CN106300517A - A kind of super capacitor charging method and device - Google Patents
A kind of super capacitor charging method and device Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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Abstract
The invention discloses the charging method of a kind of super capacitor, preset, including S01, calculating resistance unit, the standard parameter value that heat dissipation capacity is corresponding；S02, output parameter to super capacitor detect in real time, and are compared with standard parameter value by output parameter, according to comparative result, discharge loop are carried out break-make control, so that resistance unit dispels the heat by default heat dissipation capacity.The invention also discloses the electric discharge device of a kind of super capacitor, including control unit, resistance unit, sampling unit and switch element, resistance unit is connected with the both positive and negative polarity of super capacitor, switch element is series in discharge loop, sampling unit is connected with control unit for detecting output parameter value in real time, control unit is connected with switch element, for the break-make of output parameter Signal-controlled switch unit that will detect so that resistance unit dispels the heat by default heat dissipation capacity.The charging method of the super capacitor of the present invention and device are respectively provided with that the velocity of discharge is fast and the advantage such as heat dissipation capacity is constant.
Description
Technical field
The invention mainly relates to electric and electronic technical field, refer in particular to a kind of super capacitor charging method and device.
Background technology
Super capacitor is owing to having the advantages such as stable performance, length in service life, charge/discharge rates be fast, as energy storage component
It is widely used in new forms of energy equipment.Especially in the pitch-controlled system of wind-power electricity generation equipment, owing to pitch-controlled system requires that system is tightly
Can respond rapidly under anxious state so that blade can return to feather position in the short period of time, super capacitor is that this system is first-selected
Energy storage component.Owing to the Capacity Ratio of the storage capacitor in system is relatively big, after disconnecting power supply, electric capacity also can be for a long time
Inherent output port has the highest DC voltage, therefore before safeguarding that pitch-controlled system is safeguarded, it is necessary first to super to system
Electric capacity discharges, and just can carry out follow-up maintenance work, the most just require at safety condition after electric capacity both end voltage is in safe voltage
Under, the time that capacitive discharge unit can discharge is the shortest more good, discharges the most thorough more good.The most more is to store up for super capacitor
The repid discharge design of energy device, does not accounts in wind power generator group, the super capacitor energy-storage dress being in hub body
The design of the electric discharge device put not only to consider the speed of electric discharge, owing to space limited in hub body it is also contemplated that electric discharge produces
Scattering and disappearing of heat.
Summary of the invention
The technical problem to be solved in the present invention is that the technical problem existed for prior art, and the present invention provides one
Plant the charging method of the super capacitor taking into account the velocity of discharge and heat dissipation capacity, and disclose a kind of simple in construction, operation letter accordingly
The electric discharge device of super capacitor just.
For solving above-mentioned technical problem, the technical scheme that the present invention proposes is:
The charging method of a kind of super capacitor, comprises the following steps:
S01, the resistance unit first calculated in super capacitor discharge loop preset the standard parameter value that heat dissipation capacity is corresponding, institute
Stating standard parameter value is standard voltage value or/and standard current value；
S02, super capacitor discharge during, the output parameter of super capacitor outfan is detected in real time, and
The output parameter signal detected is compared with standard parameter value, and according to comparative result, discharge loop is carried out break-make control
System, so that resistance unit dispels the heat by default heat dissipation capacity；Described output parameter is output voltage or/and export electric current.
Further improvement as technique scheme:
In step S02, use PID that the IGBT element being connected in discharge loop carries out break-make and control to realize electric discharge
The break-make in loop controls.
The detailed process using PID that the IGBT element being connected in discharge loop is carried out break-make control is: will detect
Output parameter signal and standard parameter value compare and obtain reference current value, then reference current value is exported with super capacitor
The current value ratio of end relatively obtains current differential, difference rate of change and difference change direction, and produces after fuzzy logic processes
Adjustment result is to carry out on-line tuning to pid control parameter, and the final pwm pulse signal that produces controls the break-make of IGBT element.
In the different phase of super capacitor electric discharge, adjust the resistance of resistance unit to realize repid discharge.
The different phase that super capacitor discharges is confirmed by the magnitude of voltage of super capacitor outfan.
Super capacitor electric discharge is divided into six stages, corresponding detection magnitude of voltage and rated voltage percentage ratio n1 respectively, n2,
N3, n4, n5 and n6, wherein 100%≤n1 ＜ 70%；70%≤n2 ＜ 55%；55%≤n3 ＜ 40%；40%≤n4 ＜
25%；25%≤n5 ＜ 5%；5%≤n6≤0.
