CN103149471A - Calibration method and calibration device for battery charger and charging pile - Google Patents
Calibration method and calibration device for battery charger and charging pile Download PDFInfo
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- CN103149471A CN103149471A CN2013100377554A CN201310037755A CN103149471A CN 103149471 A CN103149471 A CN 103149471A CN 2013100377554 A CN2013100377554 A CN 2013100377554A CN 201310037755 A CN201310037755 A CN 201310037755A CN 103149471 A CN103149471 A CN 103149471A
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Abstract
The invention discloses a calibration method and a calibration device used for a battery charger and a charging pile of an electromobile substation. The calibration device comprises a tester and a load meter. The calibration device can be used for performing accurate measuring on the technical indexes of stabilized voltage precision, stabilized current precision, ripple factors and the like which are output by the battery charger and the charging pile in accordance with the requirements specified by the state. The calibration device is simple and reliable, capable of enabling each experiment to be conveniently accomplished, and strong in application prospect.
Description
Technical field
The present invention relates to a kind of charging set, charging pile method of calibration and equipment, specifically detect charging set, charging pile whether qualified, satisfy the equipment that national standard, regulation require.
Background technology
At present, charging set, charging pile occur later on like rain rear spring bamboo.In recent years, HF switch change type charging set has obtained general approval, but will realize that charging set satisfies these performance index, only depends on the instruments such as traditional multimeter, oscillograph, electric current split-core type meter to be difficult in real time, effectively test the performance of charging set.Development along with technology, emerge some portable charger characteristic testing devices, be 200810099905 as number of patent application, but this testing apparatus is because one of detected object is charging set, charging pile for the detected object of the present invention of the direct supply in transformer station, mode of connection is also different, structure is also different, under such background, and the verifying work that the present invention can be more accurate, carry out charging set, charging pile more easily.
Summary of the invention
The object of the invention just be to provide a kind of accurately, the method and apparatus of reliable detection charging set, charging pile.
The objective of the invention is to realize by following technical solution.
The calibration equipment of a kind of charging set, charging pile, the present invention is characterised in that: be made of tester and load instrument two parts, tester input termination 380V AC power, the power input of tester output termination charging set, charging pile, the output termination load instrument of charging set, charging pile, the load instrument is by being connected with tester by control, sample line.
tester of the present invention comprises industrial computer, the oscillograph module, the power analysis module, power module, pressure regulator, the Regulation Control module, controller, voltage and current detection circuit consists of, wherein power module input termination 220V exchanges end, power module outlet respectively with industrial computer, the oscillograph module, the power analysis module, controller module is connected, and provide their needed power supplys, industrial computer is connected with controller, the oscillograph module is connected with controller, the power analysis module is connected with controller, voltage and current detection circuit is connected with controller, the Regulation Control module is connected with controller, the Regulation Control module is connected with pressure regulator.
The present invention adopts the two-way power supply to power respectively tester, 380V power supply access pressure regulator, and according to the signal that the Regulation Control module provides, the regulation voltage output valve; 220V power supply access power module, and then industrial computer, oscillograph module, power analysis module, the required power supply of controller are provided.
Voltage and current detection circuit of the present invention is by carrying out voltage, current sample to the pressure regulator out-put supply, and sampled value delivered to controller process.
Tester of the present invention is accepted the control command in industrial computer, and desired voltage, current value in control command are sent to the load instrument by control, sample line, and the load instrument meets the requirements of resistance value after automatically adjusting.
Load instrument of the present invention is passed charging set, the DC voltage of charging pile output, current value in the controller of tester back by control, sample line.
