An integrated detection platform for AC and DC charging piles and a method for on-site detection of charging piles

Abstract

An AC / DC charging pile integrated detection platform and a charging pile on-site detection method, the platform comprises: a three-phase AC programmable power supply, an electronic load, an AC / DC integrated charging pile detection device, a safety tester, a power analyzer, a DC standard electric energy meter, and an AC standard electric energy meter. The three-phase AC programmable power supply is connected to the tested AC / DC charging pile and is used to provide power for the AC / DC charging pile integrated detection platform; the AC / DC integrated charging pile detection device is connected to the electronic load and the tested AC / DC charging pile, respectively, the AC / DC integrated charging pile detection device comprises: an industrial computer, an acquisition and measurement unit, a data protocol consistency analysis unit, a charging gun socket and an external interface, the industrial computer is connected to the acquisition and measurement unit and the data protocol consistency analysis unit, respectively; the tested AC / DC charging pile is also connected to the safety tester, the power analyzer, the DC standard electric energy meter, and the AC standard electric energy meter, respectively.

Description

Technical Field

[0001] The present invention belongs to the technical field of charging equipment, and more specifically, relates to an integrated detection platform for AC and DC charging piles and a charging pile on-site detection method. Background Art

[0002] Promoting the development of charging business and accelerating the demonstration and promotion of new energy vehicles will inevitably require the charging system to be economical, safe and reliable. In this market context, the performance testing, functional testing, power metering, energy efficiency analysis and other technical research of electric vehicle charging piles are carried out. The research results can be quickly applied to engineering practice and verified in engineering practice, which has a vital impact on the construction and operation and maintenance of large-scale charging facilities.

[0003] At present, on-site AC and DC charging pile detection equipment usually carries two sets of equipment for separate testing. In the prior art, the on-site detection platform for AC charging piles consists of an on-site detection device for AC charging piles and an AC load box. Through the cooperation of the on-site calibration device for AC charging piles and the AC load box, it is possible to test the electric energy metering error test, the electrical parameter error (voltage, current, power, harmonics, etc.) test, etc.; by controlling the AC charging pile calibration device to simulate the electric vehicle control guidance function, the charging control compatibility test is performed; by reading the power of the three-phase standard meter in the standby state, the power consumption of the AC charging pile is tested; the insulation resistance test is performed through the insulation resistance test module; by cooperating with the calibration device manually, general inspections, human-computer interaction functions, display function tests, metering function tests, card payment function tests, locking device function tests, etc. are performed.

[0004] In the prior art, the on-site detection platform of DC charging piles is composed of a DC charger on-site detection test device and a DC load. Through the cooperation of the DC charger on-site detection test device and the DC load, it is possible to perform power metering error test, output voltage error test, voltage limiting characteristic test, current limiting characteristic test, charger output test, ripple coefficient test, etc.; through the BMS simulator in the DC charger on-site detection device, it is possible to perform BMS communication link layer test, BMS communication application layer test, BMS communication protocol specification test, etc.; through the cooperation of the detection device and manual work, it is possible to test the display function test, input function test, connection abnormality test, emergency stop function test, charging mode test, etc.; through the oscilloscope to detect the output of the charger, it is possible to perform ripple coefficient test, etc.

[0005] The shortcomings and problems of the existing technology are: (1) The detection environment of the electric energy meter is different. Usually, the environmental conditions of the AC and DC flow measurement site and the laboratory are very different, and the measurement standards used for on-site verification may change greatly after long-distance transportation and on-site installation. How to ensure the reliability of the measurement standards used for on-site verification during the value transfer process requires the study of value assurance solutions. (2) The impact of synchronous data collection on measurement. In the process of energy efficiency measurement, the original data required for energy efficiency calculation is the digital quantity on the line at the same time. Synchronous data collection is critical to ensuring the accuracy of energy efficiency measurement. Therefore, whether the synchronous data collection function can be realized is the key to ensuring the accuracy of energy efficiency measurement. (3) On-site testing requires carrying two different sets of equipment to test the AC and DC charging piles respectively, which brings a lot of inconvenience to the testers and has a high testing cost. Summary of the invention

[0006] In order to solve the deficiencies in the prior art, the purpose of the present invention is to provide an intelligent charging pile detection system platform for electric vehicles with integrated AC and DC, and an electric vehicle charging pile on-site detection test system, so as to realize efficient and reliable operation and accurate metering of electric vehicle charging pile facilities, which is conducive to improving user comfort, improving charging service capabilities, and improving operational efficiency, and ultimately promoting the standardization, normalization and intelligence of charging facility detection devices.

