CN207410042U - Energy storage type power battery analog power structure - Google Patents
Energy storage type power battery analog power structure Download PDFInfo
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- CN207410042U CN207410042U CN201721417396.5U CN201721417396U CN207410042U CN 207410042 U CN207410042 U CN 207410042U CN 201721417396 U CN201721417396 U CN 201721417396U CN 207410042 U CN207410042 U CN 207410042U
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Abstract
Energy storage type power battery analog power structure, is related to field of power electronics.Including power battery analog power, the power battery analog power includes the primary input being sequentially connected in series switch, input contactor, AC/DC power modules and DC/DC power modules, and capacitance C2 is connected between the positive and negative anodes of DC/DC voltage regulating module output terminals；The energy-storage module that the output terminal of AC/DC power modules is connected with the high frequency time for generating power battery analog power during the test, interrupted, feedback energy of the duration less than 20ms stores.The utility model innovation on the basis of the second generation tests power supply adds energy-storage module, dc bus end is stored in for high frequency time, interrupted, feedback electromotive force of the duration less than 20ms in test process, terminate to continue to supply dc bus use under power supply is in output state in feedback, directly feedback net number can be greatly decreased, the pollution to power grid is reduced, while also improves overall efficiency.
Description
Technical field
The utility model is related to field of power electronics, are specially a kind of energy storage type power battery analog power structure.
Background technology
Precipitation of the new-energy automobile Jing Guo last decade, had welcome the opportunity of high speed development in recent years.With new-energy automobile
The promotion of production capacity, energy in direct upstream industry new energy motor, electric machine controller and new energy resource power battery test
Consumption be increasingly taken seriously.
The direct consuming type test power supply that first generation motor and electric machine controller experimental power supply use（In test process
Energy resistance in braking regeneration energy or battery testing is consumed in the form of heat, abbreviation consuming type）.
Second generation motor and electric machine controller test power supply are two-way feed-back type test power supplys, and the test of two-way feed-back type is electric
Source can realize energy the energy feedback in the braking regeneration energy or battery testing in new energy test process to power grid
Amount recycles, but being continuously increased with power supply installed capacity, feedback electric energy gradually cause electric power to the pollution of power grid
Department note that part has begun power quality more demanding occasion in limitation electric energy feedback power grid.
Research indicates that energy feedback duration of the electromechanical testing in the process more than 80% is less than 20ms（Even 10ms）, this
Kind of high frequency time, interrupted feedback pattern are the most serious to electric network pollution, reduce this high frequency time, interrupted feedback number can pole
Pollution of the reduction of big degree to power grid.
Utility model content
The purpose of this utility model is to provide a kind of energy storage type power battery analog power structure, and power supply is tested in the second generation
On the basis of innovation add energy-storage module, in test process high frequency time, interrupted, the continuous time be less than the feedback of 20ms
Electromotive force is stored in dc bus end, terminates to continue to supply dc bus use under power supply is in output state in feedback, can be big
Width, which is reduced, directly presents net number, reduces the pollution to power grid, while also improves overall efficiency.
Realizing the technical solution of above-mentioned purpose is：Energy storage type power battery analog power structure is simulated including power battery
Power supply, the power battery analog power include be sequentially connected in series primary input switch, input contactor, AC/DC power modules and
DC/DC power modules are connected with capacitance C2 between the positive and negative anodes of DC/DC voltage regulating module output terminals；
It is characterized in that：The output terminal of AC/DC power modules is connected with testing power battery analog power
The high frequency time that is generated in journey, the energy-storage module that interrupted, feedback electromotive force of the duration less than 20ms is stored.
The utility model innovation on the basis of the second generation tests power supply adds energy-storage module, in test process
High frequency time, interrupted, feedback electromotive force of the duration less than 20ms are stored in dc bus end, and terminating power supply in feedback is in
Continue to supply dc bus use under output state, directly feedback net number can be greatly decreased, reduce the pollution to power grid, while
Improve overall efficiency.
Compared with the advantageous effect of the prior art：1）The power grade of AC/DC power modules can be reduced, reduce prime device
Cost；2）Reduce the loss of device, improve overall efficiency；3）Level-one response switching is reduced, dynamic response is faster；4）Small-power
Energy direct storage there are machine inside, will not frequent feedback grid, reduce the pollution to power grid.
Further, LCL filter circuits are serially connected between input contactor JK, AC/DC power module.
Further, the energy-storage module includes energy storage filter inductance L, filter capacitor C1, IGBT module Q, anti-and two poles
Pipe D, dc circuit breaker J, current monitoring module and energy-storage units E；
The filter capacitor C1 is connected between the positive and negative anodes of AC/DC power module outlets, the positive terminal of energy-storage units E
It is connected with the C poles of IGBT module Q, the negative pole end of energy-storage units E is connected by the negative pole end of dc circuit breaker J and filter capacitor C1
It connects, the E poles of IGBT module Q connect after being concatenated with energy storage filter inductance L, current monitoring module TC with the positive terminal of filter capacitor C1
It connects, the E poles of anti-and diode D the anode connection IGBT module Q, anti-and diode D the anode connection IGBT module Q
C poles.
Further, the energy-storage units E is battery pack or super capacitor.
Further, current monitoring module is Hall sensor.
The operation principle of energy-storage module is：
, AC/DC power modules output voltage be Ubus, operating voltage U1, feedback threshold value be Δ U, i.e., as Ubus ＞
During U1+ Δ U, AC/DC power modules start feedback.
, energy-storage units E operating voltage for Ubatt, Ubus=Ubatt during normal work.When Ubus voltages are less than busbar
During setting value Ubus, IGBT module Q pulsing ones, pulse frequency is fixed, and duty cycle gradually increases, and is charged for filter capacitor C1.
