| 模拟滤波器对电子电流互感器输出影响分析与补偿 |
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| 引用本文： | 王政平,张廷成. 模拟滤波器对电子电流互感器输出影响分析与补偿[J]. 哈尔滨工程大学学报, 2008, 29(12) |
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| 作者姓名： | 王政平 张廷成 |
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| 作者单位： | 哈尔滨工程大学,理学院,黑龙江,哈尔滨,150001;哈尔滨工程大学,理学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 温度变化会严重影响电子式电流互感器(electronic current transformers,ECT)输出信号的角差、比差精度,降低ECT的准确级.为了提高ECT的输出精度,保证其符合相关技术标准要求,提出了一种用于ECT的模拟滤波器的设计原理,分析了这种模拟滤波器对ECT角差、比差的影响,提出了利用软件技术对其进行补偿的技术方法.在国家授权检测单位对采用此技术的ECT进行的检测结果证实,采用该方法的ECT可满足相关技术标准对角差、比差测量精度的要求.
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| 关 键 词： | 电子式电流互感器 模拟低通滤波器 比差 角差 |
Using analog filters to compensate for output errors of electronic current transformers |
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| WANG Zheng-ping,ZHANG Ting-cheng. Using analog filters to compensate for output errors of electronic current transformers[J]. Journal of Harbin Engineering University, 2008, 29(12) |
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| Authors: | WANG Zheng-ping ZHANG Ting-cheng |
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| Affiliation: | College of Science;Harbin Engineering University;Harbin 150001;China |
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| Abstract: | Temperature variations in an electronic current transformer(ECT) influence the ratio error and phase displacement and reduce the accuracy class of the ECT.To improve the output accuracy and ensure that ECTs satisfy their corresponding technical standards,a design principle for analogue filters for ECT applications is proposed in this paper,and the effects of the filters on the ratio error and phase displacement of ECTs are analyzed,and a technical scheme using a software based digital filter to compensate f... |
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| Keywords: | electronic current transformer analog low-pass filter ratio error phase displacement |
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