CN109861322A - A kind of electric automobile charging station internal loading propertional regulator - Google Patents
A kind of electric automobile charging station internal loading propertional regulator Download PDFInfo
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- CN109861322A CN109861322A CN201910044880.5A CN201910044880A CN109861322A CN 109861322 A CN109861322 A CN 109861322A CN 201910044880 A CN201910044880 A CN 201910044880A CN 109861322 A CN109861322 A CN 109861322A
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Abstract
The present invention relates to a kind of electric automobile charging station internal loading propertional regulators, including one-chip computer hardware system element group.The present invention utilizes the one-chip computer hardware system element group for being embedded with load balancing algorithms to monitor the occupied information of charging pile by CAN bus, and passes through the upper limit of the power that CAN bus controls charging pile.Reasonable distribution has been carried out to the power on charging peak and idle under the premise of total upper limit of the power does not rise to control cost, both all charging piles while the demand of charging in charging station had been taken into account, in turn ensure that the vehicle reached at first is fully charged at first, and after its is fully charged, charging capacity is released to other charging piles.
Description
Technical field
The present invention relates to electric vehicle charging fields, and in particular to a kind of electric automobile charging station internal loading well-balanced adjustment
Device.
Background technique
Electric automobile charging station (hereinafter referred to as charging station), refers to and (is hereinafter referred to as charged by multiple electric automobile charging piles
Stake) cluster composition stopping for charging place.The calculated load of charging station generally uses demand coefficient method to be estimated: at such as one
The charging station being made of 6 charging piles, if the capacity of each charging pile is 15 kilowatts, Required coefficient 0.8, then the charging station
Calculated load be all charging pile capacity summation multiplied by Required coefficient namely 72 kilowatts.Power supply unit can be the charging station
There is provided maximum 72 kilowatts of electric power, the limit for tonnage short-circuiting device that load limitation is arranged by network distribution transformer low-pressure side acts.Work as electricity consumption
When load is beyond limit for tonnage breaker preset condition, breaker actuation tripping disconnects power supply line.
It arrives when phase commuter rush hour, when all charging columns are charged simultaneously with maximum capacity in charging station, total load
90 kilowatts are up to, limit for tonnage breaker will act, tripping failure so that the automobile of the charging in station charges.If by Required coefficient
It is adjusted to 1, although avoid all charging piles while having a power failure when charging at full capacity, due to most of non-commuter rush hour
Peak load is not achieved in phase total load, and charging station owner can pay more electricity charge.
Summary of the invention
In order to solve the above-mentioned technical problem, it is as follows to provide technical solution by the present invention:
A kind of electric automobile charging station internal loading propertional regulator, including one-chip computer hardware system element group.It is described
One-chip computer hardware system element group is embedded with load balancing algorithms, and one-chip computer hardware system element group is installed on charging
In the plant-grid connection case stood, the alternating-current power supply that specification is 220V50Hz is obtained by plant-grid connection case, the one-chip computer is hard
CAN bus is connected to the charging module of each charging pile in charging station in the charged station of part system element group.
Number is occupied in real time when one-chip computer hardware system element group monitors the charging pile in charging station by CAN bus
Less than in charging station when charging pile sum, then the one-chip computer hardware system element group upper limit of the power average mark that charging station is total
Charging pile in each use of dispensing；
Number is occupied in real time when one-chip computer hardware system element group monitors the charging pile in charging station by CAN bus
Equal to when charging pile sum, then one-chip computer hardware system element group deducts the total upper limit of the power of charging station most in charging station
The charging pile being averagely allocated to again after the power of the charging pile first started to charge in other each uses.
The core of this load balancing adjuster is an electronic information control unit, using general under current technical status
Performance embedded microprocessor system can run CAN bus.Automobile to be charged has power-supply management system (hereinafter referred to as
BMS system), after charging passes to, information can be exchanged with charging pile at once.Pass through bus mode, one-chip computer hardware system
Element group of uniting obtains the occupied information of each charging pile in charging station, after the above-mentioned occupied information of comprehensive analysis, in conjunction with being embedded in list
The load balancing algorithms of piece computer hardware system element group, the charging module of each charging pile are controlled by CAN bus, in real time
Limit the maximum power output of charging module.
The central principle of load balancing algorithms: if the charging pile in charging station occupies number n less than charging in charging station in real time
Stake sum N, then the upper limit of the power of each charging pile is P=P0/n, and wherein P0 is the total upper limit of the power of charging station；If in charging station
Charging pile occupy number n in real time equal to charging pile sum N in charging station, then the upper limit of the power of each charging pile is P=(P0-
P1)/(n-1), wherein P1 is the real time charging power for reaching the vehicle of our station charging at first.This have the consequence that total
Under the premise of upper limit of the power P0 does not rise to control cost, all charging piles while the demand of charging in charging station had both been taken into account,
In turn ensure that the vehicle reached at first is fully charged at first, and after its is fully charged, charging capacity is released to other charging piles.
