WO2022110435A1

WO2022110435A1 - Method, system and device for constructing power service simulation environment, and storage medium

Info

Publication number: WO2022110435A1
Application number: PCT/CN2020/139141
Authority: WO
Inventors: 朱朝阳; 周亮; 朱亚运; 缪思薇; 张晓娟; 韩丽芳; 应欢; 王海翔
Original assignee: 中国电力科学研究院有限公司
Priority date: 2020-11-27
Filing date: 2020-12-24
Publication date: 2022-06-02
Also published as: CN112153165A; CN112153165B

Abstract

Disclosed are a method, system and device for constructing a power service simulation environment, and a storage medium. The method for constructing a power service simulation environment comprises: according to a requirement for a power service simulation environment and from an image model library, calling an image model corresponding to the requirement, so as to establish a simulation image model instance of a power service; according to a mapping relationship between an image model and a language model and in correspondence with the image model in the simulation image model instance, calling a language model, which corresponds to the image model, in a language model library, so as to generate a simulation language model instance; translating the language model in the simulation language model instance into a system configuration file by means of semantic translation; according to the system configuration file, generating an abstract component model under a constraint condition; obtaining, by means of functional analysis, software and hardware of a power underlying device corresponding to the abstract component model; and configuring the software and hardware of the power underlying device according to the requirement for the power service simulation environment, so as to construct the power service simulation environment.

Description

Method, system, device and storage medium for constructing power service simulation environment

This application claims the priority of the Chinese patent application with application number 202011351605.7 filed with the China Patent Office on November 27, 2020, the entire contents of which are incorporated herein by reference.

technical field

The present application relates to the field of electric power simulation environment construction, for example, to a method, system, device and storage medium for electric power service simulation environment construction.

Background technique

The degree of automation of the power grid has been greatly improved. With the large-scale development of renewable energy, the entire power system is also developing in the direction of automation and intelligence. At the same time, the scale of the power grid is increasing, the voltage level is gradually increasing, the functions of the power system are becoming more complex and diverse, and the types and functions of intelligent electronic devices are also increasing. , reliability and stability have a certain impact, so simulation analysis has become the main means of power grid research.

However, in the power system simulation, the modeling process is very complicated because each simulation device needs to be configured and controlled individually. At the same time, the intelligence of the power grid depends on the intelligence of intelligent electronic devices, which not only have many types and complex functions, but also have more and more diverse access methods and control forms, which makes intelligent electronic devices (IEDs). The difficulty of configuration and access is increased. Therefore, software-defined related technologies are introduced into the power grid, and corresponding improvements are made on this basis to achieve centralized control of simulated equipment.

Although there are studies on the application of software-defined technology to power grids, there are still some limitations in software-defined technology. For example, the northbound interface contains a large number of interpretation fields, which will reduce the transmission efficiency, and it is difficult to provide effective high-level encapsulation for the asset layer resources of the power system equipment. Therefore, related problems such as high degree of manual operation, difficult automatic configuration, and low operation efficiency are caused. In addition, related technologies are mainly oriented to power system simulation, and the simulation of information communication and power industrial control systems is insufficient, and cannot completely and accurately reflect the operation process of the whole environment of power network simulation verification.

SUMMARY OF THE INVENTION

The present application provides a method, system, equipment and storage medium for constructing a power service simulation environment, with reasonable design and high operation efficiency, and the actual power equipment components and communication equipment components can be flexibly invoked, spliced and automatically configured, and the simulation environment of different power service scenarios can be constructed. flexible.

A method for constructing a power service simulation environment is provided, including:

According to the requirements of the power service simulation environment, the image model corresponding to the requirements is called from the image model library to establish a simulation image model instance of the power service;

According to the mapping relationship between the image model and the language model, corresponding to the image model in the simulation image model instance, call the language model corresponding to the image model in the language model library to generate the simulation language model instance;

Convert the language model in the simulation language model instance into a system configuration file through semantic conversion; generate an abstract component model under constraints according to the system configuration file; obtain the power bottom layer corresponding to the abstract component model through functional analysis the hardware and software of the device;

According to the requirements of the power service simulation environment, the software and hardware of the power bottom layer device are configured to construct the power service simulation environment.

Optionally, the language model library is obtained in the following manner:

Discover the underlying power equipment and classify them according to communication equipment and power equipment;

A communication capability model library and a power equipment model library are established according to the classification results, and the communication capability model library and the power equipment model library are combined into the language model library.

Optionally, the language model library is a set of communication capability models and power equipment models represented by a modeling language.

