CN114211996A - Multichannel distributing type electric automobile alternating current charging system - Google Patents

Multichannel distributing type electric automobile alternating current charging system Download PDF

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Publication number
CN114211996A
CN114211996A CN202111554539.8A CN202111554539A CN114211996A CN 114211996 A CN114211996 A CN 114211996A CN 202111554539 A CN202111554539 A CN 202111554539A CN 114211996 A CN114211996 A CN 114211996A
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charging
alternating
piles
current charging
current
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李栋
何力
李斌
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Shandong Zhijiechong Technology Co ltd
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Shandong Zhijiechong Technology Co ltd
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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
    • B60L53/68—Off-site monitoring or control, e.g. remote control
    • 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
    • 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
    • B60L53/66—Data transfer between charging stations and vehicles
    • 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
    • B60L2260/00—Operating Modes
    • B60L2260/40—Control modes
    • B60L2260/44—Control modes by parameter estimation
    • 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
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • 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
    • Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/12—Remote or cooperative charging

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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 discloses a multi-path distributed alternating current charging system for an electric vehicle, which belongs to the field of electric vehicles and is used for solving the problems that the alternating current charging system cannot arrange charging requirements in order, optimally adjust charging piles according to actual charging conditions and actual use conditions and does not have charging fault self-detection, and comprises a charging sequencing module, a distribution optimization module, a charging monitoring module and a fault judgment module, wherein the charging sequencing module is used for sequencing charging requests, the distribution optimization module is used for optimizing the distribution of alternating current charging piles, the charging monitoring module is used for monitoring the charging of the alternating current charging piles in a distribution area, and the fault judgment module is used for judging the charging conditions of the alternating current charging piles in the charging states, and carrying out fault self-detection in the charging process.

Description

Multichannel distributing type electric automobile alternating current charging system
Technical Field
The invention belongs to the field of electric automobiles, relates to an alternating current charging technology, and particularly relates to a multi-path distributed alternating current charging system for an electric automobile.
Background
The electric automobile is a vehicle which takes a vehicle-mounted power supply as power and drives wheels to run by using a motor, and meets various requirements of road traffic and safety regulations. The electric automobile is taken as an outstanding representative of new energy development, and becomes an important development direction for replacing the traditional power automobile and leading a new era of the automobile industry by virtue of the advantages of no pollution, low noise, convenient maintenance and the like. The alternating-current charging pile provides an alternating-current charging power supply for the electric passenger vehicle with the vehicle-mounted charger, and is an important matched infrastructure necessary for the development of the electric automobile. The alternating-current charging pile is generally built on a charging station, a parking lot and a roadside and has the characteristics of small single-machine power, low cost, small occupied area and the like.
In the prior art, the current alternating current charging system for the electric automobile cannot orderly arrange the charging requirements of users, and cannot optimally adjust the charging pile according to the actual charging condition and the actual using condition; moreover, most alternating current charging piles are not provided with a fault self-checking function, and still continue to be charged when a fault occurs, so that potential safety hazards are easily caused.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a multi-path distributed alternating-current charging system for an electric automobile.
The technical problem to be solved by the invention is as follows:
(1) how to orderly arrange the charging requirements of users by an alternating current charging system of the electric automobile and how to optimally adjust a charging pile according to the actual charging condition and the actual using condition;
(2) how the electric automobile alternating current charging system carries out charging fault self-checking, thereby avoiding causing potential safety hazard.
The purpose of the invention can be realized by the following technical scheme:
a multi-path distributed alternating-current charging system for an electric automobile comprises a data acquisition module, a user terminal, a charging sequencing module, a distribution optimization module, a charging monitoring module, a fault judgment module and a server, wherein the user terminal is used for a user to send a charging request and send the charging request to the charging sequencing module through the server; the data acquisition module is used for acquiring operation data, charging data and user data of a charging request of the alternating-current charging pile and sending the operation data, the charging data and the user data to the server, the server sends the user data to the charging sorting module, the charging sorting module is used for sorting the charging request to obtain a charging sorting table and feeding the charging sorting table back to the server, and the server processes the charging request sent by the user terminal according to the charging sorting table;
the distribution optimization module is used for optimizing the distribution of the alternating-current charging piles, generating normal distribution signals or optimized distribution signals and feeding the normal distribution signals or optimized distribution signals back to the server, if the server receives the normal distribution signals, no operation is performed, and if the server receives the optimized distribution signals, the distribution optimization is performed on the alternating-current charging piles in the corresponding distribution area;
the charging monitoring module is used for charging and monitoring the alternating-current charging piles in the distribution area, monitoring to obtain a temperature value WCiot of the alternating-current charging piles at a time point and an average rate JWSCio of temperature change of the alternating-current charging piles in charging duration and sending the temperature value WCiot of the alternating-current charging piles at the time point and the average rate JWSCio of temperature change of the alternating-current charging piles in the charging duration to the server, the server sends the temperature value WCiot of the alternating-current charging piles at the time point and the average rate JWSCio of temperature change of the alternating-current charging piles in the charging duration to the fault judging module, the fault judging module is used for carrying out fault judgment on charging conditions of the alternating-current charging piles in the charging state to generate charging fault signals or charging normal signals to be fed back to the server, the server sends the charging fault signals to corresponding user terminals, and the user terminals are used for replacing the alternating-current charging piles to charge the electric automobile.
