Abstract This paper investigates the value of using existing irrigation infrastructure to store surplus photovoltaic energy in a farmhouse. The irrigation system includes a reservoir and a water well. The depth of the water well is used to store energy in the form of gravitational potential energy. Throughout the day, photovoltaic energy is used to pump water from the bottom of a well to the reservoir at ground level, where this stored water is then used to meet demand by releasing the water back to the well through a hydro turbine. A controller is designed to manage the pump and the turbine efficiently to reduce daily electricity costs of the farmhouse. The proposed method is validated experimentally with a real pump and a turbine. The controller manages the pump power and turbine flow rate considering the losses of storage, the feed-in income, and the cost-saving for each decision. The proposed system is also simulated in MATLAB for a whole year using real data to investigate the economic aspects of this storage in different seasons with different irradiance, weather, energy demand, and water demand profiles.

中文翻译：

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由光伏和抽水蓄能系统组成的并网农舍的建模、设计和实验验证

摘要 本文研究了利用现有灌溉基础设施将多余的光伏能源储存在农舍中的价值。灌溉系统包括一个水库和一个水井。水井的深度用于以重力势能的形式储存能量。全天使用光伏能源将水从井底抽到地面的水库，然后通过水力涡轮机将水释放回井中，然后使用存储的水来满足需求。控制器旨在有效管理泵和涡轮机，以降低农舍的日常电力成本。所提出的方法在真实的泵和涡轮机上进行了实验验证。控制器管理泵功率和涡轮机流量，考虑存储损失、馈入收入、以及每个决定的成本节约。提议的系统还在 MATLAB 中模拟了一整年，使用真实数据来研究这种存储在不同季节、不同辐照度、天气、能源需求和用水需求情况下的经济方面。