CN208547680U - A kind of electric property of super capacitor and the experimental provision of durable test - Google Patents
A kind of electric property of super capacitor and the experimental provision of durable test Download PDFInfo
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- CN208547680U CN208547680U CN201821247649.3U CN201821247649U CN208547680U CN 208547680 U CN208547680 U CN 208547680U CN 201821247649 U CN201821247649 U CN 201821247649U CN 208547680 U CN208547680 U CN 208547680U
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Abstract
The utility model provides a kind of electric property of super capacitor and the experimental provision of durable test, comprising: the two-way DC/DC converter being connected with super capacitor;For constituting the controllable load of the super capacitor discharge loop;For placing the temperature control box of the super capacitor;First relay of the charging path for being switched on or switched off between the super capacitor and DC power supply;For being switched on or switched off the second relay of the discharge path that the super capacitor is discharged by the two-way DC/DC converter;The control unit communicated to connect respectively with the two-way DC/DC converter, controllable load, temperature control box, super capacitor, the first relay and the second relay executes the electric property and durability test of super capacitor for sending corresponding control instruction.The utility model can easily and efficiently test related electric performance and durability of the super capacitor under different external environment conditions.
Description
Technical field
The utility model relates to testing power supply properties field more particularly to the electric properties and durable survey of a kind of super capacitor
The experimental provision of examination.
Background technique
In traditional passenger car field, due to lead-acid accumulator has many advantages, such as that technology maturation, reliability and stability are high, at low cost
It is widely applied as vehicle energy-storage units, but the problems such as that there is also cycle lives simultaneously is short, volume is big, environmental pollution.In recent years
Come, with the development of technology, application of the lithium battery small with volume weight for opposite lead-acid battery, the service life is long in passenger car
Also more get up extensively, however lithium battery the problems such as there is also at high cost, poor performance at low temperatures, security risk simultaneously.
Compared with battery class product, supercapacitor is high with power density, high rate during charging-discharging is strong, operating voltage
Range is wide, environmental adaptability is strong, has extended cycle life while non-maintaining, utilizes the spy of super capacitor moment high power discharge
Property, it influences service life to avoid battery to be large current discharge when engine Fraquent start and provides a solution, because
This is by the fields such as more and more applications and car emergency startup power supply, energy regenerating.
Rated capacity, equivalent series resistance (ESR), leakage current are most directly embodying for super capacitor electrical property, are used
Environment, charging and discharging currents voltage operating condition and the influence using the different factors such as time, the electric property of super capacitor have difference
Performance.
On the other hand, although the service life of super capacitor monomer can achieve hundreds of thousands time or even up to a million designs use
Service life, but super capacitor mould group might not can achieve so long service life when passenger car is carried and applied.Because
Super capacitor mould group is composed of in series and parallel multiple loose pattern groups, and the service life of mould group is by use environment temperature, electricity
The influence for the factors such as pressure biases, monomer is inconsistent.Therefore, the factors such as different temperatures, voltage, electric current are studied to super capacitor
The influence of module performance, prolonging its service life to provide to refer to for reasonable employment super capacitor is very important.
Utility model content
Technical problem to be solved by the utility model is to provide a kind of electric property of super capacitor and durable tests
Experimental provision, which can easily and efficiently test related electric performance of the super capacitor under different external environmental conditions
And durability.
To solve the above-mentioned problems, the utility model provides a kind of electric property of super capacitor and the experiment of durable test
Device, comprising: the two-way DC/DC converter being connected with super capacitor;For constituting the controllable of the super capacitor electric discharge object
Load;For placing the temperature control box of the super capacitor;For being switched on or switched off between the super capacitor and DC power supply
First relay of charging path;It is put for being switched on or switched off the super capacitor by the two-way DC/DC converter
Second relay of the discharge path of electricity;
With the two-way DC/DC converter, controllable load, temperature control box, super capacitor, the first relay and the second relay
The control unit communicated to connect respectively, for sending, corresponding control instruction executes the electric property of super capacitor and durability is surveyed
Examination.
Wherein, the movable contact of first relay is connect with the anode of the DC power supply, first relay
Stationary contact is connect with the first end of the first end of the two-way DC/DC converter and the controllable load, the two-way DC/DC
The second end of converter is connect with the super capacitor, and the second end of the controllable load is connected to ground, second relay
Movable contact connect with the first end of the two-way DC/DC converter, the stationary contact of second relay and the two-way DC/
The second end of DC converter connects.
