CN206211639U - A kind of composite energy storing device for being applied to electric automobile - Google Patents
A kind of composite energy storing device for being applied to electric automobile Download PDFInfo
- Publication number
- CN206211639U CN206211639U CN201621235172.8U CN201621235172U CN206211639U CN 206211639 U CN206211639 U CN 206211639U CN 201621235172 U CN201621235172 U CN 201621235172U CN 206211639 U CN206211639 U CN 206211639U
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- Prior art keywords
- energy
- storage module
- super capacitor
- electric automobile
- battery
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- 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
- Y02T10/72—Electric energy management in electromobility
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The utility model discloses a kind of composite energy storing device for electric automobile, including detection control unit, PWM rectifier, DC energy storage module and unsteady flow energy-storage module.The unsteady flow energy-storage module includes DC/DC conversion modules and energy-storage battery, and DC energy storage module is super capacitor.Connected respectively with super capacitor using energy-storage battery and two-way DC/DC current transformers and connect the system architecture of dc bus, improve efficiency for charge-discharge, farthest to play the characteristic of super capacitor and battery, realize the maximization of composite energy storage advantage.Super capacitor is used with battery and flows measure.When a kind of electric discharge of energy storage device or charge power are beyond its maximum electric discharge or charge power limiting value, make it according to maximum electric discharge or charge power discharge and recharge, another energy storage device decides whether the out-of-limit Partial Power of additional compensation according to the dump energy situation of its own.
Description
Technical field
The utility model belongs to the charge and discharge electro-technical field of electric automobile, and in particular to a kind of to be applied to answering for electric automobile
Close energy storage device.
Background technology
With increasingly sharpening for global energy problem and environmental problem, requirement of the people in terms of energy-conservation and environmental protection to automobile
Also more and more higher.The problems such as in order to solve automobile to the heavy dependence of fossil energy and to harmful effect caused by environment,
Countries in the world all increasing investment and exploitation dynamics to the electric automobile of cleanliness without any pollution, with accelerate electric automobile commercialization,
The developing steps of industrialization.
For different types of electric automobile, having in common that between them is required for energy-storage travelling wave tube, on the one hand provides
Automobile power, on the other hand carries out energy feedback.Desirable for electric automobile energy-storage travelling wave tube has：High-energy-density, height
Power density, long circulating charge and discharge electric life, low cost etc..However, electrokinetic cell on the market all can not be individually simultaneously full at present
Sufficient above-mentioned requirements.Therefore, research can improve the mixed energy storage system of electric automobile performance and be of great practical significance.
The content of the invention
According to above the deficiencies in the prior art, technical problem to be solved in the utility model is to propose that one kind is applied to electricity
The composite energy storing device of electrical automobile, is the composite energy storing device of super capacitor and energy-storage battery.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of electric automobile of being applied to
Composite energy storing device, including detection control unit, PWM rectifier, DC energy storage module and unsteady flow energy-storage module, detection control are single
Unit connection PWM rectifier, DC energy storage module and unsteady flow energy-storage module, PWM rectifier are connected to power network, DC energy storage module and
Unsteady flow energy-storage module is connected in dc bus two ends in parallel, and the unsteady flow energy-storage module includes DC/DC conversion modules and energy storage electricity
Pond, the unsteady flow energy-storage module at least, many unsteady flow energy-storage module access dc bus two ends in parallel.
Used as the preferred embodiment of the utility model scheme, the DC/DC conversion modules are that two-way DC/DC becomes mold changing
Block.The DC/DC conversion modules are buck-boost type DC/DC conversion modules.The DC/DC conversion modules include controlling switch S1 and
S2, when energy-storage battery works in discharge condition, DC/DC conversion modules are operated in boost mode, raise DC bus-bar voltage, energy storage
It is battery operated when charged state, DC/DC conversion modules are operated in decompression mode.The DC energy storage module is super capacitor,
Super capacitor is in parallel to access dc bus two ends.The detection control unit includes that high fdrequency component detection unit, super capacitor are filled
Discharge current detection unit, super capacitor terminal voltage detecting unit, energy-storage battery electric power detection unit, the inspection of energy-storage battery terminal voltage
Survey unit, energy-storage battery charging and discharging currents detection unit and controller.The PWM rectifier is voltage-type three-phase bridge rectification electricity
Road.
