A double-gun alternating current charging pile cluster management and charging method

Abstract

The application discloses a kind of double-gun AC charging pile cluster management and charging method, and receiving power adjustment mode is mode one, fixed power mode is mode two, S1: selected charging mode is sent to RTU;S2: RTU calculates P all , if P all + single gun power maximum value ≤ P max , output, if P all + single gun power maximum value > P max , enter S3;S3: RTU is adjusted according to charging mode to power;S4 and S5: calculate P 调整 according to different mode;S6: calculate I1 and judge whether it satisfies charging pile starting condition, if it satisfies, enter S7, if it does not satisfy, enter S8;S7: use CP control to adjust charging power to P 调整 when reporting RTU, according to different mode, corresponding charging method is used;S8: according to different mode, corresponding charging method is used;S9: report management platform to generate charging order.The application is realized by using RTU to simplify the design of charging pile, save management platform data processing, and the number of double-gun charging piles installed is no longer limited to the remaining charge of charging station.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of charging piles, in particular to a double-gun alternating current charging pile cluster management and charging method. BACKGROUND

[0002] With the popularity of electric vehicles, the demand for alternating current charging piles is also increasing. However, the current problem is that the number of charging piles is insufficient, and as the number of electric vehicles increases, the existing charging piles have been unable to meet the demand, and many oil cars occupy the space, park but do not charge, making it difficult for users to find available charging piles. Secondly, the existing alternating current charging piles on the market are mostly fixed at 7kW charging power, and the remaining available power load in many communities, shopping malls and other places is not enough to support the construction of enough charging piles. This phenomenon not only affects the charging experience of electric vehicle users, but also restricts the development of electric vehicles. How to use limited power resources to solve the charging problem for more new energy vehicle owners has become a problem to be solved. SUMMARY

[0003] The present application aims at the above-mentioned deficiencies, and proposes a double-gun alternating current charging pile cluster management and charging method, which is completed by a cluster management module RTU to report data of double-gun charging piles and management platform, adjusts power and user charging sequence according to the use of double-gun charging piles in the entire charging station, thereby simplifying the design of charging piles, saving management platform data processing, and the number of installed double-gun charging piles is no longer limited by the remaining power of the charging station.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a double-gun alternating current charging pile cluster management and charging method, comprising a plurality of double-gun charging piles, a cluster management module RTU, and a management platform, the charging mode includes an accepted power adjustment mode and a fixed power charging mode, comprising the following steps:

[0005] S1: after the user completes the selection of the charging mode, the start information is issued to the cluster management module RTU;

[0006] S2: the cluster management module RTU calculates the total charging power P of the current charging station all , if P all + single-gun power maximum value <= P max , directly start the double-gun charging pile gun head to output externally, and after successful start, report the charging information to the management platform, if P all + single-gun power maximum value > P max , enter step S3;

[0007] S3: The cluster management module RTU issues different charging power to the double-gun charging pile requesting charging according to the charging mode, and adjusts the power of other double-gun charging piles in the charging station. If it is the accepted power adjustment mode, P 调整 = (P max - fixed charging power * N 固定 ) / (N 总 - N 固定 + 1), and if it is the fixed power charging mode, P 调整 = [P max - fixed charging power * (N 固定 + 1)] / [N 总 - (N 固定 + 1)];

[0008] S4: The charging current I1 = P 调整 / charging voltage U, and it is determined whether the current charging current I1 meets the double-gun charging pile starting condition. If it meets, it goes to S5, and if it does not meet, it goes to S6;

[0009] S5: If it is the accepted power adjustment mode, the power adjustment command of the cluster management module RTU is received. When the charging power is adjusted to P 调整 , the cluster management module RTU is reported. After the power adjustment of all double-gun charging piles in the accepted power adjustment mode is completed, charging is started using the corresponding charging power. If it is the fixed power mode, the charging power of the double-gun charging pile in the fixed power mode remains unchanged. The rest of the double-gun charging piles in the charging station that select the accepted power adjustment mode receive the power adjustment command of the cluster management module RTU. When the charging power is adjusted to P 调整 , the cluster management module RTU is reported. After the power adjustment of all double-gun charging piles in the accepted power adjustment mode is completed, the cluster management module RTU starts the corresponding gun head of the double-gun charging pile requesting charging and issues the charging power as the fixed charging power, and goes to step S7;

[0010] S6: If it is the accepted power adjustment mode, the user needs to wait for the completion of charging of the rest of the double-gun charging piles in the station. When the starting charging condition is met, the cluster management module RTU controls the double-gun charging pile to start charging. If it is the fixed power mode, the cluster management module RTU controls to close a number of double-gun charging piles that select the accepted power adjustment mode and enter the charging waiting state. The cluster management module RTU starts the double-gun charging pile in the fixed power mode to start charging. When a double-gun charging pile ends charging, the cluster management module RTU controls the double-gun charging pile in the waiting state to start charging. The charging power P 调整 = (P max - fixed charging power * N 固定 ) / (N 总 - N 固定 ), and goes to step S7;

[0011] S7: start charging information reporting management platform, and the management platform generates a charging order.