Wherein, the experimental provision further include: for acquiring first relay, two-way DC/DC converter, temperature control
The current state of case, the second relay and controllable load, and the state that the current state feeds back to described control unit is adopted
Collect unit, the state acquisition unit and described control unit communicate to connect, the state acquisition unit also with described first after
The control terminal of electric appliance, the control terminal of the second relay, two-way DC/DC converter, temperature control box, controllable load and super capacitor connect
It connects.
Wherein, described control unit is used to set constant current charging mode for the two-way DC/DC converter, and sets institute
State the target voltage values of maximum charge the limitation electric current and the super capacitor of two-way DC/DC converter;
When first relay closure, second relay disconnect, the anode of the DC power supply passes through described
First relay, two-way DC/DC converter are connect to the super capacitor constant-current charge to target electricity with the super capacitor
Pressure value;
Described control unit records the time that the super-capacitor voltage rises to the target voltage values, is calculated and works as
Capacitance at preceding temperature.
Wherein, described control unit is used to set charge mode for the two-way DC/DC converter, and sets described super
The charging target voltage value of grade capacitor is the load voltage value of super capacitor;
When first relay is closed, and second relay disconnects, the anode of the DC power supply passes through described
First relay, two-way DC/DC converter are connect to charge to the charging mesh to the super capacitor with the super capacitor
Mark voltage value;
Described control unit is also used to set standby mode for the two-way DC/DC converter;
First relay disconnect, second relay be closed when, the super capacitor by described second after
Electric appliance is connect with the controllable load so that the super capacitor is discharged to a setting voltage value from the target voltage values;
Described control unit records the time that the super capacitor is discharged to the setting voltage value, and calculates described super
The equivalent series resistance of capacitor.
Wherein, the voltage value that sets is the load voltage value of 0.632 times of the super capacitor.
Wherein, described control unit is for setting the two-way DC/DC converter as charge mode, and sets described super
The charging target voltage value of capacitor is the load voltage value of the super capacitor;
When first relay is closed, and second relay disconnects, the anode of the DC power supply passes through described
First relay, two-way DC/DC converter are connect to charge to target voltage values to the super capacitor with the super capacitor;
Described control unit is also used to set the two-way DC/DC converter as lower power mode;
It is disconnected in first relay and the second relay, when the two-way DC/DC converter is in lower power mode,
The super capacitor self discharge;
Described control unit acquisition, the voltage value for recording the super capacitor, and calculate the voltage difference sampled twice in succession
Value;Judge that the super capacitor self discharge is finished when the voltage difference repeatedly calculated is all larger than given threshold, records described super
Grade capacitor self-discharge performance.
Wherein, described control unit is used to set constant current charging mode for the two-way DC/DC converter, and sets institute
The charging target voltage value for stating super capacitor is the load voltage value of the super capacitor;
When first relay is closed, and second relay disconnects, the anode of the DC power supply passes through described
First relay, two-way DC/DC converter are connect to the super capacitor constant-current charge to target electricity with the super capacitor
Pressure value;
Described control unit record the super capacitor charge to the target voltage values time and corresponding voltage number
According to.
Wherein, described control unit is constant-current discharge mode for controlling the two-way DC/DC converter, and sets electric discharge
Target voltage values be no-voltage;
When first relay and second relay disconnect, the super capacitor passes through the two-way DC/
DC converter is connect with the controllable load so that the super capacitor constant-current discharge is to no-voltage;
Described control unit record the super capacitor be discharged to no-voltage time and corresponding voltage data.
Wherein, described control unit is used to calculate the initial capacitance value and equivalent series resistance of the super capacitor, and
Constant current charging mode is set by the two-way DC/DC converter, is set as the target charging voltage value of the super capacitor
The load voltage value of the super capacitor;
When first relay is closed, and second relay disconnects, the anode of the DC power supply passes through described
First relay, two-way DC/DC converter are connect to surpass to the super capacitor constant-current charge to described with the super capacitor
The load voltage value of grade capacitor;
Control unit is also used to set the two-way DC/DC converter as constant-current discharge mode;
First relay disconnect, second relay be closed when, the super capacitor by described second after
Electric appliance is connect to be discharged to the discharge voltage threshold value of setting to the super capacitor with the controllable load;
Described control unit calculates the capacitance and equivalent series resistance of the super capacitor after the electric discharge, and records institute
State charge and discharge time, super capacitor capacity and equivalent series resistance value.