The utility model beneficial effect is:Two-way DC/DC current transformers are connected simultaneously using energy-storage battery respectively with super capacitor
The system architecture of dc bus is connect, efficiency for charge-discharge is improved, it is real farthest to play the characteristic of super capacitor and battery
The maximization of existing composite energy storage advantage.Super capacitor is used with battery and flows measure.When the electric discharge or charging of a kind of energy storage device
When power is beyond its maximum electric discharge or charge power limiting value, make it according to maximum electric discharge or charge power discharge and recharge, it is another
Energy storage device is planted according to the dump energy situation of its own to decide whether the out-of-limit Partial Power of additional compensation.The method can be carried
Mixed energy storage system high is greatly decreased to the effect of stabilizing of power swing, and the accumulative charge-discharge energy of battery, and then improves
The effect of extension battery service life.The control mode of two-way DC/DC converters can add phase shifting control using PWM.Pass through
The rational dutycycle and phase shifting angle loop bandwidth of setting can realize the uneoupled control of both end voltage matching and power flow direction, meet electricity
Electrical automobile is to the requirement such as current transformer high efficiency, high power density.This composite energy storing device simultaneously connects dc bus, in dc bus
In the case that voltage keeps stabilization, the control to DC/DC converters can be realized by single electric current ring.Meanwhile, energy storage device
It is connected with net side current transformer by DC/DC converters, the voltage of energy storage device can be greatly lowered, makes its flexible discharge and recharge.
Brief description of the drawings
The mark in the content and figure expressed by this specification accompanying drawing is briefly described below：
Fig. 1 is the charge and discharge control block diagram of the energy storage device of specific embodiment of the present utility model.
Fig. 2 is the control principle drawing of the energy storage device based on V2G technologies of specific embodiment of the present utility model.
Wherein, 1, battery module；2nd, super-capacitor module；3rd, two-way DC/DC modules；4th, PWM rectifier；5th, detection control
Unit processed；6th, DC bus-bar voltage/electric current.
Specific embodiment
Below by the description to embodiment, specific embodiment of the present utility model such as the shape of involved each component
Mutual alignment and annexation, the effect of each several part and operation principle, manufacturing process and operation between shape, construction, each several part
Application method etc., is described in further detail, to help those skilled in the art to inventive concept of the present utility model, technology
Scheme has more complete, accurate and deep understanding.
The technical problems to be solved in the utility model is, in view of the shortcomings of the prior art, there is provided one kind is used for electric automobile
Composite energy storing device, farthest to play the characteristic of super capacitor and battery, meet high performance charge-discharge power demand.
To achieve the above object, the utility model provides following technical scheme, including detection control unit, PWM rectifier,
DC energy storage module and unsteady flow energy-storage module.In view of the overall charging and discharging capabilities of mixed energy storage system, also for stabilizing fluctuation
Power, improves efficiency for charge-discharge, employs a kind of super capacitor and battery by mixing that Power Exchange device is connected with dc bus
Box-like energy storing structure.For two-way DC/DC converter circuits, for realizing battery and the respective charge and discharge electric work of super capacitor
Energy.Based on V2G technologies, charged in electricity consumption trough using electric automobile as energy storage device, the sale of electricity in electricity consumption crest, it is right to realize
Power grid frequency modulation peak regulation, can either realize the efficient utilization of generating equipment, can also improve the stability of electric power networks.