[0012] Compared with the prior art, the application has the advantages that:

[0013] By using the cluster management module RTU to manage all double-gun charging piles in the local charging station, the networking module such as a 4G module, a WIFI module and a wired network module can be saved in the double-gun charging pile design, the data reporting of the double-gun charging pile and the management platform is completed by the cluster management module RTU, the production cost of the double-gun charging pile is greatly saved, meanwhile, the data processing quantity of the management platform is saved, and the risk of data loss is reduced.

[0014] The power of the double-gun charging pile is no longer limited to a fixed power, but is adjusted according to the use of the double-gun charging pile in the entire charging station, and the total power of the charging station is calculated by the cluster management module RTU to ensure the safety of power use, so that the number of installed double-gun charging piles is no longer limited by the remaining charge of the charging station, so that more double-gun charging piles can be installed under the condition that the power load is unchanged, to solve the problems of occupied charging spaces and full-charged electric vehicles not leaving.

[0015] When there are many charging users and the load of the charging station does not meet the charging of all users at the same time, the cluster management module RTU will start the charging queuing mechanism, the users who select the power adjustment mode cannot be charged immediately after plugging in, but can join the queuing queue, and when other double-gun charging piles complete charging, the cluster management module RTU will start the double-gun charging piles in the queuing queue in turn.

[0016] As an improvement, when the user selects the power adjustment mode, the original price is charged, and when the user selects the fixed charging power mode, an additional fee is added based on the original price, so that the charging is more humanized under different charging standards, and the fixed charging power mode can be used in an emergency, at which time an additional fee is charged, but the user can be fully charged in the shortest time. When the user is not in an emergency, the power adjustment mode is selected, no additional fee is charged, and the normal charging is charged according to the charging electricity quantity.

[0017] As an improvement, the start information includes a start command, a station number, a charging pile number, a gun head number and user selection information, and the charging information includes charging voltage, charging current, charging power, charging time length and charging fee, so that the cluster management module RTU manages the double-gun charging pile under the corresponding information, and the charging information is convenient for the cluster management module RTU to make corresponding power adjustment of the double-gun charging pile.

[0018] As an improvement, the double-gun charging pile includes two independent charging modules, a first power input module, the charging module includes an output control module, a CP control guide module, a voltage and current acquisition module, a gun head wake-up module, a leakage detection module, an RGB display module, a first microprocessor module, a first 485 communication module, one end of the output control module, the CP control guide module, the voltage and current acquisition module, the gun head wake-up module, the leakage detection module, the RGB display module and the 485 communication module is connected with the first microprocessor module, one end of the input control module is also connected with the other end of the leakage detection module, the other end of the input control module is connected with the other end of the voltage and current acquisition module, one end of the first power input module is connected with the other end of the leakage detection module, so that the two gun heads of the double-gun charging pile work at the same time and are not disturbed, and the detection and management of the two gun heads at the same time are facilitated.

[0019] As an improvement, the cluster management module RTU includes a second power input module, a second microprocessor module, a DC isolation module, a 4G module, a wired network module, a second 485 communication module and a WIFI module, one end of the second power input module, the 4G module, the wired network module, the second 485 communication module and the WIFI module is connected with the second microprocessor module, one end of the DC isolation module is connected with the second power input module, the other end of the DC isolation module is connected with one end of the second 485 communication module, the cluster management module RTU not only completes the data connection between the charging station and the platform through each module, but also is responsible for distributing the power of the charging station, completes the complex calculation locally, and reduces the data sending and operation of the platform.

[0020] As an improvement, the double-gun charging pile and the management platform include charging pile equipment information configuration, charging pile environmental variable management, charging pile program version management, charging station operation management, and charging order generation and management, through each management module, the staff can conveniently monitor and operate the double-gun charging pile and the management platform in real time.

