电力系统及其自动化学报2019，Vol.31Issue(4)：145-150,6.DOI:10.19635/j.cnki.csu-epsa.000034
基于自适应陷波器的三相有功功率的测量
Measurement of Three-phase Active Power Based on Adaptive Notch Filter
李静 1季海焦 2郭磊 3赵杰4
作者信息
- 1. 唐山工业职业技术学院自动化工程系,唐山 063299
- 2. 赛特科(唐山)科技有限公司,唐山063000
- 3. 国网石家庄市藁城区供电公司,石家庄 052160
- 4. 国网石家庄供电公司,石家庄 050000
- 折叠
摘要
Abstract
The wide use of all kinds of power electronic devices causes serious pollution to power network. How to mea?sure the active power accurately and rapidly in the presence of harmonics is an urgent problem,which is not only relat?ed to the safe and steady operation of power network,but also determines the calculation of relevant costs. In this pa?per,an adaptive notch filter(ANF)-based three-phase active power measurement method is proposed on the basis of the instantaneous reactive power theory. The three-phase voltage and current signals including harmonics are processed by ANF,then the obtained α-and β-axis components of fundamental wave and harmonics are used to calculate the corre?sponding active powers using the instantaneous reactive power theory. Simulation results show that this method can mea?sure the three-phase active power of fundamental wave and harmonics when the system is running in a steady state. When frequency changes,the measurement result can also keep a higher accuracy,and the active power fluctuation due to amplitude variation can be tracked rapidly.关键词
自适应陷波器/瞬时无功功率理论/有功功率/谐波/频率变化/幅值变化Key words
adaptive notch filter(ANF)/instantaneous reactive power theory/active power/harmonic/frequency varia⁃tion/amplitude variation分类
信息技术与安全科学引用本文复制引用
李静,季海焦,郭磊,赵杰..基于自适应陷波器的三相有功功率的测量[J].电力系统及其自动化学报,2019,31(4):145-150,6.
