CN107508335A - Current limiting method and device of charging equipment - Google Patents
Current limiting method and device of charging equipment Download PDFInfo
- Publication number
- CN107508335A CN107508335A CN201710660551.4A CN201710660551A CN107508335A CN 107508335 A CN107508335 A CN 107508335A CN 201710660551 A CN201710660551 A CN 201710660551A CN 107508335 A CN107508335 A CN 107508335A
- Authority
- CN
- China
- Prior art keywords
- current
- charging
- equipment
- charging equipment
- value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H02J7/0077—
-
- 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
- B60L53/60—Monitoring or controlling charging stations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using 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
- Y02T10/70—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
- 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
- Y02T90/12—Electric charging stations
-
- 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)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a current limiting method and a current limiting device of charging equipment, wherein the current limiting method of the charging equipment comprises the following steps: acquiring an input current actual value of the charging equipment; subtracting the actual value of the input current from the upper limit current value of the charging equipment to obtain an error signal; adjusting the error signal to obtain an adjustment signal; and adding the charging current set value of the charged equipment and the adjusting signal to obtain a sum as a new charging current set value of the charged equipment. In the embodiment of the invention, the charging current set value of the charged equipment, such as a vehicle-mounted battery, is adjusted according to the error signal between the upper limit current value and the input current actual value of the charging equipment, such as a vehicle-mounted charger, so that the adjustment of the input current actual value of the charging equipment is realized, the input current actual value is stabilized near the upper limit current value of the charging equipment, and the performance of the charging equipment is improved.
Description
Technical field
The present invention relates to the current limiting method and device of technical field of electric power, more particularly to a kind of charging equipment.
Background technology
Fig. 1 is the structural representation of charging system for electric automobile in the prior art, as shown in figure 1, electric automobile is by filling
Electric stake-Vehicular charger-on-vehicle battery realizes charging, gives the energy transfer of power network to on-vehicle battery end.
But the power grade of charging pile is often different from the power grade of Vehicular charger, for example, situation 1)：Fill
The electric stake output alternating current upper limit is 32A, and Vehicular charger input AC upper current limit is 16A, now then requires vehicle-mounted charge
Machine input current is no more than 16A；Situation 2) the charging pile output alternating current upper limit be 16A, Vehicular charger input AC is electric
The stream upper limit is 32A, now then requires Vehicular charger input current no more than 16A, i.e., both take its small.
In the case where ensureing charging pile and Vehicular charger nonoverload, the input electricity of Vehicular charger need to be increased as far as possible
Stream, to reduce the charging interval.For example, for situation 1)：It is required that the input current of Vehicular charger is equal to 16A upper limit currents, because
Electric current is actually entered for Vehicular charger and will be operate in overload if greater than 16A, Vehicular charger, has run counter to vehicle-mounted charge
Machine initial design rule, does not allow；Vehicular charger actually enters electric current and can be extended if less than 16A, charging interval,
The power grade of Vehicular charger does not highlight, and has run counter to initial design rule.For situation 2)：It is required that Vehicular charger
Input current be equal to 16A upper limit currents because Vehicular charger actually enters electric current if greater than 16A, charging pile is by work
In overload, charging pile initial design rule is run counter to, has not been allowed；Vehicular charger actually enter electric current if less than
16A, charging interval can be extended, and the power grade of charging pile does not highlight, and run counter to initial design rule.
And how Vehicular charger is accurately operated in upper limit current, i.e., Vehicular charger actually enter electric current be equal to it is upper
Threshold currents, turn into the important indicator for weighing Vehicular charger performance.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.
Therefore, first purpose of the present invention is to propose a kind of current limiting method of charging equipment, to charge
Equipment, such as Vehicular charger, what can be stablized is operated near upper limit current, lifts the performance of charging equipment.
Second object of the present invention is to propose a kind of current limiting device of charging equipment.