[0021] As an improvement, after the construction of the charging station is completed, the maximum power of the charging station is set on the double-gun charging pile and the management platform, P max is input, the management platform sends P max data to the cluster management module RTU according to the protocol, so as to facilitate the cluster management module RTU to compare the current charging total power P all and P max of the charging station. BRIEF DESCRIPTION OF DRAWINGS

[0022] The application will be further described in detail below in combination with the drawings and specific embodiments:

[0023] Figure 1It is a schematic diagram of connection relationship of a double-gun alternating current charging pile cluster management device;

[0024] Figure 2 It is a schematic diagram of connection relationship of a double-gun charging pile module;

[0025] Figure 3 It is a schematic diagram of connection relationship of a cluster management module RTU module;

[0026] Figures 4-5 It is a schematic diagram of a double-gun alternating current charging pile cluster management and charging method flow. DETAILED DESCRIPTION

[0027] In the present application, it is understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "planar direction", "circumferential direction" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0028] As shown in Figure 1 , several double-gun charging piles and a cluster management module RTU form a charging station, the cluster management module RTU performs cluster management on all double-gun charging piles of the charging station, a single double-gun charging pile does not have the ability to connect to the management platform, the double-gun charging pile completes information interaction with the cluster management module RTU through the 485 protocol, the cluster management module RTU reports the information of each double-gun charging pile to the management platform through the network protocol, the management platform and the charging app are connected through the protocol, when the user uses the charging app to scan the corresponding double-gun charging pile to start charging, the charging app reports the corresponding charging pile number and gun head number to the double-gun charging pile and the management platform, the management platform sends the charging pile number and gun head number and the start command to the cluster management module RTU and generates a charging order, the cluster management module RTU starts charging according to the platform command, the double-gun charging pile reports the charging voltage, charging current, charging power and charging time data to the cluster management module RTU after charging, the cluster management module RTU reports to the management platform, and then sends the data to the charging app for display.

[0029] As shown in Figure 2As shown, the double-gun charging pile includes two independent charging modules, a first power input module, the charging module includes an output control module, a CP control guide module, a voltage and current acquisition module, a gun head wake-up module, a leakage detection module, an RGB display module, a first microprocessor module, a first 485 communication module, one end of the output control module, the CP control guide module, the voltage and current acquisition module, the gun head wake-up module, the leakage detection module, the RGB display module, and the 485 communication module is connected with the first microprocessor module, one end of the input control module is also connected with the other end of the leakage detection module, the other end of the input control module is connected with the other end of the voltage and current acquisition module, one end of the first power input module is connected with the other end of the leakage detection module.

[0030] As shown in the Figure 3 As shown, the cluster management module RTU includes a second power input module, a second microprocessor module, a DC isolation module, a 4G module, a wired network module, a second 485 communication module, a WIFI module, an LED indicator, a debugging serial port, and an isolation circuit, the second power input module converts 12V voltage to 5V and connects one end of the DC isolation module, the second power input module converts 12V voltage to 5V and 5V to 3.3V, one end of the 4G module, the wired network module, the isolation circuit, the WIFI module, the LED indicator, and the debugging serial port are connected with the second microprocessor module, the other end of the DC isolation module and the isolation circuit are connected with one end of the second 485 communication module.

[0031] As shown in the Figures 4-5 As shown, S1: the user opens the charging applet, scans and selects the corresponding gun of the double-gun charging pile;

[0032] S2: after scanning, the user selects the charging mode through the charging applet, the charging mode includes the accepted power adjustment mode and the fixed power charging mode, when the user selects the accepted power adjustment mode, the original price is charged, when the user selects the fixed charging power mode, additional charges are added based on the original price;

[0033] S3: after the user selects the charging mode, the charging applet sends the information to the management platform, and after the management platform processes, the start command, the station number, the charging pile number, the gun head number, and the user selection information are sent to the cluster management module RTU of the corresponding charging station;

[0034] S4: after the cluster management module RTU receives the start information, the current charging station charging total power P all is calculated, and P all + the maximum single-gun power is compared with P max , if P all + the maximum single-gun power ≤ Pmax , the cluster management module RTU does not need to adjust the charging power of other double-gun charging piles, directly starts the double-gun charging pile gun head requesting charging to start outputting externally, the charging power is the maximum single-gun power, and a charging order is generated after successful starting, records the charging voltage, charging current, charging power, charging time, and charging cost and reports the management platform. If the charging order selects a fixed charging power, the charging power remains unchanged during the charging process. If the selection accepts the power adjustment mode, the charging power may decrease if the number of charging users increases during the charging process. If P all + maximum single-gun power > P max , step S5 is entered;

[0035] S5: The cluster management module RTU issues different charging powers to the double-gun charging pile requesting charging according to the user's selection of the charging mode, and adjusts the power of other double-gun charging piles in the charging station. If the user selects the power adjustment mode, step S6 is entered. If the user selects the fixed power charging mode, step S7 is entered.

