智能变电站数字化采样延时变频测量方法

BU Qiangsheng

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智能变电站数字化采样延时变频测量方法

更新时间：2025-08-13

- 智能变电站数字化采样延时变频测量方法
- Automation of Electric Power Systems Vol. 39, Issue 18, Pages: 86-90(2015)
- 作者机构：
  
  国网江苏省电力公司电力科学研究院,江苏省,南京市,211103
- 作者简介：
- 基金信息：
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- Published：2015
- 稿件说明：
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BU Qiangsheng. [J]. Automation of electric power systems, 2015, 39(18): 86-90.
DOI：

BU Qiangsheng. [J]. Automation of electric power systems, 2015, 39(18): 86-90. DOI：

摘要

采样延时是智能变电站数字化采样环节的重要指标。文中从数字化采样环节构成出发

分析了采样延时的特性及对二次系统的影响

针对普遍采用的工频稳态测量方法存在的问题

提出了基于变频原理的延时测量方法

能够准确测量出数字化采样环节的非整周期延时和整周期延时。通过模拟仿真和实际设备测试验证了延时变频测量法的正确性

最后给出了工程应用中变频法测量采样延时的具体实施方法。

Abstract

Sampling delay is an important index of digital sampling. Proceeding from the composition of each link of digital sampling

the characteristics of sampling delay and the influence on the secondary system are analyzed in detail. In view of the problems with the widely adopted steady power frequency testing method

frequency changing principle-based method of delay testing is put forward. This method can accurately measure the non-integral period and integral period delay of digital sampling. The correctness of the frequency changing method is verified by simulation and actual testing. Finally the specific implementation of delay testing by the frequency changing method is proposed for project application.

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Jiangsu Electric Power Company Research Institute

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