Optimization of Inverter Selection for PV Plants Based on Energy Storage Configuration
李大同 LI Da-tong；常耀华 CHANG Yao-hua；魏扬 WEI Yang；余振龙 YU Zhen-long
（宁夏龙源新能源有限公司，银川 750020）
（Ningxia Longyuan New Energy Co.，Ltd.，Yinchuan 750020，China）
摘要：在一定程度上提高容配比，可以提高逆变器、箱变的设备利用率，降低逆变器、箱变的工程造价，同时还可以摊薄升压站、送出线路等公用设施的投资成本，对光伏度电成本（LCOE）的下降具有积极意义。本文通过甘肃某光伏电站的容配比优化设计，结果表明随着容配从比 1颐1 提升至 1颐1.2，光伏电站的度电成本从 0.2115 元/kW·h 下降至 0.1884 元/kW·h；但是，在配置 10%、2h 的储能容量的条件下，度电成本呈现增加趋势。因此，在光伏电站的建设中，在土地资源、储能配置的不同条件下优化容配比，降低光伏发电度电成本，从而实现资源的高效利用和项目效益最优设计。
Abstract: Improving the capacity ratio to a certain extent can enhance the utilization rate of inverters and box-type transformers,reduce engineering costs associated with these components, and simultaneously dilute the investment costs of public facilities such as booster stations and transmission lines. This has significant implications for lowering the levelized cost of electricity (LCOE) from photovoltaic sources. This article presents an optimization design for the capacity and distribution ratio of a photovoltaic power station in Gansu. The results indicate that as the capacity and distribution ratio increases from 1颐1 to 1颐1.2, the kWh cost of the photovoltaic power station decreases from 0.2115 yuan/kW·h to 0.1884 yuan/kW·h. However, when configured with 10% and 2-hour energy storage capacity,the cost of electricity exhibits an increasing trend. Therefore, during the construction of photovoltaic power stations, it is essential to optimize the capacity ratio based on varying land resource conditions and energy storage configurations to minimize the cost of photovoltaic power generation, thereby achieving efficient resource utilization and optimal project benefits.
关键词：光伏电站；容配比；优化设计
Key words: photovoltaic power station；capacity ratio；optimized design
中图分类号：TM615 文献标识码：A 文章编号：1006-4311（2024）30-090-04 doi:10.3969/j.issn.1006-4311.2024.30.026
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