光伏-压电复合独立供电系统的运行分析
摘要：目的 为了使小型独立供电单元提供更为灵活且稳定的电力供应，设计了光伏-压电复合独立供电系统，并分析了其在实际运行中的性能。 方法 考虑公交车站等供电场景，建立压电陶瓷与光伏电池的输出特性模型，设计光伏-压电户外独立供电单元的系统配置，分析典型日、典型年及长期运行工况下的电力输出及系统稳定性。针对有无压电陶瓷的系统设计，分析系统供电可靠率、弃电量和发电成本。 结果 增加压电陶瓷后，系统的可靠率为99.18%，发电成本为1.399元/(kW⋅h)，年弃电量为161.24 kW⋅h，与无压电陶瓷的系统相比，可靠率提高了0.12%，成本增加了0.8%，弃电量减少了18.6%。 结论 增加压电陶瓷后，虽然系统发电成本略有上升，但系统供电可靠性提高、弃电量减少。随着压电陶瓷成本下降和技术发展，光伏-压电复合独立供电系统在特殊场景下将具有更好的应用前景。
Abstract:Objectives In order to make the small independent power supply unit provide more flexible and stable power supply, a photovoltaic-piezoelectric composite independent power supply system was designed, and its performance in actual operation was analyzed. Methods Considering the power supply scenarios such as bus stations, the output characteristics model of piezoelectric ceramics and photovoltaic cells was established, the system configuration of photovoltaic-piezoelectric outdoor independent power supply unit was designed, and the power output and system stability under typical daily, typical annual and long-term operating conditions were analyzed. For the system design with or without piezoelectric ceramics, the reliability rate of power supply, curtailment power and power generation cost of the system were analyzed. Results After adding piezoelectric ceramics, the reliability rate of the system is 99.18%, the power generation cost is 1.399 yuan/(kW⋅h), and the annual curtailment power is 161.24 kW⋅h. Compared with the system without piezoelectric ceramics, the reliability rate is increased by 0.12%, the cost is increased by 0.8%, and the curtailment power is reduced by 18.6%. Conclusions After the addition of piezoelectric ceramics, although the power generation cost of the system increases slightly, the reliability of the system power supply is improved and the curtailment power is reduced. With the reduction of the cost of piezoelectric ceramics and the development of technology, the photovoltaic-piezoelectric composite independent power supply system will have a better application prospect in special scenarios.
标题：光伏-压电复合独立供电系统的运行分析
title:Operation Analysis of a Photovoltaic-Piezoelectric Composite Independent Power Supply System
作者：孟梓睿, 刘雅雯, 巨星
authors:Zirui MENG, Yawen LIU, Xing JU
关键词：光伏发电,压电陶瓷发电,光伏电池,独立供电,运行分析,经济性分析,
keywords:photovoltaic power generation,piezoelectric ceramic power generation,photovoltaic cells,independent power supply,operation analysis,economic analysis,
发表日期：2024-08-31
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