, when Ubus voltages are higher than Ubatt voltages, by energy storage filter inductance L, anti-and diode D is energy-storage units E
It charges.In Ubatt<Energy will not feed back to power grid by AC/DC power modules during U1+ Δ U.
, current monitoring module TC monitorings energy-storage units E charging and discharging electric current, and limit duty cycle, ensure electric current prison
The detected value for surveying module TC is consistently less than Imax.
, J is disconnected when Ubatt is more than overvoltage protection value, cut-out and the connection of Ubus, ensure the safety of energy-storage units E.
Description of the drawings
Fig. 1 is the circuit diagram of the utility model.
Specific embodiment
As shown in Figure 1, the utility model includes power battery analog power, power battery analog power includes being sequentially connected in series
Primary input switch 1, input contactor 2, LCL filter circuits 3, AC/DC power modules 4 and DC/DC power modules 5, AC/DC electricity
The anode of 4 output terminal of source module is connected with capacitance between being serially connected with the positive and negative anodes of 5 output terminal of fuse FU, DC/DC voltage regulating module
C2。
The output terminal of AC/DC power modules 4 is connected with generate power battery analog power during the test
High frequency time, the energy-storage module 6 that interrupted, feedback electromotive force of the duration less than 20ms is stored, energy-storage module 6 include storage
It can filter inductance L, filter capacitor C1, IGBT module Q, anti-and diode D, dc circuit breaker J, current monitoring module TC and energy storage
Unit E；
Filter capacitor C1 is connected between the positive and negative anodes of the output terminal of AC/DC power modules 4, the positive terminal of energy-storage units E
It is connected with the C poles of IGBT module Q, the negative pole end of energy-storage units E is connected by the negative pole end of dc circuit breaker J and filter capacitor C1
It connects, the E poles of IGBT module Q connect after being concatenated with energy storage filter inductance L, current monitoring module TC with the positive terminal of filter capacitor C1
It connects, the E poles of anti-and diode D the anode connection IGBT module Q, the C of anti-and diode D anode connection IGBT module Q
Pole.
In the present embodiment, battery or super capacitor may be employed in energy-storage units E.
In the present embodiment, Hall sensor may be employed in current monitoring module TC.
The operation principle of energy-storage module 6 is：
, AC/DC power modules 4 output voltage be Ubus, operating voltage U1, feedback threshold value be Δ U, that is, work as Ubus
During ＞ U1+ Δ U, AC/DC power modules start feedback.
, energy-storage units E operating voltage for Ubatt, Ubus=Ubatt during normal work.When Ubus voltages are less than busbar
During setting value Ubus, IGBT module Q pulsing ones, pulse frequency is fixed, and duty cycle gradually increases, and is charged for filter capacitor C1.
, when Ubus voltages are higher than Ubatt voltages, by energy storage filter inductance L, anti-and diode D is energy-storage units E
It charges.In Ubatt<Will not power grid be fed back to by AC/DC power modules during U1+ Δ U.
, current monitoring module TC monitorings energy-storage units E charging and discharging electric current, and limit duty cycle, ensure electric current prison
The detected value for surveying module TC is consistently less than Imax.
, J is disconnected when Ubatt is more than overpressure value, cut-out and the connection of energy-storage units E, ensure the safety of energy-storage units E.
Claims (5)
1. energy storage type power battery analog power structure, including power battery analog power, the power battery analog power bag
Include the primary input switch being sequentially connected in series, input contactor, AC/DC power modules and DC/DC power modules, DC/DC voltage regulating modules
Capacitance C2 is connected between the positive and negative anodes of output terminal；
It is characterized in that：The output terminal of AC/DC power modules be connected with for by power battery analog power during the test
The high frequency time of generation, the energy-storage module that interrupted, feedback energy of the duration less than 20ms is stored.
2. energy storage type power battery analog power structure according to claim 1, it is characterised in that：Input contactor JK,
LCL filter circuits are serially connected between AC/DC power modules.
3. a kind of energy storage type power battery analog power structure according to claim 1, it is characterised in that：The energy storage mould
Block includes energy storage filter inductance L, filter capacitor C1, IGBT module Q, anti-and diode D, dc circuit breaker J, current monitoring module
TC and energy-storage units E；
The filter capacitor C1 is connected between the positive and negative anodes of AC/DC power module outlets, the positive terminal of energy-storage units E with
The C poles connection of IGBT module Q, the negative pole end of energy-storage units E are connected by dc circuit breaker J with the negative pole end of filter capacitor C1,
The E poles of IGBT module Q are connected after being concatenated with energy storage filter inductance L, current monitoring module TC with the positive terminal of filter capacitor C1, institute
State the E poles of anti-and diode D anode connection IGBT module Q, the C of anti-and diode D the anode connection IGBT module Q
Pole.
4. energy storage type power battery analog power structure according to claim 3, it is characterised in that：The energy-storage units are
Battery or super capacitor.
5. energy storage type power battery analog power structure according to claim 3, it is characterised in that：Current monitoring module is
Hall sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721417396.5U CN207410042U (en) | 2017-10-31 | 2017-10-31 | Energy storage type power battery analog power structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721417396.5U CN207410042U (en) | 2017-10-31 | 2017-10-31 | Energy storage type power battery analog power structure |
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| CN207410042U true CN207410042U (en) | 2018-05-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742896A (en) * | 2017-10-31 | 2018-02-27 | 国充充电科技江苏股份有限公司 | Energy storage type electrokinetic cell analog power structure |
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2017
- 2017-10-31 CN CN201721417396.5U patent/CN207410042U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742896A (en) * | 2017-10-31 | 2018-02-27 | 国充充电科技江苏股份有限公司 | Energy storage type electrokinetic cell analog power structure |
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