基于变步长原理的改进型高精度数字积分算法

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基于变步长原理的改进型高精度数字积分算法

更新时间：2025-08-13

- 基于变步长原理的改进型高精度数字积分算法
- Automation of Electric Power Systems Vol. 42, Issue 2, Pages: 136-142(2018)
- 作者机构：
  
  新能源微电网湖北省协同创新中心(三峡大学),湖北省,宜昌市,443002
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2018
- 稿件说明：
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LI Zhenhua. [J]. Automation of electric power systems, 2018, 42(2): 136-142.
DOI：

LI Zhenhua. [J]. Automation of electric power systems, 2018, 42(2): 136-142. DOI：

摘要

为解决电子式电流互感器测量中积分环节中低频噪声、电压漂移及测量精度问题，提高空心线圈电子式电流互感器的工程实用性，依据变步长积分算法的原理，提出一种改进型高精度数字积分算法。算法的频率特性与理想积分的误差相对于一些改进积分算法要小的多，同时该算法具有采样率适中、计算量少、精度高的优点。仿真实验结果表明，所提改进算法性能优良，具有更强的抵抗噪声干扰和电压漂移的能力。

Abstract

In order to solve the problems of low frequency noise

voltage drift and the measurement accuracy in the integral part of the electronic current transformer measurement and improve the engineering practicability of air-core coil electronic current transformer

an improved high-precision digital integral algorithm is proposed based on the principle of variable step integral algorithm. Compared to some other improved integral transfer functions

the error of the frequency characteristic and the ideal integral is much smaller. Meanwhile

the algorithm has the advantages of moderate sampling rate

less amount of calculation and high precision. The simulation results show that the improved algorithm has good performance and better ability of resisting noise and voltage drift.

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