The beneficial effect of the utility model embodiment is: the host computer of the utility model is realized super by automatic programming
The test case of electric property and durability under grade capacitor difference external condition, slave computer are responsible for the acquisition of system real time data,
And the control command of host computer controls concrete composition component based on the received, can be convenient and efficiently tests super capacitor
Related electric performance under condition of different temperatures provides branch to play the performance applications of super capacitor and prolonging the service life
Support, meanwhile, which can facilitate malfunction elimination with real-time online diagnostic system failure, promote testing efficiency, in turn ensure simultaneously
The service life of test macro.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the circuit signal of a kind of super capacitor electric property of the utility model and the experimental provision of durable test
Figure.
Specific embodiment
The explanation of following embodiment be with reference to attached drawing, can be to the particular implementation implemented to example the utility model
Example.
It please referring to shown in Fig. 1, the utility model provides a kind of electrical property of super capacitor and the experimental provision of durable test,
The device includes: two-way DC/DC converter 2, the controllable load 5 for constituting the electric discharge of super capacitor 3 object, for placing
The of the temperature control box 4 of the super capacitor 3, charging path for being switched on or switched off between the super capacitor and DC power supply
One relay 6 is logical for being switched on or switched off the electric discharge that the super capacitor 3 is discharged by the two-way DC/DC converter 2
Second relay 7 on road, with the two-way DC/DC converter 2, controllable load 5, temperature control box 4, super capacitor 3, the first relay
6 and second control unit 9 that communicates to connect of relay 7, described control unit user send corresponding order to the super electricity
Hold and carries out electric property and durability test.
Specifically, the movable contact of first relay 6 is connect with the anode of the DC power supply 1, first relay
The stationary contact of device 6 is connect with the first end of the first end of the two-way DC/DC converter 2 and the controllable load 5, described double
It is connect to the second end of DC/DC converter 2 with the super capacitor 3, the second end of the controllable load 5 is connected to ground, described
The movable contact of second relay 7 is connect with the first end of the two-way DC/DC converter 2, the stationary contact of second relay 7
It is connect with the second end of the two-way DC/DC converter 2.
Wherein, the experimental provision further include: for acquiring first relay 6, two-way DC/DC converter 2, temperature control
The current state of case 4, the second relay 7 and controllable load 5, and the current state is fed back into described control unit 9, also use
In the control command according to described control unit 9 to first relay 6, two-way DC/DC converter 2, temperature control box 4, second
The state acquisition unit 8 that relay 7, controllable load 5 and the super capacitor 3 are controlled, the state acquisition unit 8 and institute
State control unit 9 communication connection, the state acquisition unit 8 also with the control terminal of first relay 6, the second relay 7
Control terminal, two-way DC/DC converter 2, temperature control box 4, controllable load 5 and super capacitor 3 connect.
Wherein, described control unit is also used to judge the experiment according to the current state that the state acquisition unit is fed back
Whether device is normal, when the experimental provision is abnormal, records fault mode and relevant diagnosis code.
Specifically, the super capacitor 3 is composed of in series and parallel multiple supercell capacitors.
Specifically, the DC power supply 1 is D.C. regulated power supply, provides charge power supply for super capacitor charging.
Specifically, the controllable load 5 is controllable load case, for constituting the discharge loop of the super capacitor.
Specifically, the temperature regulating range of the temperature control box 4 should cover the use of the super capacitor 3 in practical applications
Temperature range, it is preferable that its adjustable temperature range are as follows: between -40 degrees Celsius to 120 degrees Celsius.
Specifically, it is provided with detection unit in first relay 6 and second relay 7, the detection is single
Member detection relay movable contact and stationary contact between voltage difference, when detect the voltage difference be 0 when, then explanation after
Electric appliance is in closed state, if assuming, the relay is in closed state and is indicated with low level, is in an off state with high electricity
Flat to indicate, then detection unit generation low level signal illustrates that relay is in if detecting that the voltage difference is not 0
Off-state, then detection unit generates high level signal.
Specifically, described control unit 9 can be host computer, and the host computer can realize super capacitor with automatic programming
The test case of electric property and endurance quality under different external conditions.Control unit 9 be used for be arranged temperature control box 4 temperature and
The load resistor value of controllable load case sets the work of two-way DC/DC converter 2 also according to the specific test item of super capacitor
The target charging voltage of mode, maximum limitation electric current and super capacitor.
