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PC机电压暂降敏感度试验研究 被引量:9

Experimental research on sensitivity of PC to voltage sags
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摘要 PC机更新换代快,目前新型与早期PC机电压暂降耐受特性可能存在较大差异&文中首先通过对PC机电源与主板电路分析,指出了结构变化以及嵌入缓解方案对PC机暂降敏感度的影响。然后,制定了试验方案,以Chroma61860为暂降发生源,以主流品牌的不同生产日期的3台PC机(其中2台同品牌同批次)为试品,研究了不同运行工况下的PC机暂降敏感度,并将所得试验曲线与现有的PC机暂降耐受能力范围进行对比。结果表明,运行工况是影响PC机暂降敏感度的重要因素之一,而目前新型PC机暂降耐受水平已得到明显提升。 There may be great difference in tolerance of early and current new type of PC to voltage sags due to fast update of PC technique. In this paper,PC power supply and motherboard circuit are analyzed firstly,and the impact on sag-sensitivity of PC is pointed out because of structure changing and embedded solutions. Then,an experimental program is developed and Chroma 61860 is used as voltage sag generator. Three mainstream PCs that produced in different periods are selected as the representatives( two PCs are the same brands and batch among them),and the sensitivity of PC to voltage sags is researched under different operating conditions. And test curves are compared with the existing sag-tolerance range about PC. The results show that the PC operating condition is one of the important factors that affect sensitivity of PC to voltage sags. And the sag-tolerance of present PC has been enhanced markedly.
作者 刘书铭 吴亚盆 张博 徐永海 Liu Shuming;Wu Yapen;Zhang Bo;Xu Yonghai(Electric Power Research Institute of State Grid Henan Electric Power Company,Zhengzhou 450052,China;State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University,Beijing 102206,China)
出处 《电测与仪表》 北大核心 2019年第11期32-36,48,共6页 Electrical Measurement & Instrumentation
基金 国网河南省电力公司科技项目(52170216001J)
关键词 电压暂降 PC机 Chroma61860 运行工况 试验研究 暂降敏感度 voltage sags PC Chroma 61860 operating condition experimental research sag sensitivity
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