Further, the operation data is a real-time temperature value of the alternating current charging pile;
the charging data comprises the number, charging times, charging rate and charging duration of the alternating-current charging piles;
the user data comprises the charging times, the charging time, the generation time of the charging request and the user grade of the user terminal corresponding to the charging request of the user.
Further, the sorting process of the charging sorting module is specifically as follows:
the method comprises the following steps: marking the charging request as u, u is 1, 2, … …, z, z is a positive integer; acquiring a user level of a user terminal corresponding to the charging request, and recording a level value of the user level as DJu;
step two: acquiring the charging times of the user terminal corresponding to the charging request, and marking the charging times as CCu; acquiring the charging time length of each charging, adding the charging time lengths of each charging and averaging to obtain a charging average time JCTu;
step three: combination formula
Figure BDA0003418720880000031
Calculating to obtain a user value YHu of the user terminal corresponding to the charging request; in the formula, a1, a2 and a3 are all proportionality coefficients with fixed numerical values, and the values of a1, a2 and a3 are all larger than zero;
step four: acquiring the generation time of the charging request, and subtracting the generation time from the current time of the server to obtain the generation duration STu of the charging request;
step five: substituting the generation time length Stu of the charging request and the user value YHu of the corresponding user terminal into a calculation formula PXu ═ StuYHuCalculating the x alpha to obtain an ordering value PXu of the charging request; in the formula, alpha is an error compensation coefficient of a fixed numerical value, and the value of alpha is more than 1;
step six: and (4) obtaining a charging sorting table by descending sorting according to the numerical value of the sorting value.
Further, the higher the user level is, the larger the level value corresponding to the user level is.
Further, the optimization process of the distribution optimization module specifically includes:
step S1: dividing the area where the alternating-current charging pile is located to obtain a distribution area i of the alternating-current charging pile, wherein i is 1, 2, … …, and x is a positive integer;
step S2: acquiring the quantity of the alternating current charging piles in each distribution area, and recording the quantity as the total quantity CZSI of the charging piles in the distribution area;
step S3: counting the charging times of each alternating-current charging pile in the distribution area, summing the charging times of each alternating-current charging pile to obtain the total charging times of the alternating-current charging piles in the distribution area, and dividing the total charging times by the number of the charging piles to obtain the average charging times of the alternating-current charging piles in the distribution area;
step S4: the average charging times are compared in a traversing mode, the charging times of each alternating-current charging pile are obtained, the alternating-current charging piles with the charging times larger than or equal to the average charging times are obtained and recorded as the effective charging piles of the distribution area, and the effective utilization rates YSLi of the alternating-current charging piles in the distribution area are obtained by comparing the number of the effective charging piles with the number of the charging piles;
step S5: similarly, the charging time of each alternating-current charging pile in the distribution area is counted, the charging time of each alternating-current charging pile is added and summed to obtain the total charging time of the alternating-current charging piles in the distribution area, and the total charging time is divided by the number of the charging piles to obtain the average charging time of the alternating-current charging piles in the distribution area;
the average charging time length is compared with the charging time length of each alternating-current charging pile in a traversing mode, the charging time length is obtained, the alternating-current charging piles larger than or equal to the average charging time length are obtained and recorded as effective time length charging piles in a distribution area, and the effective charging rate YCLi of the alternating-current charging piles in the distribution area is obtained by comparing the number of the effective time length charging piles with the number of the charging piles;
step S6: combination formula
Figure BDA0003418720880000041
Calculating to obtain the effective charging pile number YXi of the alternating current charging piles in the distribution area;
step S7: calculating the difference value between the effective charging pile number YXi and the total number CZSI of the charging piles to obtain the number difference of the alternating current charging piles in the distribution area;
if the quantity difference of the alternating current charging piles in the distribution area does not exceed the preset range, generating a normal distribution signal;
and if the quantity difference of the alternating current charging piles in the distribution area exceeds a preset range, generating a distribution optimization signal.
