Abstract
Plug-in Hybrid Electric Vehicles (PHEVs) have the potential of providing frequency regulation due to the adjustment of power charging. Based on the stochastic nature of the daily mileage and the arrival and departure time of Electric Vehicles (EVs), a precise bidirectional charging control strategy of plug-in hybrid electric vehicles by considering the State of Charge (SoC) of the batteries and simultaneous voltage and frequency regulation is presented in this paper. The proposed strategy can control the batteries charge which are connected to the grid, and simultaneously regulate the voltage and frequency of the power grid during the charging time based on the available power when different events occur over a 24-h period. The simulation results prove the validity of the proposed control strategy in coordinating plug-in hybrid electric vehicles aggregations and its significant contribution to the peak reduction, as well as power quality improvement. The case study in this paper consists of detailed models of Distributed Energy Resources (DERs), diesel generator and wind farm, a generic aggregation of EVs with various charging profiles, and different loads. The test system is simulated and analyzed in MATLAB/SIMULINK software.
Highlights
This paper mainly focuses on Plug-in Hybrid Electric Vehicles (PHEVs) to study the impact of Electric Vehicles (EVs) and their interconnection to the power system
This paper presents a precise bidirectional charging control strategy of PHEVs in power grids to simultaneously regulate the voltage and frequency, as well as reducing the peak load, and improving the power quality by considering the State of Charge (SoC) and available active power in power grids
The voltage magnitude and phase board PHEV chargers are located at specific places and provide either a slow or fast charging angle194 play the important rolescharging in power transfer in important power grids
Summary
The rapid increase in energy demand, destruction of the earth’s resources, and discharge of carbon dioxide are the leading causes of environmental pollution and climate change in the world. The arbitrary connection of PHEVs to the power grid leads to the complicated operation, planning, and control of the power system. Microgrids areclear defined as interconnected local energy centers with control and management capabilities and boundaries. They enable bidirectional and control and management capabilities and clear boundaries. A result, microgrids can interconnect to theperspective, power grid and improvecan theconnect power grid and improve theAs power quality and reliability. Based on the expansion of the interconnected power grids through the long transmission transmission lines, lines, increasing the load demand, and the need for a supervisory control system for the power generation units, electric utilities are moving toward the decentralized and deregulated power systems, focusing on independent microgrids. As wind, solar, in the powertosystem tothe support the supply grid and supply the load demand
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