The advantage of composite energy storing device of the present utility model can make full use of the high power density of super capacitor, recycle
The advantage of long lifespan and energy-storage battery high-energy-density, with measure is flowed, can more reasonably configure battery and super
The respective capacity of electric capacity, optimizes the operation of system.When dc bus fluctuating power is smaller, energy-storage battery curent change is small, because
This super capacitor output current very little, is compensated by energy-storage battery.And when dc bus fluctuating power is larger, energy-storage battery electricity
Rheologyization is big, understands that super capacitor output current is very big by dynamic current distribution curve, and most of power is mended by super capacitor
Repay.The advantage of so super capacitor high-power output maximizes the use.
As shown in Figure 1 and Figure 2, detection control unit 5 gathers the charging and discharging currents and DC bus-bar voltage of battery module 1
6, and two-way DC/DC converters 3 are controlled according to given d-c bus voltage value, work in single-ended potentiostatic mode, stable DC
The voltage 6 of bus.According to the high frequency power signals of high fdrequency component detection, the real-time charging and discharging currents value of super capacitor 2 is drawn
Size realizing the control to super capacitor charge-discharge electric power, there is provided or the HFS of mutation power is absorbed, to battery
Buffering is provided.When bearing power undulating value is less than given threshold, the collection super capacitor electric current of detection control unit 5 and end are electric
Pressure, the super capacitor side pressure reference value according to setting carries out modified constant-voltage charge, rationally the power energy allocation of control battery 1 and 2,
The voltage value of super capacitor 2 is set to maintain setting value.
When the electric discharge of battery 1 or charge power exceed its nominal discharge or charge power, it is set to be put according to maximum
Electricity or charge power discharge and recharge, using measure is flowed, battery 2 can decide whether volume according to the dump energy situation of its own
External compensation Partial Power.The concatenation super capacitor of battery 2 can be not involved in active power as adjustable reactive power compensation device
Supply, by providing reactive voltage component, improve stabilize effect of the mixed energy storage system to power swing, improve system power
Stability, reliability enhancing.And when battery is crossed beyond its maximum discharge power and put, battery can not remain female
Line voltage stabilization, detection control unit transformation working pattern, disconnecting consumers charge to battery, gather battery tension
And electric current, modified constant-voltage charge is carried out, and then improve the effect of extension battery pack service life.
In terms of system architecture, using super capacitor and energy-storage battery by the two-way DC/DC converters of modularization, access
Dc bus, is easy to produce and assembles.Simultaneously as super capacitor power density is high, instantaneous output is big, can be by using
Many energy storage unsteady flow wired in parallel are accessed dc bus.
To prevent the terminal voltage change during discharge and recharge of battery pack 1 relatively slow, can be by its charging and discharging currents
Control to control its power；Simultaneously as the switching frequency of converter is higher, the end of super capacitor 2 in a switch periods
Voltage also close to constant, so can equally be completed by the control to electric current to the Power Control of super capacitor 2.Energy storage is filled
Put and be connected with net side current transformer by DC/DC converters, the voltage of energy storage device can be greatly lowered, make its flexible charge and discharge
Electricity, makes full use of the capacity of energy storage device, reduces the investment cost of energy-storage system.
The control mode of two-way DC/DC converters adds phase shifting control using PWM.For S1 and S2, when energy storage device work
When discharge condition, energy is flowed from energy storage device to power network, and now two-way Buck/Boost works in Boost (boosting) mould
Formula, raises DC bus-bar voltage.The watt level for controlling energy storage device to discharge by feedback control；When energy storage device is worked in
During charged state, energy is flowed from power network to energy storage device, and now circuit works in Buck (step-down) pattern, by detecting control
The size of the feedback control energy storage device charge power of unit 5.To the control of electronic power switch reaching to and fro flow of power
Purpose, it is not necessary to which extra logic unit can just allow the circuit have an environment of Sofe Switch, and the speed of system response is faster.dq
The vector control method of rotating coordinate system, it is adaptable to which the occasion of input voltage wide scope is used.Under dq coordinate systems, of ac turns
It is DC quantity to be melted into, and DC quantity is controlled can realize stable state zero error.By rational, dutycycle and phase shifting angle are set
Loop bandwidth can realize the uneoupled control of both end voltage matching and power flow direction, meet electric automobile to current transformer high efficiency, height
, effectively can be limited in dash current within safe range by the requirement such as power density.
