CN110543967B - Electric vehicle waiting time distribution short-time prediction method in network connection charging station environment - Google Patents
Electric vehicle waiting time distribution short-time prediction method in network connection charging station environment Download PDFInfo
- Publication number
- CN110543967B CN110543967B CN201910664921.0A CN201910664921A CN110543967B CN 110543967 B CN110543967 B CN 110543967B CN 201910664921 A CN201910664921 A CN 201910664921A CN 110543967 B CN110543967 B CN 110543967B
- Authority
- CN
- China
- Prior art keywords
- charging station
- charging
- electric vehicle
- time
- distribution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000005315 distribution function Methods 0.000 claims abstract description 6
- 230000014509 gene expression Effects 0.000 claims description 12
- 238000007476 Maximum Likelihood Methods 0.000 claims description 6
- 230000006855 networking Effects 0.000 claims description 4
- 238000006467 substitution reaction Methods 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims description 2
- 238000009792 diffusion process Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims 1
- 238000004364 calculation method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 201000004569 Blindness Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/04—Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0631—Resource planning, allocation, distributing or scheduling for enterprises or organisations
- G06Q10/06315—Needs-based resource requirements planning or analysis
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/06—Energy or water supply
Landscapes
- Business, Economics & Management (AREA)
- Human Resources & Organizations (AREA)
- Engineering & Computer Science (AREA)
- Economics (AREA)
- Strategic Management (AREA)
- Entrepreneurship & Innovation (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Marketing (AREA)
- General Physics & Mathematics (AREA)
- General Business, Economics & Management (AREA)
- Tourism & Hospitality (AREA)
- Health & Medical Sciences (AREA)
- Development Economics (AREA)
- Game Theory and Decision Science (AREA)
- Operations Research (AREA)
- Quality & Reliability (AREA)
- Public Health (AREA)
- Primary Health Care (AREA)
- Water Supply & Treatment (AREA)
- General Health & Medical Sciences (AREA)
- Educational Administration (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A method for predicting the distribution of electric vehicle waiting time in a short time under the environment of a network connection charging station comprises the following specific steps: step 1, calculating a charging requirement; and 2, predicting the distribution of the waiting time. The method comprehensively considers the influence factors of the user selecting the charging stations, and calculates the charging requirements of the charging stations; and solving a charging waiting time distribution function of the electric automobile by adopting an M/G/n queuing model and utilizing real-time information of the network connection charging station, so as to realize short-time prediction of the charging waiting time distribution of the electric automobile.
Description
Technical Field
The invention relates to a method for predicting the distribution of electric vehicle waiting time in a network charging station environment in a short time, and belongs to the field of intelligent transportation.
Background
The current world faces double examinations of energy shortage and environmental pollution, and the electric automobile is rapidly developed due to the advantages of energy conservation, zero emission and the like. However, due to the battery technology and the charging facility technology, the electric automobile has the problems of short endurance mileage, long charging time, low charging efficiency of the rapid charging pile and the like. In order to relieve the mileage anxiety of users, charging facilities are vigorously built nationwide, and many scholars also strive to optimize the layout of the electric vehicle charging station from the planning point of view. However, due to factors such as land, infrastructure, environment and the like, the charging station is difficult to realize in reasonable layout, so that the charging station has the phenomena of 'no pile in a vehicle' and 'no pile in a vehicle'. Meanwhile, the randomness and the blindness of the user for selecting the charging stations aggravate the phenomenon of unbalanced distribution of the service levels of the charging stations, so that part of the charging stations are too long in queue, the space-time resources are wasted, and the travel cost of the user is increased. Because the number of vehicles arriving at the charging station and the charging time of the electric vehicle are randomly changed, and different vehicles have different tolerance degrees on the reliability of the waiting time, the average waiting time is difficult to be suitable for different time periods, different charging stations and different vehicles, the statistical law of the charging waiting time can be completely described through the distribution of the waiting time, and a basis is provided for formulating a more detailed and reasonable traffic demand distribution and guidance scheme. Under the environment of the charging station connected with the internet, the service condition of the charging pile, the number of the electric vehicles needing to be charged on the road network and the position information can be obtained in real time, the information can effectively process and analyze the selection difference of users, and the calculation precision of the charging requirement is improved. Therefore, the method for predicting the short-time distribution of the waiting time of the electric vehicle in the network charging station environment is significant.