[0007] The present invention adopts the following technical scheme. An integrated detection platform for AC and DC charging piles includes: a three-phase AC programmable power supply, an electronic load, an integrated AC and DC charging pile detection device, a safety tester, a power analyzer, a DC standard electric energy meter, and an AC standard electric energy meter. The three-phase AC programmable power supply is connected to the tested AC and DC charging piles to provide power for the integrated detection platform for AC and DC charging piles; the integrated AC and DC charging pile detection device is connected to the electronic load and the tested AC and DC charging piles, respectively, and the integrated AC and DC charging pile detection device includes: an industrial computer, an acquisition and measurement unit, a data protocol consistency analysis unit, a charging gun socket, and an external interface. The industrial computer is connected to the acquisition and measurement unit and the data protocol consistency analysis unit, respectively; the tested AC and DC charging piles are also connected to the safety tester, the power analyzer, the DC standard electric energy meter, and the AC standard electric energy meter, respectively.

[0008] Preferably, when testing the AC charging pile on site, the three-phase AC programmable power supply is edited to supply power according to the AC charging pile detection standard, and the AC charging pile is started;

[0009] When testing the DC charging pile on site, edit the three-phase AC programmable power supply to supply power according to the DC charging pile detection standard and start the DC charging pile.

[0010] Preferably, the electronic load is connected to the charging gun socket and the external interface of the AC / DC integrated charging pile detection device, and is used to simulate at least one of the load size, short circuit, overcurrent and dynamic performance of the electric vehicle.

[0011] Preferably, the acquisition and measurement unit of the AC / DC integrated charging pile detection device is based on an embedded microprocessor, and is used to acquire the PWM duty cycle sampling signal output by the AC pile and the auxiliary power supply signal output by the DC charging pile.

[0012] Preferably, the AC / DC integrated charging pile detection device further includes a connection and control simulation unit, which includes: a connection confirmation and control confirmation simulation circuit of an AC charging pile and a connection confirmation simulation circuit of a DC charging pile.

[0013] Preferably, the AC / DC integrated charging pile detection device also includes a BMS simulation unit for BMS communication link layer testing, BMS communication application layer testing, and BMS communication protocol specification testing.

[0014] The present invention also provides a charging pile on-site detection method using the AC / DC charging pile integrated detection platform, comprising the following steps:

[0015] Step 1: Edit the three-phase AC programmable power supply according to the type of charging pile tested on site, and supply power to the charging pile to be tested according to the charging pile detection standard;

[0016] Step 2: insert the charging gun plug into the charging gun socket of the AC / DC integrated charging pile detection device, and connect the electronic load to the load end socket of the AC / DC integrated charging pile detection device;

[0017] Step 3: Conduct field testing based on the type of charging pile tested on site.

[0018] Preferably, in step 1, if the AC charging pile is tested on site, the three-phase AC programmable power supply is edited to supply power according to the AC charging pile detection standard, and the AC charging pile is started;

[0019] If testing the DC charging pile on site, edit the three-phase AC programmable power supply to supply power according to the DC charging pile detection standard and start the DC charging pile.

[0020] Preferably, in step 3, if the AC charging pile is tested on site,

[0021] Through the AC / DC integrated charging pile detection device and the AC load box, test the electric energy metering error test and the electrical parameter error; and / or

[0022] Conduct charging control compatibility test by controlling the AC / DC integrated charging pile detection device to simulate the electric vehicle control guidance function; and / or

[0023] Test the power consumption of the AC charging pile by reading the power of a three-phase standard meter in standby mode; and / or

[0024] Insulation resistance test using an insulation resistance test module; and / or

[0025] Through the cooperation of manual work and calibration equipment, general inspection, human-computer interaction function test, display function test, metering function test, card payment function test and locking device function test are carried out.

[0026] Preferably, in step 3, if the DC charging pile is tested on site,

[0027] Through the AC / DC integrated charging pile detection device and DC load, conduct power metering error test, output voltage error test, voltage limiting characteristic test, current limiting characteristic test, charger output test, ripple factor test, etc.; and / or

[0028] Conduct BMS communication link layer test, BMS communication application layer test, and BMS communication protocol specification test through the BMS simulator of the AC / DC integrated charging pile detection device; and / or

[0029] Through the AC / DC integrated charging pile detection device and manual cooperation, test display function test, input function test, connection abnormality test, emergency stop function test, and charging mode test; and / or

[0030] The ripple factor can be tested by detecting the charger output with an oscilloscope.

