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Control method, system and apparatus for wind-driven generator

A technology for wind turbines and control methods, applied in the field of systems and devices, and control methods for wind turbines, can solve problems such as difficult development of program codes, lag in system response, and complicated work of a central controller, thereby reducing the difficulty of development and reducing the difficulty of system development. The effect of reliable work and short program code

Inactive Publication Date: 2008-11-12
SHENZHEN FENGFA SCI & TECH DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the control methods adopted by the existing wind turbines can effectively realize the control of the wind turbine system, the central controller alone completes the control of the entire wind turbine system The control of the central controller will undoubtedly increase the workload of the central controller, making the work that the central controller needs to complete complicated, the program code is long and difficult to develop, and the system response lags behind
Therefore, existing wind generators often use digital signal processors (DSP, digital signal processor) to increase the real-time performance of the system, but at the same time increase the cost and complexity of the control system, and are not conducive to the long-term maintenance of the system

Method used

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  • Control method, system and apparatus for wind-driven generator
  • Control method, system and apparatus for wind-driven generator
  • Control method, system and apparatus for wind-driven generator

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Embodiment 1

[0053] see figure 1 , figure 1 A method for controlling a wind power generator is provided for an embodiment of the present invention. The method specifically may include the following steps:

[0054] Step 101: The analog / digital conversion module acquires various control signals, performs analog / digital conversion on the various control signals, and outputs them to the main controller.

[0055] Wherein, the A / D conversion module is an A / D conversion chip with multiple channels and fast conversion speed, which is used to convert various control signals required by the system from analog to digital. The various control signals required by the system may be wind speed, rotational speed, torque, voltage, current and so on.

[0056] Step 102: the master controller sends the various control signals to corresponding slave controllers respectively.

[0057] Among them, the master controller sends the address frame of the slave controller before sending data;

[0058] The slave con...

Embodiment 2

[0068] see figure 2 , figure 2 A schematic diagram of a control system of a wind power generator is provided for an embodiment of the present invention. Such as figure 2 As shown, the control system provided by the present invention mainly includes:

[0069] An analog / digital conversion module 201, configured to obtain various control signals, perform analog / digital conversion on the various control signals and output them to the main controller 202;

[0070] Wherein, the A / D conversion module 201 is an A / D conversion chip with multiple channels and fast conversion speed, which is used to convert various control signals required by the system from analog to digital. The various control signals required by the system may be wind speed, rotational speed, torque, voltage, current and so on.

[0071] The master controller 202 is used to send the various control signals output by the analog / digital conversion module 201 to the corresponding slave controllers, namely to the p...

Embodiment 3

[0079] see Figure 4 , Figure 4 It is a schematic diagram of the control system provided by Embodiment 3 of the present invention. Such as Figure 4 As shown, the schematic diagram of the control system provided by the embodiment of the present invention mainly includes:

[0080] An analog / digital conversion module 401, configured to obtain various control signals, perform analog / digital conversion on the various control signals and output them to the main controller 402;

[0081] The main controller 402 is used to send the various control signals output by the analog / digital conversion module 401 to the corresponding pitch system controller 403, excitation system controller 404 and display system controller 405; According to the voltage signal of the battery pack in the various control signals, the unload switch of the battery is controlled to be turned on or off, so as to prevent the battery from being over-discharged or over-charged.

[0082] The pitch control system c...

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Abstract

The invention discloses a control method, a system and a device of a wind driven generator. The method is that an analog to digital conversion module obtains various control signals and outputs the control signals to a main controller after the analog to digital conversion; the main controller respectively sends the control signals to a corresponding subordinate controller; the subordinate controller controls the wind driven generator according to the corresponding control signals of the control signals. The control system comprises the analog to digital conversion module which is used for obtaining various control signal and outputs the control signals to a main controller after the analog to digital conversion, the main controller which is used for respectively sending the control signals to the corresponding subordinate controller and the subordinate controller which is used for controlling the wind driven generator according to the corresponding control signals; the subordinate controller comprises a variable propeller pitch system controller, an excitation system controller and a display system controller. The method, the system and the device of the invention can lead the control system structure of the wind driven generator to be simple, has the low cost and is beneficial to the development and the long-term maintenance.

Description

technical field [0001] Embodiments of the present invention relate to the field of motor control, in particular to a control method, system and device for a wind power generator. Background technique [0002] At present, the existing wind power generators adopt a centralized control method to control the system centrally. The centralized control method adopted is: the control system of the existing wind power generator is composed of a central controller and a peripheral interface board; the peripheral interface board collects external signals (such as wind speed, rotating speed, etc.) Central controller: The central controller centrally controls the entire wind power generator system according to the external signal input by the peripheral interface board. That is, the central controller needs to independently complete a series of tasks such as data acquisition, analog / digital conversion, pitch change, generator excitation and display output. [0003] Although the control...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/14H02J7/16H02P9/04H02P9/14G05B19/418G05B15/02
CPCY02P90/02
Inventor 周庆余邓全伟
Owner SHENZHEN FENGFA SCI & TECH DEV
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