CN113246781A - Charging pile power dynamic distribution output method - Google Patents
Charging pile power dynamic distribution output method Download PDFInfo
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- CN113246781A CN113246781A CN202110556577.0A CN202110556577A CN113246781A CN 113246781 A CN113246781 A CN 113246781A CN 202110556577 A CN202110556577 A CN 202110556577A CN 113246781 A CN113246781 A CN 113246781A
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- 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
- B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a dynamic power distribution and output method for a charging pile, which belongs to the technical field of charging piles and comprises the following steps: step S10, the charging pile control unit distributes power modules for the charging guns based on the power addresses and respectively creates linked lists for the charging guns; step S20, the charging pile control unit acquires power supply parameters of the power supply module, updates the power supply parameters into a linked list, sorts the power supply parameters, and sets configuration information of a charging gun; step S30, the charging pile control unit acquires the required power of the electric automobile in real time through the charging gun; step S40, the charging pile control unit sets the output power of the charging gun based on the required power, the linked list and the configuration information, and further charges the electric vehicle; and step S50, the charging pile control unit monitors the required power in real time and dynamically adjusts the power output of the charging gun. The invention has the advantages that: very big promotion the rationality of power distribution, and then very big extension fill electric pile's life, very big promotion the security.
Description
Technical Field
The invention relates to the technical field of charging piles, in particular to a dynamic power distribution and output method for a charging pile.
Background
Along with electric automobile's rapid development, satisfy electric automobile charging demand's electric pile that fills also more and more. Charging pile is used as an infrastructure for charging electric vehicles, and the number of times of use is increasing. Fill and to set up a plurality of power module usually in the electric pile, start different power module according to the actual demand of charging of electric automobile to reach the purpose of filling electric pile self power distribution.
For power distribution of charging piles, there are conventionally two methods:
the method comprises the steps of numbering all power modules of the charging pile according to the size sequence, and then starting external charging according to the numbering sequence when the charging pile is used for external charging every time. However, since the power modules are started according to the numbering sequence at each time, the power modules with the numbers being close to the front or the back are frequently started, so that the use times of the power modules in the same charging pile are uneven, the failure rate of the power modules which are frequently started is increased, the service life of the power modules is shortened, and potential safety hazards exist.
The second method is that all power modules of the charging pile are started in a random mode, namely each charging module is possibly started when the charging pile is used for charging to the outside each time; however, the method only realizes relatively average use probability of each power module, and finally leads to poor power distribution effect of the charging pile and shortens the service life of the power modules.
Therefore, how to provide a charging pile power dynamic distribution output method realizes the rationality of improving power distribution, further prolongs the service life of the charging pile, improves safety, and becomes a problem to be solved urgently.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a charging pile power dynamic distribution output method, so that the rationality of power distribution is improved, the service life of the charging pile is prolonged, and the safety is improved.
The invention is realized by the following steps: a charging pile power dynamic distribution output method comprises the following steps:
step S10, the charging pile control unit distributes power modules for the charging guns based on the power addresses, and a linked list is respectively established for the charging guns;
step S20, the charging pile control unit acquires power supply parameters of each power supply module, updates the power supply parameters into a linked list, sorts the power supply parameters, and sets configuration information of each charging gun;
step S30, after the charging gun is connected with the electric automobile, the charging pile control unit obtains the required power of the electric automobile in real time through the charging gun;
step S40, the charging pile control unit sets the output power of the charging gun based on the required power, the linked list and the configuration information, and further charges the electric automobile;
and step S50, the charging pile control unit monitors the required power in real time and dynamically adjusts the power output of the charging gun.
Further, in step S10, the power source address is a unique number of the power source module.
Further, in step S10, the linked list at least includes the following fields:
the power supply module comprises a power supply sequence number, a charging gun number, a power supply address, accumulated running time, accumulated output power, rated power of the power supply module, output voltage of the power supply module, a power supply state, a power supply address of a previous power supply module and a power supply address of a next power supply module.
Further, the value of the power state is normal or abnormal, and the default value is normal.
Further, the step S10 further includes: and the charging pile control unit counts the number of available power supply modules and the number of unavailable power supply modules based on the power supply state.
Further, the step S20 specifically includes:
step S21, the charging pile control unit acquires power supply parameters of each power supply module, including power supply address, accumulated running time, accumulated output power, rated power of the power supply module and output voltage of the power supply module;
step S22, updating the power supply parameters into a linked list, and updating the power supply address of the previous power supply module and the power supply address field of the next power supply module in the linked list after sequencing the power supply parameters based on the accumulated running time or the accumulated output power;
step S23, setting configuration information including an output power range and an output voltage range for each charging gun.