Specifically, the state acquisition unit 8 is slave computer, and the state acquisition unit 8 and control unit 9 communicate to connect,
The state acquisition unit 8 is mainly used for acquiring the current state of each building block of the experimental provision, and the status information is anti-
Control unit of feeding 9 realizes the control to each building block also according to the instruction of received control unit 9.
More specifically, host computer exports high/low level signal to the slave computer by I/O interface, the slave computer is received
The high/low level, and the high/low level is sent to by the detection unit of relay for needing to control by I/O port,
After the detection unit of the relay receives the high/low level, the control terminal closing or opening institute of the relay is controlled
Relay is stated, when the slave computer will acquire the current state of first relay and/or the second relay, then described
The voltage difference of detection unit detection relay in one relay and second relay, and generate corresponding high/low electricity
It puts down, and the height/ground level is sent to the I/O port of the slave computer.
More specifically, the host computer sends two-way DC/DC converter, controllable load, super capacitor by data/address bus
And the order of temperature control box, to the slave computer, the slave computer receives the control command, and the control command is sent
To the control chip in the super capacitor, temperature control box, controllable load and two-way DC/DC converter, to realize to described
The charging voltage of super capacitor, the temperature of temperature control box, the resistance value of controllable load and two-way DC/DC converter operating mode
And the setting of maximum current limit.
Test process of the experimental provision of the utility model for super capacitor rated capacity is as follows:
1, host computer is used to set the load value of the temperature of temperature control box, controllable load case;2, slave computer is described for acquiring
Two-way DC/DC converter, temperature control box, controllable load case, the first relay, the second relay current state and will be described current
State feeds back to the host computer;3, the host computer judges the experimental provision according to the current state that the slave computer is fed back
It is whether normal, if experimental provision is abnormal, enter fault mode, host computer records error code;If normal, 4 are executed;4,
The first relay of PC control closure, disconnects the second relay, the anode of the D.C. regulated power supply by described first after
Electric appliance and the two-way DC/DC converter are connect with the super capacitor;5, host computer sets two-way DC/DC converter as perseverance
Current charge mode sets the maximum charge limitation electric current of two-way DC/DC converter, sets the target charging voltage of super capacitor
Value, the D.C. regulated power supply charge to the target voltage values, the target electricity to the super capacitor in a manner of constant current
Pressure value is the load voltage value of the super capacitor;6, host computer record super-capacitor voltage rise to target voltage values when
Between, the super capacitor value under Current Temperatures is calculated;Aforesaid operations are repeated, the capacitance under different temperatures is recorded and draw song
Line.
DC series equivalent impedance ESR value test process of the experimental provision of the utility model for super capacitor is as follows:
1, host computer is used to set the load value of the temperature of temperature control box, controllable load case;2, slave computer is described for acquiring
Two-way DC/DC converter, temperature control box, controllable load case, the first relay, the second relay current state and will be described current
State feeds back to the host computer;3, the host computer judges the experimental provision according to the current state that the slave computer is fed back
It is whether normal, if experimental provision is abnormal, enter fault mode, and record error code in host computer;If normal, then behaviour is executed
Make 4;4, PC control is closed the first relay, disconnects the second relay, and the anode of the D.C. regulated power supply passes through described
First relay and the two-way DC/DC converter are connect with the super capacitor;5, two-way DC/DC converter is arranged in host computer
Target voltage for charge mode, setting charging is super-capacitor voltage rated value, and the super capacitor is charged to full electricity;6, on
Position machine is standby mode for two-way DC/DC converter to be arranged, and the second relay of order closure disconnects first relay,
The super capacitor is connect to realize the super capacitor to described controllable with the controllable load by second relay
Load discharge;7, the voltage of host computer record super capacitor is down to the time of 0.632 times of load voltage value, and is calculated and works as
The direct current ESR value of capacitor at preceding temperature;Aforesaid operations are repeated, the ESR value under different temperatures is recorded and draw curve.