[0036] S6: The cluster management module RTU calculates the charging power of the double-gun charging pile gun head accepting the power adjustment mode according to the number N 总 of double-gun charging pile gun heads currently charging and the number N 固定 of gun heads selecting the fixed power charging, and the charging power P 调整 = (P max - fixed charging power * N 固定 ) / (N 总 - N 固定 + 1), and step S8 is entered.

[0037] S7: The cluster management module RTU calculates the charging power of the double-gun charging pile gun head accepting the power adjustment mode according to the number N 总 of double-gun charging pile gun heads currently charging and the number N 固定 of gun heads selecting the fixed power charging, and the charging power P 调整 = [P max - fixed charging power * (N 固定 + 1)] / [N 总 - (N 固定 + 1)], and step S8 is entered.

[0038] S8: The charging current I1 is calculated according to the charging power P 调整 , the charging current I1 = charging power P 调整 / charging voltage U, and it is judged whether the current I1 currently charging satisfies the condition of being greater than or equal to the current I2 satisfying the double-gun charging pile starting condition. If yes, step S9 is entered. If no, step S10 is entered.

[0039] S9: If the receiving power adjustment mode, receiving the cluster management module RTU power adjustment command, according to the charging power P 调整 , calculate the CP signal duty cycle, use CP control guide circuit output correct duty cycle CP signal, current adjustment, double gun charging pile in the charging process through the voltage and current acquisition module real-time monitoring of charging voltage and current, when the charging power drops to the cluster management module RTU sent charging power P 调整 , the double gun charging pile to the cluster management module RTU report power adjustment success, all receiving power adjustment mode of double gun charging pile power regulation is completed, the cluster management module RTU start request charging double gun charging pile corresponding gun head, using the corresponding charging power starts charging, if the fixed power mode, the fixed power mode of double gun charging pile charging power remains unchanged, charging station its remaining choice to accept the power adjustment mode of double gun charging pile receiving cluster management module RTU power adjustment command, double gun charging pile in the charging process through the voltage and current acquisition module real-time monitoring of charging voltage and current, when the charging power drops to the cluster management module RTU sent charging power P 调整 , the double gun charging pile to the cluster management module RTU report power adjustment success, all receiving power adjustment mode of double gun charging pile power regulation is completed, the cluster management module RTU start request charging double gun charging pile corresponding gun head, issue charging power is fixed charging power;

[0040] S10: If the receiving power adjustment mode, the user needs to wait for the remaining double gun charging pile to complete charging, the user can set the waiting after inserting the gun, at this time, the double gun charging pile enters the charging waiting state, when the start charging condition is met, the cluster management module RTU controls the double gun charging pile to start charging, if the fixed power mode, the cluster management module RTU controls to close a number of the earliest charging double gun charging pile which selects the receiving power adjustment mode, preferably, the number of the closed double gun charging pile which is the earliest charging is five, the power of the remaining double gun charging pile remains unchanged, and the closed double gun charging pile enters the charging waiting state, preferably, the number of the closed double gun charging pile is five, and the RTU is waited for starting. Subsequently, the cluster management module RTU starts the double gun charging pile to start charging. When the double gun charging pile ends charging, the cluster management module RTU controls the first double gun charging pile in the queue to start charging, and the charging power P 调整 = (P max - fixed charging power * N 固定 ) / (N 总 - N 固定 );

[0041] S11: start generating a charging order, record the charging voltage, charging current, charging power, charging time length, and charging fee and report to a management platform, and the management platform generates the charging order.

[0042] Preferably, the P max is the total power of the charging station limited by the site electric charge, the actual number of double-gun charging piles of the charging station is not affected by P max , and the maximum value of the total power of the double-gun charging pile * the number of double-gun charging piles > P max .

[0043] Preferably, the fixed charging power and the maximum power of a single gun in the double-gun charging pile are both 7kW, and the maximum power of the double-gun charging pile is 14kW.

[0044] The application is described above with reference to the drawings, and it is obvious that the specific implementation of the application is not limited by the above method, and various non-essential improvements or direct application of the concept and technical solution of the application to other occasions without improvement are within the protection scope of the application.

