CN110704943A

CN110704943A - Parameterized intelligent simulation platform for interaction of electric vehicle pile vehicles

Info

Publication number: CN110704943A
Application number: CN201910851783.7A
Authority: CN
Inventors: 郭创新; 朱承治; 王雪平; 曹袖; 刘洞宇
Original assignee: Zhejiang University ZJU; State Grid Zhejiang Electric Power Co Ltd
Current assignee: Zhejiang University ZJU; State Grid Zhejiang Electric Power Co Ltd
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-01-17
Anticipated expiration: 2039-09-10
Also published as: CN110704943B

Abstract

The invention discloses a parameterized intelligent simulation platform for electric vehicle pile-vehicle interaction. The system comprises a user interface module, a background module, an algorithm module, a database module and a cloud module, wherein the user interface module is based on a browser and is used for initialization configuration setting of a platform, real-scene display of a simulation process and drawing of related data results; the background module is based on Java and used as a server for providing access and is responsible for processing, calculating and maintaining various instances and attributes and methods thereof; the algorithm module parameterizes various data of the electric automobile, namely, the automobile and the pile, performs analog simulation through the algorithm module, inputs analog parameters and outputs a simulation result; the cloud module is used for performing transmission among modules through a Json data format, the communication protocol is Https, and simulation of the electric automobile charging pile and the automobile is realized based on a development API (application programming interface) of a high-grade map. The invention can improve the operation efficiency of the power grid as much as possible under the condition of meeting the user requirements of the electric automobile.

Description

Parameterized intelligent simulation platform for interaction of electric vehicle pile vehicles

Technical Field

The present invention relates to computer science and technology, electric power engineering and its automation and other subjects. The main content of the method is a parameterized intelligent simulation platform for electric vehicle pile-vehicle interaction, and particularly relates to the fields of electric power system design, simulation platform design and implementation, intelligent scheduling algorithm, mathematical modeling and the like.

Background

With the development of the Electric Vehicle (EV) industry, the number of electric vehicles is increased sharply, the influence of electric Vehicle charging and discharging on the power grid is increased, and the research on V2G (Vehicle-to-grid) is becoming more urgent. Among the studies of V2G, the study of V2G network simulation platform is more and more important. The explosive growth of the electric automobile inevitably brings about two problems: 1) loads generated by charging of the electric automobile are not ignored, and the time-space distribution characteristics of the charging loads generated by the electric automobile need to be researched, and meanwhile, factors influencing the distribution of the charging loads also need to be researched; 2) the problems related to the charging of the electric vehicle include characteristics and models of a battery of the electric vehicle, charging models (centralized, distributed or hierarchical) of the electric vehicle (especially a large number of electric vehicles), and influence of the charging of the electric vehicle on a power grid (if the charging is just used as a load, what influence is caused on the power grid). In this field of research, there is no very mature method for the targeted arrangement and solution of the above problems. Although there are some conventional simulation platforms, these simulation platforms do not have good simulation effect and pertinence to specific problems in the art. The simulation platform of the invention designs a specific parameterized simulation algorithm, and realizes the simulation with low cost, high reliability and more accuracy through the platform.

Disclosure of Invention

Aiming at the problem that a simulation platform specially used for electric automobile pile-car interaction is unavailable at present, a simulation basis is provided for electric pile positions and electric automobile charging, and the invention provides a parameterized intelligent simulation platform for electric automobile pile-car interaction.

The simulation platform comprises a user interface module, a background module, an algorithm module, a database module and a cloud module. The technical scheme for realizing the purpose is as follows:

and the user interface module is combined with the open API of the Gade map to realize dynamic display of the electric automobile charging pile and the automobile and real-time simulation. The system comprises detailed printing information, and the output information comprises the real-time of the platform, the available quantity of various piles, the quantity of various vehicles in use, the time-sharing service condition statistics of the intra-domain charging piles, the time-sharing load statistics of the intra-domain charging piles and the like. In order to enhance the visualization effect of the system, the system time is not consistent with the real time, and two demonstration modes of speed and slow are considered; in the setting of "fast mode", each second of real time corresponds to 5 minutes in the system.

