CN107797003B - Virtual load test device and method for detecting metering performance of charging pile - Google Patents
Virtual load test device and method for detecting metering performance of charging pile Download PDFInfo
- Publication number
- CN107797003B CN107797003B CN201610803642.4A CN201610803642A CN107797003B CN 107797003 B CN107797003 B CN 107797003B CN 201610803642 A CN201610803642 A CN 201610803642A CN 107797003 B CN107797003 B CN 107797003B
- Authority
- CN
- China
- Prior art keywords
- current
- charging pile
- charging
- standard metering
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention provides a virtual load test device and a virtual load test method for detecting metering performance of a charging pile, and belongs to the field of metering. This a virtual load test device for filling electric pile measurement performance detects includes: an external current source, an external voltage source, an isolated current device and a standard metering device; the high end of the external voltage source is connected with the L end of the power input end of the charging pile, and the low end of the external voltage source is connected with the N end of the power input end of the charging pile; the external current source is connected with an isolation current device, the high current end of the isolation current device is connected with the L end of the power input end of the charging pile, and the low current end of the isolation current device is connected with the low current end of the standard metering device; the high end of the charging gun of the charging pile is connected with the current high end of the standard metering equipment, the low end of the charging gun is connected with the voltage low end of the standard metering equipment, and the voltage high end of the standard metering equipment is connected with the current high end of the standard metering equipment.
Description
Technical Field
The invention belongs to the field of metering, and particularly relates to a virtual load test device and method for metering performance detection of a charging pile, which are used for performing virtual load test on electric energy metering accuracy of an alternating current (direct current) charging pile in a field or laboratory environment.
Background
The charging pile (machine) generally comprises a pile body, an electric module, a metering module and the like. The electric module and the metering module are installed inside the pile body. The pile body comprises a shell, a man-machine interaction interface, and an electric module comprising a charging socket, a cable switching terminal block, a safety protection device and the like. In general, the user needs to pay according to the amount displayed in the man-machine interaction interface after charging. Therefore, the measurement performance detection of the charging pile (machine) needs to be completed integrally, and the currently adopted integral detection method is mainly an actual load method. The real load method has the characteristics of simple circuit and convenient use, but the method can increase extra energy consumption, so that the current calculation of 50kWh of electric energy consumption required by detecting one charging pile (machine) is realized, and the detection power consumption of the charging pile (machine) in one year in China can reach 400 kWh.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a virtual load test device and a virtual load test method for detecting the metering performance of a charging pile, which can complete the overall metering performance detection of the charging pile (machine) through external additional current sources, voltage sources and isolation equipment and standard metering equipment without large-scale modification of the charging pile (machine), and have the characteristics of flexible operation, high measurement efficiency and energy consumption saving.
The invention is realized by the following technical scheme:
a virtual load test device for charging stake measurement performance detects includes: an external current source, an external voltage source, an isolated current device and a standard metering device;
the high end of the external voltage source is connected with the L end of the power input end of the charging pile, and the low end of the external voltage source is connected with the N end of the power input end of the charging pile;
the external current source is connected with an isolation current device, the high current end of the isolation current device is connected with the L end of the power input end of the charging pile, and the low current end of the isolation current device is connected with the low current end of the standard metering device;
the high end of the charging gun of the charging pile is connected with the current high end of the standard metering equipment, the low end of the charging gun is connected with the voltage low end of the standard metering equipment, and the voltage high end of the standard metering equipment is connected with the current high end of the standard metering equipment.
The charging pile is an alternating current charging pile or a direct current charging pile.
The virtual load test method for detecting the metering performance of the charging pile by using the virtual load test device for detecting the metering performance of the charging pile comprises the following steps:
step 1, the high end of an external voltage source is connected with the L end of the power input end of the charging pile, and the low end of the external voltage source is connected with the N end of the power input end of the charging pile; connecting an external current source with an isolation current device, enabling a current high end of the isolation current device to be connected with an L end of a power input end of a charging pile, and enabling a current low end of the isolation current device to be connected with a current low end of a standard metering device;
step 2, the high end of the charging gun is connected with the current high end of the standard metering equipment, the low end of the charging gun is connected with the voltage low end of the standard metering equipment, and the voltage high end of the standard metering equipment is connected with the current high end of the standard metering equipment;
and step 3, setting an output voltage signal of an external voltage source, setting an output current signal of an external current source, synchronously starting the charging pile and standard metering equipment to measure, obtaining the integral metering error of the charging pile, and completing the virtual load test of the charging pile.