Preferably, further including CAN bus level converter, CAN interface element group, the one-chip computer hardware
System element group is successively connect through CAN bus level converter, CAN interface element group with CAN bus in charging station.CAN
Bus level converter is the major part of CAN bus communication, and function is the logic one-chip computer hardware system element group
Level conversion is the logic level that CAN bus requires, and realizes the electrical isolation of internal logic circuit and outer logic circuit.
CAN interface is bus hardware interface plug connector, realizes that external circuit bus quickly connects.
Preferably, the one-chip computer hardware system element group is also connected with debugging keyboard and debugging display
Device.Debugging keyboard and debugging display are convenient in initial installation or subsequent maintenance to one-chip computer hardware system element
Group carries out input and visualization display, improves the efficiency of debugging.
Specifically, the one-chip computer hardware system element group uses dominant frequency in 16 single-chip microcontrollers of 40MHz or more.This
One-chip computer hardware system element group used in load balancing adjuster is the core of hardware, realizes storage, logical operation
And control action, 16 single-chip microcontrollers using the dominant frequency under current technical status in 40MHz or more can be met the requirements.
Compared with prior art, the beneficial effects of the present invention are: the present invention utilizes the monolithic for being embedded with load balancing algorithms
Computer hardware system element group monitors the occupied information of charging pile by CAN bus, and controls charging pile by CAN bus
The upper limit of the power.The power on charging peak and idle is closed under the premise of total upper limit of the power does not rise to control cost
Reason distribution had both taken into account all charging piles while the demand of charging in charging station, and had in turn ensured that the vehicle reached at first filled at first
Full electricity, and after its is fully charged, charging capacity is released to other charging piles.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is device connection schematic diagram when using the present invention in charging station；
Fig. 2 is the hardware structural diagram of load balancing adjuster of the present invention；
Fig. 3 is the software configuration schematic diagram of load balancing adjuster of the present invention.
In figure: 1, plant-grid connection case, 10, load balancing adjuster, 2, charging pile, 21, charging module, 3, CAN bus,
41, supply lines, 42, power supply line.
Specific embodiment
In order to further appreciate that feature of the invention, technological means and specific purposes achieved, function, tie below
It closes attached drawing and the present invention is described in further detail in specific embodiment.
A kind of electric automobile charging station internal loading propertional regulator, including one-chip computer hardware system element group.It is described
One-chip computer hardware system element group is embedded with load balancing algorithms, and one-chip computer hardware system element group is installed on charging
In the plant-grid connection case 1 stood, the alternating-current power supply that specification is 220V50Hz, the one-chip computer are obtained by plant-grid connection case 1
CAN bus 3 is connected to the charging module 20 of each charging pile 2 in charging station in the charged station of hardware system element group.
Preferably, further including CAN bus level converter, CAN interface element group, the one-chip computer hardware
System element group is successively connect through CAN bus level converter, CAN interface element group with CAN bus 3 in charging station.CAN
Bus level converter is the major part that CAN bus 3 communicates, and function is patrolling one-chip computer hardware system element group
Volume level conversion is the logic level that CAN bus 3 requires, and realize internal logic circuit and outer logic circuit it is electrical every
From.CAN interface is bus hardware interface plug connector, realizes that external circuit bus quickly connects.
Preferably, the one-chip computer hardware system element group is also connected with debugging keyboard and debugging display
Device.Debugging keyboard and debugging display are convenient in initial installation or subsequent maintenance to one-chip computer hardware system element
Group carries out input and visualization display, improves the efficiency of debugging.
Specifically, the one-chip computer hardware system element group uses dominant frequency in 16 single-chip microcontrollers of 40MHz or more.This
One-chip computer hardware system element group used in load balancing adjuster is the core of hardware, realizes storage, logical operation
And control action, 16 single-chip microcontrollers using the dominant frequency under current technical status in 40MHz or more can be met the requirements.
In conjunction with preference, illustrate the course of work of the present invention:
Plant-grid connection case 1 obtains power supply by supply lines 41, load balancing adjuster 10 be installed in plant-grid connection case 1 and by
The alternating-current power supply of the acquisition of plant-grid connection case 1 220V50Hz.Load balancing adjuster 10 includes one-chip computer hardware system member
Part group, CAN bus level converter, CAN interface element group.The one-chip computer hardware system element group is embedded with negative
Lotus equalization algorithm.One-chip computer hardware system element group used in this load balancing adjuster is the core of hardware, is realized
Storage, logical operation and control action, 16 single-chip microcontrollers using the dominant frequency under current technical status in 40MHz or more can
It meets the requirements.The one-chip computer hardware system element group is successively through CAN bus level converter, CAN interface element
Group is connect with CAN bus in charging station.CAN bus, which is connected in charging station, in the charged station of load balancing adjuster 10 respectively charges
The charging module of stake.
The present apparatus enters self-check program, this dress after self-test terminates after one-chip computer hardware system element group electrification reset
It sets and carries out communicating response by CAN bus 3 with the charging module 20 of all charging piles 2, communication response enters load after completing
Equalization algorithm.Each charging pile 2 obtains power by plant-grid connection case 1 by power supply line 42.
