风电滑环编码器防雷保护模块研究设计  

Study and Design of Lightning Protection Module for Wind Power Slip Ring Encoder

作　　者：陈年 李唐 史晓勇 沙旭南 CHEN Nian LI Tang SHI Xiao-yong SHA Xu nan(CSIC Hebowi （Jiangsu） Technology Development Co. Ltd., Yangzhou 225000,Chin)

机构地区：[1]中船重工海博威(江苏)科技发展有限公司,扬州225000

出　　处：《舰船电子对抗》2016年第5期113-116,共4页Shipboard Electronic Countermeasure

摘　　要：针对风电滑环编码器受雷击故障率高,影响用户风机正常使用的问题,根据编码器损坏的特点,设计了一种针对编码器电源的保护模块,分析了编码器故障的根本原因是感应电压,进而设计了释放感应电压模块,该模块可吸收瞬间释放感应电压,将编码器实际工作电压稳定在允许的40VDC以内,从而保证了编码器的安全。该模块体积小,最终与编码器电缆融为一体,安装方便,保护效果佳。For lightning failure rate of wind power slip ring encoder is high,which influences users on using the wind machine normally. According to the characteristics of encoder damage,this paper designs a protection module of encoder supply,analyzes that the root cause of encoder fault is in duced vohage,then designs the module for releasing induced voltage. The module can absorb the induced voltage released instantly, makes the practical operating voltage stable within 40V DC which is permitted,so the encoder safety is ensured. The size of the module is small,so the module is integrated with the encoder cable,which is convenient to be installed and makes the protective effect well.

关 键 词：风电滑环 编码器 感应电压 雷击 

分 类 号：TN762[电子电信—电路与系统]