Research on Control of Yaw Systems Based on Multi-channel Current Detection

In multi- motor driven yaw systems for wind turbines, the current prevailing practice of yaw soft start falls short in accurately monitoring the operational status of each yaw motor, potentially leading to exacerbated load imbalance within the yaw systems. In addition, when a yaw device fails, the o...

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Bibliographic Details
Main Authors: LI Liji, CHEN Langping, LI Yali, LI Qikai
Format: Article
Language:zho
Published: Editorial Office of Control and Information Technology 2025-02-01
Series:Kongzhi Yu Xinxi Jishu
Subjects:
Online Access:http://ctet.csrzic.com/thesisDetails#10.13889/j.issn.2096-5427.2025.01.012
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Summary:In multi- motor driven yaw systems for wind turbines, the current prevailing practice of yaw soft start falls short in accurately monitoring the operational status of each yaw motor, potentially leading to exacerbated load imbalance within the yaw systems. In addition, when a yaw device fails, the operation and maintenance personnel are required to conduct a one-by-one investigation, as they cannot accurately identify the defective yaw device, which complicates operation and maintenance. This paper proposes the integration of a multi-channel current detection device to the nacelle control cabinet to address these issues. This device is designed to detect the current of each yaw motor and transmit the data to the main controller through a communication channel. The main controller assesses the status of the corresponding yaw device based on the rated parameters of the yaw motor and controls the operation of the yaw device accordingly. Additionally, a corresponding main control protection logic is introduced to enable overcurrent protection for these yaw systems. In the experimental operation of the proposed device integrated into wind turbines, it effectively identified the electrical parameters for each respective yaw motor and maintained consistent torque, ensuring the operation of the yaw systems within the normal range. The research outcomes indicate that the yaw system control strategy based on multi-channel current detection can alleviate load imbalance on yaw motors and improve the operation and maintenance efficiency of wind turbines.
ISSN:2096-5427