Optionally, according to the system configuration file, generate an abstract component model under constraints, including:

According to the device information of the discovered device and the predefined constraints, the system configuration file is parsed to generate the abstract component model.

Optionally, the image model library is obtained in the following manner:

Based on the model-driven, the mapping relationship between the language model and the predefined image model of the power underlying equipment is established to form the image model library.

Also provided is a power service simulation environment construction system, including:

The application definition layer is set to call the image model corresponding to the demand from the image model library to establish a simulation image model instance of the power service according to the requirements of the power service simulation environment;

The northbound interface is configured to, according to the mapping relationship between the image model and the language model, correspond to the image model in the simulation image model instance, and call the language model corresponding to the image model in the language model library to generate the simulation language model instance;

The operation control layer is configured to convert the language model in the simulation language model instance into a system configuration file through semantic conversion; generate an abstract component model under constraints according to the system configuration file; obtain the abstraction through functional analysis The software and hardware of the power underlying equipment corresponding to the component model;

The power bottom layer device layer is configured to configure the software and hardware of the power bottom layer device according to the requirements of the power business simulation environment to construct the power business simulation environment.

Optionally, the application definition layer is further configured to establish a mapping relationship between the language model and the predefined image model of the underlying power equipment based on model driving to form the image model library.

Optionally, the operation control layer is further configured to discover the power bottom layer equipment and classify it according to the communication equipment and the power equipment;

The operation control layer is set to generate an abstract component model under constraints according to the system configuration file in the following manner: parse the system configuration file according to the device information of the discovered device and the predefined constraints, and generate the Abstract component model.

Optionally, the northbound interface is further configured to establish a communication capability model library and a power equipment model library according to the classification result, and combine the communication capability model library and the power equipment model library into the language model library.

Optionally, the power bottom layer device layer is further configured to automatically discover the communication device and the power device through a communication protocol plug-in, and upload the description file of the device to the operation control layer.

Also provided is a power service simulation environment construction device, including:

memory, arranged to store computer programs;

The processor is configured to implement the method for constructing a power service simulation environment according to any one of the above when executing the computer program.

A computer storage medium is also provided, where a computer program is stored on the computer storage medium, and when the computer program is executed by a processor, the method for constructing a power service simulation environment according to any one of the above is implemented.

Description of drawings

1 is a framework diagram of a software-defined power grid simulation provided by an embodiment of the present application;

FIG. 2 is a structural principle block diagram of an automatic networking orchestration system provided by an embodiment of the present application;

3 is a structural principle block diagram of a simulation controller provided by an embodiment of the present application;

4 is a flowchart of a self-discovery and self-configuration provided by an embodiment of the present application;

5 is a structural principle block diagram of an automatic modeling process provided by an embodiment of the present application;

6 is a schematic structural block diagram of a model-driven northbound interface and application layer interaction provided by an embodiment of the present application;

7 is a flowchart of a method for constructing a power service simulation environment provided by an embodiment of the present application;

FIG. 8 is a structural diagram of a power service simulation environment construction system provided by an embodiment of the present application;

FIG. 9 is a structural diagram of a device for constructing a power service simulation environment provided by an embodiment of the present application.

Detailed ways

The present application will be described below with reference to specific embodiments.

This application decomposes the entire simulation framework for power services into an application definition layer and an operation control layer by means of a software-defined method through a method for constructing a power service simulation environment based on a software-defined grid framework, aiming at the characteristics of tight coupling between power equipment and power systems. There are three layers of power bottom device layer and power bottom device layer to realize automatic discovery of power bottom device layer devices and automatic configuration of power business scenarios. It can solve the related problems of high degree of manual operation, difficult automatic configuration, and low operation efficiency in the process of power network security simulation. Through the rapid construction method of simulation environment, it can realize flexible configuration and control of software and hardware resources of multiple types of power business environment, and can support network The verification work of the security protection system supports the training of the technical personnel of the network security supplier, and conducts the external evaluation of the network security protection scheme.

The present application provides a method for rapidly constructing a power simulation environment. The method includes a software-defined power grid simulation framework and an actual modeling process under the framework. The software-defined power grid simulation framework proposed in the present application combines software The idea of the definition is applied to the rapid construction of the simulation environment of power business, so as to achieve the purpose of rapid construction of the simulation environment of the power business scene. As shown in Figure 1, the simulation framework structure and modeling steps are as follows.

The software-defined grid simulation framework includes:

1. The application definition layer includes a variety of application models for grid functions and business services customized and constructed by users, including the power business simulation model for providing power business image model instances and the image simulation model library for providing image model libraries. .