And 3, obtaining the overall metering error of the charging pile, and completing the virtual load test of the charging pile by the following steps:
after the charging pile accumulates the electric energy value for a certain time, synchronously stopping the charging pile and the standard metering equipment;
and recording the charging electric quantity value displayed by the charging pile and the charging electric quantity value displayed by the standard metering equipment, and comparing the two charging electric quantity values to determine the integral metering error of the charging pile, namely finishing the virtual load test of the charging pile.
Compared with the prior art, the invention has the beneficial effects that: the invention completes the detection of the whole metering performance of the charging pile (machine) through the external additional current source, voltage source and isolation equipment and standard metering equipment, and has the characteristics of flexible operation, high measurement efficiency and energy consumption saving.
Drawings
FIG. 1 is a schematic diagram of the structure of the device of the present invention.
Detailed Description
The invention is described in further detail below with reference to the attached drawing figures:
the invention provides a test method for detecting metering performance of an AC (DC) charging pile (machine), which is used for carrying out virtual load test on electric energy metering accuracy of the AC (DC) charging pile (machine) in a field or laboratory environment. The invention can complete the detection of the whole metering performance of the charging pile (machine) through external additional current source, voltage source, isolation equipment and standard metering equipment without large-scale modification of the charging pile (machine).
As shown in figure 1, the high-end H of the external voltage source is connected with the L end of the power input end of the AC (DC) charging pile (machine), and the low-end L of the external voltage source is connected with the N end of the power input end of the AC (DC) charging pile (machine); the external current source passes through an isolation current device, the device can prevent the current source from high voltage impact of a voltage source, the current high end H of the isolation device is connected with the power input end L of the charging pile (machine), and the current low end L of the isolation device is connected with the current low end L of the standard metering device;
the high-end of the charging gun is connected with the current high end H of the standard metering device, the low-end of the charging gun is connected with the voltage low end L of the standard metering device, and the voltage high end H of the standard metering device is connected with the current high end H of the standard metering device.
A virtual load test method for detecting metering performance of an AC (DC) charging pile (machine), the method comprises the following steps:
step 1, a high end H of an external voltage source is connected with an L end of a power input end of an alternating current (direct current) charging pile (machine), and a low end L of the external voltage source is connected with an N end of the power input end of the alternating current (direct current) charging pile (machine); the external current source passes through the isolation current equipment, the current high end H of the isolation equipment is connected with the power input end L of the charging pile (machine), the current low end L of the isolation equipment is connected with the current low end L of the standard metering equipment, and the current high end H of the isolation equipment is connected with the L end of the power input end of the AC (DC) charging pile (machine);
and 2, the high-end of the charging gun is connected with the current high end H of the standard metering device, the low-end of the charging gun is connected with the voltage low end L of the standard metering device, and the voltage high end H of the standard metering device is connected with the current high end H of the standard metering device.
And 3, after the steps 1 and 2 are completed, setting an external voltage source to output a voltage signal and setting an external current source to output a current signal according to the detection test requirements, synchronously starting the charging pile (machine) and the standard metering equipment to measure, and synchronously stopping the charging pile (machine) and the standard metering equipment after the charging pile (machine) accumulates the electric energy value for a certain time. And (3) recording the charging electric quantity value displayed by the charging pile (machine) and the charging electric quantity value displayed by the standard metering equipment, comparing the two charging electric quantity values, determining the integral metering error of the charging pile (machine), and completing the virtual load test of the charging pile (machine).
The invention relates to a virtual load test method for detecting the metering performance of an AC (DC) charging pile (machine). In the detection process, virtual power generation can be completed through the combination of an external voltage source and a current source, and the device has the characteristics of flexible operation, high measurement efficiency and energy consumption conservation.
The foregoing technical solution is only one embodiment of the present invention, and various modifications and variations can be easily made by those skilled in the art based on the application methods and principles disclosed in the present invention, not limited to the methods described in the foregoing specific embodiments of the present invention, so that the foregoing description is only preferred and not in a limiting sense.
