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An Analysis Method for the Effect of Rotor-side Control Parameters on Torsional Vibration of Doubly-fed Fan Shafting

A technology for controlling parameters and doubly-fed fans, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as heavy workload and complex models, and achieve the goal of simplifying secondary links, realizing search, and reducing risks Effect

Active Publication Date: 2017-01-04
STATE GRID CORP OF CHINA +2
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Problems solved by technology

Therefore, using the traditional doubly-fed wind turbine model to analyze the influence of the rotor side control parameters on the torsional vibration of the doubly-fed wind turbine shaft system, not only the workload is large, the model is more complicated, but also the possible influence of other factors cannot be ignored

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  • An Analysis Method for the Effect of Rotor-side Control Parameters on Torsional Vibration of Doubly-fed Fan Shafting
  • An Analysis Method for the Effect of Rotor-side Control Parameters on Torsional Vibration of Doubly-fed Fan Shafting
  • An Analysis Method for the Effect of Rotor-side Control Parameters on Torsional Vibration of Doubly-fed Fan Shafting

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Embodiment Construction

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0031] The present invention provides an analysis method for the influence of rotor-side control parameters on the torsional vibration of the DFIG shaft system, which includes quickly obtaining the torsional vibration critical point of the DFIG shaft system based on the simplified model of the DFIG, and then performing torsional vibration analysis on it. analysis of vibration effects; Figure 4 The power system structure diagram based on the simplified model of doubly-fed wind turbines is shown. The doubly-fed wind farms are respectively connected to two infinite power systems through transmission lines. A series compensation capacitor is set on one transmission line, and the series compensation capacitor can be adjusted at a specific moment. Bypass, and a three-phase ground...

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Abstract

The invention provides a method for analyzing affection on torsional vibration of a shaft system of a double-fed fan from rotor-side control parameters. The method includes steps of 1, establishing a simulation model of a double-fed wind generator set; 2, setting to-be-adjusted torsional vibration parameters of the shaft system according to the simulation model; 3 acquiring critical values of the to-be-adjusted torsional vibration parameters of the shaft system by the golden section method. Compared with the prior art, the method for analyzing affection on the torsional vibration of the shaft system of the double-fed fan acquires the critical values of the to-be-adjusted torsional vibration parameters of the shaft system on the basis of the simulation model of the double-fed wind generator set and is efficient in algorithm and simple and easy to implement.

Description

technical field [0001] The invention relates to a method for analyzing the torsional vibration of the shaft system of a double-fed fan, in particular to an analysis method for the influence of control parameters on the rotor side on the torsional vibration of the shaft system of a double-fed fan. Background technique [0002] Vigorously developing renewable, non-polluting, high-energy, and promising wind power technology has become an important choice for the energy strategies of countries all over the world. However, connecting a large amount of wind power will increase the complexity of the dynamic characteristics of the power system and have a serious impact on the safe and stable operation of the power system, mainly including the unreasonable configuration of wind turbine parameters that will cause the shafting torsional vibration of the wind turbine. At present, wind turbines in wind power generation systems mainly use double-fed wind turbines, so effectively adjusting...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 张磊王湘艳管永高汤奕朱凌志赵大伟刘艳章钱敏慧陈宁姜达军葛路明
Owner STATE GRID CORP OF CHINA
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