2. The main body of the operation control layer is composed of a networking orchestration system. The networking orchestration system is the core and center of the entire software-defined power grid. It collects the device status data in the power grid, decomposes the upper-layer customized applications, and distributes control instructions to the physical device layer. equipment. The network orchestration system includes two parts: abstract component model and simulation controller.

2.1. The abstract component model is a model that can be understood by the simulation controller, which is transformed by the networking orchestration system. The northbound interface extracts network functional components, power equipment components and component connection models (used to represent the connection relationship between equipment components) in the power business image model, and generates power by calling the mapping relationship between the image model library and the language model library. Business language model (a model constructed by a programming language for the power business image model). The operation control layer generates the corresponding system configuration file according to the power business language model (the expression of the power business language model in the operation control layer). As shown in Figure 2, in the networking orchestration system, the system configuration file is parsed according to the predefined constraints, and the device information generated by the device self-discovery technology is invoked to generate an abstract component model that the simulation controller can understand.

2.2. The simulation controller is responsible for the interaction with the power equipment, completes the automatic discovery, automatic configuration, action control, security control and other functions of the primary equipment of the power grid and the secondary equipment of the power grid, and at the same time realizes the configuration of the communication equipment and the optimization of the communication network. As shown in Figure 3, the simulation controller is a centralized router for logical power and information transmission and processing. The simulation controller adopts a variety of controller integration methods to achieve precise control of different objects in the simulation model; the decomposition and mapping of components are realized at the interface, and the integration of various functions is carried out through the controller at the control layer. The service sub-layer includes software-defined network (Software Defined Network, SDN) controllers to realize service control, implement device discovery and resource control and other kernel operations in the kernel sub-layer; the system is supported through the driver layer.

3. The power bottom device layer is also the power virtual/real device layer in the system, including power devices and communication devices. Power equipment includes primary power equipment and secondary power equipment (such as protection equipment and automation equipment) with intelligent capabilities in the power grid, and communication equipment includes network switches. Both types of devices are at the heart of software-defined grids.

4. Connect the northbound interface between the application definition layer and the operation control layer, and set the application definition layer to obtain power grid status data and the operation control layer to decompose the upper-layer customized application; wherein, the northbound interface is implemented by the application program interface.

The model-driven northbound interface technology proposed in this application is used to realize fast mapping between the image model of the power application layer and the language model in the northbound interface.

5. As shown in Figure 4, connect the southbound interface between the operation control layer and the power bottom layer equipment layer, and set the operation control layer to obtain the information of the bottom layer equipment and configure the bottom layer equipment at the same time. The southbound interface is mainly set to realize automatic discovery and automatic configuration of power equipment and communication equipment, and the southbound interface is realized by the general protocol plug-in. Universal Plug and Play, UPnP) protocol plug-ins, and OpenFlow protocol plug-ins from the power bottom device layer to the operation control layer.

Under the described power grid simulation framework, as shown in FIG. 5 , rapid simulation modeling can be performed on related power services. The actual modeling process of the power business is described as follows:

S1. Through the relevant communication protocol plug-ins, automatically discover the communication devices and power devices of the power bottom device layer, and upload the device description file to the simulation controller of the operation control layer.

S2. The simulation controller classifies the discovered devices according to communication devices and power devices, and uploads the classified devices to the northbound interface. In the northbound interface, according to the classification of communication equipment and power equipment completed by the simulation controller, a communication capability model library and a power equipment model library are established, and the two model libraries are combined into a language model library (a multi-type equipment model represented by a modeling language). collection).

S3. In the application definition layer, the image model of the related device is predefined, and after the language model library is established on the northbound interface, as shown in Figure 6, the mapping relationship between the image model and the language model is established based on the model-driven idea, and the corresponding Image model library.

S4. After completing the construction of the image model library, the user invokes the corresponding image model from the image model library according to the corresponding power service to establish a simulation image model instance of the power service.

S5. As shown in Figure 6, the simulation image model of the power service is parsed in the northbound interface, and according to the previously established mapping relationship between the image model and the language model, the language model in the language model library is called, and the image model instance is called The language model instance is generated based on the connection relationship in .

S6. In the operation control layer, semantic conversion is performed on the language model instance, the language model is converted into a system configuration file, and the networking orchestration system generates an abstract component model according to the system configuration file. The simulation controller uniformly receives all the component models, calls different sub-controllers to perform functional analysis on the corresponding component models, determines the software and hardware devices of the power bottom layer device layer corresponding to different models, and then analyzes the power bottom layer device layer according to the requirements. The corresponding equipment is automatically configured to realize the physical modeling of the power business model defined by the application definition layer.