The utility model is exemplarily described above, it is clear that the utility model is implemented does not receive aforesaid way
Limitation, as long as employing the improvement of the various unsubstantialities that method of the present utility model design and technical scheme are carried out, or not
It is improved that design of the present utility model and technical scheme are directly applied into other occasions, in protection model of the present utility model
Within enclosing.Protection domain of the present utility model should be determined by the scope of protection defined in the claims.
Claims (7)
1. a kind of composite energy storing device for being applied to electric automobile, it is characterised in that including detection control unit, PWM rectifier,
DC energy storage module and unsteady flow energy-storage module, detection control unit connection PWM rectifier, DC energy storage module and unsteady flow energy storage mould
Block, PWM rectifier is connected to power network, and DC energy storage module and unsteady flow energy-storage module are connected in dc bus two ends in parallel, described
Unsteady flow energy-storage module includes DC/DC conversion modules and energy-storage battery, the unsteady flow energy-storage module at least, many unsteady flow energy storage
Wired in parallel accesses dc bus two ends.
2. the composite energy storing device for being applied to electric automobile according to claim 1, it is characterised in that the DC/DC becomes
Mold changing block is two-way DC/DC conversion modules.
3. the composite energy storing device for being applied to electric automobile according to claim 2, it is characterised in that the DC/DC becomes
Mold changing block is buck-boost type DC/DC conversion modules.
4. the composite energy storing device for being applied to electric automobile according to claim 3, it is characterised in that the DC/DC becomes
Mold changing block includes controlling switch S1 and S2, and when energy-storage battery works in discharge condition, DC/DC conversion modules are operated in a liter pressing mold
Formula, raises DC bus-bar voltage, and when energy-storage battery works in charged state, DC/DC conversion modules are operated in decompression mode.
5. the composite energy storing device for being applied to electric automobile according to claim 1, it is characterised in that the DC energy storage
Module is super capacitor, and super capacitor is in parallel to access dc bus two ends.
6. the composite energy storing device for being applied to electric automobile according to claim 5, it is characterised in that the detection control
Unit includes high fdrequency component detection unit, super capacitor charging and discharging currents detection unit, super capacitor terminal voltage detecting unit, storage
Can battery electric quantity detection unit, energy-storage battery terminal voltage detecting unit, energy-storage battery charging and discharging currents detection unit and controller.