During super capacitor discharges, the magnitude of voltage of super capacitor outfan is shown in real time.
A kind of electric discharge device of super capacitor, including control unit, resistance unit, sampling unit and switch element, described
Resistance unit is connected together to discharge loop with the both positive and negative polarity of super capacitor, and described switch element is series at described discharge loop
In, it is provided with in described control unit and presets, with the resistance unit in super capacitor discharge loop, the canonical parameter that heat dissipation capacity is corresponding
Value, described standard parameter value is standard voltage value or/and standard current value, described sampling unit is connected with described control unit,
For the output parameter value of super capacitor outfan being detected in real time and sending to control unit, described control unit and institute
State switch element to be connected, for being compared with standard parameter value by the output parameter detected signal, and according to comparative result
Control switch element break-make so that resistance unit dispels the heat by default heat dissipation capacity, described output parameter be output voltage or/
With output electric current.
Further improvement as technique scheme:
Described switch element is IGBT element, and described control unit produces pwm pulse signal with right according to comparative result
IGBT element carries out break-make control.
Described resistance unit includes the resistor network selecting switch and multichannel resistance loop connection in series-parallel to be formed, described Multi-path electricity
Resistance loop is connected with the described multi-channel output selecting switch respectively, described control unit and the described input phase selecting switch
Even, control to select the break-make of each road outfan of switch for the magnitude of voltage according to super capacitor outfan so that resistor network in
Existing different resistance value.
Described selection switch includes decoder and multiple relay, and the coil of multiple relays is series at decoder respectively
In multiple output loops, the normally opened contact of relay is then series in resistance loop, the input of described decoder then with control
Unit is connected.
Described resistance unit includes resistance R1～R18, and wherein the input of resistance R1, R4, R7, R10, R13, R16 is respectively
By selecting switch output pin to be connected with the positive pole of super capacitor；The outfan of resistance R1 respectively with the input of resistance R2 and R3
End connects；The outfan of resistance R4 is connected with outfan, the input of resistance R5 and R6 of resistance R3 respectively；The output of resistance R7
End is connected with outfan, the input of resistance R8 and R9 of resistance R6 respectively；The outfan of resistance R10 defeated with resistance R9 respectively
Go out end, the input of resistance R12 and R11 connects；The outfan of resistance R13 respectively with the outfan of resistance R12, resistance R14 and
The input of R15 connects；The outfan of resistance R16 respectively with the outfan of resistance R15, the input of resistance R18 and R17 is even
Connect；The outfan of resistance R2, R5, R8, R11, R14, R17 and R18 is connected with the negative pole of super capacitor respectively.
Also include that display unit, described display unit are connected with described control unit, for the super capacitor detected
The voltage of outfan shows in real time.
Also include the unit that arranges presetting heat dissipation capacity for setting resistance unit, described unit and control unit phase are set
Even, for default heat dissipation capacity is sent to control unit to be converted into standard parameter value.
The described unit that arranges is 3*3 array keyboard circuit, and wherein the row of array keyboard exports and the first latch
Q1～the Q3 pin of HC573 connects, and the row output of array keyboard is connected with D1～the D3 pin of the second latch HC573；DSP
A13 pin and IS pin AND OR NOT gate input connect, the outfan of nor gate and the LE pin of the first latch HC573
It is connected；The A12 pin of DSP and IOSTRB pin with or the input of door be connected, or the outfan of door and the second latch HC573
OE pin be connected；The OE pin ground connection of the first latch HC573, D8-D1 pin is connected with the D7-D0 pin of DSP；Second lock
The LE pin of storage HC573 connects power supply, and Q8-Q1 pin is connected with the D7-D0 pin of DSP.
Compared with prior art, it is an advantage of the current invention that:
The charging method of the super capacitor of the present invention, not only allows for the velocity of discharge of super capacitor, has taken into account simultaneously and dissipated
The control of heat, i.e. by super capacitor output voltage or/and output electric current detection, and by output voltage or/output electricity
Stream signal and standard parameter value contrast, and generate comparing result and are controlled the break-make of discharge loop, thus realize heat dissipation capacity by
Default heat dissipation capacity is dispelled the heat, it is ensured that the controllability of heat dissipation capacity in the confined space, thus ensures the normal work of each parts.