[0031] The beneficial effect of the present invention is that, compared with the prior art, the integrated system for testing the electrical performance of an electric vehicle charging pile of the present invention simulates and tests the working conditions of different charging devices, simulates the actual load conditions of the charging pile, and tests the electrical parameter characteristics of the power supply and charging output of the charging pile; according to relevant technical standards, an electrical characteristic test for confirming the connection of the charging interface is implemented; a CAN bus controller and an industrial computer are used to implement simulated operation of the battery management system and consistency testing of the data communication protocol with the charging pile, including message sending and receiving analysis in the charging handshake stage, the charging parameter configuration stage, the charging stage, and the charging end stage; a programmable AC power supply, a programmable electronic load, a multi-channel power analyzer, a multi-channel oscilloscope, an insulation withstand voltage tester, an impulse withstand voltage tester, a DC standard watt-hour meter, an AC standard watt-hour meter, etc. are configured to form a complete electrical performance testing system for a charging pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a block diagram of the integrated detection platform for AC and DC charging piles of the present invention;

[0033] Figure 2 This is a block diagram of the AC charging pile field detection platform;

[0034] Figure 3 This is the block diagram of the DC charger field detection platform. DETAILED DESCRIPTION

[0035] The present application is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present application.

[0036] like Figure 1 As shown, the present invention provides an integrated detection platform for AC and DC charging piles, including: a three-phase AC programmable power supply, an electronic load, an AC and DC integrated charging pile detection device, a safety tester, a power analyzer, a DC standard watt-hour meter, and an AC standard watt-hour meter.

[0037] The three-phase AC programmable power supply is connected to the tested AC / DC charging pile to provide power for the integrated testing platform of AC / DC charging piles. The beneficial effect of using a three-phase AC programmable power supply is that it can flexibly adjust various parameters such as voltage and current for testing the relevant functions of the charging pile. When the charging pile is used on site, it supplies three-phase power according to the testing standard requirements.

[0038] The electronic load is connected to the AC / DC integrated charging pile detection device to simulate an electric vehicle. It is understood that the electronic load is mainly used to simulate the performance of AC / DC charging piles in a real environment. The electronic load can adjust the load size, as well as short circuit, overcurrent, dynamic and other performance. The function of AC electronic load or DC electronic load is realized by switching the internal circuit. It is understood that the electronic load is a programmable electronic load, and the electronic load is connected to the external load docking port of the AC / DC integrated charging pile detection device.

[0039] The AC / DC integrated charging pile detection device includes: an industrial computer, an acquisition and measurement unit, a connection and control simulation unit, a power distribution unit, a battery management system simulation unit, a data protocol consistency analysis unit, a communication unit, a charging gun socket and an external interface.

[0040] The industrial computer is connected to the acquisition and measurement unit and the data protocol consistency analysis unit respectively.

[0041] The acquisition and measurement unit is based on an embedded microprocessor, which collects the PWM duty cycle sampling signal output by the AC charging pile and the auxiliary power supply (A+A-) signal output by the DC charging pile. After the data is processed, it is uploaded to the industrial computer for display and judgment.

[0042] The connection and control simulation unit is designed according to GB / T 20234.2-2011 and GB / T 20234.3-2011, and the connection confirmation (CC) and control confirmation (CP) simulation circuits of the AC charging pile and the connection confirmation (CC) simulation circuits of the DC charging pile are designed. When using simulated loads, the CAN simulator and the connection control guidance simulation unit simulate the control guidance circuit of the electric vehicle to match the identification of the electric vehicle AC and DC charging pile and the electric vehicle interoperability interface. It can be understood that the CAN simulator is a separate simulation component that completes CAN communication.

[0043] It can be understood that the three-phase AC programmable power supply supplies power to the AC and DC charging piles, the charging piles supply power to the tester through the charging gun interface, and the power required inside the tester is distributed and supplied through the power distribution unit.

[0044] The battery management system (BMS) simulation unit and the communication unit CAN communication interface realize the simulation of the battery management system, and communicate with the DC charging pile according to GB / T 27930-2011. It can perform BMS communication link layer test, BMS communication application layer test, BMS communication protocol specification test, etc. to test the data protocol consistency processing capability of the charging pile.

[0045] The data protocol consistency analysis unit is the communication protocol used by the communication unit, which realizes the consistency test function of the communication protocol between BMS and DC charging pile.