Test process of the experimental provision of the utility model for the self-discharge performance of super capacitor is as follows:
1, host computer is used to set the temperature of temperature control box, the load value of controllable load case is unloaded;2, slave computer is for adopting
Collect the two-way DC/DC converter, temperature control box, controllable load case, the first relay, the current state of the second relay and feedback
Host computer;3, the host computer judges whether the experimental provision is normal according to the current state that the slave computer is fed back, if inspection
Examining system is normal, thens follow the steps 4, otherwise enters fault mode, and host computer records error code;4, PC control closure first
Relay, disconnects the second relay, and the anode of the D.C. regulated power supply passes through first relay and the two-way DC/DC
Converter is connect with the super capacitor;5, the target that two-way DC/DC converter is charge mode, setting charging is arranged in host computer
Voltage is the load voltage value of super capacitor, and super capacitor is charged to full electricity;6, host computer order disconnects the first relay, upper
The two-way DC/DC converter of machine order is lower power mode, and the super capacitor carries out self discharge;7, host computer collects and records described
The voltage value of super capacitor calculates the voltage difference sampled twice in succession;If the 8 sampling continuous n times of difference are less than given threshold,
Judge that super capacitor completes self-discharge processes, otherwise returns to 7;Aforesaid operations are repeated, the capacitor self discharge under different temperatures is recorded
Performance simultaneously draws curve.
Test process of the experimental provision of the utility model for the charging performance of super capacitor is as follows:
1, host computer sets the load value of the temperature of temperature control box, controllable load case;2, slave computer acquires the two-way DC/
DC converter, temperature control box, controllable load case, the first relay, the current state of the second relay and current state is anti-
It feeds the host computer;3, just whether the host computer judge the experimental provision according to the current state that the slave computer is fed back
Often, if experimental provision is normal, 4 are thened follow the steps, otherwise enters fault mode, host computer records error code;4, PC control
It is closed the first relay, disconnects the second relay, the anode of the D.C. regulated power supply passes through first relay and described
Two-way DC/DC converter is connect with the super capacitor;5, it is charge mode, charging that two-way DC/DC converter, which is arranged, in host computer
Target voltage values are the load voltage value of super capacitor;6, the two-way DC/DC converter of host computer order is constant current charging mode, if
Surely the current value to charge;7, host computer record super capacitor charges to the when m- voltage change data of load voltage value, and draws
Curve repeats the above steps, and is recorded under Current Temperatures, and the capacitive property to be charged with different current values simultaneously draws curve;
8, it repeats the above steps, record at different temperature, with the capacitive property of different current value chargings and draws curve.
Test process of the experimental provision of the utility model for the discharge performance of super capacitor is as follows:
1, host computer sets the load value of the temperature of temperature control box, controllable load case;2, slave computer acquires the two-way DC/DC
Converter, temperature control box, controllable load case, the first relay, the current state of the second relay simultaneously feed back the current state
To the host computer;3, just whether the host computer judge the experimental provision according to the current state that the slave computer is fed back
Often, if experimental provision is normal, 4 are thened follow the steps, otherwise enters fault mode, host computer records error code;4, PC control
The first relay is disconnected, the second relay is disconnected, the super capacitor is controllably born by the two-way DC/DC converter with described
Carry connection;5, it is discharge mode that two-way DC/DC converter, which is arranged, in host computer, and discharge target voltage value is 0;6, host computer order is double
It is constant-current discharge mode to DC/DC converter, sets the current value of electric discharge;7, host computer record super capacitor be discharged to 0 when
M- voltage change data, and curve is drawn, it repeats the above steps, and be recorded under Current Temperatures, with different current value charge and discharges
The capacitive property of electricity simultaneously draws curve;8, it repeats the above steps, record at different temperature, is discharged with different current values
Capacitive property simultaneously draws curve.
