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Physical layer optimization simulation method and system for power grid information physical system

A cyber-physical system and physical layer technology, which is applied in the field of power grid cyber-physical system physical layer optimization simulation, can solve the problems that the simulation technology cannot guarantee the simulation speed, and achieve the effects of simplifying the model, improving the simulation speed, and optimizing the modeling method

Pending Publication Date: 2019-10-22
CHINA ELECTRIC POWER RES INST +3
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  • Application Information

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Problems solved by technology

[0003] The power grid CPS system integrates the power system model and the information communication network related model. The scale is huge. The traditional simulation technology can no longer guarantee a high enough simulation speed. It is necessary to study new modeling technology on the physical side to improve the calculation speed of the power system simulation.

Method used

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  • Physical layer optimization simulation method and system for power grid information physical system
  • Physical layer optimization simulation method and system for power grid information physical system
  • Physical layer optimization simulation method and system for power grid information physical system

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Embodiment 1

[0068] A flow diagram of a physical layer optimization simulation method for a power grid cyber-physical system provided by the present invention is as follows figure 1 shown, including:

[0069] Step 1: collect the operating parameters of the power grid;

[0070] Step 2: Initialize the pre-established physical layer simulation model of the power grid cyber-physical system based on the operating parameters;

[0071] Step 3: Based on the initialized physical layer simulation model of the cyber-physical system of the power grid, the time-varying phasor method is used for simulation;

[0072] The simulation model of the physical layer of the cyber-physical system of the power grid includes the AC-DC converter model of the power electronic interface equipment established by the mean value model technology.

[0073] Specifically, the technical framework of a physical layer optimization simulation method for power grid cyber-physical system is as follows: figure 2 shown, includi...

Embodiment 2

[0120] Based on the same inventive concept, the present invention also provides a physical layer optimization simulation system of the cyber-physical system of the power grid. Since the principles of these devices to solve technical problems are similar to the optimization simulation method of the physical layer of the cyber-physical system of the power grid, the repetitions will not be repeated.

[0121] The basic structure diagram of the system is shown in Figure 5 As shown, including: data acquisition module, initialization module and simulation calculation module;

[0122] Among them, the data collection module is used to collect the operating parameters of the power grid;

[0123] The initialization module is used to initialize the physical layer simulation model of the power grid cyber-physical system established in advance based on the operation parameters;

[0124] The simulation calculation module is used for performing simulation based on the physical layer simulat...

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Abstract

The invention provides a physical layer optimization simulation method and system for a power grid information physical system. The method comprises: collecting operation parameters of a power grid; initializing a pre-established power grid information physical system physical layer simulation model based on the operation parameters; simulating by adopting a time-varying phasor method based on theinitialized power grid information physical system physical layer simulation model; wherein the power grid information physical system physical layer simulation model comprises a power electronic interface equipment alternating-current and direct-current converter model established by adopting a mean value model technology. According to the method and the system, a mean value model method is provided for a power electronic interface equipment alternating current-direct current converter with a complex model to simplify the model, a physical layer modeling method is optimized, a time-varying phasor simulation method is also adopted to carry out large-scale power transmission and distribution hybrid network time-varying phasor simulation, and the physical side simulation speed is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of power grid cyber-physical systems, and in particular relates to a physical layer optimization simulation method and system of power grid cyber-physical systems. Background technique [0002] In recent years, with the continuous development of smart grid construction, the degree of automation of the power system has increased rapidly, and the number of grid sensors, information network scale, and number of decision-making units have all increased significantly. In addition, the promotion of the Energy Internet has made more and more external information directly or indirectly affect the power system control decision-making through various business channels, and the interaction mechanism between the power network and the information network is becoming increasingly complex. A large number of highly integrated advanced measurement systems, data acquisition equipment, computing equipment and embedded flexible...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 康田园刘科研盛万兴孟晓丽梁英叶学顺罗海荣田蓓白牧可贾东梨董伟杰胡丽娟何开元
Owner CHINA ELECTRIC POWER RES INST
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