Optimization and control strategy of electric vehicles access to power grid

Purpose This paper aims to reduce the impact of disordered charging of large-scale electric vehicles (EVs) on the grid. EV is great significance for environmental protection, energy conservation and emission reduction to replace fuel vehicles with EVs. However, as a kind of random mobile load, large...

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Bibliographic Details
Published in:Circuit world 2024-01, Vol.50 (1), p.35-44
Main Authors: Yin, Wanjun, Qin, Xuan
Format: Article
Language:English
Subjects:
Algorithms
Alternative energy sources
Design optimization
Efficiency
Electric power grids
Electric vehicle charging
Electric vehicles
Electrical loads
Electricity distribution
Environmental protection
Load fluctuation
Operating costs
Optimization algorithms
Particle swarm optimization
Pollution
Voltage reduction
Wind power
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Summary:Purpose This paper aims to reduce the impact of disordered charging of large-scale electric vehicles (EVs) on the grid. EV is great significance for environmental protection, energy conservation and emission reduction to replace fuel vehicles with EVs. However, as a kind of random mobile load, large-scale integration into the power grid may lead to power quality problems such as line overload, line loss increase and voltage reduction. This paper realizes the orderly charging of electric vehicles and the safe operation of the distribution network by optimizing the dispatching scheme. Design/methodology/approach This paper takes the typical IEEE-33 node distribution system as the research object, adopts the improved particle swarm optimization algorithm and takes the minimum operation cost, the minimum environmental pollution, the minimum standard deviation of daily load, the minimum peak valley difference of load, the minimum node voltage offset rate and the minimum system grid loss rate as the optimization objectives. Findings Controlling the disordered charging of large-scale electric vehicles by optimizing the dispatching algorithm can realize the full consumption of renewable energy and the safe operation of the power grid. Originality/value Results show that the proposed scheme can realize the transfer of charging load in time and space, so as to stabilize the load fluctuation of distribution grid, improve the operation quality of power grid, reduce the charging cost of users and achieve the expected research objectives.
ISSN:0305-6120
1758-602X
0305-6120
DOI:10.1108/CW-07-2020-0130