The electric discharge device of the super capacitor of the present invention, not only has the advantage as above described in charging method, and structure is simple
Single, easy and simple to handle.
Accompanying drawing explanation
Fig. 1 is the frame assumption diagram of the electric discharge device of the present invention.
Fig. 2 is the control unit frame assumption diagram in the electric discharge device of the present invention.
Fig. 3 is that the pid parameter of the present invention adjusts oscillogram.
Fig. 4 is the circuit theory diagrams of the resistance unit of the present invention.
Fig. 5 is the circuit theory diagrams selecting switch of the present invention.
Fig. 6 is signals collecting and the processing unit circuit theory diagrams of the present invention.
Fig. 7 is the circuit theory diagrams of the display unit of the present invention.
Fig. 8 is the circuit theory diagrams arranging unit of the present invention.
In figure, label represents: 1, control unit；2, resistance unit；3, sampling unit；4, display unit；5, unit is set；
6, switch element.
Detailed description of the invention
Below in conjunction with Figure of description and specific embodiment, the invention will be further described.
As shown in Figures 1 to 8, the charging method of the super capacitor of the present embodiment, comprise the following steps:
S01, the resistance unit 2 first calculated in super capacitor discharge loop preset the standard parameter value that heat dissipation capacity is corresponding,
Standard parameter value be standard voltage value or/and standard current value, this standard voltage value is the control of the output parameter of super capacitor
Desired value processed, can be set according to external environment condition (such as temperature)；
S02, super capacitor discharge during, the output parameter value of super capacitor outfan is detected in real time,
And compared with standard parameter value by the output parameter signal detected, and according to comparative result, discharge loop is carried out break-make
Control, so that resistance unit 2 dispels the heat by default heat dissipation capacity；Output parameter is voltage or/and electric current, and and standard parameter value
Corresponding.
The charging method of the super capacitor of the present invention, not only allows for the velocity of discharge of super capacitor, has taken into account simultaneously and dissipated
The control of heat, i.e. by super capacitor output voltage or/and output electric current detection, and by output voltage or/output electricity
Stream signal and standard parameter value contrast, and generate comparing result and are controlled the break-make of discharge loop, thus realize heat dissipation capacity by
Default heat dissipation capacity is dispelled the heat, it is ensured that the controllability of heat dissipation capacity in the confined space, thus ensures the normal work of each parts.
In the present embodiment, in step S02, use PID that the IGBT element being connected in discharge loop is carried out break-make control
Make the break-make to realize discharge loop to control, and standard parameter value and output parameter all use voltage signal (real at other
Execute in example, it would however also be possible to employ current signal or use voltage and current simultaneously), detailed process is: will detect voltage letter
Number compare obtain reference current value with standard voltage value, then the current value ratio by reference current value Yu super capacitor outfan
Relatively obtain current differential, difference rate of change and difference change direction, and after fuzzy logic processes, produce adjustment result with right
Pid control parameter carries out on-line tuning, and the final pwm pulse signal that produces controls the break-make of IGBT element.Below this was controlled
Cheng Jinhang makes a concrete analysis of explanation:
As in figure 2 it is shown, use the PID controller that fuzzy algorithmic approach is improved, comprising: fuzzy algorithmic approach regulation part, parameter are adjusted
Whole and conventional PID controllers, structure is as shown in Figure 2.The reference current value that fuzzy algorithmic approach is calculated by input front end is with defeated
Go out current differential, difference rate of change and difference change direction that current value ratio relatively obtains, obtain through internal fuzzy logic processes
Going out and adjust decision-making accordingly, the adjustment decision-making obtained and current differential are input to parameter adjustment part, it is achieved join PID controller
The on-line tuning of number, has reached under conditions of ensureing that resistance thermal discharge is constant, it is achieved pitch-controlled system super capacitor energy-storage module
Repid discharge.
