研究目的
To propose the design, simulation, and optimization of a stand-alone photovoltaic system (SAPV) to provide non-polluting electrical energy based on a renewable source for a rural house located in Tazouta, Morocco.
研究成果
The proposed SAPV system is able to meet 3.8 kWh/d of daily electric load of the case study house for almost the entire year based on 1080 Wp of total capacity of PV modules and 670 Ah of battery storage of and with an average solar fraction of about 79.1%. An optimized solution was determined using Homer Pro tool indicating that the unit energy cost can fall to 0.35 USD/kWh by reducing the PV capacity to 615 W and increasing the share of the diesel generator.
研究不足
The high initial cost of the SAPV system; however, rapidly decreasing prices of PV modules improved its cost-competitiveness in comparison to conventional energy generation systems.
1：Experimental Design and Method Selection:
The methodology followed in the current investigation starts by generating the meteorological data of Tazouta using METEONORM. Then, data related to energy used were collected for a typical house located in the same rural region. Based on the Moroccan market considerations, an initial sizing procedure was followed to identify the appropriate characteristics the main SAPV components. After preparing the input data required, the simulation of the overall SAPV system was performed using the PVsyst software. A life cycle cost analysis was performed to examine the economic viability of the proposed design. Finally, a more optimized configuration was introduced using Homer pro software and the conclusions drawn.
2：Sample Selection and Data Sources:
The evaluation of the proposed SAPV system for rural residential communities was performed for a rural area namely Tazouta, located in Sefrou province, Morocco. The climatic data, in this study, were derived from METEONORM.
3：List of Experimental Equipment and Materials:
The main components of the proposed SAPV System included a PV array, a charge controller, an inverter, a battery and a back-up generator diesel.
4：Experimental Procedures and Operational Workflow:
The sizing of the complete SAPV system to decide the required capacity of the PV array, inverter, battery storage, and charge controller to fulfill the required load. Annual simulation was carried out based on hourly meteorological data to assess the system performance.
5：Data Analysis Methods:
A life cycle cost analysis was performed to examine the economic viability of the proposed design.
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PV module
MSX-60
Solarex
Converts solar energy directly into electricity
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Charge Controller
Regulates the energy levels of the batteries and the power supplied from the photovoltaic modules
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Inverter
Converts a continuous voltage of 12 V, 24 V, or 48 V batteries into alternating voltage of 220 V–240 V
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Battery
Stores energy during the sunny hours and allows its use during night-time
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Diesel Generator
Provides backup power when the SAPV is not able to meet the electrical load during cloudy/nights periods
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METEONORM
7.1.3
Meteotest
Generates meteorological data
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PVsyst
5.06
PVsyst SA
Simulates the overall SAPV system
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Homer Pro
3.10.3
Homer Energy
Optimizes the SAPV system design
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