CN108427078A - Power battery charge-discharge test instrument, operation method and its computer readable storage medium - Google Patents
Power battery charge-discharge test instrument, operation method and its computer readable storage medium Download PDFInfo
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- CN108427078A CN108427078A CN201810432385.7A CN201810432385A CN108427078A CN 108427078 A CN108427078 A CN 108427078A CN 201810432385 A CN201810432385 A CN 201810432385A CN 108427078 A CN108427078 A CN 108427078A
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- 238000012360 testing method Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims description 11
- 230000009466 transformation Effects 0.000 claims abstract description 6
- 239000004065 semiconductor Substances 0.000 claims description 43
- 230000005611 electricity Effects 0.000 claims description 21
- 230000001681 protective effect Effects 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 229910018095 Ni-MH Inorganic materials 0.000 claims description 3
- 229910018477 Ni—MH Inorganic materials 0.000 claims description 3
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical compound [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- 238000005660 chlorination reaction Methods 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 2
- TWLBWHPWXLPSNU-UHFFFAOYSA-L [Na].[Cl-].[Cl-].[Ni++] Chemical compound [Na].[Cl-].[Cl-].[Ni++] TWLBWHPWXLPSNU-UHFFFAOYSA-L 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to battery testing fields, more particularly to a kind of power battery charge-discharge test instrument, including accumulator group and the multiple two-way DC/DC converters for being electrically connected accumulator group, each two-way DC/DC converters are connect at least one power battery, when two-way DC/DC converters are depressured, energy in accumulator group is to power battery charging, when two-way DC/DC converters are boosted, energy in power battery is to battery charging, to realize can be recycled for energy, waste will not be formed；Test only relates to DC DC transformation, and current loss will substantially reduce, therefore improve the efficiency for charge-discharge of power battery charge-discharge test instrument and equivalent feedback efficiency；Additionally due to the energy comparison that accumulator group provides is pure, the output ripple of power battery charge-discharge test instrument is small.
Description
Technical field
The invention is related to battery testing field more particularly to a kind of power battery charge-discharge test instrument, power battery
Charge-discharge test instrument is built-in with computer readable storage medium, and the program on computer readable storage medium can be filled by power battery
Processor in discharge tester executes.
Background technology
With country widely popularize energy-saving and emission-reduction, Green Travel policy, the electric tools such as electric vehicle, electric bicycle
Industry is grown rapidly, therefore the core of these electrical equipments --- and the market of power battery grows rapidly, and power battery
In the production phase, charge-discharge performance, battery capacity, the battery of power battery need to be detected using power battery charge-discharge test instrument
Charge and discharge safety.
As shown in Figure 1, in charging process, the AC/DC in tester is converted traditional power battery charge-discharge test instrument
Device is by the electric energy transformation output in power grid to each power battery charging；In discharge process, power battery charge-discharge test instrument
In inverter electricity is taken from each power battery, feed back to power grid after inversion.However, above-mentioned power battery charge-discharge test instrument
No matter in charging or discharge process, all there is the conversion process of AC and DC, lead to the defeated of power battery charge-discharge test instrument
It is larger to go out ripple, current loss degree is high.Countermeasure common at present is distinguished in the output end of AC/DC converters and inverter
Filter is added, but the good filter one of filtering performance is expensive, second is that the selected parameter of filter is difficult to accurate control.
Invention content
The purpose of the application is to make that power battery charge-discharge test instrument output ripple is small, efficiency for charge-discharge is high.
The purpose of the application is achieved through the following technical solutions：
A kind of power battery charge-discharge test instrument, including electronic control module, accumulator group and multiple two-way DC/DC transformation are provided
Device, each two-way DC/DC converters are equipped with positive terminal e1+, negative electricity end e1-, positive terminal e2+, negative electricity end e2-, accumulator group
Anode is electrically connected the positive terminal e1+ of each two-way DC/DC converters, and the cathode of accumulator group is electrically connected each two-way
The negative electricity end e1- of DC/DC converters is serially connected between the positive terminal e2+ and negative electricity end e2- of each two-way DC/DC converters
At least one power battery, the electronic control module are equipped with A class PWM output channels and B class PWM output channels, each two-way DC/
It is equipped with controlled end G1 on DC converters to connect A class PWM output channels, is equipped on each two-way DC/DC converters controlled
G2 is held to connect B class PWM output channels.