The technology of the present invention principle: tester input termination 380V AC power, tester will be according to the control command of industrial computer, alternating voltage corresponding to output exported control signal to the load instrument to charging set, while correspondence, make the load instrument automatically adjust corresponding resistance, then according to the alternating voltage, electric current that are input to charging set with gather DC voltage, the electric current of charging set output on the load instrument, the computational analysis by tester draws the parameters such as the various burning voltage precision that satisfy GB and require, steady current precision, ripple factor, conversion efficiency.Simultaneously for parameters such as the conversion efficiency of analyzing charging set, power factors with following, tester connects the 220V AC power in addition, this method can be avoided influencing each other of in tester computation process power supply, improve simply and effectively the Electro Magnetic Compatibility of tester, also make pressure regulator carry out pressure regulation to input 380V voltage more easily simultaneously.
tester principle of work: accept the control command that industrial computer sends, output to the Regulation Control module after conversion by controller, and then make power supply corresponding to pressure regulator output to charging set, voltage and current detection circuit is with the voltage of power supply, the parameters such as electric current transfer back to controller, the DC voltage that the load instrument is also exported charging set, current signal transfers back to controller, the oscillograph module is to DC voltage, current signal carries out the ripple analysis, the power analysis module draws the parameters such as power factor to the voltage and current signal analysis of pressure regulator output, calculate simultaneously charging set steady current precision, the burning voltage precision, the parameters such as conversion efficiency.
The method of calibration of a kind of charging set, charging pile, due to two kinds of charged states of charging set ubiquity, current stabilization charging and voltage stabilizing charging, method of calibration for the voltage stabilizing charging is, adjust the charging set input voltage value and be respectively 90%, 100%, 110% of the specified input ac voltage value of charging set, by changing load, adjusting the charging set output voltage is 5%, 50% and 100% of charging set rated direct voltage output valve, test respectively the output voltage of its charging device within three minutes, find out the ultimate value U of charging set output voltage in above-mentioned variation range
M, δ
U=[(U
M-U
Z)/U
Z] * 100% is in formula: δ
UThe expression precision of voltage regulation; U
MExpression output voltage surge limit value; U
ZExpression output voltage ratings, the precision of voltage regulation when charging set precision of voltage regulation≤charging set dispatches from the factory judges that the charging set precision of voltage regulation is qualified, otherwise the charging set precision of voltage regulation＞charging set precision of voltage regulation when dispatching from the factory judges that the charging set precision of voltage regulation is defective.Evaluation method for the current stabilization charging is, adjust the charging set input voltage value and be respectively 90%, 100%, 110% of the specified input ac voltage value of charging set, by changing load, adjusting the charging set output current is 50%, 75% and 100% of charging set average anode current ratings, and continuous service 3 minutes, measure the ultimate value I of charging current in 3 minutes
M,
δ
I=[(I
M-I
Z)/I
Z] * 100% is in formula: δ
I-precision of steady current; I
M-output current fluctuation ultimate value; I
Z-output current rating, precision of steady current when charging set precision of steady current≤charging set dispatches from the factory judges that the charging set precision of steady current is qualified, otherwise charging set precision of steady current＞charging set precision of steady current when dispatching from the factory judges that the charging set precision of steady current is defective.
The valuator device of a kind of charging set, charging pile comprises that tester and load instrument two parts consist of, tester input termination 380V AC power in checking procedure, the power input of tester output termination charging set, the output termination load instrument of charging set, the load instrument is connected with tester by control, sample line.described tester comprises industrial computer, the oscillograph module, the power analysis module, power module, pressure regulator, the Regulation Control module, controller, voltage and current detection circuit consists of, wherein power module input termination 220V exchanges end, power module outlet respectively with industrial computer, the oscillograph module, the power analysis module, controller module is connected, and provide their needed power supplys, industrial computer is connected with controller, the oscillograph module is connected with controller, the power analysis module is connected with controller, voltage and current detection circuit is connected with controller, the Regulation Control module is connected with controller, the Regulation Control module is connected with pressure regulator.Described tester adopts the two-way power supply to power respectively, 380V power supply access pressure regulator, and according to the signal that the Regulation Control module provides, the regulation voltage output valve; 220V power supply access power module, and then industrial computer, oscillograph module, power analysis module, the required various power supplys of controller are provided.Described voltage and current detection circuit is by carrying out voltage, current sample to the pressure regulator out-put supply, and sampled value delivered to controller process.Described tester is accepted the control command of industrial computer, and voltage, current value that control command is required are sent to the load instrument by control, sample line, and the load instrument meets the requirements of voltage, current value after automatically adjusting.Described load instrument is passed DC voltage, the current value of charging set output in the controller of tester back by control, sample line.