Disclosure of Invention
Aiming at the problems, the invention provides a method for predicting the distribution of the charging waiting time of the electric vehicle in the environment of the network connection charging station. Comprehensively considering influence factors of a user for selecting the charging stations, and calculating the charging requirements of the charging stations; and solving a charging waiting time distribution function of the electric automobile by adopting an M/G/n queuing model and utilizing real-time information of the network connection charging station, so as to realize short-time prediction of the charging waiting time distribution of the electric automobile.
A method for predicting the distribution of electric vehicle waiting time in a short time under the environment of a network connection charging station comprises the following specific steps:
1. calculating a charging requirement;
the total number N of vehicles needing to be charged on the road network in the time period can be obtained under the condition of the network connection charging stationnc. Number of vehicles arriving at kth charging station per time period Ns,kEqual to the total number N of vehicles needing to be charged on the road network in the periodncAnd the probability P of selecting the kth charging stationkProduct of (2)
Ns,k=Nnc·Pk (1)
Probability P that the k-th charging station is selectedkThe probability of selecting the k-th charging station by the user i of the electric vehicle is determined
In the formula, Pi,kSelecting the kth charging station probability for the electric vehicle user i, AmIs a selectable set of charging stations.
There are multiple factors influencing the user to select the charging station, each influencing factor has a quantifiable utility value, and the user selects the charging station to charge according to the utility maximization principle. Thus, the probability that the user i of the electric vehicle selects the k-th charging station is
In the formula, Vi,kAnd selecting the utility value of the k charging station for the electric vehicle user i.
The utility function of selecting the charging station by the user is constructed by utilizing the charging cost, the distance from the charging station, the charging time period, the nearby buildings and the occupation condition of the charging pile, and the utility function of selecting the k-th charging station by the user i of the electric vehicle is constructed due to the independence of all factors
Vi,k=θ1Ci,k+θ2Di,k+θ3Ti,k+θ4Zi,k+θ5Bi,k (4)
In the formula: ci,kThe charging cost index of the kth charging station for the electric vehicle user i is represented; di,kThe distance index represents the distance index of the user i of the electric automobile from the charging station k; t isi,kRepresenting the influence index of the k charging station on the charging time period of the electric vehicle user i; b isi,kRepresenting the influence index of a building near the charging station k on the electric vehicle user i; zi,kThe influence indexes of the occupation situation of the charging pile of the charging station k on the electric vehicle user i are represented; theta1、θ2、θ3、θ4、θ5Respectively, the parameters of the influencing factors to be estimated.
Using maximum likelihood estimationAnd solving the coefficient of the influencing factor parameter. For the Multi-logit model, the introduction of the indicative function I is required before solvingAThe expression form is as follows
In the formula: omegaiThe charging station actually selected for user i; a (k) is a selectable charging station set AmThe kth element of (1). Using maximum likelihood estimation
In the formula: l is a maximum likelihood function; θ is the system vector.
Taking logarithm on two sides
Then respectively aim at theta1、θ2、θ3、θ4、θ5Taking the derivative and making the derivative equal to 0 to obtain the equation set
Substituting the parameters of the influencing factors into an equation to obtain a coefficient theta1、θ2、θ3、θ4、θ5The value of (c) is the optimal estimated value.
2. Predicting a latency distribution;
the arrival of the vehicles at the charging station is in a poisson process, the charging service time length is in gamma distribution, and a queuing system of the electric vehicles at the charging station belongs to an M/G/n queuing model. At present, operation research has no clear mathematical expression on system operation indexes of an M/G/n queuing model, and in order to obtain an explicit theoretical solution of waiting time distribution, the method combines a diffusion approximation model and a substitute quantity to solve a charging waiting time distribution function of the electric automobile.
