CN103487663B - A kind of electric capacitance measurement test system of ultracapacitor and method of testing thereof - Google Patents
A kind of electric capacitance measurement test system of ultracapacitor and method of testing thereof Download PDFInfo
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- CN103487663B CN103487663B CN201310349381.XA CN201310349381A CN103487663B CN 103487663 B CN103487663 B CN 103487663B CN 201310349381 A CN201310349381 A CN 201310349381A CN 103487663 B CN103487663 B CN 103487663B
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Abstract
The invention discloses a kind of electric capacitance measurement test system and method for testing thereof of ultracapacitor, it comprises program-controlled precision DC stabilizer V1, program-controlled DC Electronic Loads I1 and multiple unit capacitor test circuit, described capacitor test circuit is made up of capacitor to be detected, charging paths, discharge paths, AD collection branch road and relay, wherein, charging paths is also connected on program-controlled precision DC stabilizer V1, discharge paths series connection is on program-controlled DC Electronic Loads I1, and charging paths and discharge paths are switched by relay.The invention has the beneficial effects as follows: adopt charged in parallel-discharged in series, automatic switchover, Differential Input and synchronous scanning, substantially increase the testing efficiency of double layer capacitor and the automaticity of detection, and there is the advantage that measuring condition consistance is good, measuring speed is fast, with low cost, be applicable to industrialized production.
Description
Technical field
The present invention relates to a kind of electric capacitance measurement test system and method for testing thereof of ultracapacitor, belong to capacitor detection technique field.
Background technology
After entering 21 century, along with countries in the world economic development, non-renewable energy resources such as oil, rock gas, coal etc. accelerate to consume, and the mankind will face the huge challenge of lack of energy.Under this background, various countries actively seek and develop new substitute energy as the renewable energy technologies such as sun power, wind energy.In renewable energy technologies, need the energy conversion of all kinds of form to become electric energy, and be stored up, export to external circuit when needs, and one of indispensable element of power storage is exactly energy-storage capacitor.
Ultracapacitor is called hyperchannel double layer capacitor, and also claim farad level capacitor, in order to store the electric energy of higher-energy, general energy-storage capacitor selects double layer capacitor, and its electric capacity is farad level.Because such capacitor and traditional capacitor (microfarad rank) have larger difference, cannot measure fast and accurately with ordinary numbers electric bridge.How efficiently and accurately to its electric capacity measurement be the development of double layer capacitor, an important topic facing of production and application.For solving the electric capacity test problem of such capacitor, corresponding company develops all kinds of testing tool, provides corresponding test Solution.
Such as certain capacity of super capacitor tester domestic, adopts constant flow method test, volume test scope 0.1F-300F; measuring accuracy ± 2%; but charging current can not regulate in numerical control, and only has a passage, cannot meet the testing requirement of scale Quick Measurement and all kinds of different test condition.
Such as certain ultracapacitor tester external; maximum passage is 12 passages; its major advantage adopts LAN mode to communicate, and the sampling time can reach 1ms to electric current and voltage simultaneously, possesses the multiple charging and discharging modes such as continuous current, constant voltage, invariable power; but this testing tool is expensive; and its testing software is special software, can not carry out secondary development, port number mostly is 12 passages most; can not expand, be unfavorable for that scale is tested.
Summary of the invention
The object of the present invention is to provide a kind of electric capacitance measurement test system and method for testing thereof of ultracapacitor, can the deficiencies in the prior art be overcome, improve the testing efficiency of capacitor and the automaticity of detection.
The object of the invention is to be achieved through the following technical solutions: a kind of electric capacitance measurement test system of ultracapacitor, it comprises program-controlled precision DC stabilizer V1, program-controlled DC Electronic Loads I1 and multiple unit capacitor test circuit, described capacitor test circuit is by capacitor to be detected, charging paths, discharge paths, AD gathers branch road and relay composition, wherein, charging paths, discharge paths and AD gather branch road respectively with capacitor to be detected just, negative pole is connected, charging paths is should link together the positive pole of corresponding capacitor as anode, negative pole connect together as negative terminal mode and be connected on program-controlled precision DC stabilizer V1, discharge paths with the mode series connection that the positive pole of previous capacitor is connected with the negative pole of a rear capacitor on program-controlled DC Electronic Loads I1, charging paths and discharge paths are switched by relay.
Described program-controlled precision DC stabilizer V1 is provided with gauge tap J3.
The current resolution of described program-controlled DC Electronic Loads I1 requires to be not less than ± 1mA, and error is not less than 0.5%, and range of current only depends on the discharge current of single capacitor.