Further, the step S40 specifically includes:
step S41, the charging pile control unit polls the power supply address of the linked list, judges whether a power supply module corresponding to the power supply address exists, if so, the charging pile control unit enters step S42; if not, setting the power state corresponding to the power address as abnormal, and proceeding to step S42;
step S42, the charging pile control unit judges whether the power module with normal power address has fault according to the sequence of the power serial number, if not, the charging pile control unit enters step S43; if yes, setting the power state corresponding to the power serial number as abnormal, and proceeding to step S43;
step S43, the charging pile control unit screens out power modules with normal power states from the linked list, sequentially finds out the power modules meeting the required power according to the power module with the minimum accumulated running time or the minimum accumulated output power as an opening end, accumulates the rated power of the power modules to obtain total rated power, and accumulates the output voltage of the power modules to obtain total output voltage;
step S44, the charging pile control unit judges whether the total rated power is within the output power range, if so, the step S45 is executed; if not, reducing the power supply modules by taking 1 power supply module as a gradient in a reverse order until the total rated power meets the output power range, and entering the step S45;
step S45, the charging pile control unit judges whether the total output voltage is in the output voltage range, if yes, the step S46 is executed; if not, reducing the power supply modules by taking 1 power supply module as a gradient in a reverse order until the total output voltage meets the output voltage range, and entering the step S46;
and step S46, the charging pile control unit controls the charging gun to charge the electric automobile with the total rated power.
Further, the step S50 specifically includes:
step S51, the charging pile control unit monitors the required power in real time, and when the required power is increased, the step S52 is carried out; when the required power becomes small, proceed to step S53;
step S52, judging whether all power modules output power currently, if so, keeping the original total rated power for output; if not, accumulating the power modules in sequence until the required power is met;
and step S53, calculating a proportionality coefficient between the current required power and the previous required power, and adjusting the output power of each power supply module to be the proportionality coefficient multiplied by the rated power of the power supply module.
Further, still include:
and step S60, the charging pile control unit updates the accumulated running time and the accumulated output power of each power supply module in the chain table in real time.
The invention has the advantages that:
each power module includes the power address through establishing the linked list record, accumulative operation time, accumulative output power, power module rated power and power module output voltage's power parameter, and arrange each power module in an order based on accumulative operation time or accumulative output power, when charging for electric automobile, it is shorter to utilize the linked list preferred selection accumulative operation time, or accumulative output power is less power module carries out power output, avoid each power module number of use inequality, and then promote the rationality of power distribution, power module's fault rate has been reduced, very big extension fills the life of the power module of electric pile, very big promotion fills the security of electric pile.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a flowchart of a charging pile power dynamic allocation output method according to the present invention.
Detailed Description
The technical scheme in the embodiment of the application has the following general idea: the accumulated operation time, the accumulated output power and the power supply state of each power supply module are recorded through the linked list, the power supply modules with normal power supply states are screened out when the electric automobile is charged, sorting is carried out based on the accumulated operation time or the accumulated output power, and the power supply module which meets the electric automobile demand power and has the shortest accumulated operation time or the smallest accumulated output power is found out for power output, so that the reasonability of power distribution is improved.
Referring to fig. 1, a preferred embodiment of a method for dynamically allocating and outputting power of a charging pile according to the present invention includes the following steps:
step S10, the charging pile control unit distributes power modules for the charging guns based on the power addresses, and a linked list is respectively established for the charging guns; the linked list is used for recording power supply parameters of the power supply modules, sequencing the power supply modules according to accumulated running time or accumulated output power, and selecting the power supply module which meets the shortest accumulated running time or the lowest accumulated output power of the power demand of the electric vehicle for power output, so that the reasonability of power distribution is improved;
step S20, the charging pile control unit acquires power supply parameters of each power supply module, updates the power supply parameters into a linked list, sorts the power supply parameters, and sets configuration information of each charging gun;
step S30, after the charging gun is connected with the electric automobile, the charging pile control unit obtains the required power of the electric automobile in real time through the charging gun;
step S40, the charging pile control unit sets the output power of the charging gun based on the required power, the linked list and the configuration information, and further charges the electric automobile;
and step S50, the charging pile control unit monitors the required power in real time and dynamically adjusts the power output of the charging gun.
In step S10, the power source address is a unique number of the power source module.