When the charging pile in charging station occupies number n less than charging pile sum N in charging station in real time, then one-chip computer is hard
The upper limit of the power that part system element group controlled and distributed to the charging pile in each use is P=P0/n, and wherein P0 is charging station
Total upper limit of the power.
It is equal to charging pile sum N in charging station when the charging pile in charging station occupies number n in real time, then one-chip computer hardware
The upper limit of the power that system element group controlled and distributed to the charging pile in each use is P=(P0-P1)/(n-1), and wherein P1 is
The real time charging power of the vehicle of our station charging is reached at first, namely preferentially ensures that the vehicle reached at first is fully charged at first.To
After having vehicle to leave, the charging pile in charging station occupies number n again less than charging pile sum N in charging station in real time, then monolithic meter
Calculation machine hardware system element group controls and distributes to the upper limit of the power of the charging pile in each use is adjusted to P=P0/n again,
The vehicle reached at first is fully charged leave charging pile after, charging capacity is allowed to be released to other charging piles, does not improve total
Reasonable distribution has been carried out to the power on charging peak and idle while power.
Compared with prior art, the beneficial effects of the present invention are: the present invention utilizes the monolithic for being embedded with load balancing algorithms
Computer hardware system element group monitors the occupied information of charging pile by CAN bus, and controls charging pile by CAN bus
The upper limit of the power.The power on charging peak and idle is closed under the premise of total upper limit of the power does not rise to control cost
Reason distribution had both taken into account all charging piles while the demand of charging in charging station, and had in turn ensured that the vehicle reached at first filled at first
Full electricity, and after its is fully charged, charging capacity is released to other charging piles.
Claims (4)
1. a kind of electric automobile charging station internal loading propertional regulator, including one-chip computer hardware system element group, feature
It is:
The one-chip computer hardware system element group is embedded with load balancing algorithms；
The one-chip computer hardware system element group is installed in the plant-grid connection case of charging station, is advised by plant-grid connection case
Lattice are the alternating-current power supply of 220V50Hz；
CAN bus is connected to the charging of each charging pile in charging station in the charged station of one-chip computer hardware system element group
Module, one-chip computer hardware system element group can distribute the upper limit of the power of each charging pile；
It is less than when one-chip computer hardware system element group by CAN bus monitors the charging pile in charging station and occupies number in real time
In charging station when charging pile sum, then the total upper limit of the power of charging station is averagely allocated to by one-chip computer hardware system element group
Charging pile in each use；
It is equal to when one-chip computer hardware system element group by CAN bus monitors the charging pile in charging station and occupies number in real time
In charging station when charging pile sum, then one-chip computer hardware system element group opens the total upper limit of the power deduction of charging station at first
The charging pile being averagely allocated to again after the power of the charging pile of beginning charging in other each uses.
2. a kind of electric automobile charging station internal loading propertional regulator as described in claim 1, it is characterised in that:
It further include CAN bus level converter, CAN interface element group；
The one-chip computer hardware system element group successively through CAN bus level converter, CAN interface element group and is filled
CAN bus connects in power station.
3. a kind of electric automobile charging station internal loading propertional regulator as described in claim 1, it is characterised in that: the monolithic
Computer hardware system element group is also connected with debugging keyboard and debugging display.
4. a kind of electric automobile charging station internal loading propertional regulator as described in claim 1, it is characterised in that: the monolithic
Computer hardware system element group uses dominant frequency in 16 single-chip microcontrollers of 40MHz or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910044880.5A CN109861322A (en) | 2019-01-17 | 2019-01-17 | A kind of electric automobile charging station internal loading propertional regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910044880.5A CN109861322A (en) | 2019-01-17 | 2019-01-17 | A kind of electric automobile charging station internal loading propertional regulator |
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| Publication Number | Publication Date |
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| CN109861322A true CN109861322A (en) | 2019-06-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112208377A (en) * | 2020-09-30 | 2021-01-12 | 重庆长安新能源汽车科技有限公司 | Household alternating current charging pile, system and charging method |
| CN112448562A (en) * | 2019-08-30 | 2021-03-05 | 比亚迪股份有限公司 | DC-DC converter and control method thereof |
| CN112440806A (en) * | 2020-11-23 | 2021-03-05 | 南方电网调峰调频发电有限公司 | Power control method and device for charging pile, computer equipment and storage medium |
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| CN112448562A (en) * | 2019-08-30 | 2021-03-05 | 比亚迪股份有限公司 | DC-DC converter and control method thereof |
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| CN112208377A (en) * | 2020-09-30 | 2021-01-12 | 重庆长安新能源汽车科技有限公司 | Household alternating current charging pile, system and charging method |
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| CN112440806A (en) * | 2020-11-23 | 2021-03-05 | 南方电网调峰调频发电有限公司 | Power control method and device for charging pile, computer equipment and storage medium |
| CN112440806B (en) * | 2020-11-23 | 2022-08-09 | 南方电网调峰调频发电有限公司 | Power control method and device for charging pile, computer equipment and storage medium |
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Application publication date: 20190607 |