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Doubly-fed wind turbine sub synchronous resonance hardware in-loop test system and method

A sub-synchronous resonance and doubly-fed wind turbine technology, applied in the power field, can solve the problems of time-domain simulation, such as differences in actual conditions, difficulty in obtaining, and failure to consider different performances of wind turbines, etc., to achieve the effect of improving the guiding significance and accurate test results

Active Publication Date: 2016-10-12
NORTH CHINA ELECTRICAL POWER RES INST +3
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Problems solved by technology

[0004] At present, the analysis of subsynchronous resonance of wind power mainly adopts the methods of eigenvalue calculation and time-domain simulation. The eigenvalue calculation requires detailed parameters of the doubly-fed unit, which is often difficult to obtain; time-domain simulation usually uses the classic fan model, and does not consider different manufacturers. Different performances of fans at sub-synchronous resonance, and there are differences between time-domain simulation and actual conditions, and the consistency with engineering reality needs to be checked
Therefore, there is still a lack of a sub-synchronous resonance test method and system that is close to engineering reality, is practical, and can consider the differences in products from different manufacturers.

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  • Doubly-fed wind turbine sub synchronous resonance hardware in-loop test system and method

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Embodiment Construction

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0035] In order to flexibly and simply realize the sub-synchronous resonance hardware-in-the-loop test of the doubly-fed fan, and close to the engineering practice, so that the test results are more accurate, the embodiment of the present invention provides a doubly-fed fan sub-synchronous resonance hardware-in-the-loop test system, such as figure 1 As shown, the DFIG SSR hardware-in-the-loop test system can include:

[0036] The power electronics real-time simulation platform 1, the power electronics real-time simulation platform 1 has built a real-time digital simul...

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Abstract

The invention discloses a doubly-fed wind turbine sub synchronous resonance hardware in-loop test system and a doubly-fed wind turbine sub synchronous resonance hardware in-loop test system method. The system comprises a power electronics real-time simulation platform and a to-be-tested doubly-fed wind turbine controller; a real-time digital simulation model comprising a power grid, wind power plant equipment and doubly-fed wind turbine equipment is built on the power electronics real-time simulation platform; after being subjected to real-time transformation, the real-time digital simulation model is downloaded to the simulation machine of the power electronics real-time simulation platform; and the to-be-tested doubly-fed wind turbine controller is connected with the real-time digital simulation model through the input and output interface of the simulation machine. With the doubly-fed wind turbine sub synchronous resonance hardware in-loop test system and the doubly-fed wind turbine sub synchronous resonance hardware in-loop test system method of the invention adopted, a doubly-fed wind turbine sub synchronous resonance hardware in-loop test can be realized flexibly and conveniently, and test results can be close to engineering practice, and test results is more accurate.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a sub-synchronous resonance hardware-in-the-loop test system and method of a doubly-fed fan. Background technique [0002] Wind power has become an important part of China's energy strategy. However, since a considerable part of my country's wind power is concentrated in Xinjiang, Gansu, Inner Mongolia and other northwest regions, while my country's energy load centers are concentrated in the southeast coastal areas, it is necessary to adopt a high-voltage, large-capacity transmission mode to achieve "West Telephone East". Considering the construction cost of new transmission lines and the occupation of transmission corridors, etc., it is of great significance to improve the transmission capacity of existing AC lines. Adding series compensation capacitors in the transmission line can reduce the line reactance and improve the static stability limit and transmission capaci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
CPCG05B23/02G05B23/0243G05B2219/24065
Inventor 李蕴红刘辉宁文元李雨江浩吴林林徐海翔
Owner NORTH CHINA ELECTRICAL POWER RES INST
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