Further, the monitoring steps of the charging monitoring module are as follows:
step SS 1: marking the alternating current charging piles as Cio, wherein o is 1, 2, … …, v and v are positive integers, and o represents the serial numbers of the alternating current charging piles in the distribution area;
step SS 2: if the alternating-current charging pile is in a charging state, acquiring the charging time of the alternating-current charging pile, and entering the next step;
if the alternating current charging pile is not in a charging state, no operation is performed;
step SS 3: setting a time point at any time in the charging duration, and acquiring a temperature value WCiot of the alternating-current charging pile at the corresponding time point, wherein t is 1, 2, … …, n and n are positive integers, and t represents a serial number of the time point;
step SS 4: acquiring a time difference value of two adjacent time points and a temperature difference value of the alternating current charging pile at the two adjacent time points, and dividing the temperature difference value by the time difference value to obtain a temperature change rate between the two adjacent time points;
step SS 5: and adding the temperature change rates between two adjacent time points and summing the number of the time periods to obtain the average temperature change rate JWSCio of the alternating-current charging pile in the charging time.
Further, the working process of the fault determination module is specifically as follows:
step P1: acquiring a temperature threshold and a temperature change rate threshold of an alternating current charging pile in a distribution area;
step P2: comparing the temperature value of the alternating-current charging pile in the distribution area at the time point with a temperature threshold value, and comparing the average temperature change rate of the alternating-current charging pile in the distribution area within the charging time with the temperature change rate threshold value;
step P3: if the temperature value at any time point is greater than or equal to the temperature threshold value, generating a charging fault signal, otherwise, generating a charging normal signal;
step P4: and if the average rate of temperature change in the charging time is greater than or equal to the temperature threshold, generating a charging fault signal, otherwise, generating a charging normal signal.
Compared with the prior art, the invention has the beneficial effects that:
1. the charging request is sequenced through the charging sequencing module, the user value of the user terminal corresponding to the charging request is obtained according to the rank value, the charging times and the charging uniformity, the sequencing value of the charging request is obtained according to the generation duration of the charging request, the charging sequencing table is obtained by sequencing according to the numerical value of the sequencing value in a descending order mode, the charging sequencing module feeds the charging sequencing table back to the server, and the server processes the charging request sent by the user terminal according to the charging sequencing table;
2. according to the distribution optimization method, the distribution of the alternating-current charging piles is optimized through a distribution optimization module, the effective utilization rate and the effective charging rate of the alternating-current charging piles in a distribution area are obtained, the effective charging pile number of the alternating-current charging piles in the distribution area is obtained, the difference value between the effective charging pile number and the total number of the charging piles is calculated to obtain the quantity difference of the alternating-current charging piles in the distribution area, and a distribution normal signal or a distribution optimization signal is generated after the quantity difference ratio of the alternating-current charging piles is within a preset range;
3. the charging monitoring module is used for charging and monitoring the alternating-current charging piles in the distribution area to obtain the temperature value of the alternating-current charging piles at each time point and the average rate of temperature change of the alternating-current charging piles in the charging time, then the fault judgment module is combined to carry out fault judgment on the charging condition of the alternating-current charging piles in the charging state, the temperature value at each time point is compared with the temperature threshold, the average rate of temperature change in the charging time is compared with the temperature change rate threshold, and a charging fault signal or a charging normal signal is generated by comparison.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is an overall system block diagram of the present invention;
FIG. 2 is a block diagram of another system of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a multi-path distributed alternating-current charging system for an electric vehicle includes a data acquisition module, a user terminal, a charging sorting module, a distribution optimization module, a charging monitoring module, a fault determination module, and a server;
the user terminal is used for registering a login system after a user inputs personal information, and sending the personal information to the server for storage, wherein the personal information comprises the name of the user, the mobile phone number of real-name authentication and the like;
the user terminal is used for sending a charging request to a user and sending the charging request to the charging sequencing module through the server; the data acquisition module is used for acquiring operation data, charging data and user data of a charging request of the alternating-current charging pile and sending the operation data, the charging data and the user data to the server, and the data acquisition module is not limited to the alternating-current charging pile and can be other alternating-current charging equipment during specific implementation and is not used here;
the operation data is a real-time temperature value of the alternating-current charging pile, the charging data is the number, the charging times, the charging rate and the charging time of the alternating-current charging pile, and the user data comprises the charging times, the charging time, the generation time of a charging request, the user grade of a user terminal corresponding to the charging request and the like of a user;
the server sends the user data to a charging sequencing module, the charging sequencing module is used for sequencing charging requests, and the sequencing process specifically comprises the following steps:
the method comprises the following steps: marking the charging request as u, u is 1, 2, … …, z, z is a positive integer; acquiring a user level of a user terminal corresponding to the charging request, and recording a level value of the user level as DJu;
specifically, the higher the user level is, the larger the level value corresponding to the user level is;
step two: acquiring the charging times of the user terminal corresponding to the charging request, and marking the charging times as CCu; acquiring the charging time length of each charging, adding the charging time lengths of each charging and averaging to obtain a charging average time JCTu;
step three: combination formula
Figure BDA0003418720880000071
Calculating to obtain a user value YHu of the user terminal corresponding to the charging request; in the formula, a1, a2 and a3 are all proportionality coefficients with fixed numerical values, and the values of a1, a2 and a3 are all larger than zero;
step four: acquiring the generation time of the charging request, and subtracting the generation time from the current time of the server to obtain the generation duration STu of the charging request;
step five: substituting the generation time length Stu of the charging request and the user value YHu of the corresponding user terminal into a calculation formula PXu ═ StuYHuCalculating the x alpha to obtain an ordering value PXu of the charging request; in the formula, alpha is an error compensation coefficient of a fixed numerical value, and the value of alpha is more than 1;
step six: arranging according to the numerical value of the sequencing value in a descending order to obtain a charging sequencing table;
the charging sorting module feeds back the charging sorting table to the server, and the server processes the charging request sent by the user terminal according to the charging sorting table;
in specific implementation, the ac charging piles in the system can be applied to specific places, such as a community, a public charging parking lot and the like, the distribution optimization module is used for optimizing the distribution of the ac charging piles, and the optimization process specifically comprises the following steps:
step S1: the area where the alternating-current charging pile is located is divided, the division rule can be divided into an A parking area, a B parking area and the like according to a specific boundary line, such as the area boundary line of a parking lot, a cell can be divided according to the term number, and the distribution area i of the alternating-current charging pile is obtained through division, wherein i is 1, 2, … …, and x is a positive integer;
step S2: acquiring the quantity of the alternating current charging piles in each distribution area, and recording the quantity as the total quantity CZSI of the charging piles in the distribution area;
step S3: counting the charging times of each alternating-current charging pile in the distribution area, summing the charging times of each alternating-current charging pile to obtain the total charging times of the alternating-current charging piles in the distribution area, and dividing the total charging times by the number of the charging piles to obtain the average charging times of the alternating-current charging piles in the distribution area;
step S4: the average charging times are compared in a traversing mode, the charging times of each alternating-current charging pile are obtained, the alternating-current charging piles with the charging times larger than or equal to the average charging times are obtained and recorded as the effective charging piles of the distribution area, and the effective utilization rates YSLi of the alternating-current charging piles in the distribution area are obtained by comparing the number of the effective charging piles with the number of the charging piles;
step S5: similarly, the charging time of each alternating-current charging pile in the distribution area is counted, the charging time of each alternating-current charging pile is added and summed to obtain the total charging time of the alternating-current charging piles in the distribution area, and the total charging time is divided by the number of the charging piles to obtain the average charging time of the alternating-current charging piles in the distribution area;
the average charging time length is compared with the charging time length of each alternating-current charging pile in a traversing mode, the charging time length is obtained, the alternating-current charging piles larger than or equal to the average charging time length are obtained and recorded as effective time length charging piles in a distribution area, and the effective charging rate YCLi of the alternating-current charging piles in the distribution area is obtained by comparing the number of the effective time length charging piles with the number of the charging piles;
step S6: combination formula
Figure BDA0003418720880000091
Calculating to obtain the effective charging pile number YXi of the alternating current charging piles in the distribution area;
step S7: calculating the difference value between the effective charging pile number YXi and the total number CZSI of the charging piles to obtain the number difference of the alternating current charging piles in the distribution area;
if the quantity difference of the alternating current charging piles in the distribution area does not exceed the preset range, generating a normal distribution signal;
if the quantity difference of the alternating current charging piles in the distribution area exceeds a preset range, generating a distribution optimization signal;
the distribution optimization module feeds back the distribution normal signal or the distribution optimization signal to the server, if the server receives the distribution normal signal, no operation is performed, and if the server receives the distribution optimization signal, distribution optimization is performed on the alternating current charging piles in the corresponding distribution area;
simultaneously, the charging monitoring module is used for monitoring the charging of the alternating-current charging piles in the distribution area, and the monitoring steps are as follows:
step SS 1: marking the alternating current charging piles as Cio, wherein o is 1, 2, … …, v and v are positive integers, and o represents the serial numbers of the alternating current charging piles in the distribution area;
step SS 2: if the alternating-current charging pile is in a charging state, acquiring the charging time of the alternating-current charging pile, and entering the next step;
if the alternating current charging pile is not in a charging state, no operation is performed;
