoltaic-Tower SCO₂ Hybrid Power Generation System[J]. 2024, 58(8): 80-91. DOI: 10.7652/xjtuxb202408009.
宫啸宇, 范刚, 张嘉耕, 等. 光伏-塔式光热SCO₂混合发电系统优化配置[J]. 西安交通大学学报, 2024,58(8):80-91. DOI: 10.7652/xjtuxb202408009. DOI：

GONG Xiaoyu, FAN Gang, ZHANG Jiageng, et al. Optimal Configuration of Photovoltaic-Tower SCO₂ Hybrid Power Generation System[J]. 2024, 58(8): 80-91. DOI: 10.7652/xjtuxb202408009. DOI：

摘要

针对现阶段光热发电系统成本较高和光伏发电功率波动性大的问题

提出了光伏-塔式光热超临界二氧化碳布雷顿循环(SCO

)混合发电系统

研究了系统关键配置参数对经济性-环保性的影响规律

基于不同负荷类型对系统参数配置进行了多目标优化

探索了不同应用场景下混合发电系统的运行特性。仿真结果表明:光伏-塔式光热SCO

混合发电系统中

光热发电比例升高时

系统经济性下降

但环保性能改善; 增大混合发电系统总额定功率可降低系统平准化度电成本; 当太阳倍数为4、储热时长为18 h情况下

平准化度电成本存在最低值为0.64元/(kW·h)

比单纯光热发电经济性提高了31%。孤网运行条件下

在光伏-塔式光热SCO

混合发电系统基础上增设柴油发电机组后

能够有效提升太阳能发电系统的供电可靠性

柴油发电占比仅为1.5%

柴油发电机组的年运行时长不足200 h即可保证100%满足实时电负荷需求。

Abstract

In view of the high cost of the current solar thermal power generation system and the large fluctuation of photovoltaic power generation

a photovoltaic-tower photothermal supercritical carbon dioxide Brayton cycle(SCO

)hybrid power generation system is proposed

and the influence law of the key configuration parameters of the system on economical efficiency and environmental protection performance is studied. The multi-objective optimization of system parameter configuration is carried out based on different load types

and the operating charact

eristics of the hybrid power generation system under different application scenarios are explored. The simulation results show that when the ratio of solar thermal power generation in the hybrid power generation system increases

the economical efficiency of the system decreases

but the environmental protection performance improves. Increasing the total fixed power of the hybrid power generation system can reduce the system's levelized cost of energy. When the solar multiple is 4 and the heat storage time is 18 h

the minimum value of the levelized cost of energy is 0.64 yuan/(kW·h)

which is 31% higher than the economical efficiency of solar thermal power generation alone. Under isolated grid operation conditions

the addition of diesel generator sets to the hybrid power generation system can effectively improve the power supply reliability of the solar power generation system. When the proportion of diesel power generation is only 1.5%

and the annual operation time of diesel generator sets is less than 200 h

all the real-time power load demand will be met.

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references

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光伏-塔式光热SCO2混合发电系统优化配置

Optimal Configuration of Photovoltaic-Tower SCO2 Hybrid Power Generation System

DOI：10.7652/xjtuxb202408009

摘要

Abstract

关键词

Keywords

references

光伏-塔式光热SCO₂混合发电系统优化配置

Optimal Configuration of Photovoltaic-Tower SCO₂ Hybrid Power Generation System