Abstract This paper presents results on simulation, optimization and control of hybrid solar based energy system to power a desalination plant. The principal objective is to design a clean energy system to meet the desired electric load of the desalination plant with high renewable fraction, low cost of energy, and low carbon dioxide gas emissions. Hourly simulations and optimization were performed to determine the performance and life cycle cost of the different hybrid power configurations. The results of the baseline or the actual power system from the grid are compared with two new renewable power systems: (1) grid tied solar system: solar PV/grid/inverter power system, and (2) Off grid solar power system: PV/diesel generator/battery/inverter power system. The results show that the solar PV/grid/inverter power system offers the best performance compared to PV/diesel generator/battery/inverter. The total energy from the hybrid grid tied solar system is used to meet the AC load of the desalination plant with almost no excess electricity and power shortage. The proposed hybrid power system for the desalination plant is sustainable, economically viable and environmentally friendly: high renewable fraction (47.3%), low excess power (0.15%), low levelized cost of energy (90 $/MWh), and low CO2 gas emissions (264.25 kg CO2/MWh).

中文翻译：

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海水淡化厂并网和独立混合太阳能发电系统

摘要 本文介绍了为海水淡化厂供电的混合太阳能系统的模拟、优化和控制结果。主要目标是设计一个清洁能源系统，以满足海水淡化厂所需的电力负荷，具有高可再生比例、低能源成本和低二氧化碳气体排放。每小时进行一次模拟和优化，以确定不同混合动力配置的性能和生命周期成本。将来自电网的基线或实际电力系统的结果与两个新的可再生电力系统进行比较：(1) 并网太阳能系统：太阳能光伏/并网/逆变电源系统，以及 (2) 离网太阳能发电系统：PV /柴油发电机/电池/逆变电源系统。结果表明，与光伏/柴油发电机/电池/逆变器相比，太阳能光伏/电网/逆变器电力系统提供了最佳性能。混合并网太阳能系统的总能量用于满足海水淡化厂的交流负载，几乎没有多余的电力和电力短缺。为海水淡化厂提议的混合动力系统是可持续的、经济可行且环保的：可再生比例高 (47.3%)、过剩功率低 (0.15%)、能源成本平准化 (90 $/MWh) 和二氧化碳含量低排放量（264.25 千克二氧化碳/兆瓦时）。