| 应用采样方法的电力变压器程控试验装置 |
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| 引用本文： | 霍崇业 李远东. 应用采样方法的电力变压器程控试验装置[J]. 华南理工大学学报(自然科学版), 1996, 24(1): 103-108 |
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| 作者姓名： | 霍崇业 李远东 |
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| 作者单位： | 华南理工大学电力学院 |
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| 摘 要： | 本文描述了一套由计算机程序控制的电力变压器试验装置，该装置的主要特点是不必使用任何数字仪表和电量变送器，各电量的测试是采用离散采样，数据处理的方式来实现，文中分析了数据处理误差并给出了误差计算公式，由于电压调整系统对试验结果的准确性影响很大，采用１２位Ｄ／Ａ以ＰＩＤ方式控制发电机的励磁系统使试验电源电压能够平稳地升降，使得该装置的电压调整分辨率达０．０２５％的高水平。
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| 关 键 词： | 计算机控制 误差分析 电力变压器 试验装置 |
POWER TRANSFORMER PROGRAMMING TESTING DEVICE BASED-ON DISCRETE SAMPLING |
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| Huo Chongye, Li Yuandong. POWER TRANSFORMER PROGRAMMING TESTING DEVICE BASED-ON DISCRETE SAMPLING[J]. Journal of South China University of Technology(Natural Science Edition), 1996, 24(1): 103-108 |
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| Authors: | Huo Chongye Li Yuandong |
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| Abstract: | A power transformer automatic testing device controlled by a microcomputeris described in this paper.With sampling the required data point by point without any digital meters and parameter transducers the computer finds various values of current,voltage and power by data processing.Analysis of the errors introduced by data processing and the corresponding formulas are given.The accuracy of the test results is very much related to the voltage regulation system.The supply source is controlled in close-loop PID mode by regulating theexcitement of the dynamo-generator with a 12-bit D/A (digital-to-analog)converter.The voltage can be up and down smoothly so that its resolution can reach 0.025%. |
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| Keywords: | transformer test computer-aided control error analysis. |
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