An Online Optimization Approach for Plug-in Electric Vehicle Integration into the Electrical Grid

2021 ◽  
Author(s):  
Ona Egbue
Keyword(s):  
Electric Vehicle ◽  
Online Optimization ◽  
Optimization Approach ◽  
Electrical Grid

scholarly journals Optimal Management of a Hybrid Renewable Energy System Coupled with a Membrane Bioreactor Using Enviro-Economic and Power Pinch Analyses for Sustainable Climate Change Adaption

2018 ◽  
Vol 11 (1) ◽  
pp. 66 ◽  
Author(s):  
Tuan-Viet Hoang ◽  
Pouya Ifaei ◽  
Kijeon Nam ◽  
Jouan Rashidi ◽  
Soonho Hwangbo ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Membrane Bioreactor ◽  
Energy System ◽  
Optimization Approach ◽  
Electrical Grid ◽  
Environmental Models ◽  
Hybrid Renewable Energy System ◽  
Renewable Energy System ◽  
Scale Optimization ◽  
Hybrid Renewable Energy

This study proposed an optimal hybrid renewable energy system (HRES) to sustainably meet the dynamic electricity demand of a membrane bioreactor. The model-based HRES consists of solar photovoltaic panels, wind turbines, and battery banks with grid connectivity. Three scenarios, 101 sub-scenarios, and three management cases were defined to optimally design the system using a novel dual-scale optimization approach. At the system scale, the power-pinch analysis was applied to minimize both the size of components and the outsourced needed electricity (NE) from Vietnam’s electrical grid. At a local-scale, economic and environmental models were integrated, and the system was graphically optimized using a novel objective function, combined enviro-economic costs (CEECs). The results showed that the optimal CEECs were $850,710/year, $1,030,628/year, and $1,693,476/year for the management cases under good, moderate, and unhealthy air qualities, respectively. The smallest CEEC was obtained when 47% of the demand load of the membrane bioreactor was met using the HRES and the rest was supplied by the grid, resulting in 6,800,769 kg/year of CO2 emissions.

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