Further, the A classes PWM output channels include multiple PWM_A output channels, and each controlled end G1 is individually connected
One PWM_A output channel；The B classes PWM output channels include multiple PWM_B output channels, and each controlled end G2 individually connects
Connect a PWM_B output channel.
Further, the accumulator group is built-in with multiple accumulators, each accumulator be divided into be serially connected it is multiple
Group, the accumulator in each group are parallel with one another.
Further, the two-way DC/DC converters are equipped with inductance L, capacitance C, N-channel MOS pipe Q1, N-channel MOS pipe
Q2, diode D1, diode D2, the positive terminal e1+ and positive terminal e2+ of the two-way DC/DC converters are connected to be formed just
Busbar BUS+, the negative electricity end e1- and negative electricity end e2- of the two-way DC/DC converters are connected to form negative busbar BUS-, MOS
The poles D and the poles S of pipe Q1 is serially connected on positive bus-bar BUS+, and the poles S connect with the inductance L for being equally serially connected in positive bus-bar BUS+, two poles
The anode and cathode of pipe D1 is separately connected the poles S and the poles D of metal-oxide-semiconductor Q1, the poles S of the poles the D connection metal-oxide-semiconductor Q1 of metal-oxide-semiconductor Q2, metal-oxide-semiconductor
The poles SD of Q2 are connected in negative busbar BUS-, and the anode and cathode of diode D2 is separately connected the poles S and the poles D of metal-oxide-semiconductor Q2, inductance
One end of the separate metal-oxide-semiconductor Q1 of L is connected to negative busbar BUS-, the ends G of metal-oxide-semiconductor Q1 and the ends the G difference of metal-oxide-semiconductor Q2 via capacitance C
As described two controlled ends.
Further, it is serially connected with protective tube F on the positive terminal e1+ of each two-way DC/DC converters.
Further, it is serially connected with switch K on the positive terminal e2+ of each two-way DC/DC converters.
Further, the power battery is lithium battery, Ni-MH battery, lead-acid battery, Hawkins cell, sodium nickel chloride electricity
Pond, smee cell, sodium-sulphur battery or nickel-cadmium cell.
It is stored with computer readable storage medium, computer readable storage medium in above-mentioned power battery charge-discharge test instrument
It inside has program stored therein, when which is executed by electronic control module, realizes a kind of operation method of power battery charge-discharge test instrument.It should
Operation method includes the following steps：A part of two-way DC/DC converters of electric control module controls are depressured, to corresponding dynamic
Power battery charges；Electronic control module controls the two-way DC/DC converters of another part and boosts simultaneously, to make corresponding power electric
Tank discharge.
Advantageous effect：
1, when two-way DC/DC converters are depressured, the energy in accumulator group is to power battery charging, two-way DC/DC
When converter is boosted, the energy in power battery will not to realize can be recycled for energy to battery charging
Form waste；
2, entire charge-discharge test process only relates to DC-DC transformation, and current loss will substantially reduce, therefore improve power battery
The efficiency for charge-discharge of charge-discharge test instrument and equivalent feedback efficiency；
3, since the energy comparison of accumulator group offer is pure, the output ripple of power battery charge-discharge test instrument is small.
Description of the drawings
The application is described further using attached drawing, but the embodiment in attached drawing does not constitute any limit to the application
System, for those of ordinary skill in the art, without creative efforts, can also obtain according to the following drawings
Other attached drawings.
Fig. 1 is the system block diagram of traditional power battery charging and discharging tester.
Fig. 2 is the system block diagram of the power battery charge-discharge test instrument of the application.
Fig. 3 is the circuit diagram of two-way DC/DC converters.
Fig. 4 is the internal circuit schematic diagram of accumulator group.
Specific implementation mode
The application is further described with the following Examples.