For the above-mentioned purpose, first aspect present invention embodiment proposes a kind of current limiting method of charging equipment, bag
Include：
Gather the input current actual value of charging equipment；
The upper bound current value of the charging equipment and the input current actual value are subtracted each other, obtain error signal；
The error signal is adjusted, adjusted signal；
The setting charging current value for being electrically charged equipment and the Regulate signal are subtracted each other, are electrically charged described in obtain and conduct
The new setting charging current value of equipment.
The current limiting method of the charging equipment of the embodiment of the present invention, according to charging equipment, such as Vehicular charger, it is upper
Error signal between flow valuve of rationing the power supply and input current actual value, to being electrically charged equipment, such as on-vehicle battery, charging current set
Definite value is adjusted, and then realizes the regulation to the input current actual value of charging equipment, stabilizes it in charging equipment
Near upper bound current value, the performance of charging equipment is improved.
In addition, the current limiting method of the charging equipment of the embodiment of the present invention, also has technical characteristic additional as follows：
In one embodiment of the invention, it is described by the setting charging current value for being electrically charged equipment and the Regulate signal
Before addition, in addition to：
Thresholding limitation processing is carried out to the Regulate signal, if the Regulate signal is more than 0, after thresholding limitation processing
The Regulate signal is changed into 0, if the Regulate signal is less than or equal to 0, the Regulate signal after thresholding limitation processing
It is constant.
In one embodiment of the invention, it is described that the error signal is adjusted, including：
Proportion integral control is carried out to the error signal.
In one embodiment of the invention, the charging equipment is Vehicular charger, and the equipment that is electrically charged is vehicle-mounted
Battery.
In one embodiment of the invention, the upper bound current value of the charging equipment is equal to the defeated of the Vehicular charger
Enter less current rating in both current rating and the output current rating of charging pile.
For the above-mentioned purpose, second aspect of the present invention embodiment proposes a kind of current limiting device of charging equipment, bag
Include：
Acquisition module, for gathering the input current actual value of charging equipment；
First computing module, for the upper bound current value of the charging equipment and the input current actual value to be subtracted each other,
Obtain error signal；
Adjustment module, for the error signal to be adjusted, adjusted signal；
Second computing module, for the setting charging current value and the Regulate signal that are electrically charged equipment to be subtracted each other, obtain
And be electrically charged the new setting charging current value of equipment as described in.
The current limiting device of the charging equipment of the embodiment of the present invention, according to charging equipment, such as Vehicular charger, it is upper
Error signal between flow valuve of rationing the power supply and input current actual value, to being electrically charged equipment, such as on-vehicle battery, charging current set
Definite value is adjusted, and then realizes the regulation to the input current actual value of charging equipment, stabilizes it in charging equipment
Near upper bound current value, the performance of charging equipment is improved.
In addition, the current limiting device of the charging equipment of the embodiment of the present invention, also has technical characteristic additional as follows：
In one embodiment of the invention, the current limiting device also includes：
Module is limited, the Regulate signal for being exported to the adjustment module carries out thresholding limitation processing, if described
Regulate signal is more than 0, then the Regulate signal after thresholding limitation processing is changed into 0, if the Regulate signal is less than or equal to
0, then the Regulate signal after thresholding limitation processing is constant, and the Regulate signal after thresholding limitation processing is inputted to institute
State the second computing module.
In one embodiment of the invention, the adjustment module is specifically used for：Ratio product is carried out to the error signal
Divide PI regulations.
In one embodiment of the invention, the charging equipment is Vehicular charger, and the equipment that is electrically charged is vehicle-mounted
Battery.
In one embodiment of the invention, the upper bound current value of the charging equipment is equal to the defeated of the Vehicular charger
Enter less current rating in both current rating and the output current rating of charging pile.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the structural representation of charging system for electric automobile in the prior art；
A kind of schematic flow sheet of the current limiting method for charging equipment that Fig. 2 is provided by the embodiment of the present invention；
Fig. 3 is the principle schematic of the current limiting method of the charging equipment of embodiment illustrated in fig. 2；
The schematic flow sheet of the current limiting method for another charging equipment that Fig. 4 is provided by the embodiment of the present invention；
Fig. 5 is the principle schematic of the current limiting method of the charging equipment of embodiment illustrated in fig. 4；And
Fig. 6 is a kind of structural representation of the current limiting device of charging equipment provided in an embodiment of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of embodiment is shown in the drawings, wherein identical from beginning to end
Or similar label represents same or similar element or the element with same or like function.Retouched below with reference to accompanying drawing
The embodiment stated is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings the current limiting method and device of the charging equipment of the embodiment of the present invention are described.