The purpose constant in order to realize resistance unit 2 thermal discharge, the heat radiation value of resistance unit 2 should keep with setting value
Unanimously, but during super capacitor energy-storage module discharge, capacitance voltage and discharge current are continually changing in time,
Causing resistance unit 2 liberated heat is constantly fluctuation in whole discharge process.Therefore ensureing what resistance unit 2 was released
Heat is constant, and the reference current value of PID controller input is real-time change, to realize the current value of super capacitor discharge circuit
Dynamic, quickly follow the change of reference current value (reference current value is corresponding with default heat dissipation capacity), the output of fuzzy algorithmic approach
Decision-making is as shown in table 1 and Fig. 3:
Table 1 fuzzy algorithmic approach pid parameter adjusts decision-making
| 0A | AB | BC | CD | DE | EF | Stable state | |
| Current differential | More than 0 | More than 0 | Less than 0 | Less than 0 | More than 0 | More than 0 | Approximate 0 |
| Current differential rate of change | Less than 0 | Less than 0 | More than 0 | Less than 0 | More than 0 | Less than 0 | Approximate 0 |
| Current differential direction | 1 | 1 | -1 | -1 | 1 | 1 | 0 |
| Kp | Reduce | Increase | Reduce | Increase | Reduce | Increase | Reduce |
| Ki | Increase | Reduce | Increase | Reduce | Increase | Reduce | Reduce |
| Kd | Constant | Constant | Constant | Constant | Constant | Constant | Increase |
Note: current differential directioin parameter 1 represent actual value below reference value ,-1 represent actual value above reference value, 0
Represent that actual value overlaps with reference value approximation.
Parameter adjustment module adjusts decision-making and the size of deviation value, the strategy of parameter adjustment according to fuzzy algorithmic approach output
It is:
(1) for Kp parameter: the current differential current reference value more than 50%, Kp is adjusted by the gradient of 0.1；Current differential
Current reference value more than 20%, Kp is adjusted by the gradient of 0.05；The current differential current reference value more than 5%, Kp presses 0.01
Gradient adjust；
(2) for Ki parameter: current differential rate of change is more than 1, Ki is adjusted by the gradient of 0.1；Current differential rate of change is little
In 1, Ki is adjusted by the gradient of 0.01；
(3) for Kd parameter: current differential approximates 0, Kd is adjusted by the gradient of 0.1.
In the present embodiment, due to RC composition super capacitor energy-storage module discharge circuit, the length of capacitor discharge time with
Circuit time constant is relevant.Shown in the calculating such as formula (1) of the time constant of known RC discharge circuit.
τ=RC (1)
From formula (1), in the case of capacitance is certain, resistance value is the least, and the time constant of circuit is the least, circuit
Discharge time is the shortest.Therefore in the different phase of super capacitor electric discharge, can be by adjusting the resistance of resistance unit 2 with reality
Existing repid discharge.Wherein super capacitor energy-storage module discharge can be divided into three phases, respectively the starting stage, the interstage and
Ending phase.The electric energy that wherein starting stage stores due to super capacitor is big, and the terminal voltage value of energy-storage module is higher, needs electricity
The resistance value ratio of resistance unit 2 is relatively big, plays the purpose limiting discharge current, it is ensured that resistance liberated heat is in the scope of setting value
In；In the interstage, the terminal voltage value of energy-storage module can decline, when at this moment needing to reduce resistance unit 2 to shorten electric discharge
Between；Electric discharge ending phase, owing to electric capacity both end voltage value is the lowest, needs to reduce as far as possible the resistance of resistance unit 2, in order to realize
Electric discharge terminates the purpose that rear capacitor residual voltage is close to 0.If therefore the resistance of resistance unit 2 can be implemented in line regulation, according to
Different volume discharge regimes select different resistances, reach to shorten super capacitor energy-storage module fast discharge time and electric discharge knot
The capacitor residual voltage purpose close to 0 after bundle.
In the present embodiment, super capacitor discharge process can be divided into many by the magnitude of voltage of super capacitor outfan
The individual different stage.As super capacitor electric discharge is divided into six stages, corresponding detection magnitude of voltage and rated voltage percentage ratio
N1, n2, n3, n4, n5 and n6, wherein 100%≤n1 ＜ 70% respectively；70%≤n2 ＜ 55%；55%≤n3 ＜ 40%；40%
≤ n4 ＜ 25%；25%≤n5 ＜ 5%；5%≤n6≤0.
In the present embodiment, during super capacitor discharges, the magnitude of voltage of super capacitor outfan is shown in real time
Show, thus conveniently discharge process is monitored, avoid staff to carry out maloperation when charged simultaneously.