See that Fig. 2, power battery charge-discharge test instrument include accumulator group 1, electronic control module 2 and multiple two-way DC/DC transformation
Device 3, each two-way DC/DC converters 3 are equipped with positive terminal e1+ as shown in Figure 3, negative electricity end e1-, positive terminal e2+, negative electricity end
E2-, the anode of accumulator group 1 are electrically connected the positive terminal e1+ of each two-way DC/DC converters 3, the cathode of accumulator group 1
It is electrically connected the negative electricity end e1- of each two-way DC/DC converters 3, the positive terminal e2+ of each two-way DC/DC converters 3 and negative
There are one power batteries 4 for concatenation between electric end e2-.
See Fig. 3, inductance L, capacitance C, N-channel MOS pipe Q1, N-channel MOS pipe are designed in each two-way DC/DC converters 3
Q2, diode D1, diode D2, wherein the positive terminal e1+ and positive terminal e2+ of two-way DC/DC converters 3 are connected to be formed
The negative electricity end e1- of positive bus-bar BUS+, two-way DC/DC converters 3 are connected to form negative busbar BUS-, metal-oxide-semiconductor with negative electricity end e2-
The poles D and the poles S of Q1 is serially connected on positive bus-bar BUS+, and the poles S connect with the inductance L for being equally serially connected in positive bus-bar BUS+, diode
The anode and cathode of D1 is separately connected the poles S and the poles D of metal-oxide-semiconductor Q1.The poles S of the poles the D connection metal-oxide-semiconductor Q1 of metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q2
The poles SD be connected in negative busbar BUS-, the anode and cathode of diode D2 is separately connected the poles S and the poles D of metal-oxide-semiconductor Q2.Inductance L
One end of separate metal-oxide-semiconductor Q1 be connected to negative busbar BUS- via capacitance C, and the ends G of metal-oxide-semiconductor Q1 are controlled end G1, thereon
Electric then metal-oxide-semiconductor Q1 conductings；The ends G of metal-oxide-semiconductor Q2 are controlled end G2, power on then metal-oxide-semiconductor Q2 conductings.When metal-oxide-semiconductor Q1 be connected,
When metal-oxide-semiconductor Q2 cut-offs, the devices such as metal-oxide-semiconductor Q1, diode D2, inductance L constitute BUCK type reduction voltage circuits, and accumulator may be implemented
The charging of 1 pair of power battery 4 of group.Conversely, when metal-oxide-semiconductor Q1 cut-offs, when metal-oxide-semiconductor Q2 is connected, metal-oxide-semiconductor Q2, diode D1, inductance L
Equal devices constitute BOOSY type booster circuits, and charging of the power battery 4 to accumulator group 1 may be implemented.
Further, there are one protective tube F for concatenation on the positive terminal e1+ of each two-way DC/DC converters 3, to this
Two-way DC/DC converters are protected.Also there are one switch K, works for concatenation on the positive terminal e2+ of each two-way DC/DC converters 3
Make the break-make of the manually controllable switch K of personnel to disconnect the company between the two-way DC/DC converters 3 and corresponding power battery 4
It connects, wherein electric-controlled switch, such as relay, metal-oxide-semiconductor can be used in switch K, toggle switch can also be used.Preferably, if switch K is
When electric-controlled switch, a protective tube can be also concatenated again between electric-controlled switch and positive terminal e2+, when electric-controlled switch breaks down
When forming magnetic perturbation, protective tube is disconnected automatic to protect the power battery 4 of rear class.
