摘要
针对变桨控制系统中故障电路板,文章以虚拟仪器技术为软件平台,嵌入式计算机作为硬件平台,形成了一套以电路板PMPC为测试对象的测试平台。针对电路板无完善工作原理图、无法有效获取先验知识和故障数据库的情况,提出了基于模糊综合评判的故障诊断方法,以故障测试点隶属度作为智能评判标准,同时改进了基于故障征兆与故障原因集的模糊综合评判算法。经故障诊断实验表明,该故障诊断手段是可行的。
This paper introduced a test platform for faulty circuit board in wind turbine pitch control system. The platform is essentially an automatic test system which is composed of virtual instrument technology as the software and embedded computer as the hardware platform. Because the detailed circuit schematic diagram of PMPC circuit board is unknown, a priori knowledge and fault database cannot be obtained effectively. The paper proposed a fault diagnosis method based on both fuzzy comprehensive evaluation and membership degree of fault test points as an intelligent evaluation standard. Meanwhile, the fuzzy comprehensive evaluation algorithm is improved based on fault symptom codes and fault cause sets. Fault diagnosis experiments show the proposed fault diagnosis method is feasible.
作者
汤海山
冯延晖
苏建国
邱颖宁
汪文东
王林
周权
Tang Haishan;Feng Yanhui;Su Jianguo;Qiu Yingning;Wang Wendong;Wang Lin;Zhou Quan(School of Energy and Power Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;Guohua(Jiangsu)Wind Power Co.,Ltd.,Dongtai 224299,China)
出处
《可再生能源》
CAS
北大核心
2019年第11期1656-1660,共5页
Renewable Energy Resources
基金
国家自然科学基金青年项目(51505225)
江苏风力发电工程技术中心开放基金项目(ZK18-03-01)
江苏省自然科学基金面上项目(BK20131350)
江苏省六大人才高峰项目(ZBZZ-045)
中央高校基本科研业务费专项资金资助(30915011324)
关键词
变桨控制系统
自动测试系统
模糊综合评判
故障诊断
隶属度
pitch control system
automatic test system
fuzzy comprehensive evaluation
fault diagnosis
membership degree
作者简介
通讯作者:冯延晖(1977-),男,博士,副教授,研究方向为风电机组故障诊断与电力电子传动技术。E-mail:yanhui.feng@njust.edu.cn。