A kind of schematic flow sheet of the current limiting method for charging equipment that Fig. 2 is provided by the embodiment of the present invention.Fig. 3 is
The principle schematic of the current limiting method of the charging equipment of embodiment illustrated in fig. 2.As shown in Figure 2 and Figure 3, the charging equipment
Current limiting method comprises the following steps：
S201, gather the input current actual value of charging equipment.
Specifically, the current sensing means such as current sensor can be used, the charging equipment of collection just at work it is defeated
Enter current actual value Iac_sample.Wherein, charging equipment is specifically as follows Vehicular charger etc., for for quilts such as on-vehicle batteries
Charging equipment charges.
S202, the upper bound current value of charging equipment and input current actual value are subtracted each other, obtain error signal.
Specifically, by the charging equipment collected in the upper bound current value Iac_limit and step S201 of charging equipment
Input current actual value Iac_sample subtracts each other, and obtains error signal Error=Iac_limit-Iac_sample.Wherein, fill
The upper bound current value Iac_limit of electric equipment is the higher limit that user wishes input current when charging equipment works.Electronic
In automobile charging system actual, the upper bound current value Iac_limit of charging equipment is the upper bound current value Iac_limit of Vehicular charger
Equal to less current rating in the input current rated value of Vehicular charger and both the output current rating of charging pile.
S203, error signal is adjusted, adjusted signal.
Specifically, existing various adjusters can be used, such as proportional integration (Proportional Integral, letter
Claim PI) adjuster etc., the error signal Error obtained in step S202 is adjusted, for example, PI regulations, adjusted signal
Out1。
S204, the setting charging current value for being electrically charged equipment is added with Regulate signal, obtain and conduct is electrically charged and set
Standby new setting charging current value.
Specifically, by the setting charging current value Idc_ref1 for being electrically charged equipment and the Regulate signal obtained in step S203
Out1 is added, setting charging current value Idc_ref=Idc_ref1+Out1 obtain and new as equipment is electrically charged.
Following relational expression be present because charging equipment band is electrically charged apparatus of load：The input voltage * chargings of charging equipment are set
The voltage * of standby input current * efficiency=be electrically charged equipment is electrically charged the charging current of equipment；
Wherein, the input voltage size of charging equipment can detect, but not controlled in itself by charging equipment；
Efficiency is not steady state value, different under different operating modes；
Being electrically charged the voltage of equipment can detect, but not controlled in itself by charging equipment；
The charging current for being electrically charged equipment is controlled by charging equipment, i.e., charging equipment can set and be electrically charged equipment
Charging current；
To sum up, it is rational that the charging current for being electrically charged equipment is set, just reach the mesh of control charging equipment input current
's.
Therefore, the setting charging current value that equipment is electrically charged in step S204 changes, and then causes the defeated of charging equipment
Enter current actual value Iac_sample to change.
Based on above steps, in the embodiment of the present invention, when the input current actual value Iac_sample of charging equipment is big
When the upper bound current value Iac_limit of charging equipment, error signal Error and Regulate signal Out1 are negative, are electrically charged equipment
Setting charging current value reduce, charge power reduce, and then charging equipment input current actual value Iac_sample reduce；
On the contrary, when the input current actual value Iac_sample of charging equipment is less than the upper bound current value Iac_limit of charging equipment,
Just, to be electrically charged the rise of the setting charging current value of equipment, charge power raises error signal Error and Regulate signal Out1,
And then the input current actual value Iac_sample rises of charging equipment.Finally, the input current actual value Iac_ of charging equipment
Sample will stabilise near the upper bound current value Iac_limit of charging equipment, improve the performance of charging equipment.According to nothing
Floating controller, such as pi regulator carry out PI regulations to error signal Error, then the input current of final charging equipment is actual
Value Iac_sample will stabilise at the upper bound current value Iac_limit of charging equipment.
