电力系统自动化2017，Vol.41Issue(13)：156-161,6.DOI:10.7500/AEPS20161130025
适用于智能电网电能质量检测的双积分型电子式电压互感器
Electronic Voltage Transformer Based on Double Integrator for Power Quality Detection in Smart Grid
摘要
Abstract
It is difficult to meet the power quality detection requirements on wide frequency domain and high accuracy in the smart grid for existing voltage transformers.Implementation of the double integrator based electronic voltage transformer (EVT) is proposed, in which the main integrator and the assistant integrator work together to achieve both wide-band frequency response characteristics and the rapid transient response characteristics of the EVT.The principles of the double integrator based EVT are explained, and the frequency-response characteristics of both the main integrator and the assistant integrator are analyzed.The simulation analysis of harmonic and transient disturbance detection performance of the EVT and experiments on the EVT prototype are also conducted.The analysis and experimental results show that the double integrator based EVT can meet the requirements of less than 60 times of harmonic voltage detection with high accuracy.And its good performance on transforming transient disturbances is definitely in conformity with the smart grid's power quality requirements.关键词
电子式电压互感器/积分器/智能电网/谐波/暂态扰动Key words
electronic voltage transformer/integrator/smart grid/harmonics/transient disturbance引用本文复制引用
邵霞,彭红海,王娜..适用于智能电网电能质量检测的双积分型电子式电压互感器[J].电力系统自动化,2017,41(13):156-161,6.基金项目
湖南省科技计划资助项目(2015WK3002).This work is supported by Science and Technology Program of Hunan Province, China (No.2015WK3002). （2015WK3002）