Claims (4)
1. A virtual load test method for detecting metering performance of a charging pile is characterized by comprising the following steps of: the method comprises the following steps:
step 1, the high end of an external voltage source is connected with the L end of the power input end of the charging pile, and the low end of the external voltage source is connected with the N end of the power input end of the charging pile; connecting an external current source with an isolation current device, enabling a current high end of the isolation current device to be connected with an L end of a power input end of a charging pile, and enabling a current low end of the isolation current device to be connected with a current low end of a standard metering device;
step 2, the high end of the charging gun is connected with the current high end of the standard metering equipment, the low end of the charging gun is connected with the voltage low end of the standard metering equipment, and the voltage high end of the standard metering equipment is connected with the current high end of the standard metering equipment;
and step 3, setting an output voltage signal of an external voltage source, setting an output current signal of an external current source, synchronously starting the charging pile and standard metering equipment to measure, obtaining the integral metering error of the charging pile, and completing the virtual load test of the charging pile.
2. The method according to claim 1, characterized in that: the test device used by the method comprises: an external current source, an external voltage source, an isolated current device and a standard metering device;
the high end of the external voltage source is connected with the L end of the power input end of the charging pile, and the low end of the external voltage source is connected with the N end of the power input end of the charging pile;
the external current source is connected with an isolation current device, the high current end of the isolation current device is connected with the L end of the power input end of the charging pile, and the low current end of the isolation current device is connected with the low current end of the standard metering device;
the high end of the charging gun of the charging pile is connected with the current high end of the standard metering equipment, the low end of the charging gun is connected with the voltage low end of the standard metering equipment, and the voltage high end of the standard metering equipment is connected with the current high end of the standard metering equipment.
3. The method according to claim 2, characterized in that: the charging pile is an alternating current charging pile or a direct current charging pile.
4. The method according to claim 1, characterized in that: and 3, obtaining the overall metering error of the charging pile, and completing the virtual load test of the charging pile by the following steps:
after the charging pile accumulates the electric energy value for a certain time, synchronously stopping the charging pile and the standard metering equipment;
and recording the charging electric quantity value displayed by the charging pile and the charging electric quantity value displayed by the standard metering equipment, and comparing the two charging electric quantity values to determine the integral metering error of the charging pile, namely finishing the virtual load test of the charging pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610803642.4A CN107797003B (en) | 2016-09-05 | 2016-09-05 | Virtual load test device and method for detecting metering performance of charging pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610803642.4A CN107797003B (en) | 2016-09-05 | 2016-09-05 | Virtual load test device and method for detecting metering performance of charging pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107797003A CN107797003A (en) | 2018-03-13 |
| CN107797003B true CN107797003B (en) | 2023-10-20 |
Family
ID=61530717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610803642.4A Active CN107797003B (en) | 2016-09-05 | 2016-09-05 | Virtual load test device and method for detecting metering performance of charging pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107797003B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112269039A (en) * | 2020-09-29 | 2021-01-26 | 国网浙江省电力有限公司营销服务中心 | AC charging pile virtual load electric energy verification method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000339979A (en) * | 1999-05-27 | 2000-12-08 | Sharp Corp | Nonvolatile semiconductor memory device |
| TW201041267A (en) * | 2009-05-04 | 2010-11-16 | Univ Yuan Ze | Intelligent hybrid power conversion control system |
| CN102288847A (en) * | 2011-06-16 | 2011-12-21 | 深圳市科陆电子科技股份有限公司 | Device and method for simulating working characteristic of charging post |
