CN109552083A - A kind of Intelligent charging system of electric automobile based on real-time load monitoring - Google Patents
A kind of Intelligent charging system of electric automobile based on real-time load monitoring Download PDFInfo
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- CN109552083A CN109552083A CN201811488814.9A CN201811488814A CN109552083A CN 109552083 A CN109552083 A CN 109552083A CN 201811488814 A CN201811488814 A CN 201811488814A CN 109552083 A CN109552083 A CN 109552083A
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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
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- 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
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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
- 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
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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
- 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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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Abstract
The invention discloses a kind of Intelligent charging system of electric automobile based on real-time load monitoring, comprising: n battery group, n intelligent charging spot, EV intelligent Charge-control System, distribution transformer monitoring terminal TTU, electric distribution network data collection and monitoring control centre.The present invention, which can effectively reduce extensive electric car and access charging pile in peak of power consumption and concentrate, influences the load impact that entire network system generates when charging, so as to ensure safety, the stability of operation of power networks.
Description
Technical field
The invention belongs to new-energy automobile application, specifically a kind of electric car based on real-time load monitoring
Intelligent charging system.
Background technique
The fast development of automobile industry accelerates the too fast consumption of earth resource, and energy deficiency is also got worse.With
This simultaneously, the tail gas of motor vehicle emission also causes direct pollution to air, destroys the Natural Survival environment of the mankind.For this purpose,
Development of EV has become the main trend of China Automobile Industry.Electric power clean energy resource is used to replace traditional energy as automobile
Driving source not only solves shortage of resources problem, and effectively reduces motor vehicle exhaust emission, conservation of nature ecological environment, symbol
Close sustainable development demand.
Currently, the charging modes that electric car uses mainly have quick charge and normal charge.Which is urgently to be resolved
Problem is: existing quick charge and normal charge mode, not in view of the following extensive electric car concentrates charging to power grid
The influence that operation stability and safety generate, especially in power grid peak of power consumption, the access of large-scale distributed power supply
Strong impact will be generated to power grid；How to reduce extensive electric car and access charging pile in peak of power consumption and is concentrated
It charges and the load impact that entire network system generates is born, how realized at the same time based on current electric grid real-time load parameter
Characteristic and required charging accumulator group state formulate a variety of EV charging schemes, select for EV user.
Summary of the invention
The present invention be in order to solve above-mentioned the shortcomings of the prior art in place of, propose a kind of based on real-time load monitoring
Intelligent charging system of electric automobile accesses charging pile to can effectively reduce extensive electric car in peak of power consumption and is collected
The load impact that entire network system generates is influenced when middle charging, so as to ensure safety, the stability of operation of power networks.
The present invention adopts the following technical scheme that in order to solve the technical problem
A kind of the characteristics of Intelligent charging system of electric automobile based on real-time load monitoring of the invention includes: n battery
Group, n intelligent charging spot, EV intelligent Charge-control System, distribution transformer monitoring terminal TTU, electric distribution network data collection and monitoring
Control centre；
The electric distribution network data collection and monitoring control centre obtain power grid real-time load parameter and pass through itself the first nothing
Line communication module is sent to the distribution transformer monitoring terminal TTU；
The distribution transformer monitoring terminal TTU receives the power grid real-time load by itself the second wireless communication module
Parameter simultaneously passes to the EV intelligent Charge-control System；
I-th of intelligent charging spot obtains i-th of battery group parameter and passes to the EV intelligent Charge-control System；I=
1,2,…,n；
The EV intelligent Charge-control System according to the power grid real-time load parameter and i-th of battery group parameter,
It formulates a variety of charging schemes of i-th of EV user and is sent to i-th of intelligent charging spot for i-th of EV user's selection；
I-th of intelligent charging spot is that i-th of EV is used according to the selected final charging scheme of i-th of EV user
Family provides charging service.
The characteristics of Intelligent charging system of electric automobile of the present invention, lies also in:
I-th of battery group includes: battery pack, battery management system BMS and the first CAN interface；
The battery management system BMS obtains i-th of battery group parameter of the battery pack and by the first CAN
Interface is sent to the intelligent charging spot；I-th of battery group parameter include: the mechanical performance of the battery pack, temperature,
Voltage, electric current and electricity.