The present invention further correspondingly discloses the electric discharge device of a kind of super capacitor, including control unit 1, resistance unit 2, sampling
Unit 3 and switch element 6, resistance unit 2 is connected together to discharge loop with the both positive and negative polarity of super capacitor, and switch element 6 is connected
In discharge loop, it is provided with in control unit 1 and presets, with the resistance unit 2 in super capacitor discharge loop, the mark that heat dissipation capacity is corresponding
Quasi-parameter value, sampling unit 3 is connected with control unit 1, for examining the output parameter value of super capacitor outfan in real time
Surveying and send to control unit 1, control unit 1 is connected with switch element 6, for by the output parameter signal detected and standard
Parameter value compares, and controls the break-make of switch element 6 according to comparative result, so that resistance unit 2 is entered by default heat dissipation capacity
Row heat radiation, wherein standard parameter value is corresponding with output parameter, for voltage or/and electric current.
In the present embodiment, switch element 6 is IGBT element, control unit 1 according to comparative result produce pwm pulse signal with
IGBT element is carried out break-make control, described in concrete control process control method as above.
As shown in Figure 4, in the present embodiment, resistance unit 2 includes selecting switch and multichannel resistance loop connection in series-parallel to be formed
Resistor network, multichannel resistance loop is connected with the multi-channel output selecting switch respectively, control unit 1 and the input selecting switch
End is connected, for controlling to select the break-make of each road outfan of switch according to the magnitude of voltage of super capacitor outfan so that resistance net
Network presents different resistance values.
As it is shown in figure 5, in the present embodiment, select switch to include decoder and multiple relay, the coil of multiple relays
Being series at respectively in multiple output loops of decoder, the normally opened contact of relay is then series in resistance loop, decoder
Input is then connected with control unit 1.Adjustable in order to realize the resistance of resistance unit 2, select switch by decoder (as
74LS138) He six relays (such as Phoenix PLC-BSC-24UC/1/ACT DC relay) realize, as shown in Figure 5.Translate
Code device is 3-8 decoder, control unit 1 according to the DC voltage value collected, output triad code 000,001,
010,011,100 and 101,1～6# relay in the most corresponding six resistance loops, the line relay coil chosen exports
Low level so that relay coil has electric current to pass through, relay normally open contact then respective closed, corresponding resistance loop accesses electricity
Resistance unit 2, it is achieved the resistance of resistance unit 2 is adjustable, wherein the 110 of decoder, 111 exports short circuit over the ground.
As shown in Figure 4, in the present embodiment, resistance unit 2 includes 18 power resistors, respectively resistance R1～R18, wherein
The input of resistance R1, R4, R7, R10, R13, R16 is respectively by selecting switch output pin to be connected with the positive pole of super capacitor；
The outfan of resistance R1 input with resistance R2 and R3 respectively is connected；The outfan of resistance R4 respectively with the output of resistance R3
End, the input of resistance R5 and R6 connect；The outfan of resistance R7 respectively with outfan, the input of resistance R8 and R9 of resistance R6
End connects；The outfan of resistance R10 is connected with outfan, the input of resistance R12 and R11 of resistance R9 respectively；Resistance R13's
Outfan is connected with outfan, the input of resistance R14 and R15 of resistance R12 respectively；The outfan of resistance R16 respectively with electricity
The outfan of resistance R15, the input of resistance R18 and R17 connects；The outfan of resistance R2, R5, R8, R11, R14, R17 and R18
It is connected with the negative pole of super capacitor respectively.If the terminal voltage of the super capacitor energy-storage module of required electric discharge is 75V, according to 6 rank
The terminal voltage of the super capacitor energy-storage module of the resistor network switching of section, the resistance of 18 power resistors is followed successively by R1=100 Ω,
R2=R3=50 Ω, R4=R5=R6=40 Ω, R7=R8=R9=20 Ω, R10=R11=R12=15 Ω, R13=R14=
R15=10 Ω, R16=R17=R18=1 Ω.
From above-mentioned selection construction of switch and resistance unit 2 access way, by detection super capacitor energy-storage module
Output end voltage, then produce triad and select signal gating to select to switch corresponding outfan to access corresponding resistance
Loop.Detailed process is: when the terminal voltage of the super capacitor energy-storage module detected is in the scope of 100%～70% rated voltage
Time, selecting signal is 000；When the terminal voltage of the super capacitor energy-storage module detected is in the scope of 70%～55%, select
Signal is 001；When the terminal voltage of the super capacitor energy-storage module detected is in the scope of 55%～40%, selection signal is
010；When the terminal voltage of the super capacitor energy-storage module detected is in the scope of 40%～25%, selecting signal is 011；Work as inspection
The terminal voltage of the super capacitor energy-storage module measured is when the scope of 25%～5%, and selecting signal is 100；Super when detect
The terminal voltage of level capacitance energy storage module is when the scope of 5%～0%, and selecting signal is 101.
