WO-2026092422-A1 - CHAOS TOPOLOGY-BASED DIRECT CURRENT POWER DISTRIBUTION METHOD AND SYSTEM FOR CHARGING PILE

WO2026092422A1WO 2026092422 A1WO2026092422 A1WO 2026092422A1WO-2026092422-A1

Abstract

A chaos topology-based direct current power distribution method for a charging pile. The method comprises: establishing a charging pile power initial chaos topology distribution network on the basis of a user requirement and a matrix topology network; extending the dimension of the charging pile power initial chaos topology distribution network to a high-dimensional curved surface by means of a Gaussian kernel function, so as to obtain a charging pile power chaos topology distribution network having a plurality of charging nodes; and then controlling the closing and opening of a contactor switch unit on the basis of the charging pile power chaos topology distribution network, the required power of each charging gun, and a power distribution strategy, so as to control the flow direction of power outputted by a power conversion unit.

Inventors

HU, Fan
GUO, Kecheng
ZHENG, Jixiang
WANG, SIMIN
WU, Shuxiang
ZHONG, Wenping
LI, Guangsheng

Assignees

深圳市盛弘电气股份有限公司

Dates

Publication Date: 20260507
Application Date: 20251028
Priority Date: 20241030

Claims (8)

1. A DC power allocation method for charging piles based on chaotic topology, characterized by comprising the following steps: Based on user requirements, an initial chaotic topology allocation network for charging pile power is established based on a matrix topology network. By using a Gaussian kernel function, the dimension of the initial chaotic topology allocation network of the charging pile power is extended to a high-dimensional surface, resulting in a chaotic topology allocation network of the charging pile power with multiple charging nodes. Each charging node is equipped with a charging gun and a power conversion unit connected to the charging gun. Contactor switch units are set between nodes with connection relationships. Based on the chaotic topology of the charging pile power allocation network, the power demand of each charging gun and the power allocation strategy, the closing and opening of the contactor switch unit is controlled to control the power orientation of the power conversion unit output.
The DC power allocation method for charging piles based on chaotic topology as described in claim 1 is characterized in that, according to user requirements, the step of establishing a two-dimensional initial charging pile power topology network based on a matrix topology network includes: Based on the user's input of the number and arrangement requirements of charging guns, a charging pile power matrix topology allocation network is established. The charging pile power matrix topology allocation network includes multiple planar matrix nodes. Each node is equipped with a charging gun and a power conversion unit connected to the charging gun. A contactor switch unit is set between adjacent matrix nodes. The user-selected planar matrix nodes are edited with degrees of freedom. Contactor switch units are set between the user-selected planar matrix nodes and one or more of the remaining planar matrix nodes to establish a connection relationship, forming the two-dimensional initial charging pile power topology network.
The charging pile DC power allocation method based on chaotic topology as described in claim 1 is characterized in that the step of extending the dimension of the initial chaotic topology allocation network of the charging pile power to a high-dimensional surface through a Gaussian kernel function to obtain a chaotic topology allocation network of the charging pile power with multiple charging nodes includes: The Gaussian kernel function is used to expand the dimensionality of the initial chaotic topology allocation network for the charging pile power. Based on the maximum degrees of freedom of the charging nodes, the initial chaotic topology allocation network of the charging pile power after dimensional expansion is subjected to dimensionality reduction processing to obtain the chaotic topology allocation network of the charging pile power.
The DC power allocation method for charging piles based on chaotic topology as described in claim 3 is characterized in that the step of controlling the power guidance output of the power conversion unit by controlling the closing and opening of the contactor switch unit based on the chaotic topology power allocation network of the charging pile, the power demand of each charging gun, and the power allocation strategy includes: After one of the multiple charging guns is started, the contactor switch unit directly connected to the started charging gun is disconnected, and the power of the power conversion unit connected to the started charging gun is input to the started charging gun. When the power of the power conversion unit connected to the activated charging gun is less than the power required by the activated charging gun, the power chaotic topology allocation network of the charging pile searches for an available power conversion unit among the power conversion units connected to the charging node where the activated charging gun is located. When an available power conversion unit is found, the contactor switch unit between the charging node where the available power conversion unit is located and the charging node where the activated charging gun is located is closed, and the power of the available power conversion unit is input to the activated charging gun.
The DC power allocation method for charging piles based on chaotic topology as described in claim 4 is characterized in that it further includes: when the sum of the power of the power conversion unit connected to the activated charging gun and the power of all idle power conversion units is less than the required power of the activated charging gun, searching in the chaotic topology power allocation network of the charging pile for whether there is a second type of power conversion unit among the power conversion units connected to the charging node where the already occupied power conversion unit is located, wherein the second type of power conversion unit is a power conversion unit that has been occupied by other charging guns and whose utilization rate is lower than that occupied by the activated charging gun; when the second type of power conversion unit is found, closing the contactor switch unit between the charging node where the second type of power conversion unit is located and the charging node where the activated charging gun is located, and inputting the power of the second type of power conversion unit to the activated charging gun.
A DC power distribution system for charging piles based on chaotic topology, characterized in that it includes: The initial chaotic topology allocation network establishment module is used to establish an initial chaotic topology allocation network for charging pile power based on a matrix topology network, according to user requirements; and The dimension expansion module is used to expand the dimension of the initial chaotic topology allocation network of the charging pile power to a high-dimensional surface through a Gaussian kernel function, so as to obtain a chaotic topology allocation network of the charging pile power with multiple charging nodes. Each charging node is equipped with a charging gun and a power conversion unit connected to the charging gun. A contactor switch unit is set between nodes with connection relationship. The control module is used to control the power orientation of the power conversion unit by controlling the closing and opening of the contactor switch unit based on the chaotic topology distribution network of the charging pile power, the power demand of each charging gun and the power distribution strategy.
A charging pile, characterized in that the charging pile includes a DC power distribution system for charging piles based on chaotic topology as described in claim 6.
A DC power distribution device for charging piles based on chaotic topology is characterized in that it includes a processor and a memory, wherein the memory stores a computer program, and when the computer program is executed by the processor, it implements the steps of the DC power distribution method for charging piles based on chaotic topology as described in any one of claims 1 to 5.

