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An optimization method of damping controller coordination parameters based on steepest descent method

A technology of damping controller and steepest descent method, applied in the field of power system, can solve the problems of effective interval oscillation suppression effect, etc., to achieve the effect of improving the stability of small disturbance, strong search ability and improving system stability

Active Publication Date: 2022-08-02
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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But the inhibitory effect on interval oscillation is effective

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  • An optimization method of damping controller coordination parameters based on steepest descent method
  • An optimization method of damping controller coordination parameters based on steepest descent method
  • An optimization method of damping controller coordination parameters based on steepest descent method

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[0060] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0061] figure 1 For the IEEE (Institute of Electrical and Electronics Engineers) 4-machine 2-area system diagram including wind power and photovoltaic power generation, in figure 1 On the basis of , the embodiment of the present invention provides a method for optimizing the coordination parameters of the damping controller based on the steepest descent method, and the specific steps are as follows:

[0062] S1. Connect the power sys...

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Abstract

The invention proposes a method for optimizing the coordination parameters of the damping controller based on the steepest descent method. Analyze the influence of PSS and PODC on the stability of the power system; then, construct the objective function based on the eigenvalue and the objective function based on the damping ratio, and construct a multi-objective function; then use SDA to search and optimize the multi-objective function, and get the most Finally, the optimized power system is verified by eigenvalue analysis and dynamic time domain simulation method, and the optimal PSS and PODC parameters can improve the small disturbance stability of the power system. The invention adopts SDA to optimize the coordination parameters of PSS and PODC, so as to provide extra sufficient damping for the low frequency oscillation existing in the power system, and improve the stability of the system with small disturbances.

Description

technical field [0001] The invention relates to the technical field of power systems, in particular to a method for optimizing the coordination parameters of a damping controller based on the steepest descent method. Background technique [0002] In the face of the increasingly serious environmental pollution and energy shortage crisis in the world, the development and utilization of renewable energy has received great attention from governments around the world. Wind energy and solar energy naturally have strong complementarity in time and region. The effective combination of the two can make up for the lack of energy utilization of their separate power generation, improve the reliability and stability of power supply, and enhance the grid’s ability to support renewable energy. energy absorption capacity. However, with the integration of large-scale wind energy and photovoltaic energy into the traditional power system, the increase of intermittency, randomness and uncertai...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38H02J3/24
CPCH02J3/24
Inventor 和萍武小鹏赵琛杨海晶申润杰祁盼李钊方棋元郑明明
Owner ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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