Above, the internal circuit of electronic control module 2 is the prior art, does not make to be unfolded herein, wherein the core of electronic control module 2
For the unshowned processor for carrying 6 PWM output channels in Fig. 2.PWM output channels on processor can be divided into two class of A, B,
Wherein A classes PWM output channels are used to drive metal-oxide-semiconductor Q1, B the class PWM output channels of two-way DC/DC converters 3 double for driving
To the metal-oxide-semiconductor Q2 of DC/DC converters 3.Specifically, A classes PWM output channels include 3 PWM_A output channels, as shown in Figure 3
A1、A2、A3；B class PWM output channels include 3 PWM_B output channels, B1, B2, B3 as shown in Figure 3.A1, B1 are separately connected
The ends G at the ends G of metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q2 in two-way DC/DC converters 33, A2, B2 are separately connected two-way DC/DC converters 32
The ends G of middle metal-oxide-semiconductor Q1 and the ends G of metal-oxide-semiconductor Q2, A3, B3 be separately connected in two-way DC/DC converters 31 ends G of metal-oxide-semiconductor Q1 and
The ends G of metal-oxide-semiconductor Q2.After such setting, processor can control power battery charge-discharge test instrument to be in following three operating mode：
● pattern one：Charge mode.Under this pattern, PWM_A output channel A1, A2, A3 output pwm signals of processor,
PWM_B output channels B1, B2, B3 of processor export low level, and three two-way DC/DC converters 31,32,33 is made to be in drop
Pressure condition, then three power batteries 41,42,43 charge simultaneously；
● pattern two：Discharge mode.Under this pattern, A1, A2, A3 export low level, and B1, B2, B3 output pwm signal make
Three two-way DC/DC converters 31,32,33 are in pressure-increasning state, then three power batteries 41,42,43 discharge simultaneously；
● pattern three：The mode playback when filling.Under this pattern, A1, A2, B3 output pwm signal, B1, B2, A3 export low electricity
It is flat, so that a two-way DC/DC converters 31,32 is in decompression state, and two-way 33 pressure-increasning state of DC/DC converters, then power electric
Realize that charging is realized in electric discharge, power battery 41,42 in pond 43.The wherein electric discharge electricity of the discharge current of power battery 43 and accumulator group
After stream summarizes, charge jointly to power battery 41,42.Certainly, when filling mode playback be not limited to power battery 41,42 charging and
Power battery 43 discharges.
See that Fig. 4, accumulator group 1 are built-in with multiple accumulators, each accumulator is divided into multiple groups be serially connected, each
Accumulator in group is parallel with one another, the enhancing of output voltage is realized by the series relationship between group and group, by making in group
Accumulator is parallel with one another to realize that the enhancing of output current, the energy density of such accumulator group 1 are increased, further, since
Accumulator group 1 is more and more string structures, and collocation is more flexible, can pass through increase/reduction according to the different testing requirement of client
The means of single accumulator are come the accumulator group 1 for different-energy density of quickly and easily arranging in pairs or groups out.Further, it is preferential using with
4 type of power battery identical accumulator forms accumulator group 1.Wherein, power battery 4 is lithium battery, Ni-MH battery, plumbic acid
Any one in battery, Hawkins cell, sodium chlorination nickel-based battery, smee cell, sodium-sulphur battery, nickel-cadmium cell.
Finally it should be noted that above example is only to illustrate the technical solution of the application, rather than the application is protected
The limitation of range is protected, although being explained in detail to the application with reference to preferred embodiment, those skilled in the art answer
Work as understanding, the technical solution of the application can be modified or replaced equivalently, without departing from the reality of technical scheme
Matter and range.
Claims (10)
1. a kind of power battery charge-discharge test instrument, including electronic control module, it is characterized in that：Further include accumulator group and multiple two-way
DC/DC converters, each two-way DC/DC converters are equipped with positive terminal e1+, negative electricity end e1-, positive terminal e2+, negative electricity end e2-,
The positive terminal e1+ of each two-way DC/DC converters of anode electrical connection of accumulator group, the cathode electrical connection of accumulator group are every
The negative electricity end e1- of a two-way DC/DC converters,
It is serially connected at least one power battery between the positive terminal e2+ and negative electricity end e2- of each two-way DC/DC converters,
The electronic control module is equipped with A class PWM output channels and B class PWM output channels, each on two-way DC/DC converters
A class PWM output channels are connected equipped with controlled end G1, controlled end G2 is equipped with to connect B classes on each two-way DC/DC converters
PWM output channels.
