Design, simulation, and analysis of a PV power and reverse osmosis system for a house in Iran

Mousavi, Seyed Mohammad (2022) Design, simulation, and analysis of a PV power and reverse osmosis system for a house in Iran. Masters thesis, Memorial University of Newfoundland.

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Abstract

Electricity demand is increasing and new energy resources are required, especially environment-friendly resources like PV systems. On the other hand, water scarcity is another growing issue in the modern world, and the availability of potable water is a concern. Therefore, designing a system to address both problems in one solution is needed. In this thesis, a photovoltaic (PV) power system and reverse osmosis (RO) system were designed, simulated, and analyzed for a rural house in Tehran, Iran. Water system configuration in the house was investigated, RO system components were merged into the system, and a new design was proposed. RO load and house load were calculated, and different hybrid renewable energy systems (HRES) were introduced. Optimization results with HOMER Pro software suggested that the PV battery RO system had several advantages over other systems. Moreover, the software offered optimum low cost system sizing. Then the PV and RO system dynamic model was introduced to check the behaviour of the system. This part was conducted in two phases; in the first phase, a transfer functionbased model for a small-scale RO unit was introduced, and the model precisely mimicked the system's behaviour for different inputs. In the second phase, components of the PV system were simulated in MATLAB/Simulink, and it was proved that the proposed electrical system powers the loads with a fixed and stable voltage and frequency in all the conditions. Finally, three different maximum power point tracking (MPPT) techniques were designed and simulated for the PV system and shown that the fuzzy logic (FL) controller offers better results.

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