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Grid CPS (cyber-physical system) interactive modeling method

A technology of cyber-physical fusion and physical system, applied in the field of interactive modeling of power grid cyber-physical fusion system, can solve the problem of not being able to clearly describe the logical relationship and interaction mechanism of information flow and energy flow, and unable to meet the actual needs of power system analysis and control And other issues

Inactive Publication Date: 2017-01-11
INST OF INFORMATION ENG CAS
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Problems solved by technology

[0004] Generally speaking, domestic research on industrial systems, especially CPS in the power field, has not yet formed a scale. Although some methods and technologies have been disclosed, the current research results focus on explaining the nature and characteristics of CPS from a macro perspective, and cannot clearly describe The logical relationship and interaction mechanism between information flow and energy flow cannot meet the actual needs of power system analysis and control

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  • Grid CPS (cyber-physical system) interactive modeling method
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  • Grid CPS (cyber-physical system) interactive modeling method

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Embodiment Construction

[0034] The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0035] The method process of the present invention is as figure 1 As shown, the steps are:

[0036] Step 1: Establish grid CPS information-physical coupling architecture

[0037] figure 2It is the information-physical coupling structure of the power grid CPS. The power grid information system obtains various numerical information, topology data and other telemetry and telesignaling quantities of the primary system through sensors, and transmits them to the CPS control center through the Internet and wireless communication network. Combined with specific application requirements, the control center generates control commands according to the state data after multi-level processing, and the controller changes the equ...

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Abstract

The invention discloses a grid CPS (cyber-physical system) interactive modeling method. The method comprises steps: 1) according to structures of a cyber system and a physical system in a power system, a grid CPS cyber-physical coupling architecture is built, wherein the CPS cyber-physical coupling architecture describes the interactive relation between a cyber flow and an energy flow of the power system, cyber equipment sends control signals to the physical system via the cyber system, and the physical system sends a remote measurement amount and a remote communication amount to the cyber system; 2) based on the CPS cyber-physical coupling architecture, a basic element model for a CPS sub module is built; and 3) based on the CPS cyber-physical coupling architecture, the basic element model for the CPS sub module and electrical equipment in the power system are in electrical connection and logic connection, and an overall grid CPS is formed. A new framework and a technical basis are provided for optimization control and reliability analysis on the power system.

Description

technical field [0001] The invention belongs to the technical field of electrical information, and in particular relates to an interactive modeling method for a cyber-physical system (CPS) of a power grid. Background technique [0002] The smart grid highly integrates advanced measurement systems, intelligent electronic devices, and flexible control technologies, etc., and constitutes a typical cyber-physical system through the mutual coupling of the primary system and the secondary system. Although the deep integration and real-time interaction of information and physical space provide a new solution for the safe operation of the power grid, the increasing dependence between the two increases the impact of information link failure on the physical system. The 8.14 blackout in the United States and Canada and the El Paso power company blackout in the United States have fully demonstrated that information system failures will lead to cascading failures in the power system. Mi...

Claims

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Application Information

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IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 马爽徐震王利明
Owner INST OF INFORMATION ENG CAS
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