In the electric vehicle M/G/n queuing model, n is the total number of the quick charging piles of the charging station; lambda is the average arrival rate of the electric vehicle in the poisson process and represents the average number of vehicles arriving at a charging station in unit time; mu is the service rate of a single charging pile, and represents that mu vehicles finish service and leave the charging station in unit time on the single charging pile; n isaNumber of arriving vehicles; rho is the total service intensity of the charging station, is a dimensionless quantity and represents the service time required to be provided by the system in unit time, and the expression isCTIs the variation coefficient of the service time T, is used for measuring the fluctuation of the service time T, and has the expression ofWhere σ (T) is the standard deviation of the service time, and E (T) is the mean of the service times. Proposing a stable probability distribution of captainThe expression is
In the formula (I), the compound is shown in the specification,is an infinitesimal sum of varianceIs taken as the mean value of the average value, amount of substitutionThe alternative expressions are respectively
From equation (9), the stationary probability distribution is knownThe main dependent variables λ and CTInfluence. Now consider that after statistical equilibrium (i.e., at conditional service strength ρ < 1), the information obtained is aboutTo solve the equation, letnaN-1, sigma is undetermined coefficient.
Therefore, the charging waiting time distribution of the electric automobile after statistical balance is
Obtaining average arrival rate lambda of charging demand prediction by utilizing charging station data in networking charging stationnwAnd establishing a prediction algorithm of the distribution of the charging waiting time of the electric automobile in the environment of the network connection charging station by combining the charging time length of the electric automobile occupying each quick charging pile acquired in real time.
Average arrival rate lambda in obtaining predictionnwThen, the total service intensity rho of the charging station under the environment of the network connection charging station can be obtainednwIs composed of
The charging time length of each charged electric vehicle occupying the quick charging pile can be acquired in real time in the environment of the network connection charging station, and when the charging station has a queuing condition, the queuing waiting time of the system can be reduced due to the charging time length. Due to the charged time length to the charging timeThe long standard deviation σ (T) has less influence, and the coefficient of variation C is mainly changed by the average charging time period E (T)TCausing the latency distribution function to vary. The total charged time of the electric automobile in the charging station is recorded as TsumAnd the average charging time E of the electric automobile in the network charging station environmentnw(T) is
In the formula: e (T) recording the average charging time of the electric vehicle in the non-networking charging station environmentThen Enw(T) ═ E (T) — Δ E. The influence of the variance of the charging period is small, and it can be considered that σ (T) ═ CTE (T), the coefficient of variation in the environment of the network charging station is
Infinite small variance in network charging station environmentSum mean valueAre respectively expressed asCorrection of intermediate substitution in probability density functionAndare respectively expressed asStationary probability distributionExpression formula
Therefore, the charging waiting time of the electric vehicle under the environment of the network connection charging station is distributed as
The invention has the advantages that: according to the method and the device, the use condition of the charging pile, the number and the position of the electric vehicles needing to be charged on the road network and other information which are obtained in real time in the environment of the network connection charging station are utilized, the selection difference of the user is effectively processed and analyzed, and the calculation precision of the charging requirement is improved. Meanwhile, the obtained waiting time distribution tends to be consistent with the actual distribution, and a reference basis can be provided for a user to select a charging station in advance.
Drawings
FIG. 1 is a flow chart of the charging requirement of the present invention.
FIG. 2 is a flow chart of the method of the present invention.
Fig. 3 is a graph comparing the latency distribution with the actual distribution at different arrival rates.
Examples of the invention
After the distribution of the waiting time under the charging station data in the network-connected charging stations is solved, the actual distribution of the waiting time of the charging stations 1 in a certain area of a certain city in a period of 5, 14 days in 2018 is selected to be compared with the predicted distribution, the arrival rate λ of the charging stations 1 in 6:00-6:30 is 6, the arrival rate λ of 7:30-8:00 is 9, the arrival rate λ of 8:30-9:00 is 11 are obtained through the charging demand prediction, and the comparison of the distribution of the waiting time under each arrival rate of the charging stations 1 with the actual distribution is shown in fig. 3.
As can be seen from fig. 3, since the average arrival rate per period changes with the period, the distribution of the waiting time per period of the charging station changes, and the distribution of the waiting time in the networked charging station environment can describe the statistical regularity of the actual overall waiting time and tends to be consistent with the actual distribution. Therefore, the prediction of the short-time waiting time distribution in the network charging station environment can provide reference for the user to select the charging station in advance.