As it is shown in fig. 7, in the present embodiment, also include that display unit 4, display unit 4 are connected with control unit 1, for right
The voltage of the super capacitor outfan detected shows in real time.LCD1602 LCDs selected by display unit 4, its electricity
Road is as shown in Figure 7.The A15-A0 pin of DSP is connected with the A15-A0 pin of RAM, the A14-A0 pin of ROM respectively；DSP's
D15-D0 D7-D0 pin with the D15-D0 pin of RAM, the D7-D0 pin of ROM and LCD respectively is connected；The A8 pin of DSP with
The A0 pin of LCD connects；The A15 pin of DSP through the IS pin of not gate and DSP through being connected with CS pin with LCD behind the door,
The W/R pin of DSP is connected with the WR pin of LCD, and the W/R pin of DSP is connected with the RD pin of LCD through not gate.
As it is shown in figure 1, in the present embodiment, also include arranging unit 5 for set that resistance unit 2 presets heat dissipation capacity, if
Put unit 5 to be connected with control unit 1, for sending to control unit 1 default heat dissipation capacity to be converted into standard voltage value.
As shown in Figure 8, in the present embodiment, unit 5 is set for 3*3 array keyboard circuit, the wherein row of array keyboard
Output is connected with Q1～the Q3 pin of the first latch HC573, the row output of array keyboard and the D1 of the second latch HC573
～D3 pin connects；The A13 pin of DSP and the input of IS pin AND OR NOT gate connect, the outfan of nor gate and the first lock
The LE pin of storage HC573 is connected；The A12 pin of DSP and IOSTRB pin with or the input of door be connected, or the outfan of door
It is connected with the OE pin of the second latch HC573；The D7-of the OE pin ground connection of the first latch HC573, D8-D1 pin and DSP
D0 pin connects；The LE pin of the second latch HC573 connects power supply, and Q8-Q1 pin is connected with the D7-D0 pin of DSP.
In the present embodiment, control unit 1 realizes based on TMS320X281xDSP, and this is integrated with task manager, A/D
Modular converter, SCI communication interface, SPI Peripheral Interface, eCAN bus communication module, watchdog circuit, general digital I/O mouth etc.
Multifunction module, realizes providing good platform for the Control System Design that function is complicated, simultaneously because its cost performance is high, becomes
First-selected control chip for numerous applications.PWM regulation uses DSP event manager module EVA to realize, PID controller
The triangular signal that frequency is 1kHz that the regulation signal of output is with internally generated, by comparing unit, exports at PWM pin 1
The modulation pulse of IGBT.IGBT element selects model to be 1MBI200L-120；Sampling unit 3 includes that current sensor and voltage pass
Sensor, current sensor selection model is CHB300-P, and voltage sensor model is CHV-25.Due to the voltage letter collected
Number, current signal be unsatisfactory for the TMS320X281xDSP requirement to ADC analogue signal input range 0～3V, need collecting
Signal carry out pretreatment, the amplitude of signal is converted to the voltage signal of 0～3V, the pretreatment circuit of signal is respectively such as Fig. 6
Shown in.As resistance R105=R104, input and output voltage meets shown in relation such as formula (2):
Vout=(1+2*R101/Rg) * (R108/R109) (2)
In the present embodiment, the resistance of resistance R101～R108 is all 1k Ω, and the resistance of resistance R109 is all 100k Ω, current potential
It is calculated as the potentiometer of 2k Ω.Owing to super capacitor energy-storage module end voltage is 75V, therefore potentiometric resistance is at 1k about Ω, this
Sample ensures that the voltage of output is 0～3V.The current signal gathered is converted to the voltage signal of 60V, potentiometric resistance by resistance
It is worth at 0.5k about Ω, so ensures that the voltage of output is 0～3V.Collection signal after conversion passes through pin ACDINB1,
ACDINB2 is input to DSPA/D modular converter and carries out A/D conversion, and the sample frequency of ADC is set as 10kHz.
Below being only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that, for the art
For those of ordinary skill, some improvements and modifications without departing from the principles of the present invention, should be regarded as the protection of the present invention
Scope.