Beneficial effect of the present invention:
1, measuring accuracy is high, adopts the industrial computer micro-chip processor, and memory capacity is large, directly completes measurement and the control of various technical parameters by interface;
2, wiring is simple, and is more safe and reliable, only needs on the output line of tester in equipment access charging set, on the output line of charging set access load instrument.
3, automatically control, according to the control software of writing on industrial computer, automatically the resistance on the load instrument is carried out precision adjustment, thereby detect every technical parameter.
Below in conjunction with the drawings and specific embodiments, the present invention is done with regard to step explanation.
Description of drawings
Fig. 1 alternating current-direct current charging set, charging pile verification wiring diagram;
Fig. 2 tester structural drawing;
Fig. 3 load instrument structural drawing.
Embodiment
Associative list 1 is introduced lower precision of voltage regulation evaluation method in detail: then accumulator is charged, charging modes is taked the voltage stabilizing charging, adjust input voltage value with three-phase regulator and be respectively 342V, 380V, 418V, adjusting output current is 5%, 50% and 100% of ratings, test respectively the output voltage of its charging device within three minutes, find out the ultimate value U of charging device output voltage in above-mentioned variation range
M, according to formula δ
U=[(U
M-U
Z)/U
Z] * 100% calculates the precision of voltage regulation of charging set, in formula: δ
UThe expression precision of voltage regulation; U
MExpression output voltage surge limit value; U
ZExpression output voltage ratings, the precision of voltage regulation when charging set precision of voltage regulation≤charging set dispatches from the factory judges that the charging set precision of voltage regulation is qualified, otherwise the charging set precision of voltage regulation＞charging set precision of voltage regulation when dispatching from the factory, judge that the charging set precision of voltage regulation is defective, details is recorded in table 1.
Table 1 precision of voltage regulation test form
Associative list 2 is introduced lower precision of steady current evaluation method in detail: charging set charges to accumulator under the constant-current charge state, use three-phase regulator that input voltage is set as 342V, 380V, 418V, adjust output voltage and be 50%, 75% and 100% and the continuous service 3 minutes of ratings, measure the ultimate value I of charging current in 3 minutes
M, δ
I=[(I
M-I
Z)/I
Z] * 100% is in formula: δ
I-precision of steady current; I
M-output current fluctuation ultimate value; I
Z-output current rating, precision of steady current when charging set precision of steady current≤charging set dispatches from the factory judges that the charging set precision of steady current is qualified, otherwise charging set precision of steady current＞charging set precision of steady current when dispatching from the factory, judge that the charging set precision of steady current is defective, details is recorded in table 2.
Table 2 precision of steady current test form
The conventional sense test method is: charging set is set to single power module mode of operation (being that charging set is by its minimum power configuration capacity), at 0.05 grade of three-phase AC power table of charging set input AC loop access, seal in 0.05 grade of DC ammeter, incorporate 0.05 grade of D.C. voltmeter in charging set output DC loop.0.05 AC power, alternating voltage, the alternating current in level three-phase AC power table monitoring input AC loop, 0.05 the electric current of level DC ammeter monitoring output DC loop, 0.05 the voltage of level D.C. voltmeter monitoring output DC loop, test connection as shown in Figure 1.
The test method that the present invention adopts is simpler, easy to operate, specifically be elaborated in conjunction with Fig. 1, tester input termination 380V AC power, tester exchanges with 380V the power input that out-put supply connects charging set, charging set output terminal output direct current signal connects the load instrument, the load instrument carry out analyzing and processing DC voltage, electric current, harmonic content, the isoparametric information exchange of ripple coefficient cross control, sample line is passed tester back, then tester carries out analyzing and processing to signal and can obtain the information such as the charging set precision of voltage regulation, precision of steady current.