I-th of intelligent charging spot includes: charging pile main control MCU, the first Power Line Carrier Communication Module, human-computer interaction
Module, charging modulator loop and the second CAN interface；
The human-computer interaction module obtains the charge requirement of i-th of EV user and is sent to the charging pile main control MCU；
The charging pile main control MCU is obtained according to the charge requirement of i-th of EV user using second CAN interface
I-th of battery group parameter simultaneously passes to the EV intelligent charge control by first Power Line Carrier Communication Module
Device；
The charging pile main control MCU receives the EV intelligent charge by first Power Line Carrier Communication Module and controls
The a variety of charging schemes of i-th of EV user of device transmission are simultaneously sent to the human-computer interaction module for i-th of EV user
Selection；
The selected final charging scheme is sent to institute by the human-computer interaction module by i-th of EV user
Charging pile main control MCU is stated, and controlling the charging modulator loop by the charging pile main control MCU is that i-th of battery group carries out
Charging；
When charging complete or abnormal charging, the charging pile main control MCU passes through the first power line carrier communication mould
Block receives the termination charge command that the EV intelligent Charge-control System is sent, and fills as described in charging pile main control MCU control
Electrical modulation circuit stops working.
The charging modulator loop include: EMI filter module, AC-DC module, APFC circuit, high-frequency inversion full-bridge circuit,
High frequency transformer, rectification filtering module, SG3525 two-way PWM wave generation module and photoelectric coupled circuit；
The EMI filter module filters off in the alternating current of i-th of intelligent charging spot after multiple harmonic component, passes through institute
It states AC-DC module to be rectified to obtain direct current, the direct current carries out active power factor school using the APFC circuit
Just, stable direct current output, and the input as the high-frequency inversion full-bridge circuit are obtained；
The final EV charging scheme that the charging pile main control MCU is selected according to i-th of EV user, described in control
SG3525 two-way PWM wave generation module generates corresponding PWM wave, and carries out isolation processing by the photoelectric coupled circuit, is handled
PWM wave afterwards, for controlling the output of the high-frequency inversion full-bridge circuit, so that needed for high-frequency inversion full-bridge circuit output
Ac square wave；The ac square wave obtains stable DC pulse after rectification filtering module processing, and for pair
I-th of battery group charges.
The EV intelligent Charge-control System includes: controller master cpu, third wireless communication module, the second power line load
Wave communication module sum aggregate master control unit；
The controller master cpu is concurrent by the third wireless communication module acquisition power grid real-time load parameter
Institute's lump control unit is given, second Power Line Carrier Communication Module is recycled to obtain i-th of battery group parameter
It is sent to the lump control unit；
The lump control unit power grid real-time load parameter and i-th of battery group based on the received
Parameter formulates a variety of charging schemes of i-th of EV user and is sent to institute by second Power Line Carrier Communication Module
I-th of intelligent charging spot is stated to select for i-th of EV user；Described i-th received by the lump control unit
When unusual condition occurs in battery group parameter, the termination charge command is passed through second electric power by the lump control unit
Line carrier communication module is sent to i-th of intelligent charging spot.
Compared with prior art, the beneficial effects of the present invention are:
1, intelligent charging spot according to the present invention is powered by same distribution transformer, and installation site is not limited by occasion
System can also realize dispersion installation, it can be achieved that install concentratedly, universal conducive to wideling popularize for intelligent charging spot；
2, Power Line Carrier Communication Module according to the present invention had both saved communication construction cost, while can be effective
Avoid the interference of other extraneous wireless signals；
3, the present invention combines existing electric car charging technique, propose according to current electric grid real-time load parameter characteristic and
Required charging accumulator group state formulates a variety of EV charging schemes, selects for EV user, not only optimizes the multiplicity of charging scheme
Property and available property, and a variety of EV charging schemes can force EV user to use normal charge side instead in power grid peak of power consumption
Formula, or charging when changing into power grid low power consumption are effectively reduced extensive EV and charging are concentrated to rush network load balance
Influence is hit, has ensured safety, the stability of operation of power networks.