Claims (15)
1. the charging method of a super capacitor, it is characterised in that comprise the following steps:
S01, the resistance unit (2) first calculated in super capacitor discharge loop preset the standard parameter value that heat dissipation capacity is corresponding, institute
Stating standard parameter value is standard voltage value or/and standard current value；
S02, super capacitor discharge during, the output parameter of super capacitor outfan is detected in real time, and will inspection
The output parameter signal measured compares with standard parameter value, and according to comparative result, discharge loop is carried out break-make control,
So that resistance unit (2) dispels the heat by default heat dissipation capacity；Described output parameter is output voltage or/and export electric current.
The charging method of super capacitor the most according to claim 1, it is characterised in that in step S02, uses PID pair
The IGBT element being connected in discharge loop carries out break-make and controls the break-make control to realize discharge loop.
The charging method of super capacitor the most according to claim 2, it is characterised in that use PID to discharge back to being connected on
IGBT element in road carries out the detailed process of break-make control: carried out with standard parameter value by the output parameter signal detected
Relatively obtain reference current value, then the current value ratio of reference current value Yu super capacitor outfan is relatively obtained current differential, difference
Value rate of change and difference change direction, and after fuzzy logic processes, produce adjustment result so that pid control parameter to be carried out
Line adjusts, and the final pwm pulse signal that produces controls the break-make of IGBT element.
4. according to the charging method of the super capacitor described in claim 1 or 2 or 3, it is characterised in that in super capacitor electric discharge
Different phase, adjusts the resistance of resistance unit (2) to realize repid discharge.
The charging method of super capacitor the most according to claim 4, it is characterised in that by the electricity of super capacitor outfan
Pressure value confirms the different phase that super capacitor discharges.
The charging method of super capacitor the most according to claim 5, it is characterised in that super capacitor electric discharge is divided into six
Stage, corresponding detection magnitude of voltage and rated voltage percentage ratio n1, n2, n3, n4, n5 and n6, wherein 100%≤n1 ＜ respectively
70%；70%≤n2 ＜ 55%；55%≤n3 ＜ 40%；40%≤n4 ＜ 25%；25%≤n5 ＜ 5%；5%≤n6≤0.
7. according to the charging method of the super capacitor described in claim 1 or 2 or 3, it is characterised in that in super capacitor electric discharge
During, the magnitude of voltage of super capacitor outfan is shown in real time.
8. the electric discharge device of a super capacitor, it is characterised in that include control unit (1), resistance unit (2), sampling unit
(3) and switch element (6), described resistance unit (2) is connected together to discharge loop, described switch with the both positive and negative polarity of super capacitor
Unit (6) is series in described discharge loop, is provided with and the resistance list in super capacitor discharge loop in described control unit (1)
Unit (2) presets standard parameter value corresponding to heat dissipation capacity, and described standard parameter value is standard voltage value or/and standard current value, institute
State sampling unit (3) to be connected with described control unit (1), for the output parameter value of super capacitor outfan is examined in real time
Surveying and send to control unit (1), described control unit (1) is connected with described switch element (6), for the output that will detect
Parameter signal compares with standard parameter value, and controls the break-make of switch element (6) according to comparative result, so that resistance unit
(2) dispelling the heat by default heat dissipation capacity, described output parameter is output voltage or/and export electric current.
The electric discharge device of super capacitor the most according to claim 8, it is characterised in that described switch element (6) is IGBT
Element, described control unit (1) produces pwm pulse signal so that IGBT element is carried out break-make control according to comparative result.
The electric discharge device of super capacitor the most according to claim 8, it is characterised in that described resistance unit (2) includes choosing
Selecting switch and the resistor network of multichannel resistance loop connection in series-parallel formation, described multichannel resistance loop switchs with described selection respectively
Multi-channel output is connected, and described control unit (1) is connected with the described input selecting switch, for exporting according to super capacitor
The magnitude of voltage of end controls to select the break-make of each road outfan of switch so that resistor network presents different resistance values.
The electric discharge device of 11. super capacitors according to claim 10, it is characterised in that described selection switch includes decoding
Device and multiple relay, the coil of multiple relays is series in multiple output loops of decoder respectively, relay normally opened
Contact is then series in resistance loop, and the input of described decoder is then connected with control unit (1).
