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首页> 外文期刊>Energy Conversion & Management >The daily and annual technical-economic analysis of the thermal storage PV- CSP system in two dispatch strategies
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The daily and annual technical-economic analysis of the thermal storage PV- CSP system in two dispatch strategies

机译：两种调度策略中的蓄热式PV-CSP系统的每日和年度技术经济分析

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摘要

This study aims to exploit the low-cost generation of photovoltaic (PV) plant and high-capacity and low-cost thermal energy storage (TES) system of concentrating solar power (CSP) plant. Thus, this study proposed the thermal storage PV-CSP system, that is, using low-cost TES in the CSP system to replace high-cost battery in PV system and storing fluctuant PV electricity in TES in the form of thermal energy. The annual thermal and economic performances of the thermal storage PV-CSP system were analyzed. The total annual output from the thermal storage PV-CSP system decreased slightly compared with, the sum of PV and CSP systems separately in the conventional dispatch strategy. The annual output from the thermal storage PV-CSP plant increased by 6.52%, and capacity increased by 4.85% compared with the conventional PV-CSP system in the constant-output strategy, thereby indicating that the integration is helpful for fully utilizing solar energy. In the conventional dispatch strategy, the levelized cost of energy (LCOE) increased by 4.3% in the thermal storage PV-CSP system compared with the result of stand-alone PV plant but decreased by 22.6% compared with the result of stand-alone CSP plant. In the constant-output dispatch strategy, LCOE decreased by 19.0% in the thermal storage PV-CSP system compared with the conventional PV-CSP system. Result shows the economic efficiency of the proposed system. The power output curve is more fluid and stable in the constant-output dispatch strategy than in the conventional dispatch strategy.
机译：这项研究的目的是开发低成本的光伏（PV）电厂和聚光太阳能（CSP）电厂的高容量，低成本的热能存储（TES）系统。因此，本研究提出了一种蓄热式PV-CSP系统，即在CSP系统中使用低成本的TES来代替光伏系统中的高成本电池，并以热能的形式在TES中存储波动的PV电力。分析了蓄热式PV-CSP系统的年度热经济性能。与传统调度策略中的PV和CSP系统总和相比，蓄热PV-CSP系统的年总产量略有下降。在恒定输出策略中，与传统的PV-CSP系统相比，蓄热式PV-CSP工厂的年产量增加了6.52％，容量增加了4.85％，从而表明该集成有助于充分利用太阳能。在常规调度策略中，与独立光伏电站相比，储热式PV-CSP系统的平均能源成本（LCOE）增加了4.3％，但与独立CSP结果相比降低了22.6％厂。在恒定输出调度策略中，与传统的PV-CSP系统相比，蓄热式PV-CSP系统的LCOE降低了19.0％。结果表明了该系统的经济效率。与常规调度策略相比，恒定输出调度策略中的功率输出曲线更加流畅和稳定。

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  • 来源
    《Energy Conversion & Management》 |2017年第12期|56-67|共12页
  • 作者

    Zhai Rongrong; Liu Hongtao; Chen Ying; Wu Hao; Yang Yongping;

  • 作者单位

    North China Elect Power Univ, Sch Energy Power & Mech Engn, Beijing 102206, Peoples R China;

    North China Elect Power Univ, Sch Energy Power & Mech Engn, Beijing 102206, Peoples R China;

    North China Elect Power Univ, Sch Energy Power & Mech Engn, Beijing 102206, Peoples R China;

    North China Elect Power Univ, Sch Energy Power & Mech Engn, Beijing 102206, Peoples R China;

    North China Elect Power Univ, Sch Energy Power & Mech Engn, Beijing 102206, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    PV plant; CSP plant; Thermal storage PV-CSP; Dispatch strategy;

    机译：光伏电站;CSP工厂;储热式PV-CSP;调度策略;

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