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Control parameter coordination method for interconnection system of wind driven generator and synchronous generator

A technology for synchronous generators and wind turbines, applied in wind power generation, electrical components, circuit devices, etc., can solve problems such as threats to system operation stability, reduce complexity and storage capacity, eliminate dynamic interaction, and quickly and accurately adjust Effect

Pending Publication Date: 2021-09-24
STATE GRID GASU ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] As the grid-connected scale of wind turbines continues to increase, the dynamic interaction between the wind farm and the external power system has a more significant impact on the stability of the entire power system. The dynamic interaction between the control link and the synchronous generators in the system and other wind farms creates a greater threat to the stability of the entire system operation

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  • Control parameter coordination method for interconnection system of wind driven generator and synchronous generator
  • Control parameter coordination method for interconnection system of wind driven generator and synchronous generator
  • Control parameter coordination method for interconnection system of wind driven generator and synchronous generator

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Embodiment Construction

[0031] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0032] A method for coordinating control parameters of an interconnected system between a wind power generator and a synchronous generator, including:

[0033] Step 1: Through linearization at the steady-state operating point, establish a linearized state-space model of each wind farm and synchronous generator in the power system to be studied;

[0034] Step 2: Calculate the state space matrix of the closed-loop system and its eige...

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Abstract

The invention discloses a control parameter coordination method for an interconnection system of a wind driven generator and a synchronous generator, and the method comprises the following steps of S1, building a linearization state space model of each wind power plant and the synchronous generator in a to-be-researched power system through the linearization at a steady-state operation point; S2, calculating a closed-loop interconnection system state space matrix and the indexes, such as characteristic values and participation factors of the closed-loop interconnection system state space matrix, etc., through a power system network topology structure. In order to meet the requirement for the stable operation of the power system, a dynamic interaction phenomenon needs to be eliminated, and meanwhile, the system has a certain stability margin, so that certain external interference can be resisted.

Description

technical field [0001] The invention belongs to the technical field of power and electrical engineering analysis and calculation, and in particular relates to a method for coordinating control parameters of a wind power generator and a synchronous generator interconnection system. Background technique [0002] As a new energy that can be developed on a large scale, wind energy is currently the most promising renewable energy. my country's wind energy content is extremely rich, and the development of wind power generation has been rapid in the past decade. However, the connection of a large number of wind farms will have unknown effects on the original system components, threatening the stability of the power system operation. [0003] The subsynchronous oscillation caused by the dynamic interaction between the dynamic components of the power system is a complex engineering science problem that has not been effectively solved for a long time. At present, synchronous generato...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/24H02J3/38
CPCH02J3/24H02J3/381H02J2203/20H02J2300/28Y02E10/76
Inventor 刘克权邵冲徐宏雷王耿魏博余姣刘文飞侯锐杰姬艳秋刘春李得龙张磊周昭李天寿杨勇周治伊陈仕彬郝如海张旭军牛浩明祁莹冯文韬
Owner STATE GRID GASU ELECTRIC POWER RES INST
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