Charging pile based on matrix power routing network

Abstract

The invention discloses a charging pile based on a matrix power routing network, which is characterized in that all charging guns are arranged on edge nodes of the matrix power routing network, each charging gun is connected with a power conversion unit, and meanwhile, the power conversion units are arranged on internal nodes of the matrix power routing network as required; a contactor switch unit is arranged between every two nodes of the matrix power routing network, and a control module is used for controlling on and off of the contactor switch units according to the required power of each charging gun and a power distribution strategy so as to control guiding of power output by a power conversion unit; therefore, efficient power flexible scheduling can be realized, any input-to-any output loop is connected, and all power conversion units can meet the maximum output utilization rate.

Description

Technical Field

[0001] The present invention relates to the technical field of charging piles, and in particular to a charging pile based on a matrix power routing network. Background Art

[0002] The development trend of new energy charging output power from slow charging to fast charging, super charging, and second charging is already very clear, and the continuous increase in the upper limit of power output is still the development trend of the charging pile industry. The technical bottleneck for continuously improving the upper limit of the output of charging piles lies in the allocation strategy of the charging pile power unit. An excellent power routing topology can improve the utilization rate of the power conversion unit and reduce the production cost of the equipment.

[0003] The current mainstream power routing topologies include linear distribution topology, ring distribution topology, and star-ring distribution topology. The linear power distribution topology has the advantages of low manufacturing cost and simple implementation, but it can only achieve freedom in two directions, left and right, in terms of power distribution freedom. The poor power freedom also causes power waste. The ring power distribution topology is based on linear connection, and compared with the linear topology mode, it still cannot be freely distributed, resulting in low power utilization. The star-ring power routing topology is a partial optimization based on the ring power distribution. By adding crossovers to the ring nodes, the power unit has additional degrees of freedom. However, this method of increasing the degree of freedom by increasing the number of switches cannot guarantee the high-power output mode of the super charging gun, and the shortcomings of the star-ring topology's own path dead ends still exist.

[0004] Based on this, a new solution is needed. Summary of the invention

[0005] The main purpose of the present invention is to provide a charging pile based on a matrix power routing network to address the problems of low power utilization and dead spots in supercharging power allocation in existing power routing topologies.

[0006] To achieve the above-mentioned object, the present invention provides a charging pile based on a matrix power routing network, the charging pile comprising X charging guns, Y power conversion units, Z contactor switch units and a control module, the matrix power routing network comprising M*N nodes, every two nodes being connected through the contactor switch unit, the X charging guns being arranged on edge nodes of the matrix power routing network and each charging gun being connected to a power conversion unit, the power conversion unit being also arranged on an internal node of the matrix power routing network, wherein Y is less than or equal to M*N and X is equal to M*N-(M-2)*(N-2), the control module controlling the closing and opening of the contactor switch unit according to the required power of each charging gun and the power allocation strategy to control the power orientation output by the power conversion unit.

[0007] In the charging pile based on the matrix power routing network provided by the present invention, there are L super charging guns among the X charging guns and L is less than or equal to X-4, and the super charging gun is arranged on a non-vertex edge node of the matrix power routing network.

[0008] In the charging pile based on the matrix power routing network provided by the present invention, after one of the Y charging guns is started, the control module disconnects the contactor switch unit directly connected to the started charging gun, and inputs the power of the power conversion unit connected to the started charging gun to the started charging gun.

[0009] In the charging pile based on the matrix power routing network provided by the present invention, when the started charging gun is an ordinary charging gun, the control module searches whether there is an idle power conversion unit among the power conversion units located at the four nodes above, below, left and right of the started charging gun when the power of the power conversion unit connected to the started charging gun is less than the required power of the started charging gun. When an idle power conversion unit is found, the contactor switch unit between the node where the idle power conversion unit is located and the node where the started charging gun is located is closed, and the power of the idle power conversion unit is input to the started charging gun.

