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基于Buck变换器调压的无刷直流电机功率变换器单管开路故障诊断
  • ISSN号：0258-8013
  • 期刊名称：电机工程学报
  • 时间：2013.5.25
  • 页码：124-132
  • 分类：TM464[电气工程—电器]
  • 作者机构：[1]惯性技术国家级重点实验室(北京航空航天大学),北京市海淀区100191
  • 相关基金：国家自然科学基金项目（61203112）; 国家自然基金创新群体（61121003）; 国家重点基础研究发展计划项目（973项目）（2009CB72400101C）~~
  • 相关项目：多源扰动下基于谐波减速器的高精度低速速率伺服控制研究
作者： 李文琢|房建成|李海涛|
关键词： 无刷直流电机, BuckDC-DC变换器, 三相全桥逆变器, 单管开路故障诊断, brushless DC motor, Buck DC-DC converter, three-phase full bridge inverter, single switch open-circuit fault diagnosis
中文摘要：

功率变换器是无刷直流电机驱动系统中最易发生故障的薄弱环节,因此,功率变换器故障诊断成为无刷直流电机容错控制研究的关键。该文针对基于Buck DC-DC变换器调压的无刷直流电机三相全桥逆变器,根据其正常与故障状态下的不同工作特性,在现有单电流传感器的基础上,仅对直流母线电流进行采样,与电机360电角度内的6种工作状态相结合,提出了一种简单易行的故障诊断方法,实现三相全桥与Buck变换器功率管单管开路故障检测与识别,同时设计了故障保护电路,有效防止二次故障的发生。仿真与实验结果验证了该方法的可行性与有效性。

英文摘要：

The power inverters which frequently go wrong are the weakest part in brushless DC （BLDC） motor drive systems. Thus, fault diagnosis of power inverters is the key point in the fault-tolerant control of BLDC motors. In this paper, the normal and faulty operating states of BLDC motor power inverters with buck DC-DC converter before the three phase full bridge were analyzed in detail. A straightforward method of single open-switch fault diagnosis in three phase full bridge inverters and buck DC-DC converters of the motor driver was proposed with only one current sensor. The measured DC-link currents and the six different operating states in 360 electrical degrees were used to detect the single switch open-circuit fault andto identify the faulty switch. Also, a protective circuit was designed to avoid the occurrence of the secondary fault. Both simulation and experimental results carried out confirm the feasibility and effectiveness of the proposed method for diagnosing single switch open-circuit fault in power inverters.

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多源扰动下基于谐波减速器的高精度低速速率伺服控制研究
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期刊信息
  • 《中国电机工程学报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学技术协会
  • 主办单位:中国电机工程学会
  • 主编：张文涛
  • 地址：北京清河小营东路15号 中国电力科学研究院内
  • 邮编：100192
  • 邮箱：pcsee@epri.sgcc.com.cn
  • 电话：010-82812536 82812534 82812545
  • 国际标准刊号：ISSN：0258-8013
  • 国内统一刊号：ISSN：11-2107/TM
  • 邮发代号:82-327
  • 获奖情况:
  • 1992年全国优秀科技期刊三等奖,1992年中国科协优秀科技期刊二等奖,1996年中国科协优秀科技期刊二等奖,中国期刊方阵“双效”期刊
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  • 被引量:98970