In the present embodiment, according to charging equipment, such as Vehicular charger, upper bound current value and input current actual value it
Between error signal, to being electrically charged equipment, such as on-vehicle battery, setting charging current value be adjusted, and then realize pair
The regulation of the input current actual value of charging equipment, is stabilized it near the upper bound current value of charging equipment, improves charging
The performance of equipment.
For an embodiment in clear explanation, the current limiting method of another charging equipment is present embodiments provided.Fig. 4
The schematic flow sheet of the current limiting method of another charging equipment provided by the embodiment of the present invention.Fig. 5 is real shown in Fig. 4
Apply the principle schematic of the current limiting method of the charging equipment of example.As shown in Figure 4, Figure 5, the current limit side of the charging equipment
Method may comprise steps of：
S401, gather the input current actual value of charging equipment.
S402, the upper bound current value of charging equipment and input current actual value are subtracted each other, obtain error signal.
S403, error signal is adjusted, adjusted signal.
Specifically, step S401-S403 is identical with the step S201-S203 in a upper embodiment, here is omitted.
S404, thresholding limitation processing is carried out to Regulate signal, if Regulate signal is more than 0, the tune after thresholding limitation processing
Section signal is changed into 0, if Regulate signal is less than or equal to 0, the Regulate signal after thresholding limitation processing is constant.
If specifically, the Regulate signal Out1 obtained in step S403 be more than 0, thresholding limitation processing after Regulate signal
Out2 is changed into 0, i.e. Out2=0.If the Regulate signal Out1 obtained in step S403 is less than or equal to 0, at thresholding limitation
Regulate signal Out2 after reason is constant, i.e. Out2=Out1.
S405, the setting charging current value for being electrically charged equipment is added with Regulate signal, obtain and conduct is electrically charged and set
Standby new setting charging current value.
Specifically, the setting charging current value Idc_ref1 for being electrically charged equipment and the thresholding obtained in step S404 are limited
Regulate signal Out2 after processing is added, setting charging current value Idc_ref=obtain and new as equipment is electrically charged
Idc_ref1+Out2。
Based on above steps, in the embodiment of the present invention, when the input current actual value Iac_sample of charging equipment is big
When the upper bound current value Iac_limit of charging equipment, error signal Error, Regulate signal Out1 and thresholding limitation processing after
Regulate signal Out2 be negative, being electrically charged the setting charging current value of equipment reduces, and charge power reduces, and then charging equipment
Input current actual value Iac_sample is reduced；On the contrary, filled when the input current actual value Iac_sample of charging equipment is less than
During the upper bound current value Iac_limit of electric equipment, error signal Error and Regulate signal Out1 are just, after thresholding limitation processing
Regulate signal Out2 be changed into 0, be electrically charged that the setting charging current value of equipment is constant, and charge power is constant, charging equipment it is defeated
It is also constant to enter current actual value Iac_sample.Finally, the input current actual value Iac_sample of charging equipment will stabilise at
Near the upper bound current value Iac_limit of charging equipment, the performance of charging equipment is improved.According to astatic governor, example
As pi regulator carries out the input current actual value Iac_sample of PI regulations, then final charging equipment to error signal Error
It will stabilise at the upper bound current value Iac_limit of charging equipment.
In the present embodiment, according to charging equipment, such as Vehicular charger, upper bound current value and input current actual value it
Between error signal, to being electrically charged equipment, such as on-vehicle battery, setting charging current value be adjusted, and then realize pair
The regulation of the input current actual value of charging equipment, is stabilized it near the upper bound current value of charging equipment, improves charging
The performance of equipment.