Detailed description of the invention
Fig. 1 is overall flow figure of the invention；
Fig. 2 is the flow chart of intelligent charging spot part of the present invention；
Fig. 3 is the flow chart of EV intelligent Charge-control System of the present invention part.
Specific embodiment
Refering to fig. 1, in the present embodiment, a kind of Intelligent charging system of electric automobile based on real-time load monitoring, comprising:
N battery group, n intelligent charging spot, EV intelligent Charge-control System, distribution transformer monitoring terminal TTU, distribution
Network data acquisition and monitoring control centre.
Electric distribution network data collection and monitoring control centre, are the cores of entire distribution automation system, collection monitoring, control
And defencive function is monitored, controlled and is managed to entire power distribution network in one, to be a kind of based on the electronic of real-time load monitoring
Automobile intelligent charging system provides power grid real-time load parameter；Distribution transformer terminal TTU is installed in by distribution transformer simultaneously
The terminal device that transformer is monitored.It is whole using existing electric distribution network data collection and monitoring control centre and distribution transformer
The wireless communication module between TTU is held, electric distribution network data collection and monitoring control centre are obtained into power grid real-time load parameter and sent
Give distribution transformer monitoring terminal TTU.
The power grid real-time load parameter received is sent to by distribution transformer monitoring terminal TTU using wireless communication module
Distribution transformer monitoring terminal TTU；
Distribution transformer monitoring terminal TTU receives power grid real-time load parameter by itself the second wireless communication module and passes
Pass EV intelligent Charge-control System.EV intelligent Charge-control System is mounted on the low-pressure side of distribution transformer.
I-th of intelligent charging spot obtains i-th of battery group parameter and passes to EV intelligent Charge-control System；I=1,
2,…,n；
EV intelligent Charge-control System obtains power grid real-time load parameter and i-th of battery group parameter according to acquired, formulates
A variety of charging schemes of i-th of EV user are simultaneously sent to i-th of intelligent charging spot for i-th of EV user's selection；
Charging scheme includes using charging time and price needed for different charging modes.Such as: in power grid user load
When peak, such as large-scale EV user concentrates charging, then according to each EV user's accumulator of electric car group parameter, is supplied to
The scheme of scheme and the normal charge required time and low charging price of its fast charge required time and high charge price；It is used in power grid
When electric load low ebb, such as large-scale EV user concentrates charging, then according to each EV user's accumulator of electric car group parameter,
The time required to being supplied to its fast charge and the time required to the scheme of the lower charging price and normal charge and side of lower charging price
Case.I-th of intelligent charging spot provides charging clothes according to the selected final charging scheme of i-th of EV user for i-th of EV user
Business.
In specific implementation, i-th of battery group includes: battery pack, battery management system BMS and the first CAN interface.
Battery management system BMS obtains i-th of battery group parameter of battery pack and is sent to intelligence by the first CAN interface
It can charging pile；I-th of battery group parameter includes: mechanical performance, temperature, voltage, electric current and the electricity of battery pack.Using CAN
The purpose of communication be the battery group parameter information that can be reduced the interference of outdoor high noise environments, and once send by
It destroys, can retransmit automatically；For the battery group parameter of transmission, both can according to the voltage, electric current and electricity of current battery,
The foundation for formulating charging scheme is provided for EV intelligent Charge-control System, but can mechanical performance, temperature according to battery pack, differentiate
Battery pack real-time status is ordered intelligent charging spot to terminate charging, is had once there is mechanical performance exception or temperature higher than predetermined value
Effect ensure that the safety of electric car charging；
Referring to Fig.2, i-th of intelligent charging spot include: charging pile main control MCU, it is the first Power Line Carrier Communication Module, man-machine
Interactive module, charging modulator loop and the second CAN interface；
Human-computer interaction module obtains the charge requirement of i-th of EV user and is sent to charging pile main control MCU；
Charging pile main control MCU obtains i-th of battery using the second CAN interface according to the charge requirement of i-th of EV user
Group parameter simultaneously passes to EV intelligent Charge-control System by the first Power Line Carrier Communication Module；
Charging pile main control MCU receives the termination that EV intelligent Charge-control System is sent by the first Power Line Carrier Communication Module
Charge command controls charging modulator loop by charging pile main control MCU and stops working；
Charging pile main control MCU receives the i-th of the transmission of EV intelligent Charge-control System by the first Power Line Carrier Communication Module
The a variety of charging schemes of a EV user are simultaneously sent to human-computer interaction module for i-th of EV user's selection；
Selected final charging scheme is sent to charging pile main control MCU by human-computer interaction module by i-th of EV user,
And controlling charging modulator loop by charging pile main control MCU is that i-th of battery group charges.Using power line carrier as EV
Communication mode between intelligent Charge-control System and i-th of intelligent charging spot both can effectively save the design cost of device, can also
Avoid other interference of the extraneous wireless signal to communication.And the available property of a variety of charging schemes, it both ensure that EV user's
Autonomous right to choose at power grid user peak, by way of improving fast charge charging price, forces a part of EV at the same time
Charging modes when user reelects such as normal charge or network load low ebb can greatly reduce extensive electric car in electricity consumption
Charging pile is accessed when peak to carry out that charging is concentrated to bear the load impact that entire network system generates, and has ensured operation of power networks
Safety, stability.