[0046] like Figure 1 As shown, the safety tester is connected to the AC / DC charging pile under test, and is used to perform insulation withstand voltage test and ground resistance test on the AC / DC charging pile.

[0047] The power analyzer is connected to the tested AC / DC charging pile and is used to perform power quality detection and energy efficiency measurement analysis on the AC / DC charging pile.

[0048] The DC standard electric energy meter is connected to the AC / DC charging pile to be tested and is used to measure the DC electric energy of the AC / DC charging pile.

[0049] The AC standard electric energy meter is connected to the AC / DC charging pile to be tested and is used to measure the AC electric energy of the AC / DC charging pile.

[0050] The functions of the integrated AC / DC charging pile detection platform include: testing the operating characteristics and load capacity of the charging pile, testing the input characteristics test, output characteristics test, power quality characteristics test, and safety characteristics test of the charging pile; based on the industrial computer system, realizing the conductive charging interoperability test between the pile and the car, the operation of the battery management system, and the analysis and test of the communication data consistency based on the control LAN field bus.

[0051] When testing the AC charging pile on site, edit the three-phase AC programmable power supply to supply power according to the AC charging pile detection standard, start the AC charging pile, insert the AC charging gun head into the AC socket interface of the AC charging pile on-site detector, and then connect the electronic load to the AC load box. Start the on-site detection platform structure as shown below: Figure 2 After the AC on-site detection platform is started, select the item to be detected by selecting the menu option, and click Start Detection to implement the AC charging pile on-site detection. The specific equipment and operation units for starting are as follows:

[0052] The AC charging pile on-site detection platform consists of an AC charging pile on-site detection device and an AC load box. Through the cooperation of the AC charging pile on-site verification device and the AC load box, the electric energy metering error test, the electrical parameter error (voltage, current, power, harmonics, etc.) test, etc. can be tested; by controlling the AC charging pile verification device to simulate the electric vehicle control guidance function, the charging control compatibility test can be carried out; by reading the power of the three-phase standard meter in the standby state, the power consumption of the AC charging pile can be tested; the insulation resistance test module can be used to carry out the insulation resistance test; through the cooperation of manual and verification devices, general inspection, human-computer interaction function, display function test, metering function test, card payment function test, locking device function test, etc. can be carried out.

[0053] The power input of the AC charging pile uses three-phase electricity. The AC charging pile verification device can simulate the control guidance circuit of the electric vehicle and match the identification of the electric vehicle AC charging pile and the electric vehicle interoperability interface. The platform can control the charging current of the charging pile by simulating the load and simulate the current verification point of the electric energy verification. This is a verification function that the electric vehicle does not have as a load, which greatly improves the operability of the detection.

[0054] The detection error of electric energy metering and the detection error of voltage and current need to reach an accuracy of 0.05%. At the same time, harmonics up to 127 can be measured. At the same time, the power of the AC load box needs to reach 22kW, which can be achieved through multiple cascades.

[0055] When testing the DC charging pile on site, edit the three-phase AC programmable power supply to supply power according to the DC charging pile detection standard, start the DC charging pile, insert the DC charging gun head into the DC socket interface of the DC charging pile on-site detector, and then connect the electronic load to the DC load box to start the DC charging pile on-site detection platform structure as shown below: Figure 3 After the DC on-site detection platform is started, select the item to be detected by selecting the menu option, and click Start Detection to implement the DC charging pile on-site detection. The specific equipment and operation units for starting are as follows:

[0056] The platform consists of a DC charger on-site detection test device and a DC load. Through the cooperation of the DC charger on-site detection test device and the DC load, it is possible to perform power metering error tests, output voltage error tests, voltage limiting characteristics tests, current limiting characteristics tests, charger output tests, ripple coefficient tests, etc.; through the BMS simulator in the DC charger on-site detection device, it is possible to perform BMS communication link layer tests, BMS communication application layer tests, BMS communication protocol specification tests, etc.; through the cooperation of the detection device and manual work, it is possible to test display function tests, input function tests, connection abnormality tests, emergency stop function tests, charging mode tests, etc.; through the oscilloscope to detect the charger output, it is possible to perform ripple coefficient tests, etc.