Claims

1. A method for cluster management and billing of dual-gun AC charging piles, characterized in that: It includes several dual-gun charging piles, a cluster management module (RTU), and a management platform. The charging modes of the dual-gun charging piles include a power adjustment mode and a fixed power charging mode, and include the following steps: S1: After the user selects the charging mode, the startup information will be sent to the cluster management module RTU; S2: The cluster management module RTU calculates the current total charging power P of the charging station. all If P all +Maximum power of a single gun ≤ P max The dual-gun charging station head directly starts outputting charging requests. After successful startup, the charging information is reported to the management platform. If P all +Maximum power of a single gun > P max Proceed to step S3; S3: The cluster management module RTU issues different charging power to the dual-gun charging piles requesting charging according to the charging mode, and simultaneously adjusts the power of other dual-gun charging piles in the charging station. If the mode accepts power adjustment, P 调整 =(P max - Fixed charging power N 固定 ) / (N 总 -N 固定 +1), if it is a fixed power charging mode, P 调整 =[P max - Fixed charging power (N) 固定 +1)] / [N 总 -(N) 固定 +1)]; S4: Charging current I1 = P 调整 The charging voltage U is checked, and it is determined whether the current charging current I1 meets the start-up conditions of the dual-gun charging pile. If it meets the conditions, proceed to S5; otherwise, proceed to S6. S5: If it is the power adjustment receiving mode, receive the power adjustment command from the cluster management module RTU, when the charging power is adjusted to P 调整 The cluster management module RTU is notified in real time. After all dual-gun charging piles accepting the power adjustment mode have completed their power adjustment, they start charging using the corresponding charging power. If it is the fixed power charging mode, the charging power of the dual-gun charging piles in the fixed power charging mode remains unchanged. The remaining dual-gun charging piles in the charging station that select the power adjustment mode receive the power adjustment command from the cluster management module RTU. When the charging power is adjusted to P... 调整 The cluster management module RTU is reported in time. After the power adjustment of all dual-gun charging piles that accept the power adjustment mode is completed, the cluster management module RTU starts the corresponding gun head of the dual-gun charging pile that requests charging, sends the charging power as a fixed charging power, and proceeds to step S7. S6: If it is the power adjustment mode, the user needs to wait for the other dual-gun charging piles in the station to finish charging. When the charging start conditions are met, the cluster management module RTU controls the dual-gun charging pile to start charging. If it is the fixed power charging mode, the cluster management module RTU controls several dual-gun charging piles selected for the power adjustment mode to shut down and enter a charging waiting state. The cluster management module RTU then starts the dual-gun charging piles in the fixed power charging mode to start charging. When a dual-gun charging pile finishes charging, the cluster management module RTU controls the waiting dual-gun charging piles to start charging, with a charging power P. 调整 =(P max - Fixed charging power N 固定 ) / (N 总 -N 固定 Proceed to step S7; S7: Start the charging information reporting management platform, and the management platform generates a charging order.

2. The method for cluster management and billing of dual-gun AC charging piles according to claim 1, characterized in that: When a user chooses to accept the power adjustment mode, the original price will apply. When a user chooses the fixed charging power mode, an additional fee will be added to the original price.

3. The method for cluster management and billing of dual-gun AC charging piles according to claim 1, characterized in that: The startup information includes startup command, site number, charging pile number, charging head number, and user selection information. The charging information includes charging voltage, charging current, charging power, charging duration, and charging cost.

4. The method for cluster management and billing of dual-gun AC charging piles according to claim 1, characterized in that: The dual-gun charging station includes two independent charging modules and a first power input module. Each charging module includes an output control module, a CP control guidance module, a voltage and current acquisition module, a gun head wake-up module, a leakage current detection module, an RGB display module, a first microprocessor module, and a first 485 communication module. One end of each of the output control module, CP control guidance module, voltage and current acquisition module, gun head wake-up module, leakage current detection module, RGB display module, and first 485 communication module is connected to the first microprocessor module. One end of the output control module is also connected to the other end of the leakage current detection module. The other end of the output control module is connected to the other end of the voltage and current acquisition module. One end of the first power input module is connected to the other end of the leakage current detection module.

5. The method for cluster management and billing of dual-gun AC charging piles according to claim 1, characterized in that: The cluster management module RTU includes a second power input module, a second microprocessor module, a DC isolation module, a 4G module, a wired network module, a second 485 communication module, and a WIFI module. One end of the second power input module, the 4G module, the wired network module, the second 485 communication module, and the WIFI module are all connected to the second microprocessor module. One end of the DC isolation module is connected to the second power input module, and the other end of the DC isolation module is connected to one end of the second 485 communication module.

6. The method for cluster management and billing of dual-gun AC charging piles according to claim 1, characterized in that: The management platform includes charging pile equipment information configuration, charging pile environmental variable management, charging pile program version management, charging station operation management, and charging order generation and management.

7. The method for cluster management and billing of dual-gun AC charging piles according to claim 1, characterized in that: After the charging station is constructed, the maximum power of the charging station will be set on the dual-gun charging piles and management platform by inputting P. max The management platform will P max Data is sent to the cluster management module RTU according to the protocol.

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