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Semi-direct-drive direct-current wind generating set and control method and device thereof

A technology of wind power generators and control methods, which is applied in wind power generation, AC network voltage adjustment, electrical components, etc., and can solve problems such as difficult construction and poor economy

Active Publication Date: 2021-02-02
XINJIANG GOLDWIND SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing offshore step-up station is an AC / DC step-up station. After the wind turbine outputs AC, it passes through the step-up transformer for AC collection, and then passes through a large transformer and the offshore step-up station. The construction is difficult and economical.

Method used

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  • Semi-direct-drive direct-current wind generating set and control method and device thereof
  • Semi-direct-drive direct-current wind generating set and control method and device thereof
  • Semi-direct-drive direct-current wind generating set and control method and device thereof

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Embodiment Construction

[0033] Reference will now be made in detail to embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings, wherein like numerals refer to like parts throughout. The embodiments are described below in order to explain the present disclosure by referring to the figures.

[0034] figure 1 A schematic structural diagram of a semi-direct drive DC wind power generating set according to an exemplary embodiment of the present disclosure is shown.

[0035] like figure 1 As shown, the semi-direct drive DC wind turbine according to the exemplary embodiment of the present disclosure includes: a gearbox 100 , a generator 200 , a machine-side transformer 300 , a rectifier 400 , a reactive power compensation device 500 , and a high-voltage switchgear 600 . It should be understood that the semi-direct drive DC wind power generator set according to the exemplary embodiment of the present disclosure may also include other components required as a win...

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Abstract

The invention provides a semi-direct-drive direct-current wind generating set and a control method and device thereof. The control method comprises the steps that when the semi-direct-drive direct-current wind generating set operates in a maximum power point tracking MPPT mode, the reference output voltage of the reactive power compensation device is determined; the output voltage of the reactivepower compensation device is controlled with the determined reference output voltage of the reactive power compensation device as the target so as to adjust the voltage at the connection point, and the input end of a generator of the semi-direct-drive direct-current wind generating set is connected to a gear box; the output end of the generator is connected to the primary side of the machine-sidetransformer and the reactive power compensation device through the connecting points, and the secondary side of the machine-side transformer is connected to the output end of the semi-direct-drive direct-current wind generating set through the rectifier and the high-voltage switch device in sequence.

Description

technical field [0001] The present disclosure generally relates to the technical field of wind power, and more specifically, relates to a semi-direct drive DC wind power generator set and its control method and equipment. Background technique [0002] Offshore wind farms are attracting more and more attention, and high-voltage direct current (HVDC) is a suitable option for power transmission in long-distance offshore wind farms. The existing offshore step-up station is an AC / DC step-up station. The AC output from the wind turbine is collected through a step-up transformer, and then passes through a large transformer and an offshore step-up station. The construction is difficult and economical. Contents of the invention [0003] Exemplary embodiments of the present disclosure are to provide a semi-direct drive DC wind power generating set and its control method and equipment, which can control the reactive power compensation device to adjust the voltage at the connection po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/16H02J3/38H02J3/48H02J3/50
CPCH02J3/16H02J3/38H02J3/48H02J3/50H02J2300/28Y02E40/30Y02E10/76H02J3/36H02J3/381Y04S10/123
Inventor 冯其塔汤明杰李战龙
Owner XINJIANG GOLDWIND SCI & TECH
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