[0010] In the charging pile based on the matrix power routing network provided by the present invention, when the sum of the power of the power conversion unit connected to the started charging gun and the power of all idle power conversion units is less than the required power of the started charging gun, the control module searches whether there is a second-type power conversion unit among the power conversion units located at the four nodes above, below, left and right of the occupied power conversion unit. The second-type power conversion unit is a power conversion unit that has been occupied by other charging guns and has a lower utilization rate than the power conversion unit occupied by the started charging gun. When the second-type power conversion unit is searched, the contactor switch unit between the node where the second-type power conversion unit is located and the node where the started charging gun is located is closed, and the power of the second-type power conversion unit is input to the started charging gun.

[0011] In the charging pile based on the matrix power routing network provided by the present invention, when the started charging gun is a super charging gun, the control module closes the contactor switch unit between the node where the power conversion unit is located on the central axis where the started charging gun is located and the node where the started charging gun is located when the power of the power conversion unit connected to the started charging gun is less than the required power of the started charging gun, and inputs the power of the power conversion unit located on the central axis to the started charging gun.

[0012] In the charging pile based on the matrix power routing network provided by the present invention, when the power conversion unit located on the central axis where the started charging gun is located has been occupied by an ordinary charging gun, the contactor switch unit between the node where the occupied power conversion unit is located and the node where the ordinary charging gun is located is disconnected, and then the contactor switch unit between the node where the occupied power conversion unit is located and the node where the started charging gun is located is closed, and the power of the occupied power conversion unit is input to the started charging gun.

[0013] In the charging pile based on the matrix power routing network provided by the present invention, when the power conversion unit located on the central axis where the started charging gun is located has been occupied by other super charging guns, the control module closes the contactor switch unit between the node where the occupied power conversion unit is located and the node where the started charging gun is located, and inputs the power of the occupied power conversion unit to the started charging gun when the utilization rate of the power conversion unit by the started charging gun is higher than the utilization rate of the power conversion unit by other super charging guns.

[0014] In the charging pile based on the matrix power routing network provided by the present invention, when multiple charging guns obtain the control right of the same power conversion unit, the control module allocates the control right of the power conversion unit according to the priority of each charging gun.

[0015] The charging pile based on the matrix power routing network provided by the present invention has the following beneficial effects: the present invention proposes a charging pile based on the matrix power routing network, all charging guns are arranged on the edge nodes of the matrix power routing network and each charging gun is connected to a power conversion unit, and at the same time, the power conversion unit is arranged on the internal nodes of the matrix power routing network as needed, and then a contactor switch unit is arranged between every two nodes of the matrix power routing network, and the power output of the power conversion unit is controlled by controlling the closing and opening of the contactor switch unit according to the required power of each charging gun and the power allocation strategy through the control module; thereby, efficient power flexible scheduling can be achieved, and a loop connecting any input to any output can meet the maximum output utilization rate of all power conversion units. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work:

[0017] Figure 1The figure shows a schematic diagram of a charging pile based on a matrix power routing network provided in one embodiment of the present invention. DETAILED DESCRIPTION

[0018] In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Typical embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0020] The general idea of ​​the present invention is: in view of the problem that the free scheduling of any power conversion unit cannot be realized in the prior art and the power utilization rate is low, the present invention proposes a charging pile based on a matrix power routing network, all charging guns are arranged on the edge nodes of the matrix power routing network and each charging gun is connected to a power conversion unit, and at the same time, power conversion units are arranged on the internal nodes of the matrix power routing network as needed, and then a contactor switch unit is arranged between every two nodes of the matrix power routing network, and the power output of the power conversion unit is controlled by controlling the closing and opening of the contactor switch unit according to the required power of each charging gun and the power allocation strategy through the control module; thereby, efficient power flexible scheduling can be achieved, and a loop connecting any input to any output can meet the maximum output utilization rate of all power conversion units.

[0021] In order to better understand the above-mentioned technical scheme, the above-mentioned technical scheme will be described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the embodiments of the present invention and the specific features in the embodiments are detailed descriptions of the technical scheme of the present application, rather than limitations on the technical scheme of the present application. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other.

