Multi-Objective Dynamic Economic Dispatch of Microgrid Systems Including Vehicle-to-Grid

Haitao Liu, Yu Ji, Huaidong Zhuang and Hongbin Wu
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Haitao Liu: China Electric Power Research Institute, Haidian District, Beijing 100192, China
Yu Ji: China Electric Power Research Institute, Haidian District, Beijing 100192, China
Huaidong Zhuang: School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, China
Hongbin Wu: School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, China

Energies, 2015, vol. 8, issue 5, 1-20

Abstract: Based on the characteristics of electric vehicles (EVs), this paper establishes the load models of EVs under the autonomous charging mode and the coordinated charging and discharging mode. Integrating the EVs into a microgrid system which includes wind turbines (WTs), photovoltaic arrays (PVs), diesel engines (DEs), fuel cells (FCs) and a storage battery (BS), this paper establishes multi-objective economic dispatch models of a microgrid, including the lowest operating cost, the least carbon dioxide emissions, and the lowest pollutant treatment cost. After converting the multi-objective functions to a single objective function by using the judgment matrix method, we analyze the dynamic economic dispatch of the microgrid system including vehicle-to-grid (V2G) with an improved particle swarm optimization algorithm under different operation control strategies. With the example system, the proposed models and strategies are verified and analyzed. Simulation results show that the microgrid system with EVs under the coordinated charging and discharging mode has better operation economics than the autonomous charging mode. Meanwhile, the greater the load fluctuation is, the higher the operating cost of the microgrid system is.

Keywords: microgrid; dynamic economic dispatch; electric vehicles; judgment matrix method; particle swarm optimization; load fluctuation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (15)

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