Journal
CIVIL ENGINEERING JOURNAL-TEHRAN
Volume 8, Issue 7, Pages 1406-1434Publisher
C EJ PUBLISHING GROUP
DOI: 10.28991/CEJ-2022-08-07-07
Keywords
Hybrid Energy System; PV System; PV/Diesel/Battery Storage System; PV for Truck; Mobile Service Units.
Categories
Funding
- National Center for Scientific and Technical Research (CNRST)
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The article analyzes, evaluates, and improves solutions for integrating hybrid energy sources in mobile service units, aiming to provide better services to rural populations. Through simulation and comparison, more advantageous association scenarios were proposed, reducing reliance on diesel generators.
The article aims to analyze, evaluate, and improve solutions for the integration of hybrid energy sources (Solar Photovoltaic PV/Batteries/Diesel Generator (DG)) in mobile service units (MSU), designed to provide services to rural populations (drug delivery, vaccination, training, employment promotion, bank, laboratory, etc.). The first objective is to evaluate the performance of two already deployed photovoltaic systems installed on the roofs of trucks, with respective powers of 2.12 and 3.54 kWp. Solar production, consumption, and SOC (State of Charge) of batteries are collected and analyzed. We modelled the energy conversion chain and simulated its behavior on all days of the year. Simulated results are then compared to the on-site measurements. Several association scenarios (PV/batteries) are then studied to propose the optimal combination, taking into account the surface offered for the installation of the PV modules (roof of the truck), the weight, and the lifespan of the batteries. The developed and deployed solution proposes more advantageous association scenarios (PV/Storage), and reduces the time of recourse to the DG. From this perspective, we simulated the operation of the hybrid system for the three battery capacities: 40,000, 31,680, and 19,200 Wh (similar to 1667, 1320, and 800 Ah). The results reveal that the uncaptured energy for a 3540 Wp field is five times greater than that of a 2120 Wp field. On the other hand, the number of battery charge/discharge cycles is divided by ten.
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