7. the composite energy storing device for being applied to electric automobile according to claim 1, it is characterised in that the PWM rectifications
Device is voltage-type three-phase bridge rectifier circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621235172.8U CN206211639U (en) | 2016-11-17 | 2016-11-17 | A kind of composite energy storing device for being applied to electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621235172.8U CN206211639U (en) | 2016-11-17 | 2016-11-17 | A kind of composite energy storing device for being applied to electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206211639U true CN206211639U (en) | 2017-05-31 |
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|---|---|---|---|
| CN201621235172.8U Expired - Fee Related CN206211639U (en) | 2016-11-17 | 2016-11-17 | A kind of composite energy storing device for being applied to electric automobile |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108173258A (en) * | 2018-02-08 | 2018-06-15 | 哈尔滨工业大学 | A kind of virtual inductor of three Port Translations device and simulated capacitance power distribution method |
| CN108777498A (en) * | 2018-04-28 | 2018-11-09 | 宁波中车新能源科技有限公司 | A kind of discharge with intelligent fast uniform function |
| CN109066929A (en) * | 2018-08-17 | 2018-12-21 | 千黎（苏州）电源科技有限公司 | A kind of power battery charge-discharge control system and method |
| CN109586389A (en) * | 2018-10-31 | 2019-04-05 | 北京北交新能科技有限公司 | A kind of vehicle-mounted mixed energy storage system energy control strategy |
| CN109910641A (en) * | 2019-02-26 | 2019-06-21 | 华中科技大学 | A kind of high efficiency composition energy-storage system and its control method for pure electric automobile |
| CN110116639A (en) * | 2019-05-30 | 2019-08-13 | 江苏易飞特科技有限公司 | The method of supplying power to of rail vehicle based on super capacitor |
| CN111030154A (en) * | 2019-12-24 | 2020-04-17 | 新风光电子科技股份有限公司 | Single-phase hybrid energy storage device for electrified railway and control method |
| CN111546939A (en) * | 2020-05-22 | 2020-08-18 | 广东维可特科技有限公司 | Intelligent detection system for vehicle-mounted power battery of electric vehicle |
| CN111628647A (en) * | 2020-05-22 | 2020-09-04 | 广东维可特科技有限公司 | Bidirectional DC/DC converter |
| CN111660878A (en) * | 2020-06-12 | 2020-09-15 | 中车青岛四方车辆研究所有限公司 | Braking energy recovery and emergency traction energy storage system, power supply system and control method |
| CN112018793A (en) * | 2019-05-28 | 2020-12-01 | 中车株洲电力机车研究所有限公司 | Charging system based on round-robin energy storage |
-
2016
- 2016-11-17 CN CN201621235172.8U patent/CN206211639U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108173258A (en) * | 2018-02-08 | 2018-06-15 | 哈尔滨工业大学 | A kind of virtual inductor of three Port Translations device and simulated capacitance power distribution method |
| CN108777498A (en) * | 2018-04-28 | 2018-11-09 | 宁波中车新能源科技有限公司 | A kind of discharge with intelligent fast uniform function |
| CN109066929A (en) * | 2018-08-17 | 2018-12-21 | 千黎（苏州）电源科技有限公司 | A kind of power battery charge-discharge control system and method |
| CN109586389A (en) * | 2018-10-31 | 2019-04-05 | 北京北交新能科技有限公司 | A kind of vehicle-mounted mixed energy storage system energy control strategy |
| CN109910641A (en) * | 2019-02-26 | 2019-06-21 | 华中科技大学 | A kind of high efficiency composition energy-storage system and its control method for pure electric automobile |
| CN112018793A (en) * | 2019-05-28 | 2020-12-01 | 中车株洲电力机车研究所有限公司 | Charging system based on round-robin energy storage |
| CN112018793B (en) * | 2019-05-28 | 2022-08-19 | 中车株洲电力机车研究所有限公司 | Charging system based on round-robin energy storage |
| CN110116639A (en) * | 2019-05-30 | 2019-08-13 | 江苏易飞特科技有限公司 | The method of supplying power to of rail vehicle based on super capacitor |
| CN111030154A (en) * | 2019-12-24 | 2020-04-17 | 新风光电子科技股份有限公司 | Single-phase hybrid energy storage device for electrified railway and control method |
| CN111628647A (en) * | 2020-05-22 | 2020-09-04 | 广东维可特科技有限公司 | Bidirectional DC/DC converter |
| CN111546939A (en) * | 2020-05-22 | 2020-08-18 | 广东维可特科技有限公司 | Intelligent detection system for vehicle-mounted power battery of electric vehicle |
| CN111660878A (en) * | 2020-06-12 | 2020-09-15 | 中车青岛四方车辆研究所有限公司 | Braking energy recovery and emergency traction energy storage system, power supply system and control method |
| CN111660878B (en) * | 2020-06-12 | 2021-07-27 | 中车青岛四方车辆研究所有限公司 | Braking energy recovery and emergency traction energy storage system, power supply system and control method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170531 Termination date: 20171117 |