In order to realize above-described embodiment, the present invention also proposes a kind of current limiting device of charging equipment.Fig. 6 is the present invention
A kind of structural representation of the current limiting device for charging equipment that embodiment provides.As shown in fig. 6, the electric current of the charging equipment
Limits device includes：Acquisition module 61, the first computing module 62, the computing module 64 of adjustment module 63 and second.
Acquisition module 61, for gathering the input current actual value of charging equipment.
First computing module 62, for the upper bound current value of charging equipment and input current actual value to be subtracted each other, missed
Difference signal.
Adjustment module 63, for error signal to be adjusted, adjusted signal.
Second computing module 64, for the setting charging current value for being electrically charged equipment to be added with Regulate signal, obtain
With the setting charging current value new as equipment is electrically charged.
Further, in a kind of possible implementation of the embodiment of the present invention, the current limit dress of the charging equipment
Putting also includes：Module 65 is limited, the Regulate signal for being exported to adjustment module 63 carries out thresholding limitation processing, if Regulate signal
More than 0, then the Regulate signal after thresholding limitation processing is changed into 0, if Regulate signal is less than or equal to 0, thresholding limitation processing
Regulate signal afterwards is constant, and the Regulate signal after thresholding limitation processing is inputted to the second computing module 64.
Further, in a kind of possible implementation of the embodiment of the present invention, adjustment module 63 is specifically used for：To by mistake
Difference signal carries out proportion integral control.
Further, in a kind of possible implementation of the embodiment of the present invention, charging equipment is Vehicular charger, quilt
Charging equipment is on-vehicle battery.
Further, in a kind of possible implementation of the embodiment of the present invention, upper bound current value of charging equipment etc.
The less current rating in the input current rated value of Vehicular charger and both the output current rating of charging pile.
It should be noted that the explanation of the foregoing current limiting method embodiment to charging equipment is also applied for the reality
The current limiting device of the charging equipment of example is applied, here is omitted.
In the embodiment of the present invention, according to charging equipment, such as Vehicular charger, upper bound current value and input current it is actual
Error signal between value, to being electrically charged equipment, such as on-vehicle battery, setting charging current value be adjusted, and then realize
Regulation to the input current actual value of charging equipment, stabilizes it near the upper bound current value of charging equipment, improves
The performance of charging equipment.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
Any process or method described otherwise above description in flow chart or herein is construed as, and represents to include
Module, fragment or the portion of the code of the executable instruction of one or more the step of being used to realize custom logic function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discuss suitable
Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress used with reference to these instruction execution systems, device or equipment
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wiring
Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium, which can even is that, to print the paper of described program thereon or other are suitable
Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage
Or firmware is realized.Such as, if realized with hardware with another embodiment, following skill well known in the art can be used
Any one of art or their combination are realized：With the logic gates for realizing logic function to data-signal from
Logic circuit is dissipated, the application specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene can compile
Journey gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method carries
Suddenly it is that by program the hardware of correlation can be instructed to complete, described program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, can also
That unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould
Block can both be realized in the form of hardware, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized in the form of software function module and as independent production marketing or in use, can also be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..Although have been shown and retouch above
Embodiments of the invention are stated, it is to be understood that above-described embodiment is exemplary, it is impossible to be interpreted as the limit to the present invention
System, one of ordinary skill in the art can be changed to above-described embodiment, change, replace and become within the scope of the invention
Type.
Claims (10)
1. a kind of current limiting method of charging equipment, it is characterised in that comprise the following steps：
Gather the input current actual value of charging equipment；
The upper bound current value of the charging equipment and the input current actual value are subtracted each other, obtain error signal；
The error signal is adjusted, adjusted signal；
The setting charging current value for being electrically charged equipment is added with the Regulate signal, equipment is electrically charged described in obtain and conduct
New setting charging current value.
2. current limiting method according to claim 1, it is characterised in that described to set the charging current for being electrically charged equipment
Before definite value is added with the Regulate signal, in addition to：
Thresholding limitation processing is carried out to the Regulate signal, it is described after thresholding limitation processing if the Regulate signal is more than 0
Regulate signal is changed into 0, if the Regulate signal is less than or equal to 0, the Regulate signal after thresholding limitation processing is constant.