Test process of the experimental provision of the utility model for the cycling durable performance of super capacitor is as follows:
1, host computer sets the load value of the temperature of temperature control box, controllable load case;2, slave computer acquires the two-way DC/DC
Converter, temperature control box, controllable load case, the first relay, the current state of the second relay simultaneously feed back the current state
To host computer;3, the host computer judges whether the experimental provision is normal according to the current state that the slave computer is fed back, if
Detection system is normal, thens follow the steps 4, otherwise enters fault mode, and host computer records error code;4, the first of super capacitor is calculated
Beginning capacitance and series equivalent impedance ESR;5, PC control is closed the first relay, disconnects the second relay, the direct current
The anode of regulated power supply is connect by first relay and the two-way DC/DC converter with the super capacitor;6, on
It is constant current charging mode that two-way DC/DC converter, which is arranged, in position machine, sets charging current value, the D.C. regulated power supply is with constant current
Mode charges to load voltage value to the super capacitor;7, whether detection super-capacitor voltage reaches load voltage value, if
8 are entered step, otherwise enters step 6;8, the two-way DC/DC converter of host computer order is constant-current discharge mode, setting electric discharge electricity
Flow valuve;9, whether detection super-capacitor voltage reaches discharge voltage threshold value, if entering step 10, otherwise enters step 8;10,
Calculate capacitance present value and ESR value;11, judge whether capacitance present value is less than or equal to 0.8 times of initial capacitance value or ESR value
Whether otherwise the initial ESR value more than or equal to 1.2 times enters step 6 if so, entering step 12;12, terminate this service life
Test loop, and host computer records the data such as time, capacity, ESR value and draws curve.
The experimental provision of the utility model, host computer realize electricity under super capacitor difference external condition by automatic programming
Gas performance and durability test example, the acquisition of each component real time data in slave computer load experiment device, being capable of convenience and high-efficiency
Related electric performance of the super capacitor under condition of different temperatures is tested on ground, is made to play performance applications and the extension of super capacitor
Support is provided with the service life, meanwhile, which can facilitate malfunction elimination with real-time online diagnostic system failure, promote test effect
Rate, while in turn ensuring the service life of test device.
Above disclosures are merely preferred embodiments of the utility model, the utility model cannot be limited with this certainly
Interest field, therefore equivalent variations made according to the claim of the utility model still fall within the scope of the utility model.
Claims (10)
1. a kind of electric property of super capacitor and the experimental provision of durability test characterized by comprising
The two-way DC/DC converter being connected with super capacitor;
For constituting the controllable load of the super capacitor electric discharge object;
For placing the temperature control box of the super capacitor;
First relay of the charging path for being switched on or switched off between the super capacitor and DC power supply;
For being switched on or switched off the second of the discharge path that the super capacitor is discharged by the two-way DC/DC converter
Relay;
Distinguish with the two-way DC/DC converter, controllable load, temperature control box, super capacitor, the first relay and the second relay
The control unit of communication connection executes the electric property and durability test of super capacitor for sending corresponding control instruction.
2. experimental provision according to claim 1, which is characterized in that the movable contact and the direct current of first relay
The anode connection of power supply, the first end of the stationary contact of first relay and the two-way DC/DC converter and it is described can
The first end connection of control load, the second end of the two-way DC/DC converter are connect with the super capacitor, the controllable load
Second end be connected to ground, the movable contact of second relay is connect with the first end of the two-way DC/DC converter, described
The stationary contact of second relay is connect with the second end of the two-way DC/DC converter.
3. experimental provision according to claim 1, which is characterized in that the experimental provision further include: described for acquiring
The current state of first relay, two-way DC/DC converter, temperature control box, the second relay and controllable load, and will be described current
State feeds back to the state acquisition unit of described control unit, and the state acquisition unit and described control unit communicate to connect,
The state acquisition unit is also converted with the control terminal of first relay, the control terminal of the second relay, two-way DC/DC
Device, temperature control box, controllable load and super capacitor connection.
4. experimental provision according to claim 1, it is characterised in that:
Described control unit is used to set constant current charging mode for the two-way DC/DC converter, and sets the two-way DC/
The charging target voltage value of maximum charge the limitation electric current and the super capacitor of DC converter;
When first relay closure, second relay disconnect, the anode of the DC power supply passes through described first
Relay, two-way DC/DC converter are connect to the super capacitor constant-current charge to target voltage values with the super capacitor;
Described control unit records the time that the super-capacitor voltage rises to the target voltage values, and current temperature is calculated
Capacitance under degree.
5. experimental provision according to claim 1, it is characterised in that:
Described control unit is used to set charge mode for the two-way DC/DC converter, and sets the super capacitor
Charging target voltage value is the load voltage value of super capacitor;
When first relay is closed, and second relay disconnects, the anode of the DC power supply passes through described first
Relay, two-way DC/DC converter are connect to charge to the charge target electricity to the super capacitor with the super capacitor
Pressure value;
Described control unit is also used to set standby mode for the two-way DC/DC converter;
When first relay disconnects, and second relay is closed, the super capacitor passes through second relay
It is connect with the controllable load so that the super capacitor is discharged to a setting voltage value from the target voltage values;
Described control unit records the time that the super capacitor is discharged to the setting voltage value, and calculates the super capacitor
Equivalent series resistance.