In step S10, the linked list at least includes the following fields:
the power supply module comprises a power supply sequence number, a charging gun number, a power supply address, accumulated running time, accumulated output power, rated power of the power supply module, output voltage of the power supply module, a power supply state, a power supply address of a previous power supply module and a power supply address of a next power supply module.
The power state is normal or abnormal, and the default value is normal.
The step S10 further includes: the charging pile control unit counts the number of available power supply modules and the number of unavailable power supply modules based on the power supply state, so that maintenance personnel can visually judge which charging pile needs to be maintained urgently, and when a failed power supply module is replaced, the accumulated running time and the accumulated output power of the corresponding power supply address are reset.
The step S20 specifically includes:
step S21, the charging pile control unit acquires power supply parameters of each power supply module, including power supply address, accumulated running time, accumulated output power, rated power of the power supply module and output voltage of the power supply module;
step S22, updating the power supply parameters to a linked list, sorting the power supply parameters (namely sorting the power supply modules) based on the accumulated running time or the accumulated output power, and updating the power supply address of the previous power supply module and the power supply address of the next power supply module in the linked list so as to conveniently search the power supply modules in sequence;
step S23, setting configuration information of each charging gun including an output power range and an output voltage range; the output power range is the output power range accumulated by all power supply modules associated with the charging gun, and the output voltage range is the output voltage range accumulated by all power supply modules associated with the charging gun.
The step S40 specifically includes:
step S41, the charging pile control unit polls the power supply address of the linked list, judges whether a power supply module corresponding to the power supply address exists, if so, the charging pile control unit enters step S42; if not, setting the power state corresponding to the power address as abnormal, and proceeding to step S42;
step S42, the charging pile control unit judges whether the power module with normal power address has fault according to the sequence of the power serial number, if not, the charging pile control unit enters step S43; if yes, setting the power state corresponding to the power serial number as abnormal, and proceeding to step S43;
step S43, the charging pile control unit screens out power modules with normal power states from the linked list, sequentially finds out the power modules meeting the required power according to the power module with the minimum accumulated running time or the minimum accumulated output power as an opening end, accumulates the rated power of the power modules to obtain total rated power, and accumulates the output voltage of the power modules to obtain total output voltage;
for example, sorting is carried out according to the accumulated running time, the power supply serial number of the power supply module with the shortest accumulated running time is Y1, and the power supply serial number of the power supply module with the longest accumulated running time is YN; firstly, judging whether the rated power of the power module of Y1 meets the required power, if so, the rated power of the power module of Y1 is the total rated power, if not, judging whether the rated power of the power module of Y1+ Y2 meets the required power, and so on; and if the power module rated power summed up by all the power modules does not meet the required power, taking the power module rated power summed up by all the power modules as the total rated power.
Step S44, the charging pile control unit judges whether the total rated power is within the output power range, if so, the step S45 is executed; if not, reducing the power supply modules by taking 1 power supply module as a gradient in a reverse order until the total rated power meets the output power range, and entering the step S45;
for example, four power modules of Y1, Y2, Y3, and Y4 are selected originally, and when the output power range is not satisfied, it is determined whether three power modules of Y1, Y2, and Y3 are satisfied, and if not, it is determined whether two power modules of Y1 and Y2 are satisfied, and so on.
Step S45, the charging pile control unit judges whether the total output voltage is in the output voltage range, if yes, the step S46 is executed; if not, reducing the power supply modules by taking 1 power supply module as a gradient in a reverse order until the total output voltage meets the output voltage range, and entering the step S46;
and step S46, the charging pile control unit controls the charging gun to charge the electric automobile with the total rated power.
The step S50 specifically includes:
step S51, the charging pile control unit monitors the required power in real time, and when the required power is increased, the step S52 is carried out; when the required power becomes small, proceed to step S53;
step S52, judging whether all power modules output power currently, if so, keeping the original total rated power for output; if not, accumulating the power modules in sequence until the required power is met; i.e. in order of accumulated running time or accumulated output power;
and step S53, calculating a proportionality coefficient between the current required power and the previous required power, and adjusting the output power of each power supply module to be the proportionality coefficient multiplied by the rated power of the power supply module.
Further comprising:
and step S60, the charging pile control unit updates the accumulated running time and the accumulated output power of each power supply module in the chain table in real time.
In summary, the invention has the advantages that:
each power module includes the power address through establishing the linked list record, accumulative operation time, accumulative output power, power module rated power and power module output voltage's power parameter, and arrange each power module in an order based on accumulative operation time or accumulative output power, when charging for electric automobile, it is shorter to utilize the linked list preferred selection accumulative operation time, or accumulative output power is less power module carries out power output, avoid each power module number of use inequality, and then promote the rationality of power distribution, power module's fault rate has been reduced, very big extension fills the life of the power module of electric pile, very big promotion fills the security of electric pile.
Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.
Claims (9)
1. A charging pile power dynamic distribution output method is characterized in that: the method comprises the following steps:
step S10, the charging pile control unit distributes power modules for the charging guns based on the power addresses, and a linked list is respectively established for the charging guns;
step S20, the charging pile control unit acquires power supply parameters of each power supply module, updates the power supply parameters into a linked list, sorts the power supply parameters, and sets configuration information of each charging gun;
step S30, after the charging gun is connected with the electric automobile, the charging pile control unit obtains the required power of the electric automobile in real time through the charging gun;
step S40, the charging pile control unit sets the output power of the charging gun based on the required power, the linked list and the configuration information, and further charges the electric automobile;
and step S50, the charging pile control unit monitors the required power in real time and dynamically adjusts the power output of the charging gun.
2. The method according to claim 1, wherein the method further comprises the following steps: in step S10, the power source address is a unique number of the power source module.
3. The method according to claim 1, wherein the method further comprises the following steps: in step S10, the linked list at least includes the following fields:
the power supply module comprises a power supply sequence number, a charging gun number, a power supply address, accumulated running time, accumulated output power, rated power of the power supply module, output voltage of the power supply module, a power supply state, a power supply address of a previous power supply module and a power supply address of a next power supply module.
4. The method according to claim 3, wherein the method further comprises the following steps: the power state is normal or abnormal, and the default value is normal.
5. The method according to claim 3, wherein the method further comprises the following steps: the step S10 further includes: and the charging pile control unit counts the number of available power supply modules and the number of unavailable power supply modules based on the power supply state.
6. The method according to claim 3, wherein the method further comprises the following steps: the step S20 specifically includes:
step S21, the charging pile control unit acquires power supply parameters of each power supply module, including power supply address, accumulated running time, accumulated output power, rated power of the power supply module and output voltage of the power supply module;
step S22, updating the power supply parameters into a linked list, and updating the power supply address of the previous power supply module and the power supply address field of the next power supply module in the linked list after sequencing the power supply parameters based on the accumulated running time or the accumulated output power;
step S23, setting configuration information including an output power range and an output voltage range for each charging gun.
7. The method according to claim 6, wherein the charging pile power dynamic allocation output method comprises: the step S40 specifically includes:
step S41, the charging pile control unit polls the power supply address of the linked list, judges whether a power supply module corresponding to the power supply address exists, if so, the charging pile control unit enters step S42; if not, setting the power state corresponding to the power address as abnormal, and proceeding to step S42;
step S42, the charging pile control unit judges whether the power module with normal power address has fault according to the sequence of the power serial number, if not, the charging pile control unit enters step S43; if yes, setting the power state corresponding to the power serial number as abnormal, and proceeding to step S43;
step S43, the charging pile control unit screens out power modules with normal power states from the linked list, sequentially finds out the power modules meeting the required power according to the power module with the minimum accumulated running time or the minimum accumulated output power as an opening end, accumulates the rated power of the power modules to obtain total rated power, and accumulates the output voltage of the power modules to obtain total output voltage;
step S44, the charging pile control unit judges whether the total rated power is within the output power range, if so, the step S45 is executed; if not, reducing the power supply modules by taking 1 power supply module as a gradient in a reverse order until the total rated power meets the output power range, and entering the step S45;
step S45, the charging pile control unit judges whether the total output voltage is in the output voltage range, if yes, the step S46 is executed; if not, reducing the power supply modules by taking 1 power supply module as a gradient in a reverse order until the total output voltage meets the output voltage range, and entering the step S46;
and step S46, the charging pile control unit controls the charging gun to charge the electric automobile with the total rated power.
8. The method according to claim 7, wherein the charging pile power dynamic allocation output method comprises: the step S50 specifically includes:
step S51, the charging pile control unit monitors the required power in real time, and when the required power is increased, the step S52 is carried out; when the required power becomes small, proceed to step S53;
step S52, judging whether all power modules output power currently, if so, keeping the original total rated power for output; if not, accumulating the power modules in sequence until the required power is met;
and step S53, calculating a proportionality coefficient between the current required power and the previous required power, and adjusting the output power of each power supply module to be the proportionality coefficient multiplied by the rated power of the power supply module.
9. The method according to claim 1, wherein the method further comprises the following steps: further comprising:
and step S60, the charging pile control unit updates the accumulated running time and the accumulated output power of each power supply module in the chain table in real time.
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