3. current limiting method according to claim 1, it is characterised in that it is described that the error signal is adjusted,
Including：
Proportion integral control is carried out to the error signal.
4. current limiting method according to claim 1, it is characterised in that the charging equipment is Vehicular charger, institute
It is on-vehicle battery to state and be electrically charged equipment.
5. current limiting method according to claim 4, it is characterised in that the upper bound current value of the charging equipment is equal to
Less current rating in both the input current rated value of the Vehicular charger and the output current rating of charging pile.
A kind of 6. current limiting device of charging equipment, it is characterised in that including：
Acquisition module, for gathering the input current actual value of charging equipment；
First computing module, for the upper bound current value of the charging equipment and the input current actual value to be subtracted each other, obtain
Error signal；
Adjustment module, for the error signal to be adjusted, adjusted signal；
Second computing module, for the setting charging current value for being electrically charged equipment to be added with the Regulate signal, obtained sum
The new setting charging current value of equipment is electrically charged as described.
7. current limiting device according to claim 6, it is characterised in that also include：
Module is limited, the Regulate signal for being exported to the adjustment module carries out thresholding limitation processing, if the regulation
Signal is more than 0, then the Regulate signal after thresholding limitation processing is changed into 0, if the Regulate signal is less than or equal to 0,
The Regulate signal after thresholding limitation processing is constant, and the Regulate signal after thresholding limitation is handled is inputted to described the
Two computing modules.
8. current limiting device according to claim 6, it is characterised in that the adjustment module is specifically used for：To described
Error signal carries out proportion integral control.
9. current limiting device according to claim 6, it is characterised in that the charging equipment is Vehicular charger, institute
It is on-vehicle battery to state and be electrically charged equipment.
10. current limiting device according to claim 9, it is characterised in that upper bound current value of the charging equipment etc.
The less current rating in the input current rated value of the Vehicular charger and both the output current rating of charging pile
Value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710660551.4A CN107508335B (en) | 2017-08-04 | 2017-08-04 | Current limiting method and device of charging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710660551.4A CN107508335B (en) | 2017-08-04 | 2017-08-04 | Current limiting method and device of charging equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107508335A true CN107508335A (en) | 2017-12-22 |
| CN107508335B CN107508335B (en) | 2021-03-19 |
Family
ID=60689102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710660551.4A Active CN107508335B (en) | 2017-08-04 | 2017-08-04 | Current limiting method and device of charging equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107508335B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108258763A (en) * | 2018-01-29 | 2018-07-06 | 江苏万帮德和新能源科技股份有限公司 | For adjusting output current error precision methods and charging pile |
| CN113135108A (en) * | 2020-07-30 | 2021-07-20 | 长城汽车股份有限公司 | Charging control method and system and vehicle |
| CN113815466A (en) * | 2021-11-03 | 2021-12-21 | 阳光电源股份有限公司 | Charging pile output control method and device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101262176A (en) * | 2007-03-09 | 2008-09-10 | 通用汽车环球科技运作公司 | Method and system for operating a power converter |
| CN201639320U (en) * | 2010-01-18 | 2010-11-17 | 上海东裕电动车有限公司 | Electric vehicle and solar charging device thereof |
| WO2012165071A1 (en) * | 2011-05-27 | 2012-12-06 | シャープ株式会社 | Charger and charging device for charging electric vehicle |
| CN102916440A (en) * | 2012-09-20 | 2013-02-06 | 中国电力科学研究院 | Battery energy storage system based power conversion system and control method thereof |
| CN103187758A (en) * | 2011-12-31 | 2013-07-03 | 比亚迪股份有限公司 | Charging system for electric automobile and electric automobile with same |