Description

A DC power distribution method and system for charging piles based on chaotic topology Technical Field This invention relates to the field of charging pile technology, and in particular to a DC power distribution method and system for charging piles based on chaotic topology. Background Technology After charging begins, the charging pile controller requests charging data from all vehicles waiting to be charged. The charging pile dynamically calculates the power demand of each vehicle based on its own power unit output capacity and adjusts the real-time output power of each vehicle accordingly. During charging, the charging demand of each vehicle is still calculated in real time to avoid redundant startup and allocation of power units. Using an excellent power routing topology can improve the utilization efficiency of power modules, reduce equipment production costs, shorten vehicle charging time, and enhance the user charging experience. Current mainstream power routing topologies include linear allocation topology, ring allocation topology, star-ring allocation topology, and matrix allocation topology. However, all of these suffer from low power utilization or dead zones in supercharging power allocation, and cannot flexibly customize individual node degrees of freedom. Therefore, a new solution is needed. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort: Figure 1 shows a flowchart of a DC power allocation method for charging piles based on chaotic topology provided in an embodiment of the present invention; Figure 2 shows the charging pile power matrix topology allocation network established according to user needs; Figure 3 shows the expanded charging pile power matrix topology allocation network. Embodiments of the present invention To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Typical embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Figure 1 shows a flowchart of a DC power allocation method for charging piles based on chaotic topology according to an embodiment of the present invention. As shown in Figure 1, the DC power allocation method for charging piles based on chaotic topology provided by the present invention includes the following steps: Step S1: Based on user requirements, establish an initial chaotic topology allocation network for charging pile power based on a matrix topology network; Specifically, in one embodiment of the present invention, firstly, according to user requirements, the number and encoding of charging guns to be set in the system are confirmed, and these charging gun nodes are distributed on the nodes of a matrix grid for initialization, as shown in Figure 2, which is a matrix grid established according to user requirements, containing 16 charging guns. Then, in this matrix topology network of charging guns, the user selects the charging gun node with higher degrees of freedom from all the nodes mentioned above. Degrees of freedom refer to the number of other nodes that the node can connect to. For example, in the example shown in Figure 2, the degree of freedom of the node containing charging gun 13 is 4, the degree of freedom of the node containing charging gun 1 is 2, and the degree of freedom of the node containing charging gun 2 is 3. Finally, according to the user's selection, the degree of freedom of the nodes containing the charging guns is edited, that is, bridging nodes are added to the node towards more distant nodes. Increasing the number of bridging nodes increases the degree of freedom. The edited kilometer topology is shown in Figure 3. After editing, the degree of freedom of the node containing charging gun 13 is 7, the degree of freedom of the node containing charging gun 1 is 3, and the degree of freedom of the node containing charging gun 2 is 5. Therefore, step S1 includes: Based on the user's input of the number and arrangement requirements of charging guns, a charging pile power mat