Mathematical Model Design of Photovoltaic Pumping Water Systems for Irrigation

Abstract

The agricultural sector has suffered from low penetration of the national energy grid in areas with irrigation capacity in developing countries, where the majority of the population does not have access to the traditional electricity grid. Because of the low rate of population access to power, there is a need for the production of reliable and renewable energy for agricultural and domestic uses. PVWPSI (photovoltaic water pumping systems for irrigation) have been commonly used in many countries to improve access to irrigation resources.

In this article, we will present a new technical model that will be used as a guide for data collection and quantification of the electrical energy needed for irrigation based on the physiological requirements of each crop in terms of crop water needs, and then the irrigation water needs at all stages of crop development.

The crops are distinguished by their developmental stage, and the PVWSI is designed to satisfy the crop's water requirement.

The eggplant's sizing process is flowering, and the daily levels of surplus electrical energy in the operation after irrigation in the four growth phases of the eggplant are 4.87 kWh, 2.65 kWh, 0.98 kWh, and 2.63 kWh, which can be retained and diverted to cover other electrical energy requirements.