基于续电流和相电流有效值的开关磁阻发电机故障诊断分析

电气工程学报 ›› 2015, Vol. 10 ›› Issue (10): 52-58.

基于续电流和相电流有效值的开关磁阻发电机故障诊断分析

易灵芝^1,²,隋永波^1,²,朱广辉^2,³,龚湖广¹,陈人楷¹

^1. 智能计算与信息处理教育部重点实验室（湘潭大学）湘潭 411105
^2. 湖南省“风电装备与电能变换” 2011协同创新中心湘潭 411101
国家能源风力发电机研发（实验）中心湘潭 411101

收稿日期:2015-03-05 出版日期:2015-10-25 发布日期:2020-01-03
作者简介:易灵芝, 女 1966年生,教授,主要研究方向为交流调速与电力电子装置,新能源发电直流微网。|隋永波, 男 1990年生,硕士,主要研究方向为电力电子与电力传动。
基金资助:
国家自科基金(61572416);国家自科基金(14K095);湖南省“十二五”重点学科“信息与通信工程”资助项目

The Faults Diagnostic Analysis for the Power Converter in Switched Reluctance Generator Based on the RMS of Freewheeling Current and Phase Current

Yi Lingzhi^1,²,Sui Yongbo^1,²,Zhu Guanghui^2,³,Gong Huguang¹,Chen Renkai¹

^1. Key Laboratory of Intelligent Computing & Information Processing Xiangtan University Ministry of Education Xiangtan 411105 China
^2. Wind Power Equipment and Power Conversion 2011 Collaborative Innovation Center Xiangtan 411105 China
^3. National Center for Energy Research and Development of Wind Turbine Experiment Xiangtan 411101 China

Received:2015-03-05 Online:2015-10-25 Published:2020-01-03

摘要/Abstract

摘要：

功率变换器连接控制器和开关磁阻发电机,是实现传输能量的重要部分。但开关管的开路故障将导致系统缺相运行,发电机输出功率低下;短路故障将导致高电流,甚至烧毁器件。为此,提出一种基于续电流和相电流的故障诊断算法,通过续电流和相电流提取出的特征值进行逻辑判断,实现了功率变换器开关器件的故障检测,甚至可以定位故障元件,并给出了判断逻辑部分的阀值经验公式。通过Simulink平台仿真实验和实物实验结果,都验证了该故障诊断算法的可行性和有效性。

关键词: 开关磁阻, 发电机故障诊断, 功率变换器, 续电流, 相电流

Abstract:

The power converter linking controller to switched reluctance generator are becoming the important part in energy transmission. However, the open-circuit failure of the switch transistor will lead to phase-deficient operation of the system and low power output of the generator;Short circuit fault also results in the high current during the operation and even leads to the burning of the devices.Therefore,a fault diagnosis method based on the freewheeling current and phase current is proposed in this paper.Through logical judgment of the characteristic valuesextracted by the freewheeling current and phase current,the fault detection of power converter switching devices can be achieved,the fault components even can be located,and the logical judgment part of the threshold formula will be given as well.The feasibility and effectiveness of the proposed fault diagnosis algorithm are verified by the simulation experiments on Simulink platform and physical experiments.

Key words: Switched reluctance generator, fault diagnosis, power converter, freewheeling current, phase current

中图分类号:

TM315

易灵芝,隋永波,朱广辉,龚湖广,陈人楷. 基于续电流和相电流有效值的开关磁阻发电机故障诊断分析[J]. 电气工程学报, 2015, 10(10): 52-58.

Yi Lingzhi,Sui Yongbo,Zhu Guanghui,Gong Huguang,Chen Renkai. The Faults Diagnostic Analysis for the Power Converter in Switched Reluctance Generator Based on the RMS of Freewheeling Current and Phase Current[J]. Journal of Electrical Engineering, 2015, 10(10): 52-58.

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