The voltage resolution of described program-controlled precision DC stabilizer V1 requires to be not less than ± 1mV, and error is not less than 0.5%, and voltage range only depends on the maximum charging voltage of single capacitor.
The electric capacitance measurement test system of ultracapacitor and a method of testing thereof, it comprises following steps:
(1), simultaneously transfer relay, capacitor is in parallel with program-controlled precision DC stabilizer V1, and the method for employing charged in parallel carries out synchronous charging to many capacitors, and during owing to charging, capacitor is for being connected in parallel, and ensure that the high consistency of charging voltage;
(2), after condenser voltage reaches setting, constant official hour;
(3), after constant voltage time arrives, first disconnect the gauge tap J3 of program-controlled precision DC stabilizer V1, then transfer relay while, capacitor is made to connect into series system, adopt the method for discharged in series to carry out synchronous discharge to many capacitors, ensure that the high consistency of capacitor discharge current;
(4), program-controlled DC Electronic Loads I1 is started, electric discharge is started with default continuous current I, adopt the synchronous acquisition of AD capture card synchronous scanning realization to many capacitor discharge voltages being gathered branch road by AD while electric discharge, reduce the time delay that round scanning mode produces;
(5), start to calculate monitoring voltage and time, namely when voltage drop is to V1 value, record this moment t1, when voltage drop is to V2, record this moment t2;
(6), by the electric capacity computing formula specified in IEC62391-1
C=I*（t2-t1）/（U1-U2）
Calculate electric capacity;
(7), complete electric capacity test after, can as required, regulate constant current electronic load discharge current, to reach the object of rapid discharge.
Beneficial effect of the present invention is: adopt charged in parallel-discharged in series, automatic switchover, Differential Input and synchronous scanning, substantially increase the testing efficiency of double layer capacitor and the automaticity of detection, and there is the advantage that measuring condition consistance is good, measuring speed is fast, with low cost, be applicable to industrialized production.
Accompanying drawing explanation
Fig. 1 is the structural representation of present system charging;
Fig. 2 is the structural representation of present system electric discharge
Fig. 3 is the schematic diagram of the charging of present system;
Fig. 4 is the schematic diagram of present system electric discharge.
Embodiment
Technical scheme of the present invention is further described below in conjunction with accompanying drawing, but described in claimed scope is not limited to.
As Fig. 1, Fig. 2, a kind of electric capacitance measurement test system of ultracapacitor, for two passages, it comprises program-controlled precision DC stabilizer V1, program-controlled DC Electronic Loads I1 and multiple unit capacitor test circuit, program-controlled precision DC stabilizer V1, program-controlled DC Electronic Loads I1 is connected respectively to computer communication mouth, described capacitor test circuit is by capacitor to be detected, charging paths, discharge paths, AD gathers branch road and relay composition, wherein, charging paths, discharge paths and AD gather branch road respectively with capacitor to be detected just, negative pole is connected, charging paths is should link together the positive pole of corresponding capacitor as anode, negative pole connect together as negative terminal mode and be connected on program-controlled precision DC stabilizer V1, discharge paths with the mode series connection that the positive pole of previous capacitor is connected with the negative pole of a rear capacitor on program-controlled DC Electronic Loads I1, charging paths and discharge paths are switched by relay.
Described program-controlled precision DC stabilizer V1 is provided with gauge tap J3.
The current resolution of described program-controlled DC Electronic Loads I1 requires to be not less than ± 1mA, and it is 0.5% that error is not less than.
The electric capacitance measurement test system of ultracapacitor and a method of testing thereof, it comprises following steps:
(1), as Fig. 3, transfer relay J1 and J2, in parallel with program-controlled precision DC stabilizer V1 by capacitor simultaneously, adopts the method for charged in parallel to carry out synchronous charging to many capacitors.
(2), after condenser voltage reaches setting, constant official hour;
(3), as Fig. 4, after constant voltage time arrives, first disconnect the gauge tap J3 of program-controlled precision DC stabilizer V1, the while of then, transfer relay J1 and J2, makes capacitor connect into series system, adopts the method for discharged in series to carry out synchronous discharge to many capacitors;
(4), program-controlled DC Electronic Loads I1 is started, electric discharge is started with default continuous current I, adopt the synchronous acquisition of AD capture card synchronous scanning realization to many capacitor discharge voltages being gathered branch road by AD while electric discharge, reduce the time delay that round scanning mode produces.In addition, realize multi-channel data acquisition board by the AD capture card Differential Input of AD collection branch road during electric discharge, to during discharged in series, synchronous acquisition is carried out to many capacitors, monitoring capacitor voltage, this process is without the need to carrying out extra signal condition to the voltage signal at capacitor two ends during electric discharge;
(5), start to calculate monitoring voltage and time, namely when voltage drop is to V1 value, record this moment t1, when voltage drop is to V2, record this moment t2;
(6), by the electric capacity computing formula specified in IEC62391-1
C=I*（t2-t1）/（U1-U2）
Calculate electric capacity;
(7), complete electric capacity test after, can as required, regulate constant current electronic load discharge current, to reach the object of rapid discharge.