| CN202353239U (en) * | 2011-10-21 | 2012-07-25 | 深圳市科陆电子科技股份有限公司 | Converter adopting virtual load to provide charging interfaces for charging pole |
| CN204882746U (en) * | 2015-07-21 | 2015-12-16 | 国网浙江省电力公司绍兴供电公司 | Electric automobile alternating current -direct current stake examination conversion equipment that charges |
| CN206074714U (en) * | 2016-09-05 | 2017-04-05 | 中国计量科学研究院 | A kind of virtual load assay device for the detection of charging pile metering performance |
| CN111638485A (en) * | 2020-06-09 | 2020-09-08 | 国网陕西省电力公司电力科学研究院 | Direct current electric energy meter calibration method and system based on standard pulse virtual power source method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8912816B2 (en) * | 2012-11-12 | 2014-12-16 | Chaologix, Inc. | Charge distribution control for secure systems |
| TWI464411B (en) * | 2013-01-29 | 2014-12-11 | Ind Tech Res Inst | Smart meter and management system and operation method thereof,remote server and operation method thereof,and management method of electric-appliance power characteristics database |
-
2016
- 2016-09-05 CN CN201610803642.4A patent/CN107797003B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000339979A (en) * | 1999-05-27 | 2000-12-08 | Sharp Corp | Nonvolatile semiconductor memory device |
| TW201041267A (en) * | 2009-05-04 | 2010-11-16 | Univ Yuan Ze | Intelligent hybrid power conversion control system |
| CN102288847A (en) * | 2011-06-16 | 2011-12-21 | 深圳市科陆电子科技股份有限公司 | Device and method for simulating working characteristic of charging post |
| CN202353239U (en) * | 2011-10-21 | 2012-07-25 | 深圳市科陆电子科技股份有限公司 | Converter adopting virtual load to provide charging interfaces for charging pole |
| CN204882746U (en) * | 2015-07-21 | 2015-12-16 | 国网浙江省电力公司绍兴供电公司 | Electric automobile alternating current -direct current stake examination conversion equipment that charges |
| CN206074714U (en) * | 2016-09-05 | 2017-04-05 | 中国计量科学研究院 | A kind of virtual load assay device for the detection of charging pile metering performance |
| CN111638485A (en) * | 2020-06-09 | 2020-09-08 | 国网陕西省电力公司电力科学研究院 | Direct current electric energy meter calibration method and system based on standard pulse virtual power source method |
Non-Patent Citations (2)
| Title |
|---|
| Jun Shi 等.Virtual Power Plant Regulation for Building Charging Piles.《2021 IEEE Sustainable Power and Energy Conference (iSPEC)》.2021,2213-2217. * |
| 刘思 等.基于高精度源表一体的非车载直流充电机检定装置研制.《电测与仪表》.2021,第58卷(第09期),194-200. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107797003A (en) | 2018-03-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206807114U (en) | The full decompression detection metering chip power supply circuit of three-phase intelligent ammeter | |
| CN104101839A (en) | Electric quantity detection system and electric quantity detection method | |
| CN206074714U (en) | A kind of virtual load assay device for the detection of charging pile metering performance | |
| CN103630729A (en) | One-step wiring device and method for testing 1000kV lightning arrester reference voltage and leakage current | |
| CN203422456U (en) | Electric quantity detection system | |
| CN203287499U (en) | Apparatus for testing torque constant of permanent-magnet servo synchronous motor | |
| CN107797003B (en) | Virtual load test device and method for detecting metering performance of charging pile | |
| CN202230155U (en) | Three-phase digital intelligent electric energy quality detection device | |
| CN108828359A (en) | A kind of method of inspection for realizing direct-current charging post electric flux error checking function | |
| CN206208991U (en) | A kind of direct-current resistance tester for transformer | |
| CN202815193U (en) | Battery test device | |
| CN204882853U (en) | Electric energy meter pressure resistance test installation | |
| CN206906496U (en) | A kind of no-load voltage ratio tester for transformer | |
| CN204925288U (en) | Electrolytic capacitor fills discharge characteristics testing arrangement | |
| CN209441239U (en) | Rush-harvesting and rush-planting three-phase alternating current charging pile | |
| CN204514996U (en) | Alternating current testing circuit | |
| CN204168001U (en) | A kind of intelligent duplicate power supply automatic change-over based on DSP | |
| CN203552056U (en) | Electric vehicle controller test system | |
| CN202693035U (en) | Mobile water source heat pump system performance test device | |
| CN202757924U (en) | Multifunctional portable apparatus fault diagnosis tester | |
| CN201845045U (en) | Composite test pencil | |
| CN205880184U (en) | Calibration equipment is synthesized to portable arrester discharge counter | |
| CN203365532U (en) | Usb interface voltage and current tester | |
| CN204271702U (en) | Charger | |
| CN203981868U (en) | The error testing system of digital electric power tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |