Load frequency control device and method suitable for information uncertainty system

A load frequency control and adaptive control technology applied in frequency control. field

Active Publication Date: 2020-12-29
TIANJIN UNIV
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  • Load frequency control device and method suitable for information uncertainty system
  • Load frequency control device and method suitable for information uncertainty system
  • Load frequency control device and method suitable for information uncertainty system

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[0044] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0045] The invention aims at the influence of high information uncertainty on the physical state of the system under the complex multi-dimensional system environment, and the core is the load frequency self-adaptive control strategy of the information uncertain system realized in the optimization decision-making and self-adaptive control unit. Firstly, the information entropy model of the information system is established to quantify the information uncertainty of the power system. Then, the entropy value is calculated according to the system state, so as to judge the degree of uncertainty of the system. Finally, the load frequency control of the system is realized throug...

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Abstract

The invention relates to a load frequency control device suitable for an information uncertainty system, which comprises an information acquisition module, an optimization decision module and an adaptive control module. The information acquisition module is used for accessing a state signal of a communication system at the moment N into the device through sensor sampling measurement, and integrating and uploading a sampling signal to an agent node; the optimization decision module receives the information output by the information acquisition module, performs synchronous sampling conversion according to the occurrence probability measure of the random event of the communication system, analyzes the information uncertainty degree of the system through the established model of the information entropy H, and inputs the analysis result into the adaptive control module; the adaptive control module inputs a data analysis result into the adaptive control module designed based on a fuzzy rule,aiming at the probability measure representation of each quantity influencing the uncertainty of the system information, a mathematical model of information entropy is established by integrating eachquantity of time lag, packet loss and error codes of an information system, the modeling of the uncertainty of the system information is completed. A system load frequency model is established by quantizing information uncertainty, and the frequency control considering information uncertainty is realized.

Description

technical field [0001] The invention relates to a load frequency adaptive control device, in particular to a frequency control of an information uncertain system based on an adaptive fuzzy controller. Background technique [0002] A single power system analysis is based on network modeling and power flow calculations to complete various tasks such as power transmission and distribution planning, transient steady-state fault analysis, and reliability calculations. Among them, the load frequency control (Load frequency control, LFC) system realizes the mapping relationship between the input deviation and the output control quantity of the controller through the control area tie line exchange power stability, with the ICT (Information and communications technology) technology in the power system The uncertainty of information poses a serious challenge to the steady-state operation of the power system. [0003] New energy is mostly volatile and random and cannot be stored. The...

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Application Information

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IPC IPC(8): H02J3/06H02J3/24H02J13/00G06F30/20
CPCH02J3/06H02J3/241H02J13/00G06F30/20H02J2203/20
Inventor 杨挺张璐
Owner TIANJIN UNIV
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