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Semi-direct drive DC wind turbine and its control method and equipment

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 poor economy and difficult construction

Active Publication Date: 2021-08-24
XINJIANG GOLDWIND SCI & TECH CO LTD
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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 DC wind turbine and its control method and equipment
  • Semi-direct drive DC wind turbine and its control method and equipment
  • Semi-direct drive DC wind turbine and its control method and equipment

Examples

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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] Such as 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 ...

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Abstract

The present disclosure provides a semi-direct drive DC wind power generating set and its control method and equipment. The control method includes: determining the reference output voltage of the reactive power compensation device when the semi-direct drive DC wind power generating set operates in the maximum power point tracking MPPT mode; taking the determined reference output voltage of the reactive power compensation device as the target, controlling the The output voltage of the power compensation device to adjust the voltage at the connection point, wherein the input end of the generator of the semi-direct drive DC wind power generating set is connected to the gearbox, and the output end of the generator is respectively connected to the The primary side of the machine-side transformer, the reactive power compensation device, and the secondary side of the machine-side transformer are connected to the output end of the semi-direct drive DC wind power generating set via a rectifier and a high-voltage switchgear 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 Patents(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 CO LTD
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