[0022] The present invention provides a charging pile based on a matrix power routing network, the charging pile includes X charging guns, Y power conversion units, Z contactor switch units and a control module, the matrix power routing network includes M*N nodes, every two nodes are connected through the contactor switch unit, the X charging guns are arranged on the edge nodes of the matrix power routing network, and each charging gun is connected to a power conversion unit, the power conversion unit is also arranged on the internal node of the matrix power routing network, wherein Y is less than or equal to M*N and X is equal to M*N-(M-2)*(N-2), the control module controls the closing and opening of the contactor switch unit according to the required power of each charging gun and the power allocation strategy, so as to control the power orientation output by the power conversion unit. Among the X charging guns, there are L super charging guns and L is less than or equal to X-4, and the super charging gun is arranged on the non-vertex edge node of the matrix power routing network. For example, the matrix power routing network includes 5*4 nodes, then the charging pile includes 14 charging guns and they are respectively arranged on the four edges of the matrix power routing network, wherein the four vertices of the matrix power routing network are set with ordinary charging guns, and the remaining edge nodes can be set with ordinary charging guns or super charging guns, which can be selected by the user according to actual needs. A power conversion unit is set on each of the 14 nodes at the edge of the matrix power routing network, and the 6 internal nodes can choose to set or not set the power conversion unit as needed.

[0023] Below Figure 1 Taking the figure as an example, the working principle of the charging pile based on the matrix power routing network provided by the present invention is described in detail. Figure 1 As shown in the figure, KMx represents the code of the contactor switch unit, and Mx above the circle represents the code of the power conversion unit (AC rectified to DC). The main function of the contactor switch unit is to guide the power output of the power conversion unit to different paths for convergence. The main function of the power conversion unit is to convert the AC power in the power grid into DC power, which is finally converged to the charging gun to charge the battery. Figure 1As shown, the matrix power routing network includes 5*4 nodes, and the charging pile includes 14 charging guns (numbered 1 gun, 2 guns, ... 14 guns) respectively arranged on the four edges of the matrix power routing network, wherein 3 guns, 6 guns, 10 guns and 11 guns arranged at the four vertices of the matrix power routing network and 13 guns and 14 guns located at the edge nodes are ordinary charging guns, and 1 gun, 2 guns, 4 guns, 7 guns, 8 guns, 9 guns, and 12 guns arranged at the remaining edge nodes are super charging guns, and a power conversion unit is set at each node where the super charging gun is located (for example, the node where the 3 gun is located is provided with a power conversion unit M3). At the same time, power conversion units M5, M6, M17, and M18 are set at the internal nodes of the matrix power routing network (i.e., the positions of non-edge nodes), and a contactor switch unit is used to control the on-off between every two nodes.

[0024] When the system is initially running, first, set the charging gun number, power conversion unit number, and contactor switch unit number of all nodes in the matrix power routing network to complete the topology network initialization. Then, enter the required power of all charging guns (for example, 3 guns as ordinary charging guns have a required power of 60w, and 1 gun as a super charging gun has a required power of 120w) and the priority of each charging gun. The priority here is divided according to the charging mark of each charging gun. For example, the charging mark of 3 guns is 1 yuan per hour, and the charging standard of 6 guns is 1.5 yuan per hour. When both need to use the same power conversion unit at the same time, the 6 guns with high priority are connected first. Subsequently, the power routing network state is adjusted according to whether each charging gun is started or not and the charging distribution strategy of the system, and the power required by the charging gun is output.

[0025] Specifically, after a charging gun is started, the control module first disconnects the contactor switch unit directly connected to the started charging gun, and inputs the power of the power conversion unit connected to the started charging gun to the started charging gun. Figure 1 As shown, after detecting that gun No. 14 is started, the control module disconnects the contactor switch units KM2, KM3, and KM17 connected to gun No. 14 to ensure that the power of the power conversion unit M13 connected to gun No. 14 is input to gun No. 14; after detecting that gun No. 3 is started, the control module disconnects the contactor switch units KM1 and KM5 connected to gun No. 3 to ensure that the power of the power conversion unit M3 connected to gun No. 3 is input to gun No. 3.

