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Servo-driven control system for changing propeller of wind generating set

A technology of wind turbines and servo drive, which is applied in the control of wind turbines, wind turbines, wind power generation, etc., and can solve problems such as difficulties and system complexity

Active Publication Date: 2011-09-21
CHENGDU FORWARD TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method often needs to establish an effective system mathematical model first, and the uncertainty of aerodynamics and the complexity of the system make it very difficult to establish an accurate system model. Based on this defect in the existing technology and the precise requirements of the product, It is necessary to develop a servo drive control system for adjusting the blades of wind turbines in real time according to wind condition information

Method used

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  • Servo-driven control system for changing propeller of wind generating set
  • Servo-driven control system for changing propeller of wind generating set
  • Servo-driven control system for changing propeller of wind generating set

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Embodiment Construction

[0009] In order to explain in detail the technical content, structural features, achieved objectives and effects of the present invention, the following examples are given in conjunction with the drawings for detailed description.

[0010] See figure 1 , The servo drive control system 100 for pitch of the wind turbine generator of the present invention includes a complex programmable logic device CPLD10, a resolver decoding circuit 20, an analog-to-digital converter ADC30, a processor DSP40, a drive circuit module 50, and an intelligent Power module IPM60, a resolver 70, a signal adjustment circuit module 80, and a current signal acquisition module 90.

[0011] The current signal acquisition module 90 is installed on a line that inputs current to the pitch motor 200, and is used to collect the current signal input to the pitch motor 200, and the current signal is an analog signal.

[0012] The signal adjustment circuit module 80 is installed between the analog-to-digital converter AD...

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Abstract

The invention discloses a servo-driven control system for changing a propeller of a wind generating set. The servo-driven control system is connected with a master control system and used for controlling a motor for changing the propeller of the wind generating set. The system comprises a CPLD (complex programmable logic device), a current signal acquisition module, a rotary variable decoding circuit, an ADC (analog-digital converter), a DSP (digital signal processor), a drive circuit module, a rotary transformer and an IPM (intelligent power module). The system can change the propeller in real time in accordance with air condition information acquired by the master control system of the wind generating set, thus the propeller of the wind generating set can be always maintained in an optimal power output state.

Description

Technical field [0001] The invention relates to the technical field of wind power generation control, in particular to a servo drive control system for pitch change of a wind power generator set. Background technique [0002] In the field of wind power generation control technology, the main function of the servo drive control system for the pitch of the wind turbine is to adjust the blades of the wind turbine according to the real-time wind condition information, so that the blades are always maintained at the angle and position that can obtain the maximum energy output. [0003] However, due to the real-time variability of wind conditions and the influence of aerodynamic effects, the pitch control system has become a multi-variable nonlinear uncertain system. The existing variable pitch control system mainly achieves the control purpose through PID control. This method first often requires the establishment of an effective system mathematical model. The uncertainty of aerodynami...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/00
CPCY02E10/723Y02E10/72
Inventor 谭勇苗强张宇行
Owner CHENGDU FORWARD TECH