Design of a New Generation Power Grid Dispatching Automation

System based on Distributed Object Technology

Xiaolei Ma, Pengfei Duan and Yandong Yang

State Grid Xinjiang Electric Power Co., Ltd, Urumqi, China

Keywords: Distributed Technology, Power Grid Dispatching, Automation System.

Abstract: In this paper, the development of our country's power system with the actual situation, put forward our

country's power system development of new ideas. According to the development status, actual demand and

future development trend of power system, a distributed object architecture is proposed to solve the

contradiction between the complexity of power dispatching automation system and the real-time

performance of the system. The system has the characteristics of high real-time, strong software and

hardware configuration and database management, which lays a solid foundation for further improving the

operation control ability of power system.

INTRODUCTION

Object Organization is a mature new technology that

will bring a second revolution to the client/server

architecture. Prior to this, computer systems were

basically single machines, but with the development

of the Internet, there was a client/server computing

service model, with multiple clients, you can share

resources like database servers and print servers.

With the development of Internet, many software

have to work under the condition of network

products, hardware platform and network protocol

provided by different manufacturers. In this context,

the limitations of the client/server model emerge,

and middleware emerges. Middleware is a common

service between operating system and application

software. Its main function is to shield the difference

of network hardware platform and the heterogeneity

of operating system and network protocol, the

application software can run smoothly on different

platforms. At the same time, middleware plays an

important role in load balance, connection

management, debugging and so on, which greatly

improves the application performance and meets the

important business requirements. At this stage,

however, the client requests the service and the

server provides the service, and the two are not

exactly symmetrical (Wu Lijun., 2019). With the

development of OOP technology, distributed OOP

technology comes into being. An important concept

in distributed object technology is the concept of

components. Components can operate across

platforms, networks, languages, applications, tools,

and hardware. The development of object-oriented

technology will not deviate from the development

track of other technologies. Before any technology

becomes mature, it has to go through the setting of a

technology/industry standard, distributed Object-

oriented technologies, such as Microsoft's“Object

Component Model”, are in the process of developing

industry standards. With the release of CORBA 1.0

standard, Distributed Object Computing has entered

a new era. CORBA is an object-oriented method,

which provides an object-oriented model, a

reference model (OMG Reference Model) and its

corresponding framework for object-oriented

management. On this basis, an object-oriented

modeling method is proposed. A distributed

computing environment based on OOP technology

was proposed to realize the functions of resource

sharing, code reuse, portability and interoperation

based on OOP technology. CORBA uses the ORG

mechanism to provide a basic mechanism for the

activation of remote objects, regardless of the

platform and technology used to implement them. In

addition, CORBA also provides a set of object

services, such as: Name Service, event service,

transaction service, permanent object service and so

on. It will provide strong support for the

development of distributed applications, and will be

extended to the field of scheduling automation.

Delphi, C++ Builder, j-Builder and other

development tools that support CORBA technology

224

Ma, X., Duan, P. and Yang, Y.

Design of a New Generation Power Grid Dispatching Automation System Based on Distributed Object Technology.

DOI: 10.5220/0012278200003807

Paper published under CC license (CC BY-NC-ND 4.0)

In Proceedings of the 2nd International Seminar on Artiﬁcial Intelligence, Networking and Information Technology (ANIT 2023), pages 224-227

ISBN: 978-989-758-677-4

emerge constantly, which makes the application of

CORBA technology easier, and makes the

application of CORBA technology easier.

ELECTRIC POWER SYSTEM

DISPATCHING AUTOMATION

SYSTEM DESIGN

2.1 Architecture of Power Dispatching

Automation

(1) openness. The hardware, software and algorithm

language used in the dispatching automation system

should be suitable for the mainstream environment

and standards, can support open interfaces, and

accord with industry standards.

(2) Operability. Dispatch automation system in

hardware, to strictly purchase with international and

domestic standards and quality, quantity

requirements of various types of equipment, in

software, it should be possible to integrate the data

and information in the scheduling field to build a

graph model library integration system for operation

and management in the actual work (He Zenghai,

2020).

(3) to ensure the safety and reliability of the

system. Dispatching automation system is the core

supporting system of national economy. It must have

some functions such as self-check, defense attack

and self-healing to ensure safe and stable operation.

(4) integration. Combined with the trend of

integrated construction of regulation and control, the

system modeling, data calibration, parameter

services, graphics, report forms services and other

multi-source information and services are integrated

and complementary, effectively promote

national/network/provincial integration,

provincial/local integration, and district/county

integration system construction. On this basis,

according to the regulation requirements and

technical levels of power system, a new dispatching

control system architecture is used. The system

consists of four layers: hardware, operating system,

system platform and application. In order to ensure

the normal operation of the integrated control system,

the communication equipment made in China must

be used. The operating system layer, is in Windows,

Unix and other operating systems based on the

secondary development, for the future development

to prepare. The system platform is a real-time

information platform for basic power system

dispatching and management, which provides data,

equipment and basic services for various

applications. The application layer contains most of

the functions needed by the current power system

dispatching and monitoring, and it is developed and

extended in a friendly way. The system is shown in

Figure 1.