When charging complete or abnormal charging, charging pile main control MCU receives EV by the first Power Line Carrier Communication Module
The termination charge command that intelligent Charge-control System is sent, and charging modulator loop is controlled by charging pile main control MCU and is stopped working.
In the present embodiment, charging modulator loop includes: that EMI filter module, AC-DC module, APFC circuit, high-frequency inversion are complete
Bridge circuit, high frequency transformer, rectification filtering module, SG3525 two-way PWM wave generation module and photoelectric coupled circuit.
In the alternating current of EMI filter module i-th of intelligent charging spot of elimination after multiple harmonic component, pass through AC-DC module
It is rectified to obtain direct current, direct current carries out active power factor correction using APFC circuit, it is defeated to obtain stable direct current
Out, and the input as institute's high-frequency inversion full-bridge circuit；
Charging pile main control MCU controls SG3525 two-way PWM according to the selected final EV charging scheme of i-th of EV user
Wave generation module generates corresponding PWM wave, and carries out isolation processing by photoelectric coupled circuit, the PWM wave that obtains that treated, for controlling
The output of high-frequency inversion full-bridge circuit, so that ac square wave needed for the output of high-frequency inversion full-bridge circuit；Ac square wave is by whole
Stable DC pulse is obtained after stream filter module processing, and for charging to i-th of battery group.
Refering to Fig. 3, EV intelligent Charge-control System includes: controller master cpu, third wireless communication module, the second electric power
Line carrier communication module sum aggregate master control unit；
Controller master cpu obtains power grid real-time load parameter by third wireless communication module and is sent to lump control
Unit recycles the second Power Line Carrier Communication Module to obtain i-th of battery group parameter and is sent to lump control unit；
Power grid real-time load parameter and i-th of battery group parameter formulate i-th to lump control unit based on the received
A variety of charging schemes of a EV user are simultaneously sent to i-th of intelligent charging spot for i-th by the second Power Line Carrier Communication Module
A EV user's selection.Lump control unit can provide charging scheme simultaneously for multidigit EV user, at the same time, lump control unit
I-th of battery group parameter based on the received, i-th of battery group state of real time on-line monitoring, once there is abnormal shape
Condition, lump control unit pass through the second Power Line Carrier Communication Module immediately and send termination charging life to i-th of intelligent charging spot
It enables, charging modulator loop is controlled by charging pile main control MCU and is stopped working.
Claims (4)
1. a kind of Intelligent charging system of electric automobile based on real-time load monitoring, feature includes: n battery group, n intelligence
It can charging pile, EV intelligent Charge-control System, distribution transformer monitoring terminal TTU, electric distribution network data collection and monitoring control centre；
The electric distribution network data collection and monitoring control centre obtain power grid real-time load parameter and pass through itself the first channel radio
Letter module is sent to the distribution transformer monitoring terminal TTU；
The distribution transformer monitoring terminal TTU receives the power grid real-time load parameter by itself the second wireless communication module
And pass to the EV intelligent Charge-control System；
I-th of intelligent charging spot obtains i-th of battery group parameter and passes to the EV intelligent Charge-control System；I=1,
2,…,n；
The EV intelligent Charge-control System is formulated according to the power grid real-time load parameter and i-th of battery group parameter
A variety of charging schemes of i-th of EV user are simultaneously sent to i-th of intelligent charging spot for i-th of EV user's selection；
I-th of intelligent charging spot is that i-th of EV user mentions according to the selected final charging scheme of i-th of EV user
For charging service.