step SS 3: setting a time point at any time in the charging duration, and acquiring a temperature value WCiot of the alternating-current charging pile at the corresponding time point, wherein t is 1, 2, … …, n and n are positive integers, and t represents a serial number of the time point;
step SS 4: acquiring a time difference value of two adjacent time points and a temperature difference value of the alternating current charging pile at the two adjacent time points, and dividing the temperature difference value by the time difference value to obtain a temperature change rate between the two adjacent time points;
step SS 5: adding the temperature change rates between two adjacent time points and summing the number of the time periods to obtain the average temperature change rate JWSCio of the alternating current charging pile in the charging time;
the charging monitoring module sends a temperature value WCiot of the alternating-current charging pile at a time point and an average rate JWSCio of temperature change of the alternating-current charging pile in a charging time period to a server, the server sends the temperature value WCiot of the alternating-current charging pile at the time point and the average rate JWSCio of temperature change of the alternating-current charging pile in the charging time period to a fault determination module, the fault determination module is used for carrying out fault determination on the charging condition of the alternating-current charging pile in the charging state, and the working process is as follows specifically:
step P1: acquiring a temperature threshold and a temperature change rate threshold of an alternating current charging pile in a distribution area;
step P2: comparing the temperature value of the alternating-current charging pile in the distribution area at the time point with a temperature threshold value, and comparing the average temperature change rate of the alternating-current charging pile in the distribution area within the charging time with the temperature change rate threshold value;
step P3: if the temperature value at any time point is greater than or equal to the temperature threshold value, generating a charging fault signal, otherwise, generating a charging normal signal;
step P4: if the average rate of temperature change in the charging time is greater than or equal to the temperature threshold, generating a charging fault signal, otherwise, generating a charging normal signal;
the fault judgment module feeds back a charging fault signal or a charging normal signal to the server, the server sends the charging fault signal to a corresponding user terminal, and the user terminal is used for replacing an alternating-current charging pile to charge the electric automobile;
as shown in fig. 2, the system further includes a charging self-referral module, the server sends the charging data to the charging self-referral module, the charging self-referral module is used for self-recommending the alternating-current charging pile, and the working process specifically includes:
step Q1: acquiring the charging rate of the alternating current charging pile, and marking the charging rate as CSio; acquiring the charging times of the alternating current charging pile, and marking the charging times as CCio;
step Q2: acquiring the number of charging tasks of the alternating current charging pile, and recording the number of the charging tasks as CRio;
step Q3: counting the times of generating a charging fault signal by the alternating current charging pile, and recording the times as the fault times GCio;
step Q4: combination formula
Figure BDA0003418720880000111
Calculating to obtain a recommended value TJio of the alternating-current charging pile; in the formula, c1 and c2 are proportionality coefficients with fixed numerical values, the values of c1 and c2 are both larger than zero, and e is a natural constant;
step Q5: obtaining a recommendation table by descending order according to the numerical value of the recommendation value;
the charging self-recommendation module feeds back the recommendation table to the server, and the server sequentially recommends the alternating-current charging piles to the user terminals sequenced by the charging sequencing module according to the recommendation table.
A multi-path distributed electric automobile alternating current charging system comprises a user terminal, a charging sorting module, a data acquisition module, a server and a charging sorting module, wherein when the multi-path distributed electric automobile alternating current charging system works, the user terminal sends a charging request, the server sends the charging request to the charging sorting module, the data acquisition module acquires operation data, charging data and user data of an alternating current charging pile, the operation data, the charging data and the user data of the charging request are sent to the server, and the server sends the user data to the charging sorting module;
the charging requests are sorted through the charging sorting module, and a formula is combined according to the grade value DJu, the charging times CCu and the charging average time JCTu of the user terminal corresponding to the charging requests
Figure BDA0003418720880000112
Calculating to obtain a user value YHu of a user terminal corresponding to the charging request, then obtaining the generation time of the charging request, subtracting the generation time from the current time of the server to obtain a generation time length STu of the charging request, and substituting the generation time length Stu of the charging request and the user value YHu of the corresponding user terminal into a calculation formula PXu ═ StuYHuCalculating the x alpha to obtain a sequencing value PXu of the charging request, obtaining a charging sequencing table by descending sequencing according to the numerical value of the sequencing value, feeding the charging sequencing table back to the server by the charging sequencing module, and processing the charging request sent by the user terminal by the server according to the charging sequencing table;