The rapid construction process of the simulation environment proposed in this application realizes the rapid construction of a power business simulation environment based on the image simulation model constructed by the application definition layer on the basis of automatic discovery and automatic configuration of the underlying equipment.

The operation control layer is generally composed of a networking orchestration system. The networking orchestration system is the core and backbone of the entire software-defined power grid. It collects power grid status data, decomposes upper-layer customized applications, and distributes control instructions to devices at the physical device layer. The network orchestration system includes two parts: abstract component model and simulation controller. The automatic networking orchestration system proposed in this application and the simulation controller it includes are at the core of the software-defined power grid simulation framework. On the one hand, the simulation controller is used to perform device discovery and extraction of device description files for the underlying device; on the other hand, the image model instance of the simulation model constructed by the application definition layer is mapped to the northbound interface to generate the corresponding language model instance; simulation control The compiler parses the generated language model instance, obtains the requirements of the application definition layer, and generates instance configuration files of related devices according to the requirements, and configures the corresponding devices.

FIG. 7 is a flowchart of a method for constructing a power service simulation environment provided by an embodiment of the present application. As shown in Figure 7, the method includes:

S10. According to the requirements of the power service simulation environment, call the corresponding image model from the image model library to establish a simulation image model instance of the power service.

S20. According to the mapping relationship between the image model and the language model, corresponding to the image model in the simulated image model instance, call the corresponding language model in the language model library to generate the simulated language model instance.

S30. Convert the language model in the simulated language model instance into a system configuration file through semantic conversion; generate an abstract component model under constraints according to the system configuration file; obtain the software and hardware of the underlying power equipment corresponding to the abstract component model through functional analysis .

S40. According to the requirements of the power business simulation environment, configure the software and hardware of the corresponding power bottom layer equipment, and construct the power business simulation environment.

FIG. 8 is a structural diagram of a system for constructing a power service simulation environment provided by an embodiment of the present application. As shown in Figure 8, the system includes:

The application definition layer 10 is set to call the corresponding image model from the image model library to establish a simulation image model instance of the power service according to the requirements of the power service simulation environment.

The northbound interface 20 is set to correspond to the image model in the simulated image model instance according to the mapping relationship between the image model and the language model, and call the corresponding language model in the language model library to generate the simulated language model instance.

The operation control layer 30 is configured to convert the language model in the simulation language model instance into a system configuration file through semantic conversion; generate an abstract component model under constraints according to the system configuration file; obtain the power corresponding to the abstract component model through functional analysis The hardware and software of the underlying device.

The power bottom layer device layer 40 is configured to configure the software and hardware of the corresponding power bottom layer equipment according to the requirements of the power business simulation environment to construct the power business simulation environment.

In order to solve the problem of rapid construction of a network security simulation verification environment, this application proposes a method for constructing a power service simulation environment. Based on software definition, the overall simulation framework oriented to power services is designed in layers. The automatic configuration of power business scenarios realizes flexible invocation, splicing and automatic configuration of actual power equipment components and communication equipment components, and achieves the purpose of flexible construction of simulation environments for different power business scenarios. This application improves the test and verification capabilities of network security technologies and tools. Compared with related technologies, it is more advanced in terms of interactivity and convenience. Relying on this application, a panoramic environment for power network security simulation and verification can be efficiently built, and it has good results transformation applications. prospect.

The embodiment of the present application also provides a power service simulation environment construction device, as shown in FIG. 9 , including a memory 101 configured to store a computer program; and a processor 102 configured to implement the computer program in the embodiment of the present application when executing the computer program. Construction method of power business simulation environment.

Embodiments of the present application further provide a computer storage medium storing a computer program, and when the computer program is executed by a processor, the method for constructing a power service simulation environment in the embodiments of the present application is implemented.

Aiming at the characteristics of tight coupling between power bottom equipment and power system, this application separates the control plane and data plane of network equipment in the system based on terminal and protocol emulation, combined with the idea of software definition, and builds an open network through logical centralized control. , Programmable network architecture, to achieve the purpose of rapid construction of power network simulation environment. In order to solve the problems of complicated modeling process and long design and deployment time of business models in the modeling method, this application realizes the flexibility of actual power equipment components and communication equipment components through the automatic networking orchestration system and simulation controller at the operation control layer. Call, splicing and automatic configuration, and then realize the flexible deployment of power physics and virtual simulation equipment and the flexible construction of power communication network. Aiming at the problems of many types of intelligent electronic devices, complex functions and cumbersome configuration, the present application uses self-discovery and self-configuration technology to discover underlying devices and generate corresponding device models; The power business language model model is sent to the simulation controller, and the simulation controller automatically configures the underlying equipment according to the model to complete the equipment configuration process. In view of the low transmission efficiency of the northbound interface, this application designs a model-driven northbound interface, which improves the interaction efficiency between the application definition layer and the operation control layer through the mapping function between the image model and the language model of the northbound interface, and also improves the Modeling scalability.

Embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application may employ one or more computer-usable storage media (including but not limited to magnetic disk storage, Compact Disk-Read Only Memory, CD-ROM), optical storage media, with computer-usable program code embodied therein. etc.) in the form of a computer program product implemented thereon.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It will be understood that each process and/or block in the flowchart illustrations and/or block diagrams, and combinations of processes and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce an arrangement Means for implementing the functions specified in one or more of the flowcharts and/or one or more blocks of the block diagrams.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions The apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

These computer program instructions can also be loaded on a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process such that The instructions provide steps for implementing the functions specified in the flow or blocks of the flowcharts and/or the block or blocks of the block diagrams.

Claims

A method for constructing a power service simulation environment, comprising:

According to the requirements of the power service simulation environment, the image model corresponding to the requirements is called from the image model library to establish a simulation image model instance of the power service;

According to the mapping relationship between the image model and the language model, corresponding to the image model in the simulation image model instance, call the language model corresponding to the image model in the language model library to generate the simulation language model instance;

Convert the language model in the simulation language model instance into a system configuration file through semantic conversion; generate an abstract component model under constraints according to the system configuration file; obtain the power bottom layer corresponding to the abstract component model through functional analysis the hardware and software of the device;

According to the requirements of the power service simulation environment, the software and hardware of the power bottom layer device are configured to construct the power service simulation environment.
The method of claim 1, wherein the language model library is obtained by:

Discover the underlying power equipment and classify them according to communication equipment and power equipment;

A communication capability model library and a power equipment model library are established according to the classification results, and the communication capability model library and the power equipment model library are combined into the language model library.
The method of claim 2, wherein the language model library is a collection of communication capability models and power equipment models represented by a modeling language.
The method according to claim 2, wherein the generating an abstract component model under constraints according to the system configuration file comprises:

According to the device information of the discovered device and the predefined constraints, the system configuration file is parsed to generate the abstract component model.
The method according to claim 1, wherein the image model library is obtained by:

Based on the model-driven, the mapping relationship between the language model and the predefined image model of the power underlying equipment is established to form the image model library.
An electric power business simulation environment construction system, comprising:

The application definition layer is set to call the image model corresponding to the demand from the image model library to establish a simulation image model instance of the power service according to the requirements of the power service simulation environment;

The northbound interface is configured to, according to the mapping relationship between the image model and the language model, correspond to the image model in the simulation image model instance, and call the language model corresponding to the image model in the language model library to generate the simulation language model instance;

The operation control layer is configured to convert the language model in the simulation language model instance into a system configuration file through semantic conversion; generate an abstract component model under constraints according to the system configuration file; obtain the abstraction through functional analysis The software and hardware of the power underlying equipment corresponding to the component model;

The power bottom layer device layer is configured to configure the software and hardware of the power bottom layer device according to the requirements of the power business simulation environment to construct the power business simulation environment.
The system according to claim 6, wherein the application definition layer is further configured to establish a mapping relationship between the language model and a predefined image model of the power underlying equipment based on model driving to form the image model library.
The system according to claim 6, wherein, the operation control layer is further configured to discover power underlying devices and classify them according to communication devices and power devices;

The operation control layer is configured to generate an abstract component model under constraints according to the system configuration file in the following manner: parse the system configuration file according to the device information of the discovered device and the predefined constraints, and generate the Abstract component model.
The system according to claim 8, wherein the northbound interface is further configured to establish a communication capability model library and a power equipment model library according to the classification result, and combine the communication capability model library and the power equipment model library into the Describe the language model library.
The system according to claim 6, wherein the power bottom layer device layer is further configured to automatically discover the communication device and the power device through a communication protocol plug-in, and upload the description file of the device to the operation control layer.
A power service simulation environment construction device, comprising:

memory, arranged to store computer programs;

The processor is configured to implement the method for constructing a power service simulation environment according to any one of claims 1 to 5 when executing the computer program.
A computer storage medium storing a computer program, when the computer program is executed by a processor, the method for constructing a power service simulation environment according to any one of claims 1 to 5 is implemented.