Figure 1: Scheduling automation system.

2.2 Hardware System Architecture for

Scheduling Automation

In the future, the working mode of power grid

dispatching automation system will be to collect,

transmit and process a large amount of information

in a complex and highly automated power grid, and

to achieve system reliability and business continuity

under high demand (Hu Jun, 2020). On this basis,

the development trend of power network is

prospected. The working mode and communication

circuit of the system are designed. As shown in

Figure 2.

Figure 2: Hardware system architecture for scheduling

automation.

Its basic idea is: take the high-speed

communication network as the carrier, under the real

geographical environment, completes the distributed

storage, the computation and the dispatch to the

physical target, and all kinds of resources will be

Design of a New Generation Power Grid Dispatching Automation System Based on Distributed Object Technology

225

integrated into a dynamic, accurate, scalable,

scalable control system, forming a“P2P” control

center, so that it becomes the user's terminal and

service network. When the system hardware system

is a distributed structure, the state data of the electric

power system in each level of the regulating center

will be transmitted to the integrated pre-processing

system of the corresponding level of the regulating

center, the pre-processing system of the regulating

center at all levels is responsible for the

communication between the storage area and the

server of the automatic control system at all levels.

At this level to perform the corresponding

application business, the required business resources

by the next level of control center request, and then

transferred to this level. At the same time, the

dispatching automation system at all levels should

give strict feedback to the dispatching center of the

higher level, and give feedback to the operation of

the power grid (

Zhang Zhiyuan., 2021

). Compared

with the traditional architecture, the main features of

the distributed scheduling automation hardware

system are as follows: 1, the data information of

each control center can be shared transparently,

which improves the integration ability of multi-

source information in complex power network. 2

open and flexible scalability, the computing

resources, storage resources, etc. in this kind of

architecture can control the in and out of the system

to a certain extent without affecting the normal

operation of other infrastructure. 3 self-organization,

through the intelligent management of the

scheduling automation support system, the

regulating system at all levels can work together and

form a flexible network.

2.3 The Operation Mode of Scheduling

Automation Management

The various phases of the automatic scheduling

system shown in Figure 3 can be divided into three

levels of operational models. In the security

protection system, it is mainly constructed by the

security protection and authority management

application of the scheduling support platform at all

levels, it should be included in all kinds of means

and tools such as firewall, data encryption, digital

signature in data communication network, it is also

the only access to the system for staff. The

dispatching data network links up all levels, the real-

time monitoring and early warning of the

dispatching automation platform, the dispatching

plan and the safety school, and the checking of the

two application areas, to make the distributed

architecture logically and functionally an integrated

and organized scheduling system

[

Ding Xinzhong., 2019

]

The implication of regulation mapping is that there

is an interactive relationship between dispatching

automation system and physical power grid. In this

process, data information and control instructions

can be transmitted not only vertically, but also

laterally, and between different scheduling systems,

it is a logical link between the platform and the

primary and secondary equipment of the power grid.

Figure 3: Operation Mode of power grid dispatching

automation management.

Because CORBA technology can seamlessly

connect multiple target systems, it provides an

interactive capability for applications on different

computers in a heterogeneous distributed

environment, therefore, the cooperation performance

between remote workstation software and

scheduling host software realized by CORBA

technology is better. During the run time, the object

requirement provided by the distributed object soft

bus is used as the media to dynamically direct the

connection with the scheduling system according to

the real-time requirement. The system can

coordinate better than pure data communication.

CONCLUSION

With the development of society and the innovation

of Technology, the construction of power system

can not stand still, the operation and management of

power system become more and more complex.

Power grid dispatching automation is a large-scale,

complex, system systems engineering, its technical

fields, multi-disciplinary cross-cutting are very

strong. In the aspect of dispatching automation

system design, the wide area system architecture

with distributed architecture can adapt to the

operation and management of large power grid

under the integration of regulation and control,

which will effectively improve the level of power

grid dispatching technology, we will support power

ANIT 2023 - The International Seminar on Artiﬁcial Intelligence, Networking and Information Technology

226

grid construction and economic and social

development, and help power grid reform move

forward. In the aspect of dispatching automation, we

should not only digest and perfect the existing

regulation technology and mode, but also achieve

technical breakthrough and practical application in

key fields. In general, the construction of power grid

dispatching automation has a great development

space in the future, but also has a good application

prospects.

ACKNOWLEDGEMENTS

This work was supported by New generation of

dispatching technology support system.

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