the distribution of the alternating-current charging piles is optimized through the distribution optimization module, areas where the alternating-current charging piles are located are divided to obtain distribution areas i of the alternating-current charging piles, and then the alternating-current charging in each distribution area is obtainedCounting the number of the electric piles, recording the number as the total number CZSI of the electric piles in the distribution area, counting the charging times of each AC charging pile in the distribution area, summing the charging times of each AC charging pile to obtain the total charging times of the AC charging piles in the distribution area, dividing the total charging times by the number of the charging piles to obtain the average charging times of the AC charging piles in the distribution area, traversing and comparing the average charging times with the charging times of each AC charging pile to obtain the AC charging piles with the charging times more than or equal to the average charging times, recording the effective times as the charging piles in the distribution area, comparing the number of the effective times with the number of the charging piles to obtain the effective utilization rate YSLi of the AC charging piles in the distribution area, and similarly, counting the charging time length of each AC charging pile in the distribution area, summing the charging time length of each AC charging pile in the distribution area to obtain the total charging time length of the AC charging piles in the distribution area, dividing the total charging time by the number of charging piles to obtain the average charging time of the alternating-current charging piles in the distribution area, traversing the average charging time to each alternating-current charging pile to obtain the alternating-current charging piles of which the charging time is more than or equal to the average charging time and recording the alternating-current charging piles as the effective charging time of the distribution area, comparing the number of the effective charging piles to the number of the charging piles to obtain the effective charging rate YCLi of the alternating-current charging piles in the distribution area, and combining a formula
Figure BDA0003418720880000121
The method comprises the steps of obtaining YXi effective charging pile numbers of alternating-current charging piles in a distribution area through calculation, obtaining the quantity difference of the alternating-current charging piles in the distribution area through calculation of the difference value between YXi effective charging pile numbers and the total number CZSI of the charging piles, generating a normal distribution signal if the quantity difference of the alternating-current charging piles in the distribution area does not exceed a preset range, generating a distribution optimization signal if the quantity difference of the alternating-current charging piles in the distribution area exceeds the preset range, feeding the normal distribution signal or the distribution optimization signal back to a server through a distribution optimization module, not performing any operation if the server receives the normal distribution signal, and performing distribution optimization on the alternating-current charging piles in the corresponding distribution area if the server receives the distribution optimization signal;
meanwhile, charging monitoring is carried out on the alternating-current charging piles in the distribution area through a charging monitoring module, if the alternating-current charging piles are not in a charging state, no operation is carried out, if the alternating-current charging piles are in the charging state, charging time length of the alternating-current charging piles is obtained, time points are set at any time in the charging time length, temperature values WCiot of the alternating-current charging piles at corresponding time points are obtained, time difference values of two adjacent time points and temperature difference values of the alternating-current charging piles at two adjacent time points are obtained, the temperature difference values are divided by the time difference values to obtain temperature change rates between the two adjacent time points, the temperature change rates between the two adjacent time points are added and summed up to the number of the time periods to obtain the average temperature change rate JWSCio of the alternating-current charging piles in the charging time length, the charging monitoring module sends the temperature values WCiot of the alternating-current charging piles at the time points and the average temperature change rate JWSCio of the alternating-current charging piles in the charging time length to a server, the server sends the temperature value WCiot of the alternating-current charging pile at the time point and the average rate JWSCio of the temperature change of the alternating-current charging pile in the charging time to the fault determination module;
the charging condition of the alternating-current charging pile in the charging state is subjected to fault judgment through a fault judgment module, a temperature threshold value and a temperature change rate threshold value of the alternating-current charging pile in a distribution area are obtained, the temperature value of the alternating-current charging pile in the distribution area at a time point is compared with the temperature threshold value, the average temperature change rate and the temperature change rate threshold value of the alternating-current charging pile in the distribution area within a charging time period are obtained, if the temperature value at any time point is greater than or equal to the temperature threshold value, a charging fault signal is generated, otherwise, a charging normal signal is generated, if the average temperature change rate within the charging time period is greater than or equal to the temperature threshold value, a charging fault signal is generated, otherwise, the charging fault signal or the charging normal signal is generated, the fault judgment module feeds the charging fault signal or the charging normal signal back to a server, and the server sends the charging fault signal to a corresponding user terminal, the user terminal replaces the alternating current charging pile to charge the electric automobile;
the system also comprises a charging self-recommendation module, the server sends charging data to the charging self-recommendation module, self-recommendation is carried out on the alternating current charging pile through the charging self-recommendation module, and the charging speed of the alternating current charging pile is obtainedThe rate CSio, the charging times CCio, the charging task number CRio and the failure times GCio are combined with a formula
Figure BDA0003418720880000131
And calculating to obtain a recommended value TJio of the alternating-current charging pile, obtaining a recommended table according to the numerical value descending order of the recommended value, feeding the recommended table back to the server by the charging self-recommendation module, and sequentially recommending the alternating-current charging pile to the user terminals sequenced by the charging sequencing module by the server according to the recommended table.
