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1.四川大学电气工程学院,四川省成都市 610065
2.广东电网有限责任公司电力科学研究院,广东省广州市 510080
Received:16 April 2020,
Revised:2020-07-03,
Published Online:21 August 2020,
Published:25 October 2020
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汪颖,陈春林,肖先勇等.电压暂降敏感设备耐受能力自动测试方法[J].电力系统自动化,2020,44(20):127-135.
WANG Ying,CHEN Chunlin,XIAO Xianyong,et al.Automatic Test Method for Tolerance Capability of Voltage Sag Sensitive Equipment[J].Automation of Electric Power Systems,2020,44(20):127-135.
汪颖,陈春林,肖先勇等.电压暂降敏感设备耐受能力自动测试方法[J].电力系统自动化,2020,44(20):127-135. DOI: 10.7500/AEPS20200416012.
WANG Ying,CHEN Chunlin,XIAO Xianyong,et al.Automatic Test Method for Tolerance Capability of Voltage Sag Sensitive Equipment[J].Automation of Electric Power Systems,2020,44(20):127-135. DOI: 10.7500/AEPS20200416012.
电压暂降敏感设备的电压暂降耐受能力是制定电压暂降治理方案、确定设备购置型号等的重要信息。通常通过设备电压耐受能力测试实验,获得敏感设备的电压耐受曲线(VTC)。传统测试方法存在自动化程度低、工作强度大、测试效率低等问题,文中提出一种敏感设备电压暂降耐受能力自动测试方法,集成处理电压暂降发生器和受测设备的电压、电流和开关数据等,提出开关类和非开关类受测设备的电压暂降后果判据及越限阈值,实现源、荷数据同步和VTC绘制的自动化。其次,提出一种改进二分法测试方法,可应用于矩形类和非矩形类VTC的敏感设备。最后,通过搭建自动测试仿真系统及实际物理测试平台,对所提自动测试方法及改进二分测试法进行验证。仿真结果表明:自动测试方法能够实现多维电压暂降特征下敏感设备电压暂降耐受能力自动测试。仿真与实测结果证明了所提改进二分法测试方法具有较高准确率和测试效率。
The voltage sag tolerance capability of sensitive equipment is important information for formulating voltage sag suppression scheme and deciding equipment type to be purchased. The voltage tolerance curve (VTC) of sensitive equipment is usually obtained through test experiments of equipment voltage tolerance capability. The traditional test method has the problems of low automation
high work intensity
and low test efficiency. This paper proposes an automatic test method for the voltage sag tolerance capability of sensitive equipment
to integrate the processing of voltage
current and switch data of the voltage sag generator and the equipment under test. The criterion of voltage sag consequence and the threshold of switch and non-switch equipment are put forward to realize the synchronization of source and load data and automatic VTC drawing. This paper also proposes an improved dichotomy test method which can be applied to sensitive equipment with rectangular and non-rectangular VTCs. Finally
the proposed automatic test method and improved dichotomy test method are verified by an automatic test simulation system and an actual physical test platform. The simulation results show that the automatic test method can realize the automatic test for voltage sag tolerance capability of sensitive equipment with multi-dimensional voltage sag characteristics. Both the simulation and actual test results show the improved dichotomy test method has high accuracy and test efficiency.
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