[0026] Furthermore, since the power requirements of each charging gun are different, the power input by a single power conversion unit may not be able to meet its requirements, that is, when the power of the power conversion unit connected to the activated charging gun is less than the power requirements of the activated charging gun, it is necessary to connect other power conversion units in the matrix routing network to provide power for it. The control module first determines whether the activated charging gun is an ordinary charging gun or a super charging gun. When the activated charging gun is an ordinary charging gun, the control module searches for idle power conversion units in the power conversion units located at the four nodes above, below, left and right of the activated charging gun. When an idle power conversion unit is found, the contactor switch unit between the node where the idle power conversion unit is located and the node where the activated charging gun is located is closed, and the power of the idle power conversion unit is input to the activated charging gun. When the sum of the power of the power conversion unit connected to the started charging gun and the power of all idle power conversion units is less than the required power of the started charging gun, the control module continues to search whether there is a second-type power conversion unit among the power conversion units located at the four nodes above, below, left and right of the occupied power conversion unit. The second-type power conversion unit is occupied by other charging guns and has a lower utilization rate than the power conversion unit occupied by the started charging gun. When the second-type power conversion unit is searched, the contactor switch unit between the node where the second-type power conversion unit is located and the node where the started charging gun is located is closed to input the power of the second-type power conversion unit into the started charging gun.

[0027] For example, in Figure 1In the example shown, after gun No. 3 with a required power of 60kw is started, the power conversion unit M3 connected to gun No. 3 can only provide 20kw of power, which cannot meet the power demand of gun No. 3. Therefore, the control module searches for power conversion units M11 and M9 located on the right and bottom sides of charging gun No. 3 respectively to determine whether they are idle. If the power conversion unit M11 is idle and M9 is occupied at this time, the control module closes the contactor switch unit KM5 between the node where the power conversion unit M11 is located and the node where the charging gun No. 3 is located, and the power of the power conversion unit M11 is input to the charging gun No. 3. Since the power that M11 can provide is only 20kw, which still cannot meet the power demand of gun No. 3, it can continue to Continue to search for power conversion units M13 and M5 located on the right and bottom sides of the node where power conversion unit M11 is located, and determine whether they are idle. If power conversion unit M13 is idle and M5 is occupied at this time, the control module closes the contactor switch unit KM2 between the node where power conversion unit M11 is located and power conversion unit M13, and inputs the power of power conversion unit M13 to charging gun No. 3; and so on. Before the power demand of charging gun No. 3 is met, all idle power conversion units in the entire matrix power routing network are searched in turn, and the contactor switches between all searched idle power conversion units are closed, so that these idle power conversion units can output power to charging gun No. 3. Furthermore, after charging gun No. 3 occupies the idle power conversion unit, it still cannot reach the expected output power. Since the power conversion unit M9 is occupied by other charging guns (for example, charging gun No. 10) at this time, the utilization rate of charging gun No. 10 on the power conversion unit M9 and the utilization rate of charging gun No. 3 on the power conversion unit M9 are calculated respectively. If the utilization rate of charging gun No. 10 on the power conversion unit M9 is lower than the utilization rate of charging gun No. 3 on the power conversion unit M9 (for example, charging gun No. 10 only needs to obtain 10w of power from the power conversion unit M9 at this time, while charging gun No. 3 needs to obtain 15kw of power from the power conversion unit M9 at this time) and the priorities of the two are the same, then the contactor switch unit KM5 between the node where the power conversion unit M9 is located and the node where charging gun No. 3 is located is closed, and the contactor switch unit (which may be KM10 or KM14) connected to the power conversion unit M9 on the routing loop of charging gun No. 10 is disconnected, and the power of the power conversion unit M9 is input to charging gun No. 3.