The above formulas are all calculated by taking the numerical value of the dimension, the formula is a formula which is obtained by acquiring a large amount of data and performing software simulation to obtain the latest real situation, and the preset parameters in the formula are set by the technical personnel in the field according to the actual situation, such as the formula:
Figure BDA0003418720880000141
the charging rate, the charging times, the charging task number and the fault times of the alternating current charging pile are collected by technicians in the field, and corresponding proportionality coefficients are set for the collected data; substituting the set proportional coefficient and the collected data into a formula, and calculating to obtain a recommended value TJio of the alternating-current charging pile, wherein the proportional coefficient is a specific numerical value obtained by quantifying each parameter, so that subsequent comparison is facilitated, and regarding the proportional coefficient, the proportional relation between the parameter and the quantified numerical value is not affected.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (7)

1. A multi-path distributed alternating-current charging system for an electric automobile is characterized by comprising a data acquisition module, a user terminal, a charging sequencing module, a distribution optimization module, a charging monitoring module, a fault judgment module and a server, wherein the user terminal is used for a user to send a charging request and send the charging request to the charging sequencing module through the server; the data acquisition module is used for acquiring operation data, charging data and user data of a charging request of the alternating-current charging pile and sending the operation data, the charging data and the user data to the server, the server sends the user data to the charging sorting module, the charging sorting module is used for sorting the charging request to obtain a charging sorting table and feeding the charging sorting table back to the server, and the server processes the charging request sent by the user terminal according to the charging sorting table;
the distribution optimization module is used for optimizing the distribution of the alternating-current charging piles, generating normal distribution signals or optimized distribution signals and feeding the normal distribution signals or optimized distribution signals back to the server, if the server receives the normal distribution signals, no operation is performed, and if the server receives the optimized distribution signals, the distribution optimization is performed on the alternating-current charging piles in the corresponding distribution area;
the charging monitoring module is used for charging and monitoring the alternating-current charging piles in the distribution area, monitoring to obtain a temperature value WCiot of the alternating-current charging piles at a time point and an average rate JWSCio of temperature change of the alternating-current charging piles in charging duration and sending the temperature value WCiot of the alternating-current charging piles at the time point and the average rate JWSCio of temperature change of the alternating-current charging piles in the charging duration to the server, the server sends the temperature value WCiot of the alternating-current charging piles at the time point and the average rate JWSCio of temperature change of the alternating-current charging piles in the charging duration to the fault judging module, the fault judging module is used for carrying out fault judgment on charging conditions of the alternating-current charging piles in the charging state to generate charging fault signals or charging normal signals to be fed back to the server, the server sends the charging fault signals to corresponding user terminals, and the user terminals are used for replacing the alternating-current charging piles to charge the electric automobile.
2. The multi-path distributed alternating current charging system for the electric automobile according to claim 1, wherein the operation data is a real-time temperature value of an alternating current charging pile;
the charging data comprises the number, charging times, charging rate and charging duration of the alternating-current charging piles;
the user data comprises the charging times, the charging time, the generation time of the charging request and the user grade of the user terminal corresponding to the charging request of the user.
3. The multi-path distributed alternating-current charging system for the electric vehicle as claimed in claim 1, wherein the sequencing process of the charging sequencing module is as follows:
the method comprises the following steps: marking the charging request as u, u is 1, 2, … …, z, z is a positive integer; acquiring a user level of a user terminal corresponding to the charging request, and recording a level value of the user level as DJu;
step two: acquiring the charging times of the user terminal corresponding to the charging request, and marking the charging times as CCu; acquiring the charging time length of each charging, adding the charging time lengths of each charging and averaging to obtain a charging average time JCTu;
step three: combination formula
Figure FDA0003418720870000021
Calculating to obtain a user value YHu of the user terminal corresponding to the charging request; in the formula, a1, a2 and a3 are all proportionality coefficients with fixed numerical values, and the values of a1, a2 and a3 are all larger than zero;
step four: acquiring the generation time of the charging request, and subtracting the generation time from the current time of the server to obtain the generation duration STu of the charging request;
step five: substituting the generation time length Stu of the charging request and the user value YHu of the corresponding user terminal into a calculation formula PXu ═ StuYHuCalculating the x alpha to obtain an ordering value PXu of the charging request; in the formula, alpha is an error compensation coefficient of a fixed numerical value, and the value of alpha is more than 1;
step six: and (4) obtaining a charging sorting table by descending sorting according to the numerical value of the sorting value.