2. Intelligent charging system of electric automobile according to claim 1, it is characterized in that:
I-th of battery group includes: battery pack, battery management system BMS and the first CAN interface；
The battery management system BMS obtains i-th of battery group parameter of the battery pack and by first CAN interface
It is sent to the intelligent charging spot；I-th of battery group parameter includes: the mechanical performance, temperature, electricity of the battery pack
Pressure, electric current and electricity.
3. Intelligent charging system of electric automobile according to claim 1, it is characterized in that:
I-th of intelligent charging spot includes: charging pile main control MCU, the first Power Line Carrier Communication Module, human-computer interaction mould
Block, charging modulator loop and the second CAN interface；
The human-computer interaction module obtains the charge requirement of i-th of EV user and is sent to the charging pile main control MCU；
Described in the charging pile main control MCU is obtained according to the charge requirement of i-th of EV user using second CAN interface
I-th of battery group parameter simultaneously passes to the EV intelligent Charge-control System by first Power Line Carrier Communication Module；
The charging pile main control MCU receives the EV intelligent Charge-control System by first Power Line Carrier Communication Module and sends out
The a variety of charging schemes of i-th of EV user that send simultaneously are sent to the human-computer interaction module and select for i-th of EV user；
The selected final charging scheme is sent to described fill by the human-computer interaction module by i-th of EV user
Electric stake main control MCU, and controlling the charging modulator loop by the charging pile main control MCU is that i-th of battery group charges；
When charging complete or abnormal charging, the charging pile main control MCU is connect by first Power Line Carrier Communication Module
The termination charge command that the EV intelligent Charge-control System is sent is received, and the charging is controlled by the charging pile main control MCU and is adjusted
Circuit processed stops working.
The charging modulator loop includes: EMI filter module, AC-DC module, APFC circuit, high-frequency inversion full-bridge circuit, high frequency
Transformer, rectification filtering module, SG3525 two-way PWM wave generation module and photoelectric coupled circuit；
The EMI filter module filters off in the alternating current of i-th of intelligent charging spot after multiple harmonic component, by described
AC-DC module is rectified to obtain direct current, and the direct current carries out active power factor correction using the APFC circuit,
Obtain stable direct current output, and the input as the high-frequency inversion full-bridge circuit；
The final EV charging scheme that the charging pile main control MCU is selected according to i-th of EV user, described in control
SG3525 two-way PWM wave generation module generates corresponding PWM wave, and carries out isolation processing by the photoelectric coupled circuit, is handled
PWM wave afterwards, for controlling the output of the high-frequency inversion full-bridge circuit, so that needed for high-frequency inversion full-bridge circuit output
Ac square wave；The ac square wave obtains stable DC pulse after rectification filtering module processing, and for pair
I-th of battery group charges.
4. Intelligent charging system of electric automobile according to claim 1, it is characterized in that:
The EV intelligent Charge-control System includes: that controller master cpu, third wireless communication module, the second power line carrier are logical
Believe module sum aggregate master control unit；
The controller master cpu obtains the power grid real-time load parameter by the third wireless communication module and is sent to
Institute's lump control unit recycles second Power Line Carrier Communication Module to obtain i-th of battery group parameter and sends
To the lump control unit；
The lump control unit power grid real-time load parameter and i-th of battery group parameter based on the received
It formulates a variety of charging schemes of i-th of EV user and is sent to described by second Power Line Carrier Communication Module
I intelligent charging spot is selected for i-th of EV user；I-th of electric power storage received by the lump control unit
When unusual condition occurs in pond group parameter, the lump control unit carries the termination charge command by second power line
Wave communication module is sent to i-th of intelligent charging spot.
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