The embodiments described in this specification are merely illustrative of implementations of the inventive concept and the scope of the present invention should not be considered limited to the specific forms set forth in the embodiments but rather by the equivalents thereof as may occur to those skilled in the art upon consideration of the present inventive concept.
Claims (1)
1. A method for predicting the distribution of electric vehicle waiting time in a short time under the environment of a network connection charging station comprises the following specific steps:
step 1, calculating a charging requirement;
the total number N of vehicles needing to be charged on the road network in the time period can be obtained under the condition of the network connection charging stationnc(ii) a Number of vehicles arriving at kth charging station per time period Ns,kEqual to the total number N of vehicles needing to be charged on the road network in the periodncAnd the probability P of selecting the kth charging stationkProduct of (2)
Ns,k=Nnc·Pk (1)
Probability P that the k-th charging station is selectedkThe probability of selecting the k-th charging station by the user i of the electric vehicle is determined
In the formula, Pi,kSelecting the kth charging station probability for the electric vehicle user i, AmIs a selectable set of charging stations;
the charging station selection of the user is influenced by various factors, each influencing factor has a quantifiable utility value, and the user selects the charging station to charge according to the utility maximization principle; thus, the probability that the user i of the electric vehicle selects the k-th charging station is
In the formula, Vi,kSelecting a utility value of a k charging station for an electric vehicle user i;
the utility function of selecting the charging station by the user is constructed by utilizing the charging cost, the distance from the charging station, the charging time period, the nearby buildings and the occupation condition of the charging pile, and the utility function of selecting the k-th charging station by the user i of the electric vehicle is constructed due to the independence of all factors
Vi,k=θ1Ci,k+θ2Di,k+θ3Ti,k+θ4Zi,k+θ5Bi,k (4)
In the formula: ci,kThe charging cost index of the kth charging station for the electric vehicle user i is represented; di,kThe distance index represents the distance index of the user i of the electric automobile from the charging station k; t isi,kRepresenting the influence index of the k charging station on the charging time period of the electric vehicle user i; b isi,kRepresenting the influence index of a building near the charging station k on the electric vehicle user i; zi,kThe influence indexes of the occupation situation of the charging pile of the charging station k on the electric vehicle user i are represented; theta1、θ2、θ3、θ4、θ5Respectively are the parameters of the influence factors to be estimated;
solving the parameter coefficient of the influencing factor by adopting maximum likelihood estimation; for the Multi-logit model, the introduction of the indicative function I is required before solvingAThe expression form is as follows
In the formula: omegaiThe charging station actually selected for user i; a (k) is a selectable charging station set AmThe kth element of (1); using maximum likelihood estimation
In the formula: l is a maximum likelihood function; theta is a system vector;
taking logarithm on two sides
Then respectively aim at theta1、θ2、θ3、θ4、θ5Taking the derivative and making the derivative equal to 0 to obtain the equation set
Substituting the parameters of the influencing factors into an equation to obtain a coefficient theta1、θ2、θ3、θ4、θ5The value of (b) is the optimal estimated value;
step 2, predicting the distribution of waiting time;
the vehicle arrival of the charging station is in a poisson process, the charging service time length is in gamma distribution, and a queuing system of the electric vehicle at the charging station belongs to an M/G/n queuing model; at present, operation research has no clear mathematical expression on system operation indexes of an M/G/n queuing model, and in order to obtain an explicit theoretical solution of waiting time distribution, the method combines a diffusion approximation model and a substitute quantity to solve a charging waiting time distribution function of the electric automobile;
in the electric vehicle M/G/n queuing model, n is the total number of the quick charging piles of the charging station; lambda is the average arrival rate of the electric vehicle in the poisson process and represents the average number of vehicles arriving at a charging station in unit time; mu is the service rate of a single charging pile, and represents that mu vehicles finish service and leave the charging station in unit time on the single charging pile; n isaNumber of arriving vehicles; rho is the total service intensity of the charging station, is a dimensionless quantity and represents the service time required to be provided by the system in unit time, and the expression isCTIs the variation coefficient of the service time T, is used for measuring the fluctuation of the service time T, and has the expression ofWhere σ (T) is the standard deviation of the service time, E (T) is the mean of the service times; proposing a stable probability distribution of captainThe expression is