The background module is mainly composed of a background control layer. The background is a pivot module of each module and is responsible for communication of information flows, and a control layer of the background controls the flow direction of the information flows to ensure normal operation of the simulation platform. The background module realizes a basic module of network communication and is responsible for the operation of the scheduling algorithm module through a network communication program. And the corresponding simulation task can be started according to the parameters transmitted by the foreground, so that the parameterized simulation work of the simulation system is realized. And the background module transmits the simulation result output by the algorithm module to the user interface module in real time to perform real-time visual simulation.

The algorithm module, which uses a physical-based approach for modeling, using an electrochemical cell model, can provide complete information about the electrochemical dynamics inside the cell, and is composed of a set of coupled Partial Differential Equations (PDEs) that explain how the electrochemical reactions occurring inside the cell generate and affect the cell's potential. The basic information determines the specific point placing rule of the electric automobile, and the rule is used for the simulation output of the simulation system, and a specific simulation example is demonstrated in fig. 3. The following formula is the object:

the database module utilizes the friendly property of a non-relational database to various data formats, combines the highly customizable of the API of the high-grade map, and greatly enriches the active objects and information of the simulation platform: the system comprises pre-configured global information, real-time statistical data, map areas, key blocks, starting points, ending points, empowerment paths, different types of charging piles and different types of electric automobiles;

the cloud module interacts with the background module through an HTTPS protocol, data are transmitted in a Json format, static and dynamic information to be displayed are transmitted to a cloud map by the background module, and a high-resolution map API (application programming interface) acquires the data transmitted by the background control layer and then renders pages to be displayed to the foreground user interface module. FIG. 4 demonstrates a rendered partial simulation interface.

The invention has the beneficial effects

On the basis of a simulation algorithm, the aim is to establish an electric automobile and an electric automobile charging and discharging model, research and establish interface functions and corresponding control mechanisms of the electric automobile and a power grid, perform corresponding simulation through the mechanisms to set a distributed control model of the electric automobile, and improve the operation efficiency of the power grid as much as possible under the condition of meeting the user requirements of the electric automobile. The method is characterized in that an electric automobile charging and discharging model and an electric automobile distributed control model are organically combined, meanwhile, a simulation platform calculates actual weather, nearby charging pile distribution, user charging habits and traffic conditions in real time, and the models are combined with the factors of the sum to serve as a core simulation algorithm to realize a parameterized simulation platform.

Drawings

FIG. 1 is a pile interaction flow diagram;

FIG. 2 is a TSI full time average profile;

FIG. 3 is a schematic representation of a calculation;

FIG. 4 is a rendering interface portion effect diagram;

Detailed Description

In order that those skilled in the art will better understand the technical solution of the present invention, the following detailed description is given with reference to the accompanying drawings:

the simulation platform mainly comprises a user interface module, a background module, an algorithm module, a database module and a cloud module. The structure is shown in figure 1, and the technical scheme for realizing the purpose is as follows:

js is realized based on vue, dynamic display of the electric vehicle charging pile and the vehicle is realized by combining with the open API of the Gaode map, and real-time simulation is realized. The system comprises detailed printing information, and the output information comprises the real-time of the platform, the available quantity of various piles, the quantity of various vehicles in use, the time-sharing service condition statistics of the intra-domain charging piles, the time-sharing load statistics of the intra-domain charging piles and the like. In order to enhance the visualization effect of the system, the system time is not consistent with the real time, and two demonstration modes of speed and slow are considered; as in the "fast mode" setting, each second of real time corresponds to 5 minutes in the system.

In the background module, a foreground transmits basic information such as the number of the electric vehicles to a background through GUI configuration, the background transmits the basic information to a CouchDB database for storage through an HTTP communication program, a back end polls the CouchDB database at short time intervals, reads corresponding configuration information after reading a mark position, constructs an electric vehicle example according to the configuration information, stores an example set into the database in a JSON format, and modifies the mark position. The background is a pivot module of each module and is responsible for communication of information flows, and a control layer of the background controls the flow direction of the information flows to ensure normal operation of the simulation platform. Fig. 3 shows the layered structure of the vehicle, pile and grid.