6. experimental provision according to claim 5, it is characterised in that:
The voltage value that sets is 0.632 times of the load voltage value of super capacitor.
7. experimental provision according to claim 1, it is characterised in that:
Described control unit sets filling for the super capacitor for setting the two-way DC/DC converter as charge mode
Electric target voltage values are the load voltage value of the super capacitor;
When first relay is closed, and second relay disconnects, the anode of the DC power supply passes through described first
Relay, two-way DC/DC converter are connect to charge to target voltage values to the super capacitor with the super capacitor;
Described control unit is also used to set the two-way DC/DC converter as lower power mode;
It is disconnected in first relay and the second relay, it is described when the two-way DC/DC converter is in lower power mode
Super capacitor self discharge;
Described control unit acquisition, the voltage value for recording the super capacitor, and calculate the voltage difference acquired twice in succession;?
The voltage difference repeatedly calculated judges that the super capacitor self discharge finishes when being all larger than given threshold, record the super capacitor
Self-discharge performance.
8. experimental provision according to claim 1, it is characterised in that:
Described control unit is used to set constant current charging mode for the two-way DC/DC converter, and sets the super electricity
The charging target voltage value of appearance is the load voltage value of the super capacitor;
When first relay is closed, and second relay disconnects, the anode of the DC power supply passes through described first
Relay, two-way DC/DC converter are connect to the super capacitor constant-current charge to target voltage values with the super capacitor;
Described control unit record the super capacitor charge to the target voltage values time and corresponding voltage data.
9. experimental provision according to claim 1, it is characterised in that:
Described control unit is constant-current discharge mode for controlling the two-way DC/DC converter, and sets the target electricity of electric discharge
Pressure value is no-voltage;
When first relay and second relay disconnect, the super capacitor is turned by the two-way DC/DC
Parallel operation is connect with the controllable load so that the super capacitor constant-current discharge is to no-voltage;
Described control unit record the super capacitor be discharged to no-voltage time and corresponding voltage data.
10. experimental provision according to claim 1, it is characterised in that:
Described control unit is used to calculate the initial capacitance value and equivalent series resistance of the super capacitor, and will be described two-way
DC/DC converter is set as constant current charging mode, the target charging voltage value of the super capacitor is set as the super electricity
The load voltage value of appearance;
When first relay is closed, and second relay disconnects, the anode of the DC power supply passes through described first
Relay, two-way DC/DC converter are connect to the super capacitor constant-current charge to the super electricity with the super capacitor
The load voltage value of appearance;
Described control unit is also used to set the two-way DC/DC converter as constant-current discharge mode;
When first relay disconnects, and second relay is closed, the super capacitor passes through second relay
It is connect with the controllable load to be discharged to the discharge voltage threshold value of setting to the super capacitor;
Described control unit calculates the capacitance and equivalent series resistance of the super capacitor after electric discharge, and when recording charge and discharge
Between, super capacitor capacity and equivalent series resistance value.
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Cited By (4)
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CN110333416A (en) * | 2019-08-07 | 2019-10-15 | 常州华威电子有限公司 | A kind of high-voltage electrolytic capacitor durability testing system and method |
CN111551798A (en) * | 2020-03-20 | 2020-08-18 | 西安交通大学 | Low-voltage energy storage type high-power short circuit testing device and testing method |
CN112130096A (en) * | 2020-08-31 | 2020-12-25 | 中汽研汽车检验中心(天津)有限公司 | Detection device and detection method for detecting electrical durability of automobile electrical connector |
CN113489098A (en) * | 2021-07-06 | 2021-10-08 | 南京绿索电子科技有限公司 | Automatic charging and discharging circulation device and method for super capacitor module |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110333416A (en) * | 2019-08-07 | 2019-10-15 | 常州华威电子有限公司 | A kind of high-voltage electrolytic capacitor durability testing system and method |
CN111551798A (en) * | 2020-03-20 | 2020-08-18 | 西安交通大学 | Low-voltage energy storage type high-power short circuit testing device and testing method |
CN112130096A (en) * | 2020-08-31 | 2020-12-25 | 中汽研汽车检验中心(天津)有限公司 | Detection device and detection method for detecting electrical durability of automobile electrical connector |
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