An Information Flow Modeling Method for Grid Energy Management System

A technology of energy management system and modeling method, which is applied in the field of power system analysis and evaluation, and can solve problems such as lack of quantitative analysis, inability to use theoretical analysis, and large amount of calculation
CN107947169BActive Publication Date: 2020-01-10TSINGHUA UNIV +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TSINGHUA UNIV
Publication Date
2020-01-10

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Abstract

The invention relates to an information flow modeling method for a power grid energy management system, which belongs to the technical field of power system analysis and evaluation. The method comprises the steps that the key factor information flow of power information-physical coupling is extracted as the analysis target; input and output information of each module in the actual system are abstracted as information nodes respectively, and the function of each module is modeled as an information branch; and the information flow model of the energy management system is designed based on the information flow mapping of the graph theory. According to the invention, the method extracts the core characteristics of the information-physical coupling between a power system and the energy management system; theoretical modeling of the power grid energy management system is realized; and based on the model, the influence of information disturbance on control variables can be analyzed, which provides a theoretical support for evaluation and optimization of the energy management system in future.
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Description

technical field

[0001] The invention relates to an information flow modeling method of a grid energy management system, belonging to the technical field of power system analysis and evaluation. Background technique

[0002] With the development of smart grid and energy Internet, the power system and its control system together constitute a typical cyber-physical system, of which the energy management system (EMS, Energy Management System) is a typical example. The system covers real-time perception of wide-area information (RTU / PMU), information transmission (power carrier / optical network, various protocol forms), information processing (bad data identification / state estimation), information decision-making (power flow analysis / safety analysis / optimization calculation), closed-loop control (AGC / AVC), etc., cover thousands of kilometers in space, milliseconds to hours in time, and take into account various requirements such as safety, quality and economy in terms of goals. ...

Claims

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