[0057] The built-in DC energy meter of the DC charger can be used to calibrate the electric energy through the DC charger detection test device. The DC standard energy meter has been integrated into the DC charger on-site detection device. When the DC charger has an energy pulse output, the low-frequency pulse method can be used (when the DC charger has no energy pulse output, the energy comparison method can be used to calibrate the electric energy). When the DC charger calibration device uses a simulated load, the detection device can simulate the control guidance circuit of the electric vehicle and match the identification of the electric vehicle DC charger and the electric vehicle interoperability interface. Using a DC load with a BMS simulator will have a great advantage over using an electric vehicle as a load. Using a DC load with a BMS simulator can easily detect each calibration point of the charger output.

[0058] The present invention also provides a charging pile on-site detection method using the AC / DC charging pile integrated detection platform, comprising the following steps:

[0059] Step 1, edit the three-phase AC programmable power supply according to the type of charging pile tested on site, and power the charging pile to be tested according to the charging pile detection standard; preferably, in step 1, if the AC charging pile is tested on site, edit the three-phase AC programmable power supply to power it according to the AC charging pile detection standard, and start the AC charging pile; if the DC charging pile is tested on site, edit the three-phase AC programmable power supply to power it according to the DC charging pile detection standard, and start the DC charging pile.

[0060] Step 2: Insert the charging gun plug into the charging gun socket of the AC / DC integrated charging pile detection device, and connect the electronic load to the load box;

[0061] Step 3, conduct a field test according to the type of charging pile tested on site. Preferably, in step 3, if an AC charging pile is tested on site,

[0062] Through the AC / DC integrated charging pile detection device and the AC load box, test the electric energy metering error test and the electrical parameter error; and / or

[0063] Conduct charging control compatibility test by controlling the AC / DC integrated charging pile detection device to simulate the electric vehicle control guidance function; and / or

[0064] Test the power consumption of the AC charging pile by reading the power of a three-phase standard meter in standby mode; and / or

[0065] Insulation resistance test using an insulation resistance test module; and / or

[0066] Through the cooperation of manual work and calibration equipment, general inspection, human-computer interaction function test, display function test, metering function test, card payment function test and locking device function test are carried out.

[0067] Preferably, in step 3, if the DC charging pile is tested on site,

[0068] Through the AC / DC integrated charging pile detection device and DC load, conduct power metering error test, output voltage error test, voltage limiting characteristic test, current limiting characteristic test, charger output test, ripple factor test, etc.; and / or

[0069] Conduct BMS communication link layer test, BMS communication application layer test, and BMS communication protocol specification test through the BMS simulator of the AC / DC integrated charging pile detection device; and / or

[0070] Through the AC / DC integrated charging pile detection device and manual cooperation, test display function test, input function test, connection abnormality test, emergency stop function test, and charging mode test; and / or

[0071] The ripple factor can be tested by detecting the charger output with an oscilloscope.

[0072] The beneficial effect of the present invention is that, compared with the prior art, the integrated system for testing the electrical performance of an electric vehicle charging pile of the present invention simulates and tests the working conditions of different charging devices, simulates the actual load conditions of the charging pile, and tests the electrical parameter characteristics of the power supply and charging output of the charging pile; according to relevant technical standards, an electrical characteristic test for confirming the connection of the charging interface is implemented; a CAN bus controller and an industrial computer are used to implement simulated operation of the battery management system and consistency testing of the data communication protocol with the charging pile, including message sending and receiving analysis in the charging handshake stage, the charging parameter configuration stage, the charging stage, and the charging end stage; a programmable AC power supply, a programmable electronic load, a multi-channel power analyzer, a multi-channel oscilloscope, an insulation withstand voltage tester, an impulse withstand voltage tester, a DC standard watt-hour meter, an AC standard watt-hour meter, etc. are configured to form a complete electrical performance testing system for a charging pile.

[0073] The applicant of the present invention has made a detailed explanation and description of the implementation examples of the present invention in conjunction with the drawings in the specification. However, those skilled in the art should understand that the above implementation examples are only preferred implementation schemes of the present invention, and the detailed description is only to help readers better understand the spirit of the present invention, but not to limit the scope of protection of the present invention. On the contrary, any improvements or modifications based on the inventive spirit of the present invention should fall within the scope of protection of the present invention.

