Operational performance analysis of CSP and PV-CSP systems based on supercritical carbon dioxide Brayton cycle

YANG Jingze; YANG Zhen; DUAN Yuanyuan

doi:10.19666/j.rlfd.202006182

English

您当前的位置：

首页 >

文章列表页 >

Operational performance analysis of CSP and PV-CSP systems based on supercritical carbon dioxide Brayton cycle

Thermal Power Generation Vol. 49, Issue 10, Pages: 93-100(2020)

更新时间：2025-09-28

- Operational performance analysis of CSP and PV-CSP systems based on supercritical carbon dioxide Brayton cycle
- 作者机构：
  
  1. 清华大学热科学与动力工程教育部重点实验室
  2. 清华大学二氧化碳资源化利用与减排技术北京市重点实验室
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202006182
  CLC： TK514;TK02
- Published Online：15 September 2020，
  
  Published：2020
- 稿件说明：
移动端阅览
YANG Jingze, YANG Zhen, DUAN Yuanyuan. Operational performance analysis of CSP and PV-CSP systems based on supercritical carbon dioxide Brayton cycle[J]. Thermal Power Generation, 2020, 49(10): 93-100.
DOI：

YANG Jingze, YANG Zhen, DUAN Yuanyuan. Operational performance analysis of CSP and PV-CSP systems based on supercritical carbon dioxide Brayton cycle[J]. Thermal Power Generation, 2020, 49(10): 93-100. DOI： 10.19666/j.rlfd.202006182.

摘要

本文对超临界二氧化碳(S-CO_2)布雷顿循环塔式光热系统及光伏-光热混合系统在典型天气下的运行性能进行了研究。探究光热电站通过灵活调控出力

从而辅助间歇性出力的光伏电站发电并网的能力;分析光伏电站的接入对光热电站运行性能的影响;对比S-CO_2布雷顿再压缩和部分冷却循环所组成的光热电站在不同运行场景下的热力性能。研究结果表明:光热电站可与光伏电站良好地配合

实现混合电站高效发电并网;光伏电站的接入会导致光热电站的运行效率降低

如晴天时

为辅助光伏电站并网

再压缩循环光热电站的运行效率由20.23%降至18.34%;在光热电站独立发电的运行场景下

再压缩循环光热电站性能更优

而在混合电站联合发电的运行场景下

部分冷却循环光热电站性能更优。

Abstract

The operational performance of solar power tower system and photovoltaic(PV)-concentrated solar power(CSP) system integrated with supercritical carbon dioxide(S-CO_2) Brayton cycle under typical weather conditions are studied. The ability of CSP plant flexibly adjusting the power production to assist the intermittent power output of PV plant to connect to the grid is discussed. The influences of the integration of PV plant on operational performance of the CSP plant are analyzed. The thermodynamic performance of the CSP plant integrated with recompression and partial-cooling S-CO_2 Brayton cycles in different operating scenarios are compared. The results show that

the CSP plant can cooperate well with the PV plant so that the hybrid plant can achieve efficient power generation. The integration of PV plant will lead to a decrease in efficiency of the CSP plant. For example

the efficiency of the CSP plant with recompression cycle on the sunny day is reduced from 20.23% to 18.34% to assist the power generation of PV plant to connect to the grid. The CSP plant with recompression cycle performs better in the operating scenario of CSP plant generating power independently

while the CSP plant with partialcooling cycle performs better in the operating scenario of hybrid plant generating power cooperatively.

关键词

Keywords

references

Views

451

下载量

CSCD

Alert me when the article has been cited

提交

Publicity Resources

Study and application of performance simulation of supercritical CO₂ closed cycles

Study on PCHE in advances sodium cold fast reactor coupled supercritical carbon dioxide Brayton cycle: a review

Simulation analysis on performance of supercritical carbon dioxide recompression intercooling split-flow solar power system

Thermal performance analysis of high-parameter gas turbine and supercritical carbon dioxide combined cycle system

ANALYSIS OF ENERGY BALANCE FOR BOILERS

Related Author

ZHENG Hualei

WU Xuebei

LIU Bin

ZHANG Rongfang

ZHAO Minfu

WANG Xiaoding

LIU Taisheng

ZHANG Chunwei

Related Institution

AVIC Hunan Power Machinery Research Institute

Dongfang Electric Co., Ltd. Nuclear Equipment Design Institute

China Academy of Atomic Energy Sciences

Harbin Electric Group Co., Ltd. Central Research Institute

Shanghai Power Generation Equipment Complete Design and Research Institute Co., Ltd

AI问答

⁰