4. The multi-path distributed alternating current charging system for the electric vehicle as claimed in claim 3, wherein the higher the user level is, the larger the level value corresponding to the user level is.
5. The multi-path distributed alternating-current charging system for the electric vehicle as claimed in claim 1, wherein the optimization process of the distribution optimization module is as follows:
step S1: dividing the area where the alternating-current charging pile is located to obtain a distribution area i of the alternating-current charging pile, wherein i is 1, 2, … …, and x is a positive integer;
step S2: acquiring the quantity of the alternating current charging piles in each distribution area, and recording the quantity as the total quantity CZSI of the charging piles in the distribution area;
step S3: counting the charging times of each alternating-current charging pile in the distribution area, summing the charging times of each alternating-current charging pile to obtain the total charging times of the alternating-current charging piles in the distribution area, and dividing the total charging times by the number of the charging piles to obtain the average charging times of the alternating-current charging piles in the distribution area;
step S4: the average charging times are compared in a traversing mode, the charging times of each alternating-current charging pile are obtained, the alternating-current charging piles with the charging times larger than or equal to the average charging times are obtained and recorded as the effective charging piles of the distribution area, and the effective utilization rates YSLi of the alternating-current charging piles in the distribution area are obtained by comparing the number of the effective charging piles with the number of the charging piles;
step S5: similarly, the charging time of each alternating-current charging pile in the distribution area is counted, the charging time of each alternating-current charging pile is added and summed to obtain the total charging time of the alternating-current charging piles in the distribution area, and the total charging time is divided by the number of the charging piles to obtain the average charging time of the alternating-current charging piles in the distribution area;
the average charging time length is compared with the charging time length of each alternating-current charging pile in a traversing mode, the charging time length is obtained, the alternating-current charging piles larger than or equal to the average charging time length are obtained and recorded as effective time length charging piles in a distribution area, and the effective charging rate YCLi of the alternating-current charging piles in the distribution area is obtained by comparing the number of the effective time length charging piles with the number of the charging piles;
step S6: combination formula
Figure FDA0003418720870000031
Calculating to obtain the effective charging pile number YXi of the alternating current charging piles in the distribution area;
step S7: calculating the difference value between the effective charging pile number YXi and the total number CZSI of the charging piles to obtain the number difference of the alternating current charging piles in the distribution area;
if the quantity difference of the alternating current charging piles in the distribution area does not exceed the preset range, generating a normal distribution signal;
and if the quantity difference of the alternating current charging piles in the distribution area exceeds a preset range, generating a distribution optimization signal.
6. The multi-path distributed alternating-current charging system for the electric vehicle as claimed in claim 1, wherein the monitoring steps of the charging monitoring module are as follows:
step SS 1: marking the alternating current charging piles as Cio, wherein o is 1, 2, … …, v and v are positive integers, and o represents the serial numbers of the alternating current charging piles in the distribution area;
step SS 2: if the alternating-current charging pile is in a charging state, acquiring the charging time of the alternating-current charging pile, and entering the next step;
if the alternating current charging pile is not in a charging state, no operation is performed;
step SS 3: setting a time point at any time in the charging duration, and acquiring a temperature value WCiot of the alternating-current charging pile at the corresponding time point, wherein t is 1, 2, … …, n and n are positive integers, and t represents a serial number of the time point;
step SS 4: acquiring a time difference value of two adjacent time points and a temperature difference value of the alternating current charging pile at the two adjacent time points, and dividing the temperature difference value by the time difference value to obtain a temperature change rate between the two adjacent time points;
step SS 5: and adding the temperature change rates between two adjacent time points and summing the number of the time periods to obtain the average temperature change rate JWSCio of the alternating-current charging pile in the charging time.
7. The multi-path distributed alternating current charging system for the electric vehicle as claimed in claim 6, wherein the fault determination module specifically operates as follows:
step P1: acquiring a temperature threshold and a temperature change rate threshold of an alternating current charging pile in a distribution area;
step P2: comparing the temperature value of the alternating-current charging pile in the distribution area at the time point with a temperature threshold value, and comparing the average temperature change rate of the alternating-current charging pile in the distribution area within the charging time with the temperature change rate threshold value;
step P3: if the temperature value at any time point is greater than or equal to the temperature threshold value, generating a charging fault signal, otherwise, generating a charging normal signal;
step P4: and if the average rate of temperature change in the charging time is greater than or equal to the temperature threshold, generating a charging fault signal, otherwise, generating a charging normal signal.
CN202111554539.8A 2021-12-17 2021-12-17 Multichannel distributing type electric automobile alternating current charging system Pending CN114211996A (en)

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