Equipment of the present invention comprises that mainly tester, load instrument consist of.Tester comprises that again industrial computer, oscillograph module, power analysis module, power module, pressure regulator, Regulation Control module, controller, voltage and current detection circuit consist of; The load instrument comprises that controller, resistive module, switch module, radiating module, DC current sensor consist of.
The technology of the present invention principle: tester input termination 380V AC power, tester will be according to the control command of industrial computer, alternating voltage corresponding to output exported control signal to the load instrument to charging set, while correspondence, make the load instrument automatically adjust corresponding resistance, then according to the alternating voltage, electric current that are input to charging set with gather DC voltage, the electric current of charging set output on the load instrument, the computational analysis by tester draws the parameters such as the various burning voltage precision that satisfy GB and require, steady current precision, ripple factor, conversion efficiency.Simultaneously for parameters such as the conversion efficiency of analyzing charging set, power factors with following, tester connects the 220V AC power in addition, this method can be avoided influencing each other of in tester computation process power supply, improve simply and effectively the Electro Magnetic Compatibility of tester, also make pressure regulator carry out pressure regulation to input 380V voltage more easily simultaneously.
The calibration equipment of a kind of charging set, charging pile, the present invention is characterised in that: be made of tester and load instrument two parts, tester input termination 380V AC power, the power input of tester output termination charging set, charging pile, the output termination load instrument of charging set, charging pile, the load instrument is by being connected with tester by control, sample line.
tester of the present invention comprises industrial computer, the oscillograph module, the power analysis module, power module, pressure regulator, the Regulation Control module, controller, voltage and current detection circuit consists of, wherein power module input termination 220V exchanges end, power module outlet respectively with industrial computer, the oscillograph module, the power analysis module, controller module is connected, and provide their needed power supplys, industrial computer is connected with controller, the oscillograph module is connected with controller, the power analysis module is connected with controller, voltage and current detection circuit is connected with controller, the Regulation Control module is connected with controller, the Regulation Control module is connected with pressure regulator.
The present invention adopts the two-way power supply to power respectively tester, 380V power supply access pressure regulator, and according to the signal that the Regulation Control module provides, the regulation voltage output valve; 220V power supply access power module, and then industrial computer, oscillograph module, power analysis module, the required power supply of controller are provided.
Voltage and current detection circuit of the present invention is by carrying out voltage, current sample to the pressure regulator out-put supply, and sampled value delivered to controller process.
Tester of the present invention is accepted the control command in industrial computer, and desired voltage, current value in control command are sent to the load instrument by control, sample line, and the load instrument meets the requirements of voltage, current value after automatically adjusting.
Load instrument of the present invention is passed charging set, the DC voltage of charging pile output, current value in the controller of tester back by control, sample line.
introduce in detail the principle of work of tester in conjunction with Fig. 2, be specially: accept the control command that industrial computer sends, output to the Regulation Control module after conversion by controller, and then make power supply corresponding to pressure regulator output to charging set, voltage and current detection circuit is with the voltage of power supply, the parameters such as electric current transfer back to controller, the DC voltage that the load instrument is also exported charging set, current signal transfers back to controller, the oscillograph module is to DC voltage, current signal carries out the ripple analysis, the power analysis module draws the parameters such as power factor to the voltage and current signal analysis of pressure regulator output, calculate simultaneously charging set steady current precision, the burning voltage precision, the parameters such as conversion efficiency.
Introduce in detail the principle of work of load instrument in conjunction with Fig. 3, be specially: the resistance on the load instrument adopts aldary, and as constantan wire, the heating properties such as enamel-cover manganese-copper filament, enamel-cover nickel filament are resistance wire preferably.Load instrument maximal regulated electric current is a minute branch road adjustable current sum, when supposing that load instrument maximum load current is 8A, dividing the maximum adjustable current of branch road is 8A, minimal adjustment is 0.1A, has on each minute branch road regulating loop to be no less than the resistance wire of 2, and minute branch road adjustable current is 0.5 times of upper level adjustable current, as shown in Figure 3,8A, 4A, 2A, 1A, thereby the resistance value in the different switch regulating loop of relay operation, thus the electric current output of load instrument changed.Each divides the resistance that a plurality of similar resistance can be set under branch road electric current regulated value, can enlarge range of adjustment like this.