The electric discharge device of 12. super capacitors according to claim 10, it is characterised in that described resistance unit (2) includes
Resistance R1～R18, wherein the input of resistance R1, R4, R7, R10, R13, R16 is respectively by selecting switch output pin with super
The positive pole of level electric capacity connects；The outfan of resistance R1 input with resistance R2 and R3 respectively is connected；The outfan of resistance R4 divides
It is not connected with outfan, the input of resistance R5 and R6 of resistance R3；The outfan of resistance R7 respectively with the outfan of resistance R6,
The input of resistance R8 and R9 connects；The outfan of resistance R10 respectively with outfan, the input of resistance R12 and R11 of resistance R9
End connects；The outfan of resistance R13 is connected with outfan, the input of resistance R14 and R15 of resistance R12 respectively；Resistance R16
Outfan respectively with the outfan of resistance R15, the input of resistance R18 and R17 connects；Resistance R2, R5, R8, R11, R14,
The outfan of R17 and R18 is connected with the negative pole of super capacitor respectively.
13. according to Claim 8 to the electric discharge device of the super capacitor described in any one in 12, it is characterised in that also include
Display unit (4), described display unit (4) is connected with described control unit (1), for the super capacitor outfan detected
Voltage show in real time.
14. according to Claim 8 to the electric discharge device of the super capacitor described in any one in 12, it is characterised in that also include
For set resistance unit (2) preset heat dissipation capacity unit (5) is set, the described unit (5) that arranges is connected with control unit (1),
For default heat dissipation capacity is sent to control unit (1) to be converted into standard parameter value.
The electric discharge device of 15. super capacitors according to claim 14, it is characterised in that the described unit (5) that arranges is 3*3
Array keyboard circuit, wherein the row output of array keyboard is connected with Q1～the Q3 pin of the first latch HC573, array
The row output of keyboard is connected with D1～the D3 pin of the second latch HC573；The A13 pin of DSP and IS pin AND OR NOT gate
Input connects, and the outfan of nor gate and the LE pin of the first latch HC573 are connected；The A12 pin of DSP and IOSTRB draw
Foot with or the input of door be connected, or the OE pin of the outfan of door and the second latch HC573 is connected；First latch
The OE pin ground connection of HC573, D8-D1 pin is connected with the D7-D0 pin of DSP；The LE pin of the second latch HC573 connects electricity
Source, Q8-Q1 pin is connected with the D7-D0 pin of DSP.
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| CN108199577A (en) * | 2017-12-21 | 2018-06-22 | 重庆菲力斯特科技有限公司 | DC high-voltage power supply decompression control device, method and DC high-voltage power supply dropping equipment |
| CN109298245A (en) * | 2017-07-24 | 2019-02-01 | 北京金风科创风电设备有限公司 | The detection method and device of super capacitor in pitch-controlled system |
| CN109318715A (en) * | 2017-07-27 | 2019-02-12 | 郑州宇通客车股份有限公司 | A kind of new-energy automobile electric discharge device and a kind of new-energy automobile |
| CN113063982A (en) * | 2021-03-15 | 2021-07-02 | 电子科技大学 | Current testing device for pulse discharge of super capacitor module |
| CN113793815A (en) * | 2021-09-26 | 2021-12-14 | 杭州广立微电子股份有限公司 | Wide-voltage-range high-speed multistage discharge circuit, test system and discharge method |
| CN113848415A (en) * | 2021-01-28 | 2021-12-28 | 江西理工大学 | IRF generator, fault resistance generation method and IRF injection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109298245A (en) * | 2017-07-24 | 2019-02-01 | 北京金风科创风电设备有限公司 | The detection method and device of super capacitor in pitch-controlled system |
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| CN113063982B (en) * | 2021-03-15 | 2021-11-23 | 电子科技大学 | Current testing device for pulse discharge of super capacitor module |
| CN113793815A (en) * | 2021-09-26 | 2021-12-14 | 杭州广立微电子股份有限公司 | Wide-voltage-range high-speed multistage discharge circuit, test system and discharge method |
| CN113793815B (en) * | 2021-09-26 | 2024-04-26 | 杭州广立测试设备有限公司 | Wide-voltage-range high-speed multistage discharge circuit, test system and discharge method |
| CN116719669A (en) * | 2023-08-09 | 2023-09-08 | 苏州浪潮智能科技有限公司 | Super capacitor calibration method, alarm method and device and disk array card |
| CN116719669B (en) * | 2023-08-09 | 2023-11-03 | 苏州浪潮智能科技有限公司 | Super capacitor calibration method, alarm method and device and disk array card |
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