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An oscillation suppression system and method for wind turbine parameter optimization based on modal stability domain

A stable domain, modal technology, applied in the field of wind turbine parameter optimization oscillation suppression system, can solve the problems of low efficiency, threatening the stable operation of the power grid, and poor effect.

Active Publication Date: 2021-09-28
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide a wind turbine parameter optimization oscillation suppression system and method based on the modal stability domain, which is used to solve the problem that the vibration suppression effect of the existing wind power grid-connected system is poor, the efficiency is low, and the stability of the power grid is easily threatened. run problem

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  • An oscillation suppression system and method for wind turbine parameter optimization based on modal stability domain
  • An oscillation suppression system and method for wind turbine parameter optimization based on modal stability domain
  • An oscillation suppression system and method for wind turbine parameter optimization based on modal stability domain

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Embodiment Construction

[0077] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and together with the embodiments of the present invention are used to explain the principle of the present invention and are not intended to limit the scope of the present invention.

[0078] System embodiment

[0079] A specific embodiment of the present invention discloses a fan parameter optimization oscillation suppression system based on the modal stability domain, such as figure 1 shown. The system is used to suppress the oscillation of the wind power grid-connected system by adjusting the control parameters of the doubly-fed wind power generating set, and the doubly-fed wind power generating set is connected to the grid to form a wind power grid-connected system.

[0080] The fan parameter optimization oscillation suppression system includes:

[0081] The data coll...

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Abstract

The invention relates to a wind turbine parameter optimization oscillation suppression system and method based on a modal stability domain, which belongs to the technical field of wind power generation and solves the problems in the prior art that the wind power grid-connected system has poor vibration suppression effect and is not conducive to the stable operation of the power grid. The system includes: a data acquisition module, which collects relevant data of the wind power grid-connected system; a system aperiodic dynamic energy acquisition module, which is used to obtain the total aperiodic dynamic energy of the wind power grid-connected system; The operating data of the grid system and the total non-periodic dynamic energy of the wind power grid-connected system construct the modal stability domain of the wind power grid-connected system; the boundary fitting module of the modal stability domain performs hyperplane fitting on the modal stability domain to obtain the fitting super Plane; wind turbine control parameter optimization module, used to optimize the control parameters of double-fed wind turbines. The system can quickly and effectively suppress the oscillation in the wind power grid-connected system and ensure its stable operation.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a system and method for optimizing oscillation suppression of wind turbine parameters based on modal stability domains. Background technique [0002] China's new energy strategy will focus on vigorously developing wind power generation. Due to the fluctuation of wind power generation power and phase-locked loop, virtual inertia, etc. are additional control links to improve its performance, the operation mode and dynamic characteristics of the power system will undergo essential changes, especially when the system is disturbed. Oscillation problems are exacerbated by behavior different from conventional synchronous generators. Therefore, it is urgent to conduct in-depth research on the suppression method of oscillation caused by disturbance in the power system with high wind power penetration rate. [0003] At present, the research method for the low-frequency osci...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/24H02J3/38
CPCH02J3/24H02J3/381H02J2203/20H02J2300/28Y02E10/76
Inventor 马静周晓东顾元沛刘晨
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)