Claims (10)
1. the calibration equipment of a charging set, charging pile, it is characterized in that: consisted of by tester and load instrument two parts, tester input termination 380V AC power, the power input of tester output termination charging set, charging pile, the output termination load instrument of charging set, charging pile, the load instrument is by being connected with tester by control, sample line.
2. a kind of charging set according to claim 1, the calibration equipment of charging pile, it is characterized in that: described tester comprises industrial computer, the oscillograph module, the power analysis module, power module, pressure regulator, the Regulation Control module, controller, voltage and current detection circuit consists of, wherein power module input termination 220V exchanges end, power module outlet respectively with industrial computer, the oscillograph module, the power analysis module, controller module is connected, and provide their needed power supplys, industrial computer is connected with controller, the oscillograph module is connected with controller, the power analysis module is connected with controller, voltage and current detection circuit is connected with controller, the Regulation Control module is connected with controller, the Regulation Control module is connected with pressure regulator.
3. the calibration equipment of a kind of charging set according to claim 1, charging pile, is characterized in that: the resistance employing aldary on described load instrument.
4. the method for calibration of a charging set, charging pile is characterized in that: adopt the two-way power supply to power respectively tester, and 380V power supply access pressure regulator, according to the signal that the Regulation Control module provides, the regulation voltage output valve; 220V power supply access power module, and then industrial computer, oscillograph module, power analysis module, the required power supply of controller are provided.
5. the method for calibration of a kind of charging set according to claim 4, charging pile is characterized in that: described voltage and current detection circuit is by carrying out voltage, current sample to the pressure regulator out-put supply, and sampled value delivered to controller process.
6. the method for calibration of a kind of charging set according to claim 4, charging pile, it is characterized in that: described tester is accepted the control command in industrial computer, desired voltage, current value in control command are sent to the load instrument by control, sample line, and the load instrument meets the requirements of resistance value after automatically adjusting.
7. the method for calibration of a kind of charging set according to claim 4, charging pile is characterized in that: described load instrument with the DC voltage of charging set, charging pile output, current value by control, sample line passes back in the controller of tester.
8. the method for calibration of a kind of charging set according to claim 4, charging pile, it is characterized in that: adjust the charging set input voltage value and be respectively 90%, 100%, 110% of the specified input ac voltage value of charging set, by changing load, adjusting the charging set output voltage is 5%, 50% and 100% of charging set rated direct voltage output valve, test respectively the output voltage of its charging device within three minutes, find out the ultimate value U of charging set output voltage in above-mentioned variation range
M, δ
U=[(U
M-U
Z)/U
Z] * 100% is in formula: δ
UThe expression precision of voltage regulation; U
MExpression output voltage surge limit value; U
ZExpression output voltage ratings.
9. the method for calibration of a kind of charging set according to claim 4, charging pile, it is characterized in that: adjust the charging set input voltage value and be respectively 90%, 100%, 110% of the specified input ac voltage value of charging set, by changing load, adjusting the charging set output current is 50%, 75% and 100% of charging set average anode current ratings, and continuous service 3 minutes, measure the ultimate value I of charging current in 3 minutes
M, δ
I=[(I
M-I
Z)/I
Z] * 100% is in formula: δ
I-precision of steady current; I
M-output current fluctuation ultimate value; I
Z-output current rating.
