A method, system, device and storage medium for controlling the pitch angle of a wind turbine
A technology of wind turbines and control methods, applied in the control of wind turbines, mechanical equipment, wind turbines, etc., can solve problems such as loss of power generation, achieve the effect of increasing the fixed slope and avoiding sudden changes in aerodynamic force
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0041] A pitch angle control method for extreme wind direction changes such as figure 1 As shown, the wind speed of the anemometer is detected in the current detection cycle. Due to factors such as the measurement device and the rotation of the wind wheel, the measured wind speed cannot directly participate in the control. Therefore, a 10-second sliding average is performed on the wind speed measured by the anemometer. Compare it with the preset wind speed threshold, if the threshold is not exceeded, the operating status of the unit will not change. The judging condition set here is that this method will be used only if the wind speed is greater than the set wind speed, so as to avoid the loss of power generation caused by the pitch angle action caused by frequent rapid wind direction changes under small wind. If the wind speed measured by the 10-second moving average anemometer exceeds the preset wind speed threshold, the wind direction of the anemometer is detected in the cu...
Embodiment 2
[0045] A pitch angle control method for extreme wind direction changes, comprising the steps of:
[0046] Detect the current anemometer to measure the wind speed, and transmit the measurement signal to the PLC controller.
[0047] Since the wind speed measured by the anemometer presents irregular real-time fluctuations, it is not suitable to directly participate in the control algorithm.
[0048] Perform a 15-second sliding average on the currently measured wind speed of the anemometer to obtain the wind speed of the anemometer after the current 15-second sliding average.
[0049] Get the set wind speed threshold.
[0050] Determine whether the wind speed of the anemometer after the current 15-second sliding average is greater than the set wind speed threshold.
[0051] If the wind speed of the anemometer after the current 15-second sliding average is lower than the set wind speed threshold, the unit is running normally without any additional control actions.
[0052] If th...
Embodiment 3
[0071] A pitch angle control system for extreme wind conditions, comprising:
[0072] The wind speed acquisition module is used to obtain the real-time measured wind speed of the wind turbine;
[0073] The wind direction acquisition module is used to obtain the real-time measured wind direction of the wind turbine;
[0074] The data processing module is used to receive the data transmitted by the wind speed acquisition module and the wind direction acquisition module, and process the data to obtain the real-time wind direction deviation threshold;
[0075] The judging module is used to receive the data from the data processing module and judge whether it is necessary to adjust the minimum pitch angle of the wind turbine.
[0076] The judging module includes a wind speed judging unit, a wind direction judging unit and a wind direction deviation judging unit;
[0077] Wind speed judgment unit: when the real-time measured wind speed is less than or equal to the wind speed thres...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com