| 引用本文: | 欧阳帆,张亮峰,李 刚,荀吉辉,陈 宏.微机保护装置逆变电源故障原因分析[J].电力自动化设备,2011,31(7): |
| OUYANG Fan,ZHANG Liangfeng,LI Gang,XUN Jihui,CHEN Hong.Analysis of power supply module faults for microprocessor protection devices[J].Electric Power Automation Equipment,2011,31(7): |
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| 摘要: |
| 针对逆变电源模块故障频繁发生的情况，整理和统计了某省电网近年来与逆变电源模块故障相关的继电保护装置故障数据，介绍了在继电保护及安全自动装置有关标准中对逆变电源性能的技术要求。对故障数据从故障类型和使用寿命两方面进行归类分析，举出两例相关故障案例；分析了逆变电源模块的工作原理，并指出电容元件损坏或失效、抗电磁干扰性能差、电源输出功率不足、散热不充分等设计和技术缺陷是导致逆变电源模块故障的主要原因，并从设备管理的角度给出了把好入网检测关、按时更换电源插件等具体的治理意见。 |
| 关键词: 故障分析 逆变电源模块 微机保护装置 继电保护 |
| DOI： |
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| Analysis of power supply module faults for microprocessor protection devices |
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OUYANG Fan, ZHANG Liangfeng, LI Gang, XUN Jihui, CHEN Hong
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Hunan Electric Power Corporation Research Institute，Changsha 410007，China
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| Abstract: |
| The statistical data of recent power supply module faults are summarized and the technical requirements of microprocessor protection devices and safety automation devices for its performance are introduced. Two fault cases are analyzed after fault sorting by lifecycle and type. By analyzing the working principle of power supply module，it is pointed out that the main causes are：corrupted capacitor，EMC design defect，under-power，insufficient heat dissipation，etc. Countermeasures are suggested. |
| Key words: fault analysis power supply module microprocessor protection device relay protection |