And the algorithm module selects a corresponding simulation model according to the initial parameters of the configuration information acquired from the foreground by the background module, and initializes the model by using the initial parameters. And then instantiating corresponding simulation exclusive shares in the memory and starting the simulation. Meanwhile, the algorithm module transmits the values of different parameters to the background module in real time, so that the background module transmits the parameters to the foreground for real-time dynamic display.

The database module first initializes the active objects and information: the system comprises pre-configured global information, real-time statistical data, map areas, key blocks, starting points, ending points, empowerment paths, different types of charging piles and different types of electric automobiles. These data are stored in a database and later recalled. The database module uses a database driver, and specific data operations and accesses such as adding, deleting, modifying and checking data are provided for the outside through a unified data access layer aiming at the characteristics of a simulation platform, so that the efficiency is improved, and the compatibility and the expandability are greatly improved.

The cloud module acquires data from the background module through an HTTPS protocol, then analyzes the data contents, transmits static and dynamic information to be displayed by the background module to a cloud map, and the Goods map API acquires the data transmitted by the background control layer and then renders pages to the foreground user interface module.

In summary, the parameterized electric vehicle pile simulation platform provided by the invention aims to research and establish interface functions and corresponding control mechanisms of an electric vehicle and a power grid by establishing an electric vehicle and a charge-discharge model, and set a distributed control model of the electric vehicle by performing corresponding simulation through the mechanisms, so that the operation efficiency of the power grid is improved as much as possible under the condition of meeting the user requirements of the electric vehicle.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims

1. The utility model provides an interactive intelligent simulation platform of electric automobile stake car of parameterization which characterized in that includes user interface module, backstage module, algorithm module, database module and high in the clouds module, wherein:

the user interface module is based on a browser and used as a GUI operation interface of the system for initial configuration setting (input) of a platform, live-action display (output) of a simulation process and drawing (output) of a related data result;

the background module is based on Java and used as a server to provide access and is responsible for processing, calculating and maintaining various instances and attributes and methods thereof;

the algorithm module parameterizes various data of the electric automobile, inputs simulation parameters and outputs simulation results;

the cloud module is used for performing transmission among modules through a Json data format, the communication protocol is Https, and simulation of the electric automobile charging pile and the automobile is realized based on a development API (application programming interface) of a high-grade map.

2. The parameterized electric vehicle pile-car interaction intelligent simulation platform according to claim 1, wherein the user interface modules are specifically as follows: js is realized on the basis of Vue, dynamic display of the electric automobile charging pile and the automobile and real-time simulation are realized by combining with the open API of the Gade map.

3. The parameterized electric vehicle pile-vehicle interaction intelligent simulation platform according to claim 2, wherein the background modules are specifically as follows: basic information of the quantity of the electric vehicles configured by a foreground through a GUI (graphical user interface) is transmitted to a background, the background is sent to a CouchDB database for storage through an HTTP (hyper text transport protocol) communication program, the background polls the CouchDB database at short time intervals, corresponding configuration information is read from the CouchDB database after a mark position is read, an electric vehicle example is constructed according to the configuration information, an example set is stored into the CouchDB in a JSON format, and the mark position is modified; the background is a pivot module of each module and is responsible for communication of information flows, and a control layer of the background controls the flow direction of the information flows to ensure normal operation of the simulation platform.

4. The parameterized electric vehicle pile-vehicle interaction intelligent simulation platform according to claim 3, wherein the algorithm module is specifically as follows: using an electrochemical cell model, providing complete information about the electrochemical dynamics within the cell, which consists of a set of coupled Partial Differential Equations (PDEs); these equations explain how the electrochemical reactions occurring inside the cell generate and affect the potential of the cell; the basic information determines a specific point releasing rule of the electric automobile, and the specific point releasing rule is used for simulation output of the simulation system.

5. The parameterized intelligent simulation platform for electric vehicle pile-vehicle interaction according to claim 4, wherein the database module and the cloud module are specifically as follows: the friendly property of the non-relational database to various data formats is utilized, and the high customization of the API of the high-grade map is combined, so that the active objects and information of the simulation platform are enriched: the system comprises pre-configured global information, real-time statistical data, map areas, key blocks, starting points, ending points, empowerment paths, different types of charging piles and different types of electric automobiles.