In the formula (I), the compound is shown in the specification,is an infinitesimal sum of varianceIs taken as the mean value of the average value, amount of substitutionThe alternative expressions are respectively
From equation (9), the stationary probability distribution is knownThe main dependent variables λ and CT(ii) an effect; now thatAfter taking into account the statistical balance, i.e. in terms of conditional service strength ρ<Under 1, get aboutTo solve the equation, letnaN-1 or more, wherein sigma is a undetermined coefficient;
therefore, the charging waiting time distribution of the electric automobile after statistical balance is
Obtaining average arrival rate lambda of charging demand prediction by utilizing charging station data in networking charging stationnwEstablishing a prediction algorithm of electric vehicle charging waiting time distribution in the environment of the network connection charging station by combining the charging time length of each charging electric vehicle occupying the quick charging pile acquired in real time;
average arrival rate lambda in obtaining predictionnwThen, the total service intensity rho of the charging station under the environment of the network connection charging station can be obtainednwIs composed of
The method can acquire the charged time length of each charged electric vehicle occupying the quick charging pile in real time in the environment of the network charging station, and when the charging station has a queuing condition, the charged time length can reduce the queuing waiting time of the system; since the standard deviation σ (T) of the charged time length has little influence on the charged time length, the coefficient of variation C is varied mainly by the average charged time length E (T)TCausing the latency distribution function to vary; the total charged time of the electric automobile in the charging station is recorded as TsumAnd the average charging time E of the electric automobile in the network charging station environmentnw(T) is
In the formula: e (T) recording the average charging time of the electric vehicle in the non-networking charging station environmentThen Enw(T) ═ E (T) — Δ E; the influence of the variance of the charging period is small, and it can be considered that σ (T) ═ CTE (T), the coefficient of variation in the environment of the network charging station is
Infinite small variance in network charging station environmentSum mean valueAre respectively expressed asCorrection of intermediate substitution in probability density functionAndare respectively expressed asStationary probability distributionExpression formula
Therefore, the charging waiting time of the electric vehicle under the environment of the network connection charging station is distributed as
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910664921.0A CN110543967B (en) | 2019-07-23 | 2019-07-23 | Electric vehicle waiting time distribution short-time prediction method in network connection charging station environment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910664921.0A CN110543967B (en) | 2019-07-23 | 2019-07-23 | Electric vehicle waiting time distribution short-time prediction method in network connection charging station environment |
Publications (2)
Publication Number | Publication Date |
---|---|
CN110543967A CN110543967A (en) | 2019-12-06 |
CN110543967B true CN110543967B (en) | 2021-06-08 |
Family
ID=68709977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910664921.0A Active CN110543967B (en) | 2019-07-23 | 2019-07-23 | Electric vehicle waiting time distribution short-time prediction method in network connection charging station environment |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110543967B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112465222B (en) * | 2020-11-26 | 2023-07-07 | 浙江警察学院 | Optimal charging station selection method based on charging station service level prediction |
CN113442778B (en) * | 2021-06-28 | 2022-08-16 | 国网山东省电力公司信息通信公司 | Electric vehicle charging allocation method, device and system based on Internet of vehicles |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108182537A (en) * | 2017-12-30 | 2018-06-19 | 国网天津市电力公司电力科学研究院 | Electric taxi quick charge station service characteristic analysis method based on queueing theory |
CN109636067A (en) * | 2019-01-09 | 2019-04-16 | 浙江工业大学 | A kind of electric car charging schedule optimization method based on particle swarm algorithm |