10. the method for calibration of a kind of charging set according to claim 4, charging pile, it is characterized in that: the precision of voltage regulation when charging set precision of voltage regulation≤charging set dispatches from the factory, judge that the charging set precision of voltage regulation is qualified, otherwise the precision of voltage regulation when charging set precision of voltage regulation＞charging set dispatches from the factory, judge that the charging set precision of voltage regulation is defective, precision of steady current when charging set precision of steady current≤charging set dispatches from the factory, judge that the charging set precision of steady current is qualified, otherwise precision of steady current when charging set precision of steady current＞charging set dispatches from the factory judges that the charging set precision of steady current is defective.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439684A (en) * | 2013-08-05 | 2013-12-11 | 广西电网公司电力科学研究院 | System and method for detecting true shape electric energy metering errors of electric car battery charger/charging post |
| CN104898002A (en) * | 2015-06-23 | 2015-09-09 | 天津市三源新能源电动汽车服务有限公司 | Portable charging module electric energy transition efficiency detection device |
| CN105676025A (en) * | 2016-01-05 | 2016-06-15 | 天津大学 | Detection artificial load for movable electric vehicle charger |
| CN106556761A (en) * | 2016-11-24 | 2017-04-05 | 国网山东省电力公司 | A kind of direct-current charging post detecting system and method for being applied to scene |
| CN107255759A (en) * | 2017-06-09 | 2017-10-17 | 国网重庆市电力公司电力科学研究院 | A kind of electric vehicle alternating-current charging pile automatic checkout system |
| CN107817109A (en) * | 2017-12-15 | 2018-03-20 | 株洲中车电气科技有限公司 | A kind of dry resistance test method of diesel locomotive and device |
| CN109696592A (en) * | 2018-12-18 | 2019-04-30 | 广东电网有限责任公司 | A kind of charger test load control method, device and storage medium |
| CN111157821A (en) * | 2020-01-03 | 2020-05-15 | 云南电网有限责任公司电力科学研究院 | Load distribution method for DC charging among multiple output ports |
| CN112162165A (en) * | 2020-09-25 | 2021-01-01 | 智洋创新科技股份有限公司 | Automatic testing method for current stabilization precision of charging device based on programmable load regulation |
| CN112415386A (en) * | 2020-10-31 | 2021-02-26 | 贵州电网有限责任公司 | Integrated multifunctional charger characteristic test system |
| CN113009245A (en) * | 2019-12-20 | 2021-06-22 | 天津平高智能电气有限公司 | Fill portable detecting system of electric pile |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103439684A (en) * | 2013-08-05 | 2013-12-11 | 广西电网公司电力科学研究院 | System and method for detecting true shape electric energy metering errors of electric car battery charger/charging post |
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| CN105676025A (en) * | 2016-01-05 | 2016-06-15 | 天津大学 | Detection artificial load for movable electric vehicle charger |
| CN106556761B (en) * | 2016-11-24 | 2019-01-15 | 国网山东省电力公司 | A kind of direct-current charging post detection system and method applied on site |
| CN106556761A (en) * | 2016-11-24 | 2017-04-05 | 国网山东省电力公司 | A kind of direct-current charging post detecting system and method for being applied to scene |
| CN107255759A (en) * | 2017-06-09 | 2017-10-17 | 国网重庆市电力公司电力科学研究院 | A kind of electric vehicle alternating-current charging pile automatic checkout system |
| CN107817109A (en) * | 2017-12-15 | 2018-03-20 | 株洲中车电气科技有限公司 | A kind of dry resistance test method of diesel locomotive and device |
| CN109696592A (en) * | 2018-12-18 | 2019-04-30 | 广东电网有限责任公司 | A kind of charger test load control method, device and storage medium |
| CN109696592B (en) * | 2018-12-18 | 2021-06-08 | 广东电网有限责任公司 | Charger test load control method and device and storage medium |
| CN113009245A (en) * | 2019-12-20 | 2021-06-22 | 天津平高智能电气有限公司 | Fill portable detecting system of electric pile |
| CN111157821A (en) * | 2020-01-03 | 2020-05-15 | 云南电网有限责任公司电力科学研究院 | Load distribution method for DC charging among multiple output ports |
| CN112162165A (en) * | 2020-09-25 | 2021-01-01 | 智洋创新科技股份有限公司 | Automatic testing method for current stabilization precision of charging device based on programmable load regulation |
| CN112415386A (en) * | 2020-10-31 | 2021-02-26 | 贵州电网有限责任公司 | Integrated multifunctional charger characteristic test system |
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Application publication date: 20130612 |