2. a kind of power battery charge-discharge test instrument according to claim 1, it is characterized in that：
The A classes PWM output channels include multiple PWM_A output channels, each controlled end G1 individually one PWM_A output of connection
Channel；
The B classes PWM output channels include multiple PWM_B output channels, each controlled end G2 individually one PWM_B output of connection
Channel.
3. a kind of power battery charge-discharge test instrument according to claim 1, it is characterized in that：The accumulator group is built-in with
Multiple accumulators, each accumulator are divided into multiple groups be serially connected, and the accumulator in each group is parallel with one another.
4. a kind of power battery charge-discharge test instrument according to claim 1, it is characterized in that：The two-way DC/DC transformation
Device is equipped with inductance L, capacitance C, N-channel MOS pipe Q1, N-channel MOS pipe Q2, diode D1, diode D2,
The positive terminal e1+ and positive terminal e2+ of the two-way DC/DC converters are connected to be formed positive bus-bar BUS+, described two-way
The negative electricity end e1- of DC/DC converters is connected to form negative busbar BUS- with negative electricity end e2-,
The poles D and the poles S of metal-oxide-semiconductor Q1 is serially connected on positive bus-bar BUS+, the poles S and the inductance L phases for being equally serially connected in positive bus-bar BUS+
It connecing, the anode and cathode of diode D1 is separately connected the poles S and the poles D of metal-oxide-semiconductor Q1,
The poles S of the poles the D connection metal-oxide-semiconductor Q1 of metal-oxide-semiconductor Q2, the poles SD of metal-oxide-semiconductor Q2 are connected in negative busbar BUS-, the sun of diode D2
Pole and cathode are separately connected the poles S and the poles D of metal-oxide-semiconductor Q2,
One end of the separate metal-oxide-semiconductor Q1 of inductance L is connected to negative busbar BUS- via capacitance C,
The ends G of metal-oxide-semiconductor Q1 and the ends G of metal-oxide-semiconductor Q2 are respectively as described two controlled ends.
5. a kind of power battery charge-discharge test instrument according to claim 1 or 4, it is characterized in that：Each two-way DC/DC becomes
It is serially connected with protective tube F on the positive terminal e1+ of parallel operation.
6. a kind of power battery charge-discharge test instrument according to claim 1 or 4, it is characterized in that：Each two-way DC/DC becomes
It is serially connected with switch K on the positive terminal e2+ of parallel operation.
7. a kind of power battery charge-discharge test instrument according to claim 1, it is characterized in that：Storage in the accumulator group
Battery is identical as the type of power battery.
8. a kind of power battery charge-discharge test instrument according to claim 1 or claim 7, it is characterized in that：The power battery is
Lithium battery, Ni-MH battery, lead-acid battery, Hawkins cell, sodium chlorination nickel-based battery, smee cell, sodium-sulphur battery or nickel-cadmium cell.
9. the operation method of the power battery charge-discharge test instrument described in claim 2, it is characterized in that including the following steps：
A part of two-way DC/DC converters of electric control module controls are depressured, to give corresponding power battery charging；Automatically controlled mould
Block controls the two-way DC/DC converters of another part and boosts simultaneously, other are directly fed after so that corresponding power battery is discharged
Power battery charging.
10. computer readable storage medium, it is characterized in that：It has program stored therein in the computer readable storage medium, the program
When being executed by electronic control module, the method described in claim 9 is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810432385.7A CN108427078A (en) | 2018-05-08 | 2018-05-08 | Power battery charge-discharge test instrument, operation method and its computer readable storage medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810432385.7A CN108427078A (en) | 2018-05-08 | 2018-05-08 | Power battery charge-discharge test instrument, operation method and its computer readable storage medium |
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| CN108427078A true CN108427078A (en) | 2018-08-21 |
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| CN201810432385.7A Pending CN108427078A (en) | 2018-05-08 | 2018-05-08 | Power battery charge-discharge test instrument, operation method and its computer readable storage medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113346589A (en) * | 2021-06-10 | 2021-09-03 | 浙江交通职业技术学院 | Battery management system with bidirectional voltage-regulating charge-discharge function and management method |
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