Reliability Evaluation of Wind Power Converter Under Fault-tolerant Control Scheme with Quantification of Temperature and Humidity Effects

作     者：Xueying Yu Bo Hu Kaigui Xie Changzheng Shao Yunjie Bai Wenyuan Li Jinfeng Ding 

作者机构：State Key Laboratory of Power Transmission Equipment and System SecurityChongqing UniversityChongqing 400030China 

出 版 物：《Journal of Modern Power Systems and Clean Energy》 (现代电力系统与清洁能源学报（英文）)

年 卷 期：2023年第11卷第5期

页      面：1700-1710页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0807[工学-动力工程及工程热物理] 

基　　金：supported by the National Natural Science Foundation of China(No.52022016) China Postdoctoral Science Foundation(No.2021M693711) Fundamental Research Funds for the Central Universities(No.2021CDJQY-037) 

主　　题：Effective temperature(ET) fault-tolerant control scheme humidity reliability evaluation wind power converter(WPC) 

摘      要：Wind power converter(WPC)is a key part of a wind power unit which delivers electric energy to power *** of a large number of semiconductors,WPC has a high failure *** paper proposes a method to accurately evaluate the reliability of WPC,which is crucial for the design and maintenance of wind ***,the index of effective temperature(ET)is presented to quantify the effects of temperature and humidity on the semiconductor operation.A novel method is proposed to evaluate the lifetime and calculate the aging failure rates of the semiconductors considering the fluctuations of ***,the failure mode and effect analysis(FMEA)of WPC is investigated based on the topology and control *** conventional two-state reliability model of the WPC is extended to the multi-state reliability model where the partial working state under the fault-tolerant control scheme is ***,a reliability evaluation framework is established to calculate the parameters of the WPC reliability model considering the variable failure rates and repair activities of *** studies are designed to verfify the proposed method using a practical wind turbine.