Unlock instant, AI-driven research and patent intelligence for your innovation.

A power system load frequency active interference suppression method and system

A power system, active interference technology, applied in wind power generation, electrical components, circuit devices, etc., can solve problems such as inability to adapt to interconnected power systems, reduced practicability, etc., and achieve good active disturbance suppression capability and flexible parameter design.

Active Publication Date: 2020-08-18
CENT SOUTH UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under the complex and changeable operating conditions of wind farms, the practicability of this kind of fixed parameter controller is greatly reduced, and it cannot adapt to the interconnected power system with large-scale wind farms.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A power system load frequency active interference suppression method and system
  • A power system load frequency active interference suppression method and system
  • A power system load frequency active interference suppression method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The implementation of the present invention is described below through specific examples and in conjunction with the accompanying drawings, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific examples, and various modifications and changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0043] figure 1 It is a flow chart of the steps of a method for actively suppressing load frequency interference in a power system according to the present invention. like figure 1 Shown, the present invention a kind of power system load frequency active interference suppression method, comprises the following steps:

[0044] Step 101, based on the load frequency control model of the trad...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an electric power system load frequency active jamming restraining method and system, the method comprises the state space model of the electric power system of the controlled object containing the wind farm power system is established based on load frequency control model of tradition power system; based on equivalent input jamming mind, the output effects based on the internal model adopted by the controlled object, the state feedback controller, the full-dimensional state observer and the disturbance estimator to the load disturbance with the power system and random fluctuation of wind speed are estimated, and is mapped to the input end of the power system, and is compensated for the disturbance in reverse, the fluctuation of the system frequency in reasonable range is maintained, at last the stability is reached.

Description

technical field [0001] The invention relates to power system load frequency control technology, in particular to a load frequency active interference suppression method and system for an interconnected power system including large-scale wind farms. Background technique [0002] In response to the increase in energy demand and the deterioration of the environment, my country has vigorously developed clean and renewable energy, and the penetration rate of wind energy in the power system has increased significantly. However, due to the random fluctuation of wind power itself, the weakness of the grid structure in the wind power development area and the unreasonable development mode, the frequency stability of the power system is facing greater challenges. As the mainstream models of wind farms, double-fed asynchronous wind turbines and permanent magnet synchronous wind turbines are decoupled from the frequency relationship of the power system, which directly leads to the reduct...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38H02J3/24
CPCH02J3/24H02J3/386Y02E10/76
Inventor 刘芳张文丹李勇吴敏佘锦华
Owner CENT SOUTH UNIV