CAJ | 학술논문

针对当前幅值—持续时间二维平面上的电压耐受曲线未能全面充分描述用电设备电压暂降敏感度的缺陷,基于大量试验数据提出了一种考虑暂降起始点相位的低压脱扣器电压暂降敏感度三维模型。首先,结合国家标准GB 14048.1—2006,分析了低压脱扣器的工作机理。其次,在国内外研究成果基础上,结合 GB/T 17626.11—2008,讨论了暂降起始点相位对敏感设备的影响。然后,对6款主流的低压脱扣器进行暂降敏感度试验对比,结果表明：低压脱扣器电压暂降敏感度与暂降起始点相位及款式密切相关。最后,综合各款低压脱扣器试验结果,通过对试验结果进行极值化处理,利用曲面拟合原理,从暂降幅值、持续时间、起始点相位3个维度上,建立了通用于各款低压脱扣器的暂降敏感度模型。
침대당전폭치—지속시간이유평면상적전압내수곡선미능전면충분묘술용전설비전압잠강민감도적결함,기우대량시험수거제출료일충고필잠강기시점상위적저압탈구기전압잠강민감도삼유모형。수선,결합국가표준GB 14048.1—2006,분석료저압탈구기적공작궤리。기차,재국내외연구성과기출상,결합 GB/T 17626.11—2008,토론료잠강기시점상위대민감설비적영향。연후,대6관주류적저압탈구기진행잠강민감도시험대비,결과표명：저압탈구기전압잠강민감도여잠강기시점상위급관식밀절상관。최후,종합각관저압탈구기시험결과,통과대시험결과진행겁치화처리,이용곡면의합원리,종잠강폭치、지속시간、기시점상위3개유도상,건립료통용우각관저압탈구기적잠강민감도모형。
In view of the failure of the voltage tolerance curve in the current two-dimensional plane of amplitude and duration to fully describe the sensitivity of equipment,a three-dimensional model for the sensitivity of low-voltage releases to voltage sags considering the point-on-wave of voltage sag initiation is proposed based on a large number of experimental data.First,the working principle of low-voltage releases is explained on the basis of Chinese National Standards GB 14048.1—2006.Secondly, in conjunction with relevant foreign and domestic research results and Chinese National Standards GB/T 17626.11—2008,the influence of point-on-wave of voltage sag initiation on the equipment sensitivity is discussed.Thirdly,six mainstream types of low-voltage releases are compared in the voltage sag sensitivity test,the results showing that the sensitivity of low-voltage release to voltage sag is closely related to its type and the point-on-wave of voltage sag initiation.Finally,test results of various low-voltage releases are integrated and their extreme processing is conducted.By adopting the surface fitting principle,a three-dimensional sensitivity model suitable for all types of low-voltage releases is developed from voltage sag amplitude,duration and point-on-wave of voltage sag initiation.