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
CN111478364BActive Publication Date: 2022-08-02ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
Publication Date
2022-08-02

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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.
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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...

Claims

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