[0028] Furthermore, when the started charging gun is a super charging gun, the control module closes the contactor switch unit between the node where the power conversion unit is located on the central axis where the started charging gun is located and the node where the started charging gun is located when the power of the power conversion unit connected to the started charging gun is less than the required power of the started charging gun, and inputs the power of the power conversion unit on the central axis to the started charging gun. When the power conversion unit located on the central axis where the started charging gun is located has been occupied by an ordinary charging gun, the contactor switch unit between the node where the occupied power conversion unit is located and the node where the ordinary charging gun is located is disconnected, and then the contactor switch unit between the node where the occupied power conversion unit is located and the node where the started charging gun is located is closed, and the power of the occupied power conversion unit is input to the started charging gun; when the power conversion unit located on the central axis where the started charging gun is located has been occupied by other super charging guns, the control module closes the contactor switch unit between the node where the occupied power conversion unit is located and the node where the started charging gun is located when the utilization rate of the power conversion unit by the started charging gun is higher than the utilization rate of the other super charging guns, and the power of the occupied power conversion unit is input to the started charging gun.

[0029] In the present invention, the super charging gun is located on the center line of the topology diagram and has a higher degree of freedom. After starting, the super charging gun will search in the direction of the central axis first. If the central axis is occupied by an ordinary charging gun, the power unit on the central axis will be allocated to the super charging gun first according to the super charging gun priority principle. This process sacrifices the power of the ordinary charging gun and gives priority to the super charging gun. This can overcome the problem of power allocation dead angles, especially when the super charging pile has a high power demand. This topology can effectively take into account the cost, power freedom and priority conflicts between super charging and ordinary charging guns for the mixed scheduling power model of ordinary charging guns and super charging guns.

[0030] For example, in Figure 1In the example shown, the central axis refers to the line formed by the nodes where power conversion units M9, M5, M17, and M7 are located, the line formed by the nodes where power conversion units M10, M6, M18, and M8 are located, the line formed by the nodes where power conversion units M2, M5, M6, and M12 are located, and the line formed by the nodes where power conversion units M1, M17, M18, and M16 are located. After gun No. 4 with a required power of 120kw is started, since the power conversion unit M9 connected to gun No. 4 can only provide 20kw of power, it cannot meet the power demand of gun No. 4. Therefore, the control module closes the contactor switch unit KM10 between the node where the power conversion unit M5 is located on the central axis of charging gun No. 4 and the node where charging gun No. 4 is located, and inputs the power of power conversion unit M5 to charging gun No. 4; if the power conversion unit M5 is already occupied by charging gun No. 3 at this time, the contactor switch unit (for example, KM6) between the node where the power conversion unit M5 is located and the routing loop of charging gun No. 3 is first disconnected and then the contactor switch unit KM10 is closed to give priority to the power demand of the super charging gun; if the power conversion unit M5 is already occupied by charging gun No. 5 at this time, the utilization rate and utilization rate of charging gun No. 5 for power conversion unit M5 are calculated respectively. The utilization rate of the power conversion unit M5 by charging gun No. 4. If the utilization rate of the power conversion unit M5 by charging gun No. 5 is lower than that by charging gun No. 4 (for example, charging gun No. 5 only needs to obtain 10w of power from the power conversion unit M5 at this time, while charging gun No. 4 needs to obtain 15kw of power from the power conversion unit M5 at this time) and the priorities of the two are the same, then the contactor switch unit KM10 between the node where the power conversion unit M5 is located and the node where charging gun No. 4 is located is closed, and at the same time, the contactor switch unit KM11 connected to the power conversion unit M5 on the routing loop of charging gun No. 5 is disconnected, and the power of the power conversion unit M5 is input to charging gun No. 4; and so on, before the power demand of charging gun No. 4 is met, all the power conversion units on the central axis are connected in sequence, so that these power conversion units can output power to charging gun No. 4.

[0031] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0032] Similarly, it should be understood that in order to streamline the present disclosure and aid in understanding one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, various features of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed method should not be interpreted as reflecting the intention that the claimed invention requires more features than those explicitly recited in each claim. More specifically, as reflected in the claims below, inventive aspects lie in less than all the features of the individual embodiments disclosed above. Therefore, the claims that follow the specific embodiment are hereby expressly incorporated into the specific embodiment, with each claim itself serving as a separate embodiment of the present invention.

[0033] In addition, those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims below, any one of the claimed embodiments may be used in any combination.