| JP2013251961A (en) * | 2012-05-31 | 2013-12-12 | Fuji Electric Co Ltd | Charger |
-
2017
- 2017-08-04 CN CN201710660551.4A patent/CN107508335B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101262176A (en) * | 2007-03-09 | 2008-09-10 | 通用汽车环球科技运作公司 | Method and system for operating a power converter |
| CN201639320U (en) * | 2010-01-18 | 2010-11-17 | 上海东裕电动车有限公司 | Electric vehicle and solar charging device thereof |
| WO2012165071A1 (en) * | 2011-05-27 | 2012-12-06 | シャープ株式会社 | Charger and charging device for charging electric vehicle |
| CN103187758A (en) * | 2011-12-31 | 2013-07-03 | 比亚迪股份有限公司 | Charging system for electric automobile and electric automobile with same |
| JP2013251961A (en) * | 2012-05-31 | 2013-12-12 | Fuji Electric Co Ltd | Charger |
| CN102916440A (en) * | 2012-09-20 | 2013-02-06 | 中国电力科学研究院 | Battery energy storage system based power conversion system and control method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 徐智威: "基于动态分时电价的电动汽车充电站有序充电策略", 《中国电机工程学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108258763A (en) * | 2018-01-29 | 2018-07-06 | 江苏万帮德和新能源科技股份有限公司 | For adjusting output current error precision methods and charging pile |
| CN113135108A (en) * | 2020-07-30 | 2021-07-20 | 长城汽车股份有限公司 | Charging control method and system and vehicle |
| CN113135108B (en) * | 2020-07-30 | 2022-08-19 | 长城汽车股份有限公司 | Charging control method and system and vehicle |
| CN113815466A (en) * | 2021-11-03 | 2021-12-21 | 阳光电源股份有限公司 | Charging pile output control method and device |
| CN113815466B (en) * | 2021-11-03 | 2023-08-11 | 阳光电源股份有限公司 | Charging pile output control method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107508335B (en) | 2021-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Son et al. | Improvement of composite load modeling based on parameter sensitivity and dependency analyses | |
| EP2518852B1 (en) | Power monitoring and control apparatus and power monitoring and control method | |
| CN105051559B (en) | The charged state apparatus for predicting of secondary cell and the charged state estimating method of secondary cell | |
| CN104253458B (en) | Performance Test System, test method and the electronic device of USB charge cables | |
| CN207021751U (en) | For preventing cell voltage from exceeding the equipment and system of voltage threshold | |
| CN103460064A (en) | Method and device for predicting state-of-health of battery, and battery management system using same | |
| CN107508335A (en) | Current limiting method and device of charging equipment | |
| CN106662621A (en) | Battery state detection device, secondary battery system, program product, and battery state detection method | |
| DE102015110920A1 (en) | Real-time battery estimate | |
| CN109934955A (en) | Charge mode recognition methods, device, terminal device and storage medium | |
| CN102169167A (en) | Device and method for detecting calculation accuracy of state of charge (SOC) of battery pack | |
| CN106828134A (en) | The self-adapting estimation of the connection resistance in traction battery | |
| CN108028546A (en) | Generating equipment and power generation control | |
| DE102015109286A1 (en) | Battery Leakage Estimation System and Method | |
| DE102016224295A1 (en) | Method for operating a charging device, charging device and motor vehicle | |
| KR102259265B1 (en) | How to estimate the state of charge for a battery cell | |
| CN108227817A (en) | Power battery power state control method, device and equipment | |
| CN106921199A (en) | The power system of Intelligent charging station and intelligent charging method | |
| CN105871021A (en) | Battery management system and method for rapidly charging battery pack of electric bicycle | |
| CN109428352A (en) | electronic device and charging method thereof | |
| CN105703428A (en) | Charging pile power consumption capacity distribution system and control method thereof | |
| CN104901377B (en) | Energy storage charging equipment and mobile charging device | |
| Ghadbane et al. | A Load Following Energy Management Strategy for a Battery-Supercapacitor Hybrid Power System Implemented with a PIL Co-Simulation Approach | |
| Liu et al. | Power distribution strategy based on state of charge balance for hybrid energy storage systems in all-electric ships | |
| CN107121642A (en) | SOH coefficient adjusting method and device for power battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |