A guided access and charging optimization method for electric vehicles in parking lots
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A technology for electric vehicle and guided access, which is applied in the direction of electric vehicle charging technology, electric vehicles, and indicating various open spaces in the parking lot. It is not easy for users to accept problems, so as to achieve the effect of optimizing charging and discharging power and ensuring daily profits
Active Publication Date: 2022-02-18
KUNMING UNIV OF SCI & TECH
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Abstract
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Problems solved by technology
There are limitations in the traditional electric vehicle charging guidance method, such as: while establishing the electric vehicle guidance mechanism, it focuses on the interior of a single parking lot, and does not consider the feasibility of guidance between different parking lots
Usually, the goal of maximizing the parking lot operation is pursued, and the proposed access discrimination mechanism is not easily accepted by users.
When studying the participation of electric vehicles in providing backup, the lack of consideration for the limitation of the number of charging facilities affects the accuracy of the model
Method used
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Embodiment 1
[0087] Embodiment 1: as figure 1 As shown, a guided access method suitable for parking electric vehicles, the steps of the method are as follows:
[0088] Step S1, establishing a traffic road network adjacency matrix;
[0089] Step S2, according to the adjacency matrix of the traffic road network, determine the selection order of the electric vehicle parking lot;
[0090] Step S3, according to the remaining vacant charging parking spaces in the parking lot and the guidance feasibility restriction conditions, determine the result of the electric vehicle guidance access.
[0091] A charging optimization method suitable for electric vehicles in a parking lot, including a guided access method, and further comprising:
[0092] Step S4, according to the result of the guided access of the electric vehicle, and on the basis of taking into account the backup compensation, optimize the charging and discharging power of the parking lot.
Embodiment 2
[0093] Embodiment 2: as Figure 1-5 As shown, a method for guiding access and charging optimization applicable to electric vehicles in a parking lot, the specific steps of the method are as follows:
[0094] Step S1, establishing a traffic road network adjacency matrix;
[0095] S1.1: On the basis of statistical summary of the traffic network and the construction location of the electric vehicle parking lot, based on the spatial structure of the urban road network, select representative locations such as parking lots and shopping malls as the nodes of the traffic network;
[0096] S1.2: Based on the distance between different transportation network nodes, create a transportation network connectivity graph, the specific structure is as attached figure 2 shown;
[0097] S1.3: Establish the adjacency matrix of the urban road network; the adjacency matrix is to store the traffic network connectivity graph in the form of an adjacency matrix in the guidance central server. If t...
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Abstract
The invention discloses a guiding access method suitable for electric vehicles in a parking lot, comprising: S1, establishing the adjacency matrix of the traffic road network; S2, determining the selection and ordering of the electric vehicle parking lot according to the adjacency matrix of the traffic road network; S3, according to the parking lot According to the remaining vacant charging parking spaces in the field and the guidance feasibility constraints, determine the result of electric vehicle guidance access. A method for optimizing charging is disclosed, including: S4. According to the result of guided access of electric vehicles, and on the basis of taking into account backup compensation, optimize the charging and discharging power of a parking lot. The present invention obtains the guided access result of the electric vehicle parking lot by introducing guidance feasibility constraints. After the guidance occurs, the number of corresponding electric vehicles waiting for access at each moment in the parking lot decreases significantly, and the phenomenon of waiting for access in the parking lot is further alleviated. , corresponding to the fact that the actual access time of electric vehicles is significantly higher than before; according to the guided access results, the charging and discharging power of the parking lot is optimized to ensure the daily profit of the parking lot operator.
Description
technical field [0001] The invention relates to a guiding access and charging optimization method suitable for electric vehicles in a parking lot, and belongs to the field of charging energy management of electric vehicles. Background technique [0002] Constrained by the speed of infrastructure construction, the contradiction between electric vehicles and charging infrastructure has become increasingly prominent. After the electric car arrives at the parking lot, if there is no sufficient charging device, it can only be connected to the grid after waiting for other vehicles to leave. A large number of electric vehicles connected in disorder will aggravate the waiting situation in the parking lot, shorten the actual access time of electric vehicles, and then affect the ability of electric vehicles to participate in providing auxiliary backup. Therefore, in order to avoid this phenomenon, it is necessary to formulate a comprehensive guidance strategy and operation mode for t...
Claims
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Application Information
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