[0034] It should be noted that the above embodiments illustrate the present invention rather than limit it, and that those skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets shall not be construed as a limitation on the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention may be implemented by means of hardware comprising a number of different elements and by means of a suitably programmed computer. In a unit claim enumerating a number of devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc., does not indicate any order. These words may be interpreted as names.

Claims

1. A charging pile based on a matrix power routing network, characterized in that: The charging pile includes X charging guns, Y power conversion units, Z contactor switch units and a control module. The matrix power routing network includes M*N nodes, and every two nodes are connected through the contactor switch unit. The X charging guns are arranged on the edge nodes of the matrix power routing network and each charging gun is connected to a power conversion unit. The power conversion unit is also arranged on the internal node of the matrix power routing network, wherein Y is less than or equal to M*N and X is equal to M*N-(M-2)*(N-2). The control module controls the closing and opening of the contactor switch unit according to the required power of each charging gun and the power allocation strategy to control the power direction output by the power conversion unit.

2. The charging pile based on the matrix power routing network as claimed in claim 1, characterized in that: Among the X charging guns, there are L super charging guns and L is less than or equal to X-4. The super charging guns are arranged on non-vertex edge nodes of the matrix power routing network.

3. The charging pile based on the matrix power routing network as claimed in claim 2, characterized in that: After one of the Y charging guns is started, the control module disconnects the contactor switch unit directly connected to the started charging gun, and inputs the power of the power conversion unit connected to the started charging gun to the started charging gun.

4. The charging pile based on the matrix power routing network as claimed in claim 3, characterized in that: When the started charging gun is an ordinary charging gun, the control module searches whether there is an idle power conversion unit among the power conversion units located at the four nodes of the upper, lower, left and right of the started charging gun when the power of the power conversion unit connected to the started charging gun is less than the required power of the started charging gun. When an idle power conversion unit is found, the contactor switch unit between the node where the idle power conversion unit is located and the node where the started charging gun is located is closed, and the power of the idle power conversion unit is input to the started charging gun.

5. The charging pile based on the matrix power routing network as claimed in claim 4, characterized in that: When the sum of the power of the power conversion unit connected to the started charging gun and the power of all idle power conversion units is less than the required power of the started charging gun, the control module searches whether there is a second-type power conversion unit among the power conversion units located at the four nodes above, below, left and right of the occupied power conversion unit. The second-type power conversion unit is a power conversion unit that is occupied by other charging guns and has a lower utilization rate than the power conversion unit occupied by the started charging gun. When the second-type power conversion unit is searched, the contactor switch unit between the node where the second-type power conversion unit is located and the node where the started charging gun is located is closed to input the power of the second-type power conversion unit into the started charging gun.

6. The charging pile based on the matrix power routing network as claimed in claim 3, characterized in that: When the started charging gun is a super charging gun, the control module closes the contactor switch unit between the node where the power conversion unit is located on the central axis where the started charging gun is located and the node where the started charging gun is located when the power of the power conversion unit connected to the started charging gun is less than the required power of the started charging gun, and inputs the power of the power conversion unit on the central axis to the started charging gun.

7. The charging pile based on the matrix power routing network as claimed in claim 6, characterized in that: When the power conversion unit located on the central axis of the started charging gun is occupied by an ordinary charging gun, the contactor switch unit between the node where the occupied power conversion unit is located and the node where the ordinary charging gun is located is disconnected, and then the contactor switch unit between the node where the occupied power conversion unit is located and the node where the started charging gun is located is closed to input the power of the occupied power conversion unit into the started charging gun.

8. The charging pile based on matrix power routing network as claimed in claim 6, characterized in that: When the power conversion unit located on the central axis of the started charging gun has been occupied by other super charging guns, the control module closes the contactor switch unit between the node where the occupied power conversion unit is located and the node where the started charging gun is located when the utilization rate of the power conversion unit by the started charging gun is higher than the utilization rate of the power conversion unit by other super charging guns, and inputs the power of the occupied power conversion unit into the started charging gun.

9. A charging pile based on a matrix power routing network as claimed in any one of claims 1 to 8, characterized in that: When multiple charging guns obtain the control right of the same power conversion unit, the control module allocates the control right of the power conversion unit according to the priority of each charging gun.

Images