Claims (4)
1. the electric capacitance measurement test system of a ultracapacitor, it is characterized in that: it comprises program-controlled precision DC stabilizer V1, program-controlled DC Electronic Loads I1 and multiple unit capacitor test circuit, described capacitor test circuit is by capacitor to be detected, charging paths, discharge paths, AD gathers branch road and relay composition, wherein, charging paths, discharge paths and AD gather branch road respectively with capacitor to be detected just, negative pole is connected, charging paths is should link together the positive pole of corresponding capacitor as anode, negative pole connect together as negative terminal mode and be connected on program-controlled precision DC stabilizer V1, discharge paths with the mode series connection that the positive pole of previous capacitor is connected with the negative pole of a rear capacitor on program-controlled DC Electronic Loads I1, charging paths and discharge paths are switched by relay,
The method of testing of the electric capacitance measurement test system of described ultracapacitor, is characterized in that: it comprises following steps:
(1), simultaneously transfer relay, capacitor is in parallel with program-controlled precision DC stabilizer V1, and the method for employing charged in parallel carries out synchronous charging to many capacitors;
(2), after condenser voltage reaches setting, constant official hour;
(3), after constant voltage time arrives, first disconnect the gauge tap J3 of program-controlled precision DC stabilizer V1, the transfer relay while of then, makes capacitor connect into series system, adopts the method for discharged in series to carry out synchronous discharge to many capacitors;
(4), program-controlled DC Electronic Loads I1 is started, electric discharge is started with default continuous current I, adopt the synchronous acquisition of AD capture card synchronous scanning realization to many capacitor discharge voltages being gathered branch road by AD while electric discharge, reduce the time delay that round scanning mode produces;
(5), start to calculate monitoring voltage and time, namely when voltage drop is to V1 value, record this moment t1, when voltage drop is to V2, record this moment t2;
(6), by the electric capacity computing formula specified in IEC62391-1
C＝I*(t2-t1)/(V1-V2)
Calculate electric capacity;
(7), complete electric capacity test after, as required, regulate program-controlled DC Electronic Loads discharge current, to reach the object of rapid discharge.
2. the electric capacitance measurement test system of ultracapacitor according to claim 1, is characterized in that: described program-controlled precision DC stabilizer V1 is provided with gauge tap J3.
3. the electric capacitance measurement test system of ultracapacitor according to claim 1, is characterized in that: the current resolution of described program-controlled DC Electronic Loads I1 requires to be not less than ± 1mA, and error is not less than 0.5%.
4. the electric capacitance measurement test system of ultracapacitor according to claim 1, is characterized in that: the voltage resolution of described program-controlled precision DC stabilizer V1 requires to be not less than ± 1mV, and error is not less than 0.5%.
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| CN103779947B (en) * | 2014-03-06 | 2015-09-23 | 北京亚安新能航天科技有限公司 | There is the wind-driven generator pitching super capacitor charging system of on-line monitoring function |
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| CN105572520B (en) * | 2015-12-16 | 2017-07-21 | 湖南耐普恩科技有限公司 | A kind of test technology of ultracapacitor |
| CN107677892B (en) * | 2017-09-04 | 2019-08-23 | 西安交通大学 | A kind of super capacitor equivalent-circuit model structure and verification method |
| CN109900967B (en) * | 2017-12-07 | 2021-01-22 | 北京金风科创风电设备有限公司 | Capacitance value detection method and device of super capacitor and wind generating set |
| US10826306B2 (en) * | 2018-09-14 | 2020-11-03 | General Electric Company | System and method for monitoring ultracapacitors |
| CN111103482B (en) * | 2019-12-16 | 2023-01-06 | 肇庆绿宝石电子科技股份有限公司 | Full-automatic test method and system for super capacitor |
| CN111505386A (en) * | 2020-04-08 | 2020-08-07 | 东莞市仟泰自动化设备有限公司 | Method for detecting capacity of super capacitor |
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