Claims

1. An integrated detection platform for AC and DC charging piles, comprising: Three-phase AC programmable power supply, electronic load, AC / DC integrated charging pile detection device, safety tester, power analyzer, DC standard energy meter, AC standard energy meter, characterized in that: The three-phase AC programmable power supply is connected to the AC / DC charging pile under test to provide power for the AC / DC charging pile integrated detection platform; The AC / DC integrated charging pile detection device is connected to the electronic load and the tested AC / DC charging pile respectively. The AC / DC integrated charging pile detection device comprises: an industrial computer, a collection and measurement unit, a data protocol consistency analysis unit, a charging gun socket and an external interface. The industrial computer is connected to the collection and measurement unit and the data protocol consistency analysis unit respectively. The electronic load is a programmable electronic load that realizes the functions of an AC electronic load or a DC electronic load through internal circuit switching; The AC and DC charging piles under test are also connected to a safety tester, a power analyzer, a DC standard energy meter, and an AC standard energy meter respectively.

2. The integrated detection platform for AC and DC charging piles according to claim 1 is characterized in that: When testing the AC charging pile on site, edit the three-phase AC programmable power supply to supply power according to the AC charging pile detection standard and start the AC charging pile; When testing the DC charging pile on site, edit the three-phase AC programmable power supply to supply power according to the DC charging pile detection standard and start the DC charging pile.

3. The integrated detection platform for AC and DC charging piles according to claim 1 is characterized in that: The electronic load is connected to the charging gun socket and the external interface of the AC / DC integrated charging pile detection device, and is used to simulate at least one of the load size, short circuit, overcurrent and dynamic performance of the electric vehicle.

4. The integrated detection platform for AC and DC charging piles according to any one of claims 1 to 3, characterized in that: The acquisition and measurement unit of the AC / DC integrated charging pile detection device is based on an embedded microprocessor and is used to collect the PWM duty cycle sampling signal output by the AC pile and the auxiliary power supply signal output by the DC charging pile.

5. The integrated detection platform for AC and DC charging piles according to any one of claims 1 to 3, characterized in that: The AC / DC integrated charging pile detection device also includes a connection and control simulation unit, which includes: a connection confirmation and control confirmation simulation circuit of the AC charging pile and a connection confirmation simulation circuit of the DC charging pile.

6. The integrated detection platform for AC and DC charging piles according to any one of claims 1 to 5, characterized in that: The AC / DC integrated charging pile detection device also includes a BMS simulation unit, which is used for BMS communication link layer testing, BMS communication application layer testing, and BMS communication protocol specification testing.

7. A charging pile on-site detection method using the AC / DC charging pile integrated detection platform according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: Edit the three-phase AC programmable power supply according to the type of charging pile tested on site, and supply power to the charging pile to be tested according to the charging pile detection standard; Step 2: insert the charging gun plug into the charging gun socket of the AC / DC integrated charging pile detection device, and connect the electronic load to the load end socket of the AC / DC integrated charging pile detection device; Step 3: Conduct field testing based on the type of charging pile tested on site.

8. The charging pile on-site detection method according to claim 7, characterized in that: In step 1, if the AC charging pile is tested on site, edit the three-phase AC programmable power supply to supply power according to the AC charging pile detection standard and start the AC charging pile; If the DC charging pile is tested on site, edit the three-phase AC programmable power supply to supply power according to the DC charging pile detection standard and start the DC charging pile.

9. The charging pile on-site detection method according to claim 7 or 8, characterized in that: In step 3, if the AC charging pile is tested on site, Through the AC / DC integrated charging pile detection device and the AC load box, test the electric energy metering error test and the electrical parameter error; and / or Conduct charging control compatibility test by controlling the AC / DC integrated charging pile detection device to simulate the electric vehicle control guidance function; and / or Test the power consumption of the AC charging pile by reading the power of a three-phase standard meter in standby mode; and / or Insulation resistance test using an insulation resistance test module; and / or Through the cooperation of manual work and calibration equipment, general inspection, human-computer interaction function test, display function test, metering function test, card payment function test and locking device function test are carried out.

10. The charging pile on-site detection method according to any one of claims 7 to 9, characterized in that: In step 3, if the DC charging pile is tested on site, Through the cooperation of AC / DC integrated charging pile detection device and DC load, the electric energy metering error test, output voltage error test, voltage limiting characteristic test, current limiting characteristic test, charger output test, ripple coefficient test, etc. are carried out; and / or Through the BMS simulator of the AC / DC integrated charging pile detection device, the BMS communication link layer test, BMS communication application layer test, and BMS communication protocol specification test are carried out; and / or Through the AC / DC integrated charging pile detection device and manual cooperation, test display function inspection, input function inspection, connection abnormality inspection, emergency stop function inspection, and charging mode inspection; and / or The ripple factor can be tested by detecting the charger output with an oscilloscope.

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