CN109693576A (en) * | 2019-01-10 | 2019-04-30 | 浙江工业大学 | A kind of electric car charging schedule optimization method based on simulated annealing |
CN109784558A (en) * | 2019-01-11 | 2019-05-21 | 浙江工业大学 | A kind of electric car charging schedule optimization method based on ant group algorithm |
CN109840624A (en) * | 2019-01-08 | 2019-06-04 | 浙江工业大学 | A kind of electric car charging schedule optimization method based on Dijkstra algorithm |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101624017B (en) * | 2009-08-13 | 2011-06-15 | 顾金华 | System for managing continuous status of batteries of electric motorcar |
CN107180272B (en) * | 2017-04-28 | 2018-11-02 | 华南理工大学 | Electric vehicle parking lot charging method based on energy consumption control |
-
2019
- 2019-07-23 CN CN201910664921.0A patent/CN110543967B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108182537A (en) * | 2017-12-30 | 2018-06-19 | 国网天津市电力公司电力科学研究院 | Electric taxi quick charge station service characteristic analysis method based on queueing theory |
CN109840624A (en) * | 2019-01-08 | 2019-06-04 | 浙江工业大学 | A kind of electric car charging schedule optimization method based on Dijkstra algorithm |
CN109636067A (en) * | 2019-01-09 | 2019-04-16 | 浙江工业大学 | A kind of electric car charging schedule optimization method based on particle swarm algorithm |
CN109693576A (en) * | 2019-01-10 | 2019-04-30 | 浙江工业大学 | A kind of electric car charging schedule optimization method based on simulated annealing |
CN109784558A (en) * | 2019-01-11 | 2019-05-21 | 浙江工业大学 | A kind of electric car charging schedule optimization method based on ant group algorithm |
Non-Patent Citations (2)
Title |
---|
《Minimizaiton of queuing time of electric vehicles at a fast charging station》;Farhan H.Malik et al;《2017 IEEE PES innovation smart grid technologies conference europe(ISGT-Europe)》;20180118;全文 * |
《基于排队论的电动汽车充电站选址定容研究》;卢芳;《中国优秀硕士学位论文全文数据库工程科技II辑》;20150915;全文 * |
Also Published As
Publication number | Publication date |
---|---|
CN110543967A (en) | 2019-12-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
TWI638328B (en) | Electricity demand prediction device, electricity supply system, method of predicting electricity demand, program , electricity supply menage device | |
CN106203720B (en) | A kind of schedulable capacity prediction methods of Multiple Time Scales electric car cluster | |
CN109693576B (en) | Electric vehicle charging scheduling optimization method based on simulated annealing algorithm | |
CN109177802B (en) | Electric automobile ordered charging system and method based on wireless communication | |
Thorgeirsson et al. | Probabilistic prediction of energy demand and driving range for electric vehicles with federated learning | |
CN110543967B (en) | Electric vehicle waiting time distribution short-time prediction method in network connection charging station environment | |
CN110555990A (en) | effective parking space-time resource prediction method based on LSTM neural network | |
CN108944500B (en) | Electric vehicle charging scheduling method based on distributed station joint control | |
CN108493969B (en) | Intelligent planning method for electric vehicle charging station | |
CN108564391A (en) | A kind of shared electric vehicle needing forecasting method and system considering subjective and objective information | |
CN110213784B (en) | Flow prediction method and device | |
CN111046576B (en) | Electric private car charging load prediction method considering double-network information | |
CN112507506B (en) | Multi-objective optimization method for sharing automobile pricing planning model based on genetic algorithm | |
CN113085655A (en) | Vehicle-mounted electric automobile comprehensive service system | |
CN115660501A (en) | Electric vehicle charging load adjustable margin evaluation method | |
CN113147506B (en) | Big data-based vehicle-to-vehicle mutual learning charging remaining time prediction method and device | |
CN114936666A (en) | Electric vehicle charging navigation method and system based on vehicle-station-platform system | |
CN110991856B (en) | Electric vehicle charging demand analysis method considering user limitation | |
Falco et al. | Agent-based modelling to evaluate the impact of plug-in electric vehicles on distribution systems | |
CN112465222A (en) | Optimal charging station selection method based on charging station service level prediction | |
CN110516372B (en) | Electric vehicle charge state space-time distribution simulation method considering quasi-dynamic traffic flow | |
CN112098869A (en) | Self-adaptive electric vehicle SOC estimation method based on big data | |
Akbari et al. | Futuristic model of electric vehicle charging queues | |
CN116739146A (en) | Method for V2G price excitation mechanism considering battery loss | |
